阅读说明：本技术 一种纤维浸胶体系、钢丝挂胶体系及其制备方法 (Fiber gum dipping system, steel wire rubberizing system and preparation method thereof ) 是由 王丹 李代强 蹇海波 吴晓宇 刘兴华 张小刚 华松 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种纤维浸胶体系、钢丝挂胶体系及其制备方法,涉及橡胶技术领域。其包括如下重量份数计的原料：天然橡胶70-100份,炭黑5-10份,白炭黑15-25份,间苯二酚缩甲醛树脂2-3份,增粘树脂1-5份,化工助剂5-10份,稳定剂0.1-5份,汽油30-150份。通过对骨架材料进行浸胶或挂胶处理,以使得骨架材料的表面覆胶,覆胶后的骨架材料可以贴附于轮胎需要表面增强的部位,从而提升轮胎的表面强度。这样设置,可以避免和减轻轮胎受外力例如刮伤,刺伤,割伤等的破坏,从而延长了轮胎的使用寿命。(The invention discloses a fiber gum dipping system, a steel wire rubberizing system and a preparation method thereof, and relates to the technical field of rubber. The composite material comprises the following raw materials in parts by weight: 70-100 parts of natural rubber, 5-10 parts of carbon black, 15-25 parts of white carbon black, 2-3 parts of resorcinol formal resin, 1-5 parts of tackifying resin, 5-10 parts of chemical auxiliary agent, 0.1-5 parts of stabilizer and 30-150 parts of gasoline. The framework material is subjected to gum dipping or gum hanging treatment, so that the surface of the framework material is coated with the gum, and the coated framework material can be attached to the part of the tire, which needs surface enhancement, and the surface strength of the tire is improved. By the arrangement, the damage of the tire caused by external force such as scratch, puncture, cut and the like can be avoided and reduced, so that the service life of the tire is prolonged.)

1. A fiber gum dipping system is characterized by comprising the following raw materials in parts by weight: 70-100 parts of natural rubber, 5-10 parts of carbon black, 15-25 parts of white carbon black, 2-3 parts of resorcinol formal resin, 1-5 parts of tackifying resin, 5-10 parts of chemical auxiliary agents, 0.1-5 parts of stabilizing agents and 30-150 parts of gasoline, wherein the chemical auxiliary agents comprise at least two of an anti-aging agent, a vulcanizing agent, an accelerator, a silane coupling agent and zinc oxide.

2. The fiber impregnation system of claim 1, characterized in that it comprises the following raw materials in parts by weight: 80-100 parts of natural rubber, 5-8 parts of carbon black, 15-25 parts of white carbon black, 2-3 parts of resorcinol formal resin, 3-5 parts of tackifying resin, 5-15 parts of chemical auxiliary agents, 0.1-5 parts of stabilizing agents and 80-120 parts of gasoline, wherein the chemical auxiliary agents comprise at least two of an anti-aging agent, a vulcanizing agent, an accelerator, a silane coupling agent and zinc oxide.

3. The fiber dipping system according to claim 1 or 2, wherein the chemical auxiliary agent comprises the following raw materials in parts by weight: 2-3 parts of anti-aging agent, 2-3 parts of vulcanizing agent, 1-2 parts of accelerator, 1.5-2.5 parts of silane coupling agent and 5-10 parts of zinc oxide;

preferably, the accelerator is DZ.

4. The fiber impregnation system according to claim 3, wherein the stabilizer is selected from plasticizers, preferably the plasticizer is a phthalate, an aliphatic dibasic acid ester, a soap salt of zinc stearate, a polyol ester, an epoxy hydrocarbon or an alkyl sulfonate.

5. The fiber dipping system of claim 1 or 2, wherein the tackifying resin comprises a natural resin and/or a synthetic resin; the natural resin is selected from at least one of the following natural resins: rosin, rosin derivatives, and terpene resins; the synthetic resin is selected from at least one of the following synthetic resins: polymeric resins and condensation resins;

preferably, the polymeric resin is selected from petroleum resins, dicyclopentadiene (DCPD) resins, coumarone-indene resins or styrene series resins; the condensation resin is selected from alkyl phenolic resin or xylene resin;

preferably, the natural gum is No. 3 smoked sheet gum.

