阅读说明：本技术 一种耐高温阻燃防火高分子绝缘计算机电缆及加工方法 (High-temperature-resistant flame-retardant fireproof polymer insulated computer cable and processing method ) 是由 叶金理 于 2021-06-24 设计创作，主要内容包括：本发明公开了一种耐高温阻燃防火高分子绝缘计算机电缆及加工方法,涉及计算机电缆领域。该耐高温阻燃防火高分子绝缘计算机电缆,由里到外依次由预制线芯、内防护层和外防护层组成。该耐高温阻燃防火高分子绝缘计算机电缆,于内、外防护层和预制线芯之间设置以石棉纤维为主材的填料,使其耐高温和耐火能力得到大幅提升,满足计算机机房内高压环境的要求。该耐高温阻燃防火高分子绝缘计算机电缆加工方法,包括内外层油相制备、开炼、油浸和挤出成型四个步骤。该耐高温阻燃防火高分子绝缘计算机电缆加工方法,将电缆的各种原料按性质同时分类进行处理,根据原料特性对其加工条件进行精确控制,减轻了对原料性质的破坏,提升电缆质量。(The invention discloses a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable and a processing method thereof, and relates to the field of computer cables. The high-temperature-resistant flame-retardant fireproof polymer insulated computer cable sequentially comprises a prefabricated wire core, an inner protective layer and an outer protective layer from inside to outside. This high temperature resistant fire-retardant fire prevention polymer insulation computer cable sets up the filler that uses asbestos fiber as the principal materials between inside and outside inoxidizing coating and prefabricated sinle silk, makes its high temperature resistant and fire-resistant ability promoted by a wide margin, satisfies the requirement of high-pressure environment in the computer lab. The processing method of the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable comprises four steps of preparing an inner oil phase and an outer oil phase, open milling, oil immersion and extrusion molding. According to the processing method of the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable, various raw materials of the cable are simultaneously classified and processed according to properties, the processing conditions of the cable are accurately controlled according to the characteristics of the raw materials, the damage to the properties of the raw materials is reduced, and the quality of the cable is improved.)

1. The utility model provides a fire-retardant fire prevention polymer insulation computer cable of high temperature resistant which characterized in that: the cable comprises a prefabricated wire core, an inner protective layer and an outer protective layer from inside to outside in sequence, wherein the inner protective layer and the outer protective layer comprise the following raw materials in parts by weight: 100 parts of base material, 42-52 parts of asbestos fiber, 18-24 parts of insulating composite material, 12-16 parts of polyethylene oxide, 9.5-11.5 parts of zinc oxide, 4.2-6.8 parts of boron oxide, 2.5-3.5 parts of cellulose ether, 1.8-3.6 parts of accelerator TMDT, 2-3 parts of anti-aging agent, 2-3 parts of antioxidant and 1.2-1.6 parts of silane coupling agent.

2. The high temperature resistant flame retardant fireproof polymer insulated computer cable according to claim 1, characterized in that: the inner protective layer base material is silicon rubber, the outer protective layer base material is ethylene propylene diene monomer, and the proportion of the inner protective layer base material to the outer protective layer base material in parts by weight is 4: 6.

3. the high temperature resistant flame retardant fireproof polymer insulated computer cable according to claim 1, characterized in that: the insulating combined material consists of chlorinated paraffin and conductive carbon black, and the mixing ratio of the chlorinated paraffin to the conductive carbon black is 3: 1.

4. the high temperature resistant flame retardant fireproof polymer insulated computer cable according to claim 1, characterized in that: the antioxidant is any one of antioxidant TH-CPL, sodium metabisulfite or sodium bisulfite.

