阅读说明：本技术 一种船用低烟、无卤环保阻燃橡胶地板布及其制备方法 (Low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for ship and preparation method thereof ) 是由 汪华北 李志杰 陈金琪 于 2021-01-14 设计创作，主要内容包括：本发明公开了一种船用低烟、无卤环保阻燃橡胶地板布及其制备方法,由以下重量份的原料组成：天然胶90-120份、氧化锌3-8份、硬脂酸1-3份、聚乙二醇3-5份、抗氧剂0.5-4份、环保阻燃剂80-110份、白炭黑25-35份、陶土15-25份、硫磺1-5份、防老剂1-3份。本发明船用低烟、无卤环保阻燃橡胶地板布顾名思义具有低烟、无卤、环保、阻燃的特性,同时,由于选择了更加合理的制备工艺及特定的的工艺参数的设计,使得本发明提供的船用低烟、无卤环保阻燃橡胶地板布具有更好的硬度,强度,断裂伸长率。(The invention discloses a low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship and a preparation method thereof, wherein the rubber floor cloth comprises the following raw materials in parts by weight: 90-120 parts of natural rubber, 3-8 parts of zinc oxide, 1-3 parts of stearic acid, 3-5 parts of polyethylene glycol, 0.5-4 parts of antioxidant, 80-110 parts of environment-friendly flame retardant, 25-35 parts of white carbon black, 15-25 parts of pottery clay, 1-5 parts of sulfur and 1-3 parts of anti-aging agent. The marine low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth has the characteristics of low smoke, halogen-free, environment-friendly and flame-retardant as the name suggests, and simultaneously has better hardness, strength and elongation at break due to the selection of more reasonable preparation process and the design of specific process parameters.)

1. The low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship is characterized by comprising the following raw materials in parts by weight:

90-120 parts of natural rubber, 3-8 parts of zinc oxide, 1-3 parts of stearic acid, 3-5 parts of polyethylene glycol, 0.5-4 parts of antioxidant, 80-110 parts of environment-friendly flame retardant, 25-35 parts of white carbon black, 15-25 parts of pottery clay, 1-5 parts of sulfur and 1-3 parts of anti-aging agent.

2. The marine low-smoke, halogen-free, environment-friendly and flame-retardant rubber floor cloth according to claim 1, which is composed of the following raw materials in parts by weight:

100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of argil, 2 parts of sulfur and 1 part of anti-aging agent.

3. The marine low-smoke, halogen-free, environment-friendly and flame-retardant rubber floor cloth of claim 1, wherein the antioxidant is a mixture of antioxidant 1010 and antioxidant 168.

4. The low-smoke, halogen-free, environment-friendly and flame-retardant rubber floor cloth for a ship of claim 1, wherein the anti-aging agent of the low-smoke, halogen-free, environment-friendly and flame-retardant rubber floor cloth for a ship is any one of an anti-aging agent SP-C and an anti-aging agent RD.

5. The preparation method of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship is characterized by comprising the following steps

(1) Drying the glue: controlling the temperature of the glue drying machine at 50-60 ℃, controlling the glue drying time to be more than 48h, requiring thorough internal and external drying without a sandwich, cutting small triangular blocks for later use after the glue drying is finished, and controlling the cutting temperature to be more than or equal to 35 ℃;

(2) plasticating natural rubber: the temperature of a front roller in the double-roller plastic refining machine is 45-50 ℃, the temperature of a rear roller is 45-55 ℃, the roller spacing is 0.5-1mm, the plastic refining time is 15min, and the plastic refining machine is placed for 24-100 h after the plastic refining time is up;

(3) preparing materials: weighing 100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of pottery clay, 2 parts of sulfur and 1 part of anti-aging agent, and respectively placing for later use; wherein, the vulcanizing agent is screened by a 200-mesh screen;