6. A method for preparing a fibre impregnation system according to any one of claims 1 to 5, characterized in that it comprises the following steps: mixing the raw materials for preparing the fiber dipping system, and then placing the raw materials into gasoline to obtain a fiber dipping system;

preferably, the mixing comprises plastic mixing, masterbatch mixing and one-step mixing which are sequentially carried out; the plastic mixing comprises the steps of mixing natural rubber in an internal mixer to prepare plastic; the master batch mixing comprises the steps of placing the plastic, the zinc oxide, the white carbon black, the stabilizer and the like into a mixing roll for mixing to prepare the master batch; the one-step mixing comprises the steps of placing the master batch, stearic acid, carbon black and an anti-aging agent into a mixing roll for mixing;

preferably, when the plastic mixing is carried out, the rotating speed of the internal mixer is set to be 30-55rpm, the bolt is extracted for 20-25 seconds after the bolt is pressed for 55-60 seconds, and then the material is discharged after the bolt is pressed to 160-165 ℃; airing for 4-8 hours;

preferably, when the master batch is mixed, the rotation speed of an internal mixer is set to be 30-55rpm, the master batch mixing raw materials are added into the internal mixer, after 25-30 seconds of bolt pressing, bolt extraction is kept for 3-5 seconds, then after the bolt pressing is carried out to 130-155 ℃, the bolt extraction is kept for 15-20 seconds, and then the bolt pressing is carried out to 150-155 ℃ and then discharging is carried out; airing for 8-24 hours;

preferably, when the primary mixing is carried out, the rotation speed of an internal mixer is set to be 30-55rpm, the primary mixing raw materials are added into the internal mixer, after 55-60 seconds of bolt pressing, bolt extraction is kept for 15-20 seconds, then bolt pressing is carried out to 150-.

7. A method for surface treatment of a fibrous framework material using the fiber dipping system of any one of claims 1-5 or the fiber dipping system prepared by the preparation method of claim 6, wherein the method for surface treatment of the fibrous framework material comprises placing the fibrous framework material to be treated in the fiber dipping system;

preferably, the fiber framework material after surface treatment is cut; and then covering the tire at the position needing reinforcement.

8. The utility model provides a be used for outside reinforcement steel wire kiss-coating system of tire which characterized in that, it includes the raw materials of part by weight as follows: 70-100 parts of natural rubber, 5-10 parts of carbon black, 15-25 parts of white carbon black, 2-3 parts of resorcinol formal resin, 1-5 parts of tackifying resin, 5-15 parts of chemical auxiliary agents and 0.5-2 parts of cobalt salt, wherein the chemical auxiliary agents comprise at least two of an anti-aging agent, a vulcanizing agent, an accelerator, a silane coupling agent and zinc oxide.

9. The steel wire hanging rubber system for external reinforcement of tires according to claim 8, characterized in that it comprises the following raw materials in parts by weight: 90-100 parts of natural rubber, 5-7 parts of carbon black, 18-20 parts of white carbon black, 2-3 parts of resorcinol formal resin, 1-5 parts of tackifying resin, 5-15 parts of chemical auxiliary agent and 0.5-2 parts of cobalt salt; the chemical auxiliary agent comprises at least two of an anti-aging agent, a vulcanizing agent, an accelerator, a silane coupling agent and zinc oxide;

preferably, the natural gum is No. 3 smoked sheet gum, and preferably, the chemical auxiliary comprises the following raw materials in parts by weight: 2-3 parts of anti-aging agent, 2-3 parts of vulcanizing agent, 1-2 parts of accelerator, 1.5-2.5 parts of silane coupling agent and 5-10 parts of zinc oxide.

10. A method for topping a steel cord surface using the system for topping a tire outer reinforcing steel cord according to any one of claims 8 to 9, wherein the method for topping a steel cord surface comprises: after the raw materials of the steel wire rubberizing system are mixed to obtain the steel wire rubberizing system, a calender is used for carrying out steel wire surface rubberizing on the prepared steel wire rubberizing system through a calendering process to obtain a steel cord fabric;

preferably, after the rubber coating on the surface of the steel wire is finished, the surface of the steel wire cord fabric is coated with a rubber layer.