5. A processing method of a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable is characterized by comprising the following steps:

preparing an inner oil phase and an outer oil phase: pouring polyethylene oxide, zinc oxide and boron oxide in corresponding parts into a first oil phase pot, pouring insulating combined materials and cellulose ether in corresponding parts into a second oil phase pot, respectively pouring a certain amount of water into the first oil phase pot and the second oil phase pot, simultaneously heating and stirring the raw materials and the water in the first oil phase pot and the second oil phase pot, wherein the heating temperature in the first oil phase pot is constant at 70-80 ℃, the heating temperature in the second oil phase pot is constant at 45-55 ℃, the rotating speeds of stirring parts in the two groups of oil phase pots are controlled at 160-220rpm, heating and stirring for 30min, then adding silane coupling agent in corresponding parts into the first oil phase pot, then adding accelerating agent TMDT in corresponding parts into the second oil phase pot, continuously heating and stirring for 20min, stopping heating and stirring the first oil phase pot, pouring out the oil phase obtained in the first oil phase pot for later use, continuing to heat and stir the second oil phase pot for 15min, stopping heating and stirring the second oil phase pot, pouring out the oil phase obtained in the second oil phase pot for later use, wherein the oil phase obtained in the first oil phase pot is an outer protective layer oil phase, and the oil phase obtained in the second oil phase pot is an inner protective layer oil phase;

open mixing: respectively putting the inner protective layer base material and the outer protective layer base material in corresponding parts and the anti-aging agent and the antioxidant in corresponding parts into two groups of internal mixers for open milling at the temperature of 130-;

oil immersion: dividing the corresponding parts of asbestos fibers into two parts, respectively putting the two parts of asbestos fibers into two groups of pressurized reaction kettles, respectively pouring an inner protective layer oil phase and an outer protective layer oil phase into the two groups of pressurized reaction kettles, controlling the two groups of pressurized reaction kettles to pressurize, heat and stir the oil phases and the asbestos fibers, continuously pressurizing, heating and stirring for 1h, and taking out the paste prepared in the two groups of pressurized reaction kettles to obtain an inner protective layer filler and an outer protective layer filler;

and (3) extrusion molding: feeding the inner protection layer blank and the outer protection layer blank into an extruder to be extruded into a pipe to obtain an inner protection layer cable and an outer protection layer cable, respectively feeding the inner protection layer filler and the outer protection layer filler into the extruder, coating the inner protection layer filler on the outer wall of the inner protection layer cable, coating the outer protection layer filler on the outer wall of the outer protection layer cable to obtain an inner protection layer and an outer protection layer, coating the inner protection layer on the prefabricated wire core by using the extruder, coating the outer protection layer on the inner protection layer to obtain a finished cable product, polishing, inspecting, winding and packaging the finished cable product to obtain the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable.

6. The processing method of the high-temperature-resistant flame-retardant fireproof polymer insulation computer cable according to claim 5, characterized in that: in the step of preparing the inner and outer oil phases, after heating and stirring for 30min, the heating temperature in the first oil phase pot is controlled to rise to 75-85 ℃, and the heating temperature in the second oil phase pot is controlled to fall to 40-50 ℃.

7. The processing method of the high-temperature-resistant flame-retardant fireproof polymer insulation computer cable according to claim 5, characterized in that: the inner protective layer oil phase and the outer protective layer oil phase prepared in the inner and outer layer oil phase preparation steps need to be cooled to normal temperature.

8. The processing method of the high-temperature-resistant flame-retardant fireproof polymer insulation computer cable according to claim 5, characterized in that: the proportion of the two parts of asbestos fibers in the oil immersion step is 4: 6.

9. the high temperature resistant flame retardant fireproof polymer insulated computer cable and the processing method according to claim 5, wherein: in the oil immersion step, the pressure in the reaction kettle is controlled to be 0.78-0.98MPa, the heating temperature is constant at 60 ℃, and the stirring speed is 120 rpm.

Technical Field

The invention relates to the technical field of computer cables, in particular to a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable and a processing method thereof.