(4) mixing: after the normal operation of an internal mixer is started, adding weighed natural rubber and nitrile rubber, simultaneously adding an active agent for plastication for 1min, then adding a reinforcing agent and a softening agent, mixing for 8min, finally adding a flame retardant, mixing to an internal mixing chamber at the temperature of 120 ℃ plus 125 ℃, and discharging a sizing material composition; immediately adding the sizing material composition discharged by the internal mixer into an open mill with the roller temperature of 40-50 ℃ and the roller spacing of 6-8mm for cooling, dispersing and standing;

(5) adding sulfur: the roll spacing of the open mill is 5-6mm, the temperature of the front roll and the temperature of the rear roll are both 45-50 ℃, when the temperature of the rubber compound is 50-60 ℃, sulfur is added by the roll spacing of 6-8mm, and after the sulfur is completely absorbed, a triangular bag is formed by passing through three times by the roll spacing below 1 mm; then, eight cutters with the roller spacing of about 5mm are used for uniformly pounding and refining, and then, the sheets are discharged;

(6) and (3) vulcanization: controlling the vulcanization temperature at 160-165 ℃ and the tensioning pressure at 130bar, feeding the lining cloth after vulcanization and stripping into a vulcanization drum, adding filler strips with the thickness consistent with that of the product on two sides of the vulcanized product, and then finishing the coiling operation on a coiling device.

6. The preparation method of the marine low-smoke halogen-free environment-friendly flame retardant rubber floor cloth according to claim 5, characterized in that in the step of plasticating the natural rubber, the temperature of a front roller in a double-roller plasticating machine is 48 ℃, the temperature of a rear roller in the double-roller plasticating machine is 50 ℃, the roller spacing is 0.8mm, the plasticating time is 15min, and the mixture is packed in a triangular bag and is parked for 36h after reaching the time; and adding sulfur into the rubber compound composition at the temperature of 55 ℃ by using a roller spacing of 8mm in the sulfur adding step.

Technical Field

The invention belongs to the technical field of floor cloth production, and particularly relates to low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship and a preparation method thereof.

Background

The floor cloth is a novel light floor decoration material which is very popular in the world at present, is also called as a 'light floor material', is popular at home and abroad, enters the Chinese market from the beginning of the 80 s, is generally accepted in domestic large and medium cities so far, is widely used in various places such as families, hospitals, stadiums, schools, office buildings, factories, public places, airports, railway stations, bus stations, supermarkets, businesses, family indoor passengers and the like, mainly aims at the places that most of floors are density boards, aluminum plates, cement and the like, and most of fabrics needing to be laid on the floors are floor cloth for the requirements of beauty, practicability and the like, compared with sheet floors, the floor cloth has the characteristics of light weight, easy replacement, low cost and the like, and is usually a roll of soft coiled material before being laid, so the floor cloth is also called as a coiled material floor, and is easy to clean, has good compression resistance, tensile resistance, fire resistance, water resistance, skid resistance, heat insulation, durability, sound absorption, shock absorption, acid resistance, alkali resistance, wear resistance, bacteria resistance and other properties.

The marine floor cloth is an important application in the wide application of the floor cloth, and the marine floor cloth is characterized in that the marine floor cloth needs to face more harsh environmental characteristics due to long-time operation on the sea or application environment, and is more troublesome to replace compared with a common operation scene, so that the technical improvement and innovation of the existing floor cloth are needed to avoid the higher technical index requirement on the marine floor cloth.

Disclosure of Invention

The low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship has the advantages of good flame retardant property, friction resistance, low smoke, cigarette burning resistance, low temperature resistance, long service life, environmental friendliness, harmlessness and simple preparation process, and can be applied to trains of motor trains to meet the domestic requirements of motor train technical equipment.

In order to achieve the above purpose, the invention provides the following technical scheme:

a low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship is composed of the following raw materials in parts by weight:

90-120 parts of natural rubber, 3-8 parts of zinc oxide, 1-3 parts of stearic acid, 3-5 parts of polyethylene glycol, 0.5-4 parts of antioxidant, 80-110 parts of environment-friendly flame retardant, 25-35 parts of white carbon black, 15-25 parts of pottery clay, 1-5 parts of sulfur and 1-3 parts of anti-aging agent.