Technical Field

The invention relates to the technical field of rubber, in particular to a fiber gumming system, a steel wire rubberizing system and a preparation method thereof.

Background

The world energy and mineral resources are complete in variety, rich in resources and wide in distribution. The development of the Chinese mining industry, particularly the rise of mining cities, changes the regional economic pattern to a great extent, and plays an important role in promoting the regional economic development of remote regions and minority regions in China. Due to the influence of Chinese objective geological conditions, mineral resources are rich in remote areas where minority nationalities live together in China, and important promotion effects are generated on economic development and poverty removal and enrichment in the areas through development of the mineral resources and the rise of mining cities. Along with the development of human economy, the development of mineral resources is more and more intensive, the transportation of the mineral resources in severe environments such as mines and construction sites puts a high requirement on the external damage resistance of tires, and in addition, other environments such as forest operation put higher external damage resistance requirements on the tires. The conventional tire cannot meet the requirement of severe environment operation, and the service life of the tire is generally short.

In view of this, the invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a fiber gumming system, a steel wire gumming system and a preparation method thereof so as to solve the technical problems.

The invention provides a scheme capable of performing glue coating treatment on a framework material, which is characterized in that the framework material is subjected to glue dipping or hanging treatment so as to coat glue on the surface of the framework material, and the coated framework material can be attached to a part of a tire, which needs surface enhancement, so that the surface strength of the tire is improved. By the arrangement, the damage of the tire caused by external force can be avoided and reduced, and the service life of the tire is prolonged.

The invention is realized by the following steps:

the invention provides a fiber gum dipping system which comprises the following raw materials in parts by weight: 70-100 parts of natural rubber, 5-10 parts of carbon black, 15-25 parts of white carbon black, 2-3 parts of resorcinol formal resin, 1-5 parts of tackifying resin, 5-10 parts of chemical auxiliary agent, 0.1-5 parts of stabilizer and 30-150 parts of gasoline. The chemical auxiliary agent comprises at least two of an anti-aging agent, a vulcanizing agent, an accelerator, a silane coupling agent and zinc oxide.

The invention provides a fiber gum dipping system which comprises the following raw materials in parts by weight: 80-100 parts of natural rubber, 5-8 parts of carbon black, 15-25 parts of white carbon black, 2-3 parts of resorcinol formal resin, 3-5 parts of tackifying resin, 5-10 parts of chemical auxiliary agent, 0.1-5 parts of stabilizer and 80-120 parts of gasoline. The chemical auxiliary agent comprises at least two of an anti-aging agent, a vulcanizing agent, an accelerator, a silane coupling agent and zinc oxide.

The inventors have found that the use of the above fiber dipping system enables the application of a coating on the surface of a fiber, and the fiber coated with the coating can be applied to the surface of a tire. When the surface of the finished tyre is subjected to external mechanical force, the rigidity of the fiber material is higher than that of the rubber, so that the damage of the tyre caused by external force can be avoided and alleviated, and the service life of the tyre is prolonged.

The fibers may be natural fibers, chemical fibers or other special fibers; the natural fibers may be vegetable fibers, animal fibers or mineral fibers.

The chemical fibers may be rayon, synthetic fibers or inorganic fibers. The artificial fiber can be selected from viscose fiber and acetate fiber; the synthetic fiber can be selected from polyester fiber (terylene), polyamide fiber (chinlon or nylon), polyvinyl alcohol fiber (vinylon), polyacrylonitrile fiber (acrylon), polypropylene fiber (polypropylene) or polyvinyl chloride fiber (polyvinyl chloride).

The inorganic fibers may be selected from glass fibers, metal fibers or carbon fibers.