Background

Cables in a computer room are complex and gathered, heat generated during operation is high, fire hazard is large at high temperature in summer, electronic equipment in the computer room is large, static electricity also becomes a large cause of short circuit and fire, the existing part of cables are poor in high temperature resistance and antistatic capacity, the use requirements of high-voltage environments are difficult to meet, safety accidents are easy to cause, the service life is greatly shortened, and the practicability is poor; and part of the cables with the protective property are usually of a multilayer structure, the processing steps are complicated, the efficiency is low, the mass production is difficult, and the added protective material is difficult to be effectively utilized due to the limitation of the processing means, so that the popularization and the use are not facilitated.

Disclosure of Invention

Technical problem to be solved

The invention aims to provide a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable and a processing method thereof, so as to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a fire-retardant fire prevention polymer insulation computer cable of high temperature resistant, comprises prefabricated sinle silk, interior inoxidizing coating and outer inoxidizing coating from inside to outside in proper order, and interior inoxidizing coating and outer inoxidizing coating include the raw materials of following parts: 100 parts of base material, 42-52 parts of asbestos fiber, 18-24 parts of insulating composite material, 12-16 parts of polyethylene oxide, 9.5-11.5 parts of zinc oxide, 4.2-6.8 parts of boron oxide, 2.5-3.5 parts of cellulose ether, 1.8-3.6 parts of accelerator TMDT, 2-3 parts of anti-aging agent, 2-3 parts of antioxidant and 1.2-1.6 parts of silane coupling agent.

Preferably, the inner protective layer base material is silicon rubber, the outer protective layer base material is ethylene propylene diene monomer, and the ratio of the inner protective layer base material to the outer protective layer base material in parts by weight is 4: 6.

preferably, the insulating composite material consists of chlorinated paraffin and conductive carbon black, and the mixing ratio of the chlorinated paraffin to the conductive carbon black is 3: 1.

preferably, the antioxidant is any one of antioxidant TH-CPL, sodium metabisulfite or sodium bisulfite.

A processing method of a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable comprises the following steps:

preparing an inner oil phase and an outer oil phase: pouring polyethylene oxide, zinc oxide and boron oxide in corresponding parts into a first oil phase pot, pouring insulating combined materials and cellulose ether in corresponding parts into a second oil phase pot, respectively pouring a certain amount of water into the first oil phase pot and the second oil phase pot, simultaneously heating and stirring the raw materials and the water in the first oil phase pot and the second oil phase pot, wherein the heating temperature in the first oil phase pot is constant at 70-80 ℃, the heating temperature in the second oil phase pot is constant at 45-55 ℃, the rotating speeds of stirring parts in the two groups of oil phase pots are controlled at 160-220rpm, heating and stirring for 30min, then adding silane coupling agent in corresponding parts into the first oil phase pot, then adding accelerating agent TMDT in corresponding parts into the second oil phase pot, continuously heating and stirring for 20min, stopping heating and stirring the first oil phase pot, pouring out the oil phase obtained in the first oil phase pot for later use, continuing to heat and stir the second oil phase pot for 15min, stopping heating and stirring the second oil phase pot, pouring out the oil phase obtained in the second oil phase pot for later use, wherein the oil phase obtained in the first oil phase pot is an outer protective layer oil phase, and the oil phase obtained in the second oil phase pot is an inner protective layer oil phase;

open mixing: respectively putting the inner protective layer base material and the outer protective layer base material in corresponding parts and the anti-aging agent and the antioxidant in corresponding parts into two groups of internal mixers for open milling at the temperature of 130-;

oil immersion: dividing the corresponding parts of asbestos fibers into two parts, respectively putting the two parts of asbestos fibers into two groups of pressurized reaction kettles, respectively pouring an inner protective layer oil phase and an outer protective layer oil phase into the two groups of pressurized reaction kettles, controlling the two groups of pressurized reaction kettles to pressurize, heat and stir the oil phases and the asbestos fibers, continuously pressurizing, heating and stirring for 1h, and taking out the paste prepared in the two groups of pressurized reaction kettles to obtain an inner protective layer filler and an outer protective layer filler;

