Environment-friendly aging-resistant nitrile rubber and preparation method thereof

A nitrile rubber, anti-aging technology, applied in the field of environment-friendly anti-aging nitrile rubber and its preparation, can solve the problems of harming the human body, polluting the environment, etc., and achieve the effect of good thermal stability

Inactive Publication Date: 2018-05-29
SHENYANG SAIYA RUBBER PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bis (2-ethylhexyl) phthalate (DOP) is used as a plasticizer commonly used in nitrile rubber, which shows good plasticizing effect and good cold resistance, but has the disadvantages of polluting the environment and harming the human body. Therefore, it is very necessary to develop a kind of nitrile rubber with good aging resistance prepared by adopting nontoxic plasticizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An environmentally friendly anti-aging nitrile rubber prepared from the following parts by weight of raw materials: 100-150 parts of nitrile rubber (50% by mass of acrylonitrile), 30 parts of white carbon black, 60 parts of carbon black, 8 parts of ZnO, 12 parts of stearic acid, 3 parts of white ointment, 16 parts of plasticizer TP-90B, 3 parts of accelerator TT, and 264 parts of antioxidant.

[0022] The preparation method, the steps are as follows:

[0023] (1) Mixing: weigh the raw materials in parts by weight, load all the raw materials into the internal mixer for mixing, the rotor speed is 100-150r / min, the time is 15-35min; the mixture is loaded into the open mill The temperature of the front roll of the open mill is 50-60°C, the temperature of the back roll is