Preferably, the marine low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth is characterized by comprising the following raw materials in parts by weight:

100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of argil, 2 parts of sulfur and 1 part of anti-aging agent.

Preferably, the antioxidant is a mixture of antioxidant 1010 and antioxidant 168.

Preferably, the anti-aging agent of the marine low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth is any one of an anti-aging agent SP-C and an anti-aging agent RD.

The preparation method of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship is characterized by comprising the following steps

(1) Drying the glue: controlling the temperature of the glue drying machine at 50-60 ℃, controlling the glue drying time to be more than 48h, requiring thorough internal and external drying without a sandwich, cutting small triangular blocks for later use after the glue drying is finished, and controlling the cutting temperature to be more than or equal to 35 ℃;

(2) plasticating natural rubber: the temperature of a front roller in the double-roller plastic refining machine is 45-50 ℃, the temperature of a rear roller is 45-55 ℃, the roller spacing is 0.5-1mm, the plastic refining time is 15min, and the plastic refining machine is placed for 24-100 h after the plastic refining time is up;

(3) preparing materials: weighing 100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of pottery clay, 2 parts of sulfur and 1 part of anti-aging agent, and respectively placing for later use; wherein, the vulcanizing agent is screened by a 200-mesh screen;

(4) mixing: after the normal operation of an internal mixer is started, adding weighed natural rubber and nitrile rubber, simultaneously adding an active agent for plastication for 1min, then adding a reinforcing agent and a softening agent, mixing for 8min, finally adding a flame retardant, mixing to an internal mixing chamber at the temperature of 120 ℃ plus 125 ℃, and discharging a sizing material composition; immediately adding the sizing material composition discharged by the internal mixer into an open mill with the roller temperature of 40-50 ℃ and the roller spacing of 6-8mm for cooling, dispersing and standing;

(5) adding sulfur: the roll spacing of the open mill is 5-6mm, the temperature of the front roll and the temperature of the rear roll are both 45-50 ℃, when the temperature of the rubber compound is 50-60 ℃, sulfur is added by the roll spacing of 6-8mm, and after the sulfur is completely absorbed, a triangular bag is formed by passing through three times by the roll spacing below 1 mm; then, eight cutters with the roller spacing of about 5mm are used for uniformly pounding and refining, and then, the sheets are discharged;

(6) and (3) vulcanization: controlling the vulcanization temperature at 160-165 ℃ and the tensioning pressure at 130bar, feeding the lining cloth after vulcanization and stripping into a vulcanization drum, adding filler strips with the thickness consistent with that of the product on two sides of the vulcanized product, and then finishing the coiling operation on a coiling device.

Preferably, in the step of plasticating the natural rubber, the temperature of a front roller in a double-roller plasticating machine is 48 ℃, the temperature of a rear roller is 50 ℃, the roller spacing is 0.8mm, the plastication time is 15min, and a triangular bag is placed for 36h after the plastication time is reached; and adding sulfur into the rubber compound composition at the temperature of 55 ℃ by using a roller spacing of 8mm in the sulfur adding step.

Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:

the marine low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth has the characteristics of low smoke, halogen-free, environment-friendly and flame-retardant as the name suggests, and simultaneously has better hardness, strength and elongation at break due to the selection of more reasonable preparation process and the design of specific process parameters.

On the other hand, the preparation process of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship is simple, is easy to master and is easy to realize industrial production, and the floor cloth prepared by the invention has good low-temperature resistance and can be suitable for the ship to use under various environmental temperatures.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Example 1

A low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship is composed of the following raw materials in parts by weight:

100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 10101 parts of antioxidant, 1682 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of argil, 2 parts of sulfur and 1.5 parts of antioxidant SP-C.