and (3) extrusion molding: feeding the inner protection layer blank and the outer protection layer blank into an extruder to be extruded into a pipe to obtain an inner protection layer cable and an outer protection layer cable, respectively feeding the inner protection layer filler and the outer protection layer filler into the extruder, coating the inner protection layer filler on the outer wall of the inner protection layer cable, coating the outer protection layer filler on the outer wall of the outer protection layer cable to obtain an inner protection layer and an outer protection layer, coating the inner protection layer on the prefabricated wire core by using the extruder, coating the outer protection layer on the inner protection layer to obtain a finished cable product, polishing, inspecting, winding and packaging the finished cable product to obtain the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable.

Preferably, in the step of preparing the inner and outer oil phases, after heating and stirring for 30min, the heating temperature in the first oil phase pot is controlled to rise to 75-85 ℃, and the heating temperature in the second oil phase pot is controlled to fall to 40-50 ℃.

Preferably, the inner protective layer oil phase and the outer protective layer oil phase prepared in the inner and outer layer oil phase preparation steps need to be cooled to normal temperature.

Preferably, the proportion of the two parts of asbestos fibers in the oil immersion step is 4: 6.

preferably, the pressure in the reaction kettle in the oil immersion step is controlled to be 0.78-0.98MPa, the heating temperature is constant at 60 ℃, and the stirring speed is 120 rpm.

(III) advantageous effects

Compared with the prior art, the invention provides a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable and a processing method thereof, and the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable has the following beneficial effects:

1. the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable is divided into four layers by removing the prefabricated wire core, wherein the inner protective layer and the outer protective layer respectively adopt two high-temperature-resistant rubbers of silicon rubber and ethylene propylene diene monomer rubber as base materials, the integral high-temperature-resistant capability is improved, a filler taking asbestos fiber as a main material is arranged between the inner protective layer and the prefabricated wire core, the prefabricated wire core is protected in multiple layers, the high-temperature-resistant and fireproof capabilities of the prefabricated wire core are greatly improved, the requirement of a high-pressure environment in a computer room is met, the cable can stably and safely carry out power transmission operation even in high-temperature summer, the possibility of short circuit and fire due to high temperature of the cable is reduced, the safety of the use environment is guaranteed, the potential safety hazard of safety accidents is reduced, various use requirements on the high-temperature environment are met, and meanwhile, antistatic materials are added inside and outside, the antistatic capability of the cable is improved, avoid the circuit electric leakage to make harm to all ring edge borders and people on the one hand, promote holistic protectiveness and security, on the other hand avoids the static that the places that electronic equipment such as computer lab gathered produced to the cable interference that causes, reduces the circuit short circuit that static arouses, the possibility of the condition of catching a fire, satisfies the operation requirement to the place of high temperature resistant, fire prevention and insulating nature higher requirement again, has widened use scene and scope.

2. This high temperature resistant fire-retardant fire prevention polymer insulation computer cable processing method, treat various raw materials of cable according to nature simultaneous classification, carry out accurate control to its processing condition according to the raw materials characteristic, compare in the cable processing technology of most commixing, effectively alleviate the destruction that causes raw materials nature, and then promoted the off-the-shelf quality of actual cable, the mixed filler that asbestos fiber and oil phase are constituteed can guarantee the good bending capability of cable when guaranteeing the outstanding protective properties of cable simultaneously, cable multilayer blank and filler are separately prepared the back and are passed through extruder cladding forming, each raw materials adds and carries out each other simultaneously and do not influence, be fit for mass production and prepare, it is consuming time to have shortened processing, production machining efficiency obtains great promotion, the step is simple, and convenient for operation, scientific and practical, and the popularization and use are favorable to.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