In a preferred embodiment of the present invention, the chemical auxiliary agent includes at least two of an anti-aging agent, a vulcanizing agent, an accelerator, and a silane coupling agent. Optionally, the chemical auxiliary agent comprises an anti-aging agent and a vulcanizing agent; optionally, the chemical auxiliary agent comprises an accelerator and a silane coupling agent.

The chemical auxiliary comprises the following raw materials in parts by weight: 2-3 parts of anti-aging agent, 2-3 parts of vulcanizing agent, 1-2 parts of accelerator, 1.5-2.5 parts of silane coupling agent and 5-10 parts of zinc oxide.

Optionally, the vulcanizing agent is sulfur and/or 4, 4' -dithiodimorpholine. The silane coupling agent may be selected as a151, a171 or a 172.

In addition, in other embodiments, the chemical auxiliary agent may also be a scorch retarder.

The accelerator is DZ.

In a preferred embodiment of the present invention, the above-mentioned stabilizer is selected from plasticizers, preferably, the plasticizer is zinc stearate soap salt, epoxy hydrocarbons, phthalate ester, polyol ester, aliphatic dibasic acid ester or alkyl sulfonate. The plasticizer functions to increase the plasticity of the dipping system, and in other embodiments, other types of plasticizers may be added as needed, and are not limited to the above types of plasticizers.

In a preferred embodiment of the present invention, the tackifying resin comprises a natural resin and/or a synthetic resin; the natural resin is selected from at least one of the following natural resins: rosin, rosin derivatives, and terpene resins; the synthetic resin is selected from at least one of the following synthetic resins: polymeric resins and condensation resins.

Preferably, the polymeric resin is selected from petroleum resins, dicyclopentadiene (DCPD) resins, coumarone-indene resins or styrene series resins; the condensation resin is selected from alkyl phenolic resin or xylene resin.

The tackifier resin functions as a compounding agent to increase the adhesive force of each raw material.

Optionally, the natural rubber is No. 3 smoked sheet rubber.

The invention provides a rubber coating system for a reinforcing steel wire outside a tire, which comprises the following raw materials in parts by weight: 70-100 parts of natural rubber, 5-10 parts of carbon black, 15-25 parts of white carbon black, 2-3 parts of resorcinol formal resin, 1-5 parts of tackifying resin, 5-10 parts of chemical auxiliary agent and 0.5-2 parts of cobalt salt. The chemical auxiliary agent comprises at least two of an anti-aging agent, a vulcanizing agent, an accelerator, a silane coupling agent and zinc oxide.

The invention provides a steel wire hanging glue system which comprises the following raw materials in parts by weight: 90-100 parts of natural rubber, 5-7 parts of carbon black, 18-20 parts of white carbon black, 2-3 parts of resorcinol formal resin, 1-5 parts of tackifying resin, 5-8 parts of chemical auxiliary agent and 0.5-2 parts of cobalt salt;

preferably, the natural rubber is No. 3 smoke sheet rubber, and preferably, the chemical auxiliary agents comprise an anti-aging agent, a vulcanizing agent, a silane coupling agent and the like. The chemical auxiliary comprises the following raw materials in parts by weight: 2-3 parts of anti-aging agent, 2-3 parts of vulcanizing agent, 1-2 parts of accelerator, 1.5-2.5 parts of silane coupling agent and 5-10 parts of zinc oxide.

The cobalt salt may be selected from cobalt decanoate, cobalt carboxyboronate or cobalt naphthenate. The addition of cobalt salts may promote adhesion.

Optionally, the tackifying resin and the chemical resin contained in the steel wire rubberizing system have the same composition as the tackifying resin and the chemical resin in the fiber gumming system.

A preparation method of a fiber dipping system comprises the following steps: mixing the raw materials for preparing the fiber dipping system, and then placing the mixture into gasoline to obtain the fiber dipping system.

In a preferred embodiment of the present invention, the mixing includes plastic mixing, masterbatch mixing and one-step mixing in sequence; the plastic mixing comprises the steps of mixing natural rubber in an internal mixer to prepare plastic; the master batch mixing comprises the steps of placing plastic, zinc oxide, white carbon black, a stabilizer and a silane coupling agent into a mixing roll for mixing to prepare master batch; the one-step mixing comprises the step of mixing the master batch, stearic acid, carbon black and the anti-aging agent in a mixing mill.