The preparation method of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship comprises the following steps

(1) Drying the glue: controlling the temperature of the glue drying machine at 50-60 ℃, controlling the glue drying time to be more than 48h, requiring thorough internal and external drying without a sandwich, cutting small triangular blocks for later use after the glue drying is finished, and controlling the cutting temperature to be more than or equal to 35 ℃;

(2) plasticating natural rubber: the temperature of a front roller in the double-roller plastic refining machine is 48 ℃, the temperature of a rear roller is 50 ℃, the roller spacing is 0.8mm, the plastic refining time is 15min, and a triangular bag is placed for 36h after the plastic refining time is reached;

(3) preparing materials: weighing 100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of pottery clay, 2 parts of sulfur and 1 part of anti-aging agent, and respectively placing for later use; wherein, the vulcanizing agent is screened by a 200-mesh screen;

(4) mixing: after the normal operation of an internal mixer is started, adding weighed natural rubber and nitrile rubber, simultaneously adding an active agent for plastication for 1min, then adding a reinforcing agent and a softening agent, mixing for 8min, finally adding a flame retardant, mixing to an internal mixing chamber at the temperature of 120 ℃ plus 125 ℃, and discharging a sizing material composition; immediately adding the sizing material composition discharged by the internal mixer into an open mill with the roller temperature of 40-50 ℃ and the roller spacing of 8mm for cooling, dispersing and standing;

(5) adding sulfur: the roll spacing of the open mill is 5-6mm, the temperature of the front roll and the temperature of the rear roll are both 45-50 ℃, when the temperature of the rubber compound is 55 ℃, sulfur is added by using the roll spacing of 8mm, and after the sulfur is completely absorbed, triangular packaging is performed by using the roll spacing below 1mm in a thin pass three-pass mode; then, eight cutters with the roller spacing of about 5mm are used for uniformly pounding and refining, and then, the sheets are discharged;

(6) and (3) vulcanization: controlling the vulcanization temperature at 160-165 ℃ and the tensioning pressure at 130bar, feeding the lining cloth after vulcanization and stripping into a vulcanization drum, adding filler strips with the thickness consistent with that of the product on two sides of the vulcanized product, and then finishing the coiling operation on a coiling device.

Example 2

A low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship is composed of the following raw materials in parts by weight:

100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 10101 parts of antioxidant, 1682 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of argil, 2 parts of sulfur and 1.5 parts of antioxidant SP-C.

The preparation method of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship comprises the following steps

(1) Drying the glue: controlling the temperature of the glue drying machine at 50-60 ℃, controlling the glue drying time to be more than 48h, requiring thorough internal and external drying without a sandwich, cutting small triangular blocks for later use after the glue drying is finished, and controlling the cutting temperature to be more than or equal to 35 ℃;

(2) plasticating natural rubber: the temperature of a front roller in the double-roller plastic refining machine is 48 ℃, the temperature of a rear roller is 50 ℃, the roller spacing is 0.8mm, the plastic refining time is 15min, and a triangular bag is placed for 36h after the plastic refining time is reached;

(3) preparing materials: weighing 100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of pottery clay, 2 parts of sulfur and 1 part of anti-aging agent, and respectively placing for later use; wherein, the vulcanizing agent is screened by a 200-mesh screen;

(4) mixing: after the normal operation of an internal mixer is started, adding weighed natural rubber and nitrile rubber, simultaneously adding an active agent for plastication for 1min, then adding a reinforcing agent and a softening agent, mixing for 8min, finally adding a flame retardant, mixing to an internal mixing chamber at the temperature of 120 ℃ plus 125 ℃, and discharging a sizing material composition; immediately adding the sizing material composition discharged by the internal mixer into an open mill with the roller temperature of 40-50 ℃ and the roller spacing of 8mm for cooling, dispersing and standing;

(5) adding sulfur: the roll spacing of the open mill is 5-6mm, the temperature of the front roll and the temperature of the rear roll are both 45-50 ℃, when the temperature of the rubber compound is 50 ℃, sulfur is added by using the roll spacing of 8mm, and after the sulfur is completely absorbed, triangular packaging is performed by using the roll spacing below 1mm in a thin pass three-pass mode; then, eight cutters with the roller spacing of about 5mm are used for uniformly pounding and refining, and then, the sheets are discharged;

(6) and (3) vulcanization: controlling the vulcanization temperature at 160-165 ℃ and the tensioning pressure at 130bar, feeding the lining cloth after vulcanization and stripping into a vulcanization drum, adding filler strips with the thickness consistent with that of the product on two sides of the vulcanized product, and then finishing the coiling operation on a coiling device.