the utility model provides a fire-retardant fire prevention polymer insulation computer cable of high temperature resistant, comprises prefabricated sinle silk, interior inoxidizing coating and outer inoxidizing coating from inside to outside in proper order, and interior inoxidizing coating and outer inoxidizing coating include the raw materials of following parts: 100 parts of base material, 42 parts of asbestos fiber, 18 parts of insulating composite material, 12 parts of polyoxyethylene, 9.5 parts of zinc oxide, 4.2 parts of boron oxide, 2.5 parts of cellulose ether, 1.8 parts of accelerating agent TMDT, 2 parts of anti-aging agent, 2 parts of antioxidant and 1.2 parts of silane coupling agent, wherein the base material of the inner protective layer is silicon rubber, the base material of the outer protective layer is ethylene propylene diene monomer, and the proportion of the base material of the inner protective layer and the base material of the outer protective layer in the total parts is 4: 6, the insulating combined material consists of chlorinated paraffin and conductive carbon black, and the mixing ratio of the chlorinated paraffin to the conductive carbon black is 3: 1, the antioxidant is an antioxidant TH-CPL.

A processing method of a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable comprises the following steps:

the method comprises the following steps: pouring polyethylene oxide, zinc oxide and boron oxide in corresponding parts into a first oil phase pot, pouring insulating combined materials and cellulose ether in corresponding parts into a second oil phase pot, respectively pouring a certain amount of water into the first oil phase pot and the second oil phase pot, simultaneously heating and stirring the raw materials and the water in the first oil phase pot and the second oil phase pot, controlling the heating temperature in the first oil phase pot to be 70 ℃ and the heating temperature in the second oil phase pot to be 45 ℃, controlling the rotating speed of stirring parts in the two groups of oil phase pots to be 160rpm, heating and stirring for 30min, controlling the heating temperature in the first oil phase pot to be increased to 75 ℃, controlling the heating temperature in the second oil phase pot to be reduced to 40 ℃, adding silane coupling agent in corresponding parts in the first oil phase pot, adding accelerator TMDT in corresponding parts in the second oil phase pot, continuously heating and stirring for 20min simultaneously, stopping heating and stirring the first oil phase pot, pouring out the oil phase obtained in the first oil phase pot for later use, continuing to heat and stir the second oil phase pot for 15min, stopping heating and stirring the second oil phase pot, pouring out the oil phase obtained in the second oil phase pot for later use, wherein the oil phase obtained in the first oil phase pot is an oil phase with an outer protective layer, the oil phase obtained in the second oil phase pot is an oil phase with an inner protective layer, and the prepared oil phase with the inner protective layer and the oil phase with the outer protective layer are cooled to normal temperature;

step two: respectively putting the inner protective layer base material and the outer protective layer base material in corresponding parts and the anti-aging agent and the antioxidant in corresponding parts into two groups of internal mixers for open milling, wherein the open milling temperature is 130 ℃, the internal mixer top plug pressure is controlled to be 0.9mpa, and the open milling is carried out for 30min to respectively obtain an inner protective layer blank and an outer protective layer blank;

step three: dividing the corresponding parts of asbestos fibers into two parts, wherein the proportion of the two parts of asbestos fibers is 4: 6, respectively putting two parts of asbestos fibers into two groups of pressurized reaction kettles, respectively pouring an inner protective layer oil phase and an outer protective layer oil phase into the two groups of reaction kettles, controlling the two groups of pressurized reaction kettles to pressurize, heat and stir the oil phases and the asbestos fibers, continuously pressurizing, heating and stirring for 1h, controlling the pressure in the reaction kettles to be 0.78MPa, keeping the heating temperature constant at 60 ℃, stirring the rotation speed at 120rpm, and taking out the paste prepared in the two groups of reaction kettles to obtain an inner protective layer filler and an outer protective layer filler;

step four: feeding the inner protection layer blank and the outer protection layer blank into an extruder to be extruded into a pipe to obtain an inner protection layer cable and an outer protection layer cable, respectively feeding the inner protection layer filler and the outer protection layer filler into the extruder, coating the inner protection layer filler on the outer wall of the inner protection layer cable, coating the outer protection layer filler on the outer wall of the outer protection layer cable to obtain an inner protection layer and an outer protection layer, coating the inner protection layer on the prefabricated wire core by using the extruder, coating the outer protection layer on the inner protection layer to obtain a finished cable product, polishing, inspecting, winding and packaging the finished cable product to obtain the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable.