In a preferred embodiment of the invention, during the plastic mixing, the rotation speed of the internal mixer is set to be 30-55rpm, the bolt is extracted for 20-25 seconds after the bolt is pressed for 55-60 seconds, and then the bolt is pressed to 160-165 ℃ and discharged; and airing for 4-8 hours.

In a preferred embodiment of the application of the invention, when the masterbatch mixing is carried out, the rotation speed of the internal mixer is set to be 30-55rpm, the masterbatch mixing raw material is added into the internal mixer, after 25-30 seconds of bolt pressing, bolt lifting is kept for 3-5 seconds, then bolt pressing is carried out to 130-155 ℃, bolt lifting is kept for 15-20 seconds, and then bolt pressing is carried out to 150-155 ℃ and then discharging is carried out; and drying for 8-24 hours.

In a preferred embodiment of the invention, when the primary mixing is carried out, the rotation speed of the internal mixer is set to be 30-55rpm, the primary mixing raw materials are added into the internal mixer, the plug is extracted for 15-20 seconds after the plug is pressed for 55-60 seconds, then the plug is pressed to 150-. Optionally, cooling to room temperature.

The invention also provides a method for carrying out surface treatment on the fiber framework material by using the fiber dipping system or the fiber dipping system prepared by the preparation method, wherein the method for carrying out surface treatment on the fiber framework material comprises the step of placing the fiber framework material to be treated in the fiber dipping system.

Preferably, the fiber framework material after surface treatment is cut; and then covering the tire at the position needing reinforcement. Optionally, the fiber framework material after surface treatment is compounded with the outer surface of the tire by using external pressure to produce an unvulcanized tire blank, and the tire blank is put into a vulcanizing oven to be vulcanized together to produce a finished tire.

The invention also provides a method for coating the surface of the steel wire by using the steel wire coating system, which comprises the following steps: and (3) after the raw materials of the steel wire rubberizing system are mixed to prepare the steel wire rubberizing system, using a calender to finish the steel wire surface rubberizing of the prepared steel wire rubberizing system through a calendering process to prepare the steel wire cord fabric.

Alternatively, gasoline and cement may be used to coat the surface of the steel cord fabric in order to enhance adhesion.

Preferably, after the rubber coating on the surface of the steel wire is finished, the surface of the steel wire cord fabric is coated with a rubber layer. The rubber layer is coated on the surface of the steel cord fabric, which is beneficial to improving the appearance quality of the tire and avoiding uneven unevenness.

Optionally, the wirecord fabric and the outer surface of the tire are compounded together by using external pressure to produce an unvulcanized tire blank, and the tire blank is put into a vulcanizing oven to be vulcanized together to produce a finished tire.

The invention has the following beneficial effects:

the invention provides a scheme capable of performing glue coating treatment on a framework material, which is characterized in that the framework material is subjected to glue dipping or hanging treatment so as to coat glue on the surface of the framework material, and the coated framework material can be attached to a part of a tire, which needs surface enhancement, so that the surface strength of the tire is improved. When the surface of the finished tyre is subjected to external mechanical force, the rigidity of the fiber material is higher than that of the rubber, so that the damage of the tyre caused by external force can be avoided and alleviated, and the service life of the tyre is prolonged. By the arrangement, the damage of the tire caused by external force such as scratch, puncture, cut and the like can be avoided and reduced, so that the service life of the tire is prolonged.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

The features and properties of the present invention are described in further detail below with reference to examples.

Example 1

The embodiment provides a fiber impregnation system, which comprises the following raw materials in parts by weight: 70 parts of natural rubber, 5 parts of carbon black, 15 parts of white carbon black, 2 parts of resorcinol formal resin, 1 part of tackifying resin, 5 parts of chemical auxiliary agent, 0.1 part of stabilizer and 30 parts of gasoline.