Example 3

A low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship is composed of the following raw materials in parts by weight:

100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 10101 parts of antioxidant, 1682 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of argil, 2 parts of sulfur and 1.5 parts of antioxidant SP-C.

The preparation method of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship comprises the following steps

(1) Drying the glue: controlling the temperature of the glue drying machine at 50-60 ℃, controlling the glue drying time to be more than 48h, requiring thorough internal and external drying without a sandwich, cutting small triangular blocks for later use after the glue drying is finished, and controlling the cutting temperature to be more than or equal to 35 ℃;

(2) plasticating natural rubber: the temperature of a front roller in the double-roller plastic refining machine is 48 ℃, the temperature of a rear roller is 50 ℃, the roller spacing is 0.8mm, the plastic refining time is 15min, and a triangular bag is placed for 36h after the plastic refining time is reached;

(3) preparing materials: weighing 100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of pottery clay, 2 parts of sulfur and 1 part of anti-aging agent, and respectively placing for later use; wherein, the vulcanizing agent is screened by a 200-mesh screen;

(4) mixing: after the normal operation of an internal mixer is started, adding weighed natural rubber and nitrile rubber, simultaneously adding an active agent for plastication for 1min, then adding a reinforcing agent and a softening agent, mixing for 8min, finally adding a flame retardant, mixing to an internal mixing chamber at the temperature of 120 ℃ plus 125 ℃, and discharging a sizing material composition; immediately adding the sizing material composition discharged by the internal mixer into an open mill with the roller temperature of 40-50 ℃ and the roller spacing of 8mm for cooling, dispersing and standing;

(5) adding sulfur: the roll spacing of the open mill is 5-6mm, the temperature of the front roll and the temperature of the rear roll are both 45-50 ℃, when the temperature of the rubber compound is 55 ℃, sulfur is added by using the roll spacing of 6mm, and after the sulfur is completely absorbed, triangular packaging is performed by using the roll spacing below 1mm in a thin pass three-pass mode; then, eight cutters with the roller spacing of about 5mm are used for uniformly pounding and refining, and then, the sheets are discharged;

(6) and (3) vulcanization: controlling the vulcanization temperature at 160-165 ℃ and the tensioning pressure at 130bar, feeding the lining cloth after vulcanization and stripping into a vulcanization drum, adding filler strips with the thickness consistent with that of the product on two sides of the vulcanized product, and then finishing the coiling operation on a coiling device.

Example 4

A low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship is composed of the following raw materials in parts by weight:

100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 10101 parts of antioxidant, 1682 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of argil, 2 parts of sulfur and 1.5 parts of antioxidant SP-C.

The preparation method of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship comprises the following steps

(1) Drying the glue: controlling the temperature of the glue drying machine at 50-60 ℃, controlling the glue drying time to be more than 48h, requiring thorough internal and external drying without a sandwich, cutting small triangular blocks for later use after the glue drying is finished, and controlling the cutting temperature to be more than or equal to 35 ℃;

(2) plasticating natural rubber: the temperature of a front roller in the double-roller plastic refining machine is 48 ℃, the temperature of a rear roller is 50 ℃, the roller spacing is 0.5mm, the plastic refining time is 15min, and a triangular bag is placed for 36h after the plastic refining time is reached;

(3) preparing materials: weighing 100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of pottery clay, 2 parts of sulfur and 1 part of anti-aging agent, and respectively placing for later use; wherein, the vulcanizing agent is screened by a 200-mesh screen;