Example two:

the utility model provides a fire-retardant fire prevention polymer insulation computer cable of high temperature resistant, comprises prefabricated sinle silk, interior inoxidizing coating and outer inoxidizing coating from inside to outside in proper order, and interior inoxidizing coating and outer inoxidizing coating include the raw materials of following parts: 100 parts of base material, 47 parts of asbestos fiber, 21 parts of insulating composite material, 14 parts of polyoxyethylene, 10.5 parts of zinc oxide, 5.5 parts of boron oxide, 3 parts of cellulose ether, 2.7 parts of accelerant TMDT, 2.5 parts of anti-aging agent, 2.5 parts of antioxidant and 1.4 parts of silane coupling agent, wherein the base material of the inner protective layer is silicon rubber, the base material of the outer protective layer is ethylene propylene diene monomer, and the proportion of the base materials of the inner protective layer and the outer protective layer in the total parts is 4: 6, the insulating combined material consists of chlorinated paraffin and conductive carbon black, and the mixing ratio of the chlorinated paraffin to the conductive carbon black is 3: 1, the antioxidant is sodium metabisulfite.

A processing method of a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable comprises the following steps:

the method comprises the following steps: pouring polyethylene oxide, zinc oxide and boron oxide in corresponding parts into a first oil phase pot, pouring insulating combined materials and cellulose ether in corresponding parts into a second oil phase pot, respectively pouring a certain amount of water into the first oil phase pot and the second oil phase pot, simultaneously heating and stirring the raw materials and the water in the first oil phase pot and the second oil phase pot, controlling the heating temperature in the first oil phase pot to be 75 ℃ and the heating temperature in the second oil phase pot to be 50 ℃, controlling the rotation speed of stirring parts in the two groups of oil phase pots to be 190rpm, heating and stirring for 30min, controlling the heating temperature in the first oil phase pot to be increased to 80 ℃, controlling the heating temperature in the second oil phase pot to be decreased to 45 ℃, adding silane coupling agent in corresponding parts in the first oil phase pot, adding accelerator TMDT in corresponding parts in the second oil phase pot, continuously heating and stirring for 20min simultaneously, stopping heating and stirring the first oil phase pot, pouring out the oil phase obtained in the first oil phase pot for later use, continuing to heat and stir the second oil phase pot for 15min, stopping heating and stirring the second oil phase pot, pouring out the oil phase obtained in the second oil phase pot for later use, wherein the oil phase obtained in the first oil phase pot is an oil phase with an outer protective layer, the oil phase obtained in the second oil phase pot is an oil phase with an inner protective layer, and the prepared oil phase with the inner protective layer and the oil phase with the outer protective layer are cooled to normal temperature;

step two: respectively putting the inner protection layer base material and the outer protection layer base material in corresponding parts and the anti-aging agent and the antioxidant in corresponding parts into two groups of internal mixers for open milling at the temperature of 140 ℃ under the control of the top plug pressure of 1.0mpa for 30min to respectively obtain an inner protection layer blank and an outer protection layer blank;