The chemical auxiliary agent comprises an anti-aging agent, a vulcanizing agent, an accelerator, zinc oxide and a silane coupling agent. The stabilizer is zinc stearate soap salt. The chemical auxiliary in the embodiment comprises the following components in parts by weight: 2 parts of anti-aging agent, 2 parts of vulcanizing agent, 1.7 parts of accelerator, 1.5 parts of silane coupling agent and 5 parts of zinc oxide.

Example 2

The embodiment provides a fiber impregnation system, which comprises the following raw materials in parts by weight: 80 parts of natural rubber, 5 parts of carbon black, 15 parts of white carbon black, 2 parts of resorcinol formal resin, 3 parts of tackifying resin, 5 parts of chemical auxiliary agent, 0.1 part of stabilizer and 80 parts of gasoline.

The chemical auxiliary agent comprises an anti-aging agent, a vulcanizing agent, an accelerator, zinc oxide and a silane coupling agent. The stabilizer is zinc stearate soap salt. The chemical auxiliary in the embodiment comprises the following components in parts by weight: 3 parts of anti-aging agent, 3 parts of vulcanizing agent, 1.5 parts of accelerator, 2.5 parts of silane coupling agent and 8 parts of zinc oxide.

Example 3

The embodiment provides a fiber impregnation system, which comprises the following raw materials in parts by weight: 90 parts of natural rubber, 8 parts of carbon black, 20 parts of white carbon black, 2 parts of resorcinol formal resin, 3 parts of tackifying resin, 8 parts of chemical auxiliary agent, 0.2 part of stabilizer and 90 parts of gasoline. The chemical auxiliary agents comprise an anti-aging agent, a vulcanizing agent, an accelerator and a silane coupling agent. The stabilizer is zinc stearate soap salt.

The chemical auxiliary in the embodiment comprises the following components in parts by weight: 2.5 parts of anti-aging agent, 3 parts of vulcanizing agent, 2 parts of accelerator, 2 parts of silane coupling agent and 10 parts of zinc oxide.

Example 4

The embodiment provides a fiber impregnation system, which comprises the following raw materials in parts by weight: 100 parts of natural rubber, 10 parts of carbon black, 25 parts of white carbon black, 3 parts of resorcinol formal resin, 5 parts of tackifying resin, 10 parts of chemical auxiliary agent, 5 parts of stabilizer and 150 parts of gasoline. The chemical auxiliary agent comprises an anti-aging agent, a vulcanizing agent, an accelerator, zinc oxide and a silane coupling agent. The stabilizer is zinc stearate soap salt.

The chemical auxiliary in the embodiment comprises the following components in parts by weight: 1.5 parts of anti-aging agent, 3 parts of vulcanizing agent, 1.7 parts of accelerator, 2 parts of silane coupling agent and 7 parts of zinc oxide.

Example 5

The embodiment provides a steel wire kiss-coating system, which comprises the following raw materials in parts by weight: 70 parts of natural rubber, 5 parts of carbon black, 15 parts of white carbon black, 2 parts of resorcinol formal resin, 1 part of tackifying resin, 5 parts of chemical auxiliary agent and 0.5 part of cobalt salt.

The chemical auxiliary agent comprises an anti-aging agent, a vulcanizing agent, an accelerator, zinc oxide and a silane coupling agent. The cobalt salt is cobalt decanoate.

The chemical auxiliary in the embodiment comprises the following components in parts by weight: 2.5 parts of anti-aging agent, 2 parts of vulcanizing agent, 1.7 parts of accelerator, 2.5 parts of silane coupling agent and 8 parts of zinc oxide.

Example 6

The embodiment provides a steel wire kiss-coating system, which comprises the following raw materials in parts by weight: 90 parts of natural rubber, 5 parts of carbon black, 18 parts of white carbon black, 2 parts of resorcinol formal resin, 1 part of tackifying resin, 5 parts of chemical auxiliary agent and 0.5 part of cobalt salt;

the natural rubber is No. 3 smoked sheet rubber, and the chemical auxiliaries comprise an anti-aging agent, a vulcanizing agent, zinc oxide and a silane coupling agent. The cobalt salt is cobalt naphthenate.