(4) mixing: after the normal operation of an internal mixer is started, adding weighed natural rubber and nitrile rubber, simultaneously adding an active agent for plastication for 1min, then adding a reinforcing agent and a softening agent, mixing for 8min, finally adding a flame retardant, mixing to an internal mixing chamber at the temperature of 120 ℃ plus 125 ℃, and discharging a sizing material composition; immediately adding the sizing material composition discharged by the internal mixer into an open mill with the roller temperature of 40-50 ℃ and the roller spacing of 8mm for cooling, dispersing and standing;

(5) adding sulfur: the roll spacing of the open mill is 5-6mm, the temperature of the front roll and the temperature of the rear roll are both 45-50 ℃, when the temperature of the rubber compound is 55 ℃, sulfur is added by using the roll spacing of 8mm, and after the sulfur is completely absorbed, triangular packaging is performed by using the roll spacing below 1mm in a thin pass three-pass mode; then, eight cutters with the roller spacing of about 5mm are used for uniformly pounding and refining, and then, the sheets are discharged;

(6) and (3) vulcanization: controlling the vulcanization temperature at 160-165 ℃ and the tensioning pressure at 130bar, feeding the lining cloth after vulcanization and stripping into a vulcanization drum, adding filler strips with the thickness consistent with that of the product on two sides of the vulcanized product, and then finishing the coiling operation on a coiling device.

Example 5

A low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship is composed of the following raw materials in parts by weight:

100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 10101 parts of antioxidant, 1682 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of argil, 2 parts of sulfur and 1.5 parts of antioxidant SP-C.

The preparation method of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship comprises the following steps

(1) Drying the glue: controlling the temperature of the glue drying machine at 50-60 ℃, controlling the glue drying time to be more than 48h, requiring thorough internal and external drying without a sandwich, cutting small triangular blocks for later use after the glue drying is finished, and controlling the cutting temperature to be more than or equal to 35 ℃;

(2) plasticating natural rubber: the temperature of a front roller in the double-roller plastic refining machine is 48 ℃, the temperature of a rear roller is 50 ℃, the roller spacing is 0.8mm, the plastic refining time is 15min, and the plastic refining time is up to 80h after the plastic refining time is up;

(3) preparing materials: weighing 100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of pottery clay, 2 parts of sulfur and 1 part of anti-aging agent, and respectively placing for later use; wherein, the vulcanizing agent is screened by a 200-mesh screen;

(4) mixing: after the normal operation of an internal mixer is started, adding weighed natural rubber and nitrile rubber, simultaneously adding an active agent for plastication for 1min, then adding a reinforcing agent and a softening agent, mixing for 8min, finally adding a flame retardant, mixing to an internal mixing chamber at the temperature of 120 ℃ plus 125 ℃, and discharging a sizing material composition; immediately adding the sizing material composition discharged by the internal mixer into an open mill with the roller temperature of 40-50 ℃ and the roller spacing of 8mm for cooling, dispersing and standing;

(5) adding sulfur: the roll spacing of the open mill is 5-6mm, the temperature of the front roll and the temperature of the rear roll are both 45-50 ℃, when the temperature of the rubber compound is 55 ℃, sulfur is added by using the roll spacing of 8mm, and after the sulfur is completely absorbed, triangular packaging is performed by using the roll spacing below 1mm in a thin pass three-pass mode; then, eight cutters with the roller spacing of about 5mm are used for uniformly pounding and refining, and then, the sheets are discharged;

(6) and (3) vulcanization: controlling the vulcanization temperature at 160-165 ℃ and the tensioning pressure at 130bar, feeding the lining cloth after vulcanization and stripping into a vulcanization drum, adding filler strips with the thickness consistent with that of the product on two sides of the vulcanized product, and then finishing the coiling operation on a coiling device.

Example 6

A low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for a ship is composed of the following raw materials in parts by weight:

100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 10101 parts of antioxidant, 1682 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of argil, 2 parts of sulfur and 1.5 parts of antioxidant SP-C.