step three: dividing the corresponding parts of asbestos fibers into two parts, wherein the proportion of the two parts of asbestos fibers is 4: 6, respectively putting two parts of asbestos fibers into two groups of pressurized reaction kettles, respectively pouring an inner protective layer oil phase and an outer protective layer oil phase into the two groups of reaction kettles, controlling the two groups of pressurized reaction kettles to pressurize, heat and stir the oil phases and the asbestos fibers, continuously pressurizing, heating and stirring for 1h, controlling the pressure in the reaction kettles to be 0.88MPa, keeping the heating temperature constant at 60 ℃, stirring the rotation speed at 120rpm, and taking out the paste prepared in the two groups of reaction kettles to obtain an inner protective layer filler and an outer protective layer filler;

step four: feeding the inner protection layer blank and the outer protection layer blank into an extruder to be extruded into a pipe to obtain an inner protection layer cable and an outer protection layer cable, respectively feeding the inner protection layer filler and the outer protection layer filler into the extruder, coating the inner protection layer filler on the outer wall of the inner protection layer cable, coating the outer protection layer filler on the outer wall of the outer protection layer cable to obtain an inner protection layer and an outer protection layer, coating the inner protection layer on the prefabricated wire core by using the extruder, coating the outer protection layer on the inner protection layer to obtain a finished cable product, polishing, inspecting, winding and packaging the finished cable product to obtain the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable.

Example three:

the utility model provides a fire-retardant fire prevention polymer insulation computer cable of high temperature resistant, comprises prefabricated sinle silk, interior inoxidizing coating and outer inoxidizing coating from inside to outside in proper order, and interior inoxidizing coating and outer inoxidizing coating include the raw materials of following parts: 100 parts of base material, 52 parts of asbestos fiber, 24 parts of insulating composite material, 16 parts of polyoxyethylene, 11.5 parts of zinc oxide, 6.8 parts of boron oxide, 3.5 parts of cellulose ether, 3.6 parts of accelerant TMDT, 3 parts of anti-aging agent, 3 parts of antioxidant and 1.6 parts of silane coupling agent, wherein the base material of the inner protective layer is silicon rubber, the base material of the outer protective layer is ethylene propylene diene monomer, and the proportion of the base material of the inner protective layer and the base material of the outer protective layer in the total parts is 4: 6, the insulating combined material consists of chlorinated paraffin and conductive carbon black, and the mixing ratio of the chlorinated paraffin to the conductive carbon black is 3: 1, the antioxidant is sodium bisulfite.

A processing method of a high-temperature-resistant flame-retardant fireproof polymer insulated computer cable comprises the following steps:

the method comprises the following steps: pouring polyethylene oxide, zinc oxide and boron oxide in corresponding parts into a first oil phase pot, pouring insulating combined materials and cellulose ether in corresponding parts into a second oil phase pot, respectively pouring a certain amount of water into the first oil phase pot and the second oil phase pot, simultaneously heating and stirring the raw materials and the water in the first oil phase pot and the second oil phase pot, controlling the heating temperature in the first oil phase pot to be 80 ℃ and the heating temperature in the second oil phase pot to be 55 ℃, controlling the rotating speed of stirring parts in the two groups of oil phase pots to be 220rpm, heating and stirring for 30min, controlling the heating temperature in the first oil phase pot to rise to 85 ℃, controlling the heating temperature in the second oil phase pot to fall to 50 ℃, adding silane coupling agent in corresponding parts in the first oil phase pot, adding accelerator TMDT in corresponding parts in the second oil phase pot, continuously heating and stirring for 20min simultaneously, stopping heating and stirring the first oil phase pot, pouring out the oil phase obtained in the first oil phase pot for later use, continuing to heat and stir the second oil phase pot for 15min, stopping heating and stirring the second oil phase pot, pouring out the oil phase obtained in the second oil phase pot for later use, wherein the oil phase obtained in the first oil phase pot is an oil phase with an outer protective layer, the oil phase obtained in the second oil phase pot is an oil phase with an inner protective layer, and the prepared oil phase with the inner protective layer and the oil phase with the outer protective layer are cooled to normal temperature;