The chemical auxiliary in the embodiment comprises the following components in parts by weight: 3 parts of anti-aging agent, 3 parts of vulcanizing agent, 2.5 parts of silane coupling agent and 9 parts of zinc oxide.

Example 7

The embodiment provides a steel wire kiss-coating system, which comprises the following raw materials in parts by weight: 100 parts of natural rubber, 7 parts of carbon black, 20 parts of white carbon black, 3 parts of resorcinol formal resin, 5 parts of tackifying resin, 8 parts of chemical auxiliary agent and 2 parts of cobalt salt;

the natural rubber is No. 3 smoked sheet rubber, and the chemical auxiliaries comprise an anti-aging agent, a vulcanizing agent, zinc oxide and a silane coupling agent. The cobalt salt is cobalt naphthenate.

The chemical auxiliary in the embodiment comprises the following components in parts by weight: 2 parts of anti-aging agent, 2 parts of vulcanizing agent, 1.5 parts of silane coupling agent and 10 parts of zinc oxide.

Example 8

This example provides a method of preparing the fiber dip system of example 1, the method comprising the steps of:

(1) plastic mixing: setting the rotating speed of an internal mixer to be 30rpm, adding natural rubber and butadiene rubber into the internal mixer, carrying out bolt pressing for 60 seconds, extracting the bolt for 20 seconds, then carrying out bolt pressing to 165 ℃ and discharging; standing for 4 hours to prepare plastic cement for mixing master batch;

(2) mixing master batch: setting the rotating speed of an internal mixer to be 30rpm, adding a stabilizer, plastic, zinc oxide, white carbon black and a silane coupling agent into the internal mixer, carrying out bolt extraction for 5 seconds after the bolt is pressed for 30 seconds, then carrying out bolt extraction for 20 seconds after the bolt is pressed to 135 ℃, and then carrying out discharge after the bolt is pressed to 155 ℃; standing for 8 hours to prepare master batch for one-step mixing;

(3) mixing by a one-step method: setting the rotation speed of an internal mixer to be 30rpm, adding master batch, stearic acid, carbon black and an anti-aging agent into the internal mixer, carrying out bolt extraction for 20 seconds after the bolt is pressed for 60 seconds, then carrying out bolt pressing to 155 ℃, discharging to an open mill, turning and cooling to 90 ℃, adding sulfur and an accelerating agent, thinly turning and turning for 300 seconds, and cooling the lower piece to the room temperature.

(4) And (3) soaking the rubber subjected to primary mixing in the step (3) into gasoline, stirring at the rotating speed of 20rpm, standing for one day after uniform stirring until a uniform solution is formed, and thus obtaining a fiber gum dipping system (namely a rubber material).

When the fiber framework material is impregnated, the nylon is placed in a fiber impregnation system, and is taken out and dried for 4 hours.

And compounding the dipped nylon and the outer surface of the tire together by using external pressure to produce an unvulcanized tire blank, and vulcanizing the tire blank in a vulcanizing oven to produce a finished tire.

Example 9

This example provides a method of preparing the fiber dip system of example 2, the method comprising the steps of:

(1) plastic mixing: setting the rotating speed of an internal mixer to be 55rpm, adding natural rubber and butadiene rubber into the internal mixer, carrying out bolt pressing for 60 seconds, extracting the bolt for 20 seconds, then carrying out bolt pressing to 165 ℃ and then discharging; standing for 6 hours to prepare plastic cement for mixing master batch;

(2) mixing master batch: setting the rotating speed of an internal mixer to be 55rpm, adding a stabilizer, plastic, zinc oxide, white carbon black and a silane coupling agent into the internal mixer, carrying out bolt pressing for 30 seconds, then keeping bolt extraction for 5 seconds, then carrying out bolt pressing to 135 ℃, keeping bolt extraction for 20 seconds, and then carrying out bolt pressing to 155 ℃ and discharging; standing for 10 hours to prepare master batch for one-step mixing;

(3) mixing by a one-step method: setting the rotation speed of an internal mixer to be 55rpm, adding master batch, stearic acid, carbon black and an anti-aging agent into the internal mixer, carrying out bolt extraction for 20 seconds after the bolt is pressed for 60 seconds, then carrying out bolt pressing to 155 ℃, discharging to an open mill, turning and cooling to 100 ℃, adding sulfur and an accelerating agent, thinly turning and turning for 300 seconds, and cooling the lower piece to the room temperature.