The preparation method of the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship comprises the following steps

(1) Drying the glue: controlling the temperature of the glue drying machine at 50-60 ℃, controlling the glue drying time to be more than 48h, requiring thorough internal and external drying without a sandwich, cutting small triangular blocks for later use after the glue drying is finished, and controlling the cutting temperature to be more than or equal to 35 ℃;

(2) plasticating natural rubber: the temperature of a front roller in the double-roller plastic refining machine is 48 ℃, the temperature of a rear roller is 50 ℃, the roller spacing is 0.8mm, the plastic refining time is 15min, and a triangular bag is placed for 36h after the plastic refining time is reached;

(3) preparing materials: weighing 100 parts of natural rubber, 5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of polyethylene glycol, 3 parts of antioxidant, 100 parts of environment-friendly flame retardant, 30 parts of white carbon black, 20 parts of pottery clay, 2 parts of sulfur and 1 part of anti-aging agent, and respectively placing for later use; wherein, the vulcanizing agent is screened by a 200-mesh screen;

(4) mixing: after the normal operation of an internal mixer is started, adding weighed natural rubber and nitrile rubber, simultaneously adding an active agent for plastication for 1min, then adding a reinforcing agent and a softening agent, mixing for 8min, finally adding a flame retardant, mixing to an internal mixing chamber at the temperature of 120 ℃ plus 125 ℃, and discharging a sizing material composition; immediately adding the sizing material composition discharged by the internal mixer into an open mill with the roller temperature of 40-50 ℃ and the roller spacing of 6mm for cooling, dispersing and standing;

(5) adding sulfur: the roll spacing of the open mill is 5-6mm, the temperature of the front roll and the temperature of the rear roll are both 45-50 ℃, when the temperature of the rubber compound is 55 ℃, sulfur is added by using the roll spacing of 8mm, and after the sulfur is completely absorbed, triangular packaging is performed by using the roll spacing below 1mm in a thin pass three-pass mode; then, eight cutters with the roller spacing of about 5mm are used for uniformly pounding and refining, and then, the sheets are discharged;

(6) and (3) vulcanization: controlling the vulcanization temperature at 160-165 ℃ and the tensioning pressure at 130bar, feeding the lining cloth after vulcanization and stripping into a vulcanization drum, adding filler strips with the thickness consistent with that of the product on two sides of the vulcanized product, and then finishing the coiling operation on a coiling device.

Evaluation test of Effect

In order to verify the performance of the marine low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth provided by the invention, the floor cloth prepared in the embodiment 1-6 is tested, and the test parameters and the test reference standard are as follows:

shore A hardness is more than or equal to 85: GB/T531.1-2008, is not less than 85 qualified;

tensile strength and elongation at break: GB/T1040.1-2006, the tensile strength is more than or equal to 5 percent and the elongation at break is more than or equal to 50 percent;

cold resistance (-20 ℃): TB/T3138-2006, no crack is qualified;

surface cigarette burning resistance: GB/T17657 and 2013, the grade 1-3 is qualified;

smoke density: GB/T8323.2-2008, is not more than 200 qualified;

the performance test results of the floorcloth prepared from the novel composite material provided by the invention are shown in table 1:

TABLE 1 Performance test chart of the marine low-smoke, halogen-free, environment-friendly and flame-retardant rubber floor prepared by the invention

As can be seen from the experimental data in the table 1, the low-smoke halogen-free environment-friendly flame-retardant rubber floor cloth for the ship provided by the invention has the advantages that the Shore hardness is 85-95A, the tensile strength is 7.8-9.3 MPa, the elongation at break is 68% -80%, the smoke density is 65-68, the low-temperature resistance is good, no crack occurs at the temperature of-20 ℃, the flame-retardant performance is good, and the flame-retardant rubber floor cloth is environment-friendly and harmless.

In addition, it can be noted that although the formulations of examples 1 and 6 are the same as those of examples 2, 3, 4 and 5, the rubber floor cloth prepared by the method has more excellent hardness and tensile strength and better elongation at break due to more precisely controlled process parameters. The overall performance is better.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.