step two: respectively putting the inner protective layer base material and the outer protective layer base material in corresponding parts and the anti-aging agent and the antioxidant in corresponding parts into two groups of internal mixers for open milling at the temperature of 150 ℃ under the control of the top plug pressure of the internal mixers at 1.1mpa for 30min to respectively obtain an inner protective layer blank and an outer protective layer blank;

step three: dividing the corresponding parts of asbestos fibers into two parts, wherein the proportion of the two parts of asbestos fibers is 4: 6, respectively putting two parts of asbestos fibers into two groups of pressurized reaction kettles, respectively pouring an inner protective layer oil phase and an outer protective layer oil phase into the two groups of reaction kettles, controlling the two groups of pressurized reaction kettles to pressurize, heat and stir the oil phases and the asbestos fibers, continuously pressurizing, heating and stirring for 1h, controlling the pressure in the reaction kettles to be 0.98MPa, keeping the heating temperature constant at 60 ℃, stirring the rotation speed at 120rpm, and taking out the paste prepared in the two groups of reaction kettles to obtain an inner protective layer filler and an outer protective layer filler;

step four: feeding the inner protection layer blank and the outer protection layer blank into an extruder to be extruded into a pipe to obtain an inner protection layer cable and an outer protection layer cable, respectively feeding the inner protection layer filler and the outer protection layer filler into the extruder, coating the inner protection layer filler on the outer wall of the inner protection layer cable, coating the outer protection layer filler on the outer wall of the outer protection layer cable to obtain an inner protection layer and an outer protection layer, coating the inner protection layer on the prefabricated wire core by using the extruder, coating the outer protection layer on the inner protection layer to obtain a finished cable product, polishing, inspecting, winding and packaging the finished cable product to obtain the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable.

It can be seen from this that: the high temperature resistant flame-retardant fireproof polymer insulated computer cable has the advantages that the high temperature resistant and antistatic capability of part of the existing cables is poor, the use requirements of high-pressure environments are difficult to meet, safety accidents are easy to cause, the service life is greatly shortened, the practicability is poor, the high temperature resistant flame-retardant fireproof polymer insulated computer cable is totally divided into four layers after the prefabricated wire cores are removed, two high temperature resistant rubbers of silicon rubber and ethylene propylene diene monomer are respectively adopted as base materials for an inner protective layer and an outer protective layer, the integral high temperature resistant capability is improved, a filler taking asbestos fiber as a main material is arranged between the inner protective layer and the outer protective layer and the prefabricated wire cores, the multilayer protection is carried out on the prefabricated wire cores, the high temperature resistant capability and the fireproof capability of the prefabricated wire cores are greatly improved, the requirements of the high-pressure environments in a computer room are met, even in high-temperature summer, the cable can stably and safely carry out power transmission operation, and the possibility of short circuit and fire occurrence of the cable due to high temperature is reduced, the safety of the use environment is guaranteed, the hidden danger of safety accidents is reduced, and various use requirements on the high-temperature environment are met; part of cables with protective properties are usually of a multilayer structure, the processing steps are complex and complicated, the efficiency is low, mass production is difficult, the added protective materials are difficult to effectively utilize due to the limitation of processing means and are not beneficial to popularization and use, the processing method of the high-temperature-resistant flame-retardant fireproof polymer insulated computer cable is characterized in that various raw materials of the cable are simultaneously classified and processed according to the properties, the processing conditions are accurately controlled according to the characteristics of the raw materials, compared with the processing technology of most blended cables, the damage to the properties of the raw materials is effectively reduced, the quality of actual cable finished products is improved, meanwhile, the mixed filler composed of asbestos fibers and oil phases can ensure the excellent protective performance of the cable and simultaneously ensure the excellent bending capability of the cable, the multilayer blanks and the filler of the cable are separately prepared and then are coated and molded by an extruder, and the raw materials are simultaneously and do not mutually influence during processing, is suitable for mass production and preparation, shortens the time consumption of processing, greatly improves the production and processing efficiency, and is favorable for popularization and use.