(4) And (3) soaking the rubber subjected to primary mixing in the step (3) into gasoline, stirring at the rotating speed of 55rpm, standing for one day after uniform stirring until a uniform solution is formed, and thus obtaining a fiber gum dipping system (namely a rubber material).

When the fiber framework material is impregnated, the nylon is placed in a fiber impregnation system, and is taken out and dried for 4 hours.

Compounding the dipped nylon (i.e. fiber cord fabric) and the tire sidewall of the tire by using external pressure to produce an unvulcanized tire blank, and vulcanizing the tire blank in a vulcanizing oven to produce a finished tire.

Example 10

This example provides a method of preparing the steel wire skim coating system of example 5, the method comprising the steps of:

(1) plastic mixing: setting the rotating speed of an internal mixer to be 30rpm, adding natural rubber and butadiene rubber into the internal mixer, carrying out bolt pressing for 60 seconds, extracting the bolt for 20 seconds, then carrying out bolt pressing to 165 ℃ and discharging; standing for 4 hours to prepare plastic cement for mixing master batch;

(2) mixing master batch: setting the rotating speed of an internal mixer to be 30rpm, adding cobalt salt, plastic, zinc oxide, white carbon black and a silane coupling agent into the internal mixer, carrying out bolt pressing for 30 seconds, then keeping bolt extraction for 5 seconds, carrying out bolt pressing to 135 ℃, keeping bolt extraction for 20 seconds, then carrying out bolt pressing to 155 ℃, and then discharging; standing for 8 hours to prepare master batch for one-step mixing;

(3) mixing by a one-step method: setting the rotation speed of an internal mixer to be 30rpm, adding master batch, stearic acid, carbon black and an anti-aging agent into the internal mixer, carrying out bolt extraction for 20 seconds after the bolt is pressed for 60 seconds, then carrying out bolt pressing to 155 ℃, discharging to an open mill, turning and cooling to 90 ℃, adding sulfur and an accelerating agent, thinly turning and turning for 300 seconds, and cooling the lower piece to the room temperature.

(4) And (3) after the raw materials of the steel wire rubberizing system are mixed to prepare the steel wire rubberizing system, using a calender to finish the steel wire surface rubberizing of the prepared steel wire rubberizing system through a calendering process to prepare the steel wire cord fabric. After the wirecord fabric is isolated and collected, the wirecord fabric is parked for 10 hours. The cord fabric is cut into a desired shape, and the cord fabric is applied to a portion of the tire to be reinforced by an external force.

Preferably, after the rubber coating on the surface of the steel wire is finished, the surface of the steel wire cord fabric is coated with a rubber layer. The rubber layer is coated on the surface of the steel cord fabric, which is beneficial to improving the appearance quality of the tire and avoiding uneven unevenness.

Optionally, the wirecord fabric and the tire crown of the tire are compounded together by using external pressure to produce an unvulcanized tire blank, and the tire blank is put into a vulcanizing oven to be vulcanized together to produce a finished tire.

Experimental example 1

The finished tires after the crown reinforced with steel cord prepared in example 10, the finished tires after the sidewall reinforced with fiber cord prepared in example 9, and the normal tires without reinforcement were subjected to the mine life (hard mineral) and tire strength tests. The tire strength test is carried out according to the method of GB/T4501-2016.

It should be noted that the normal tire without reinforcement refers to a conventional tire without composite steel cord or fiber cord.

Referring to table 1, it can be seen from table 1 that the service life of the finished tire with the crown reinforced with the steel cord fabric is significantly prolonged and the surface strength of the tire is higher compared to the unreinforced tire. The service life of the finished product tire after the fiber cord fabric is used for reinforcing the tire side is prolonged to a certain extent, and the surface strength of the tire is enhanced.

Table 1 tire test data table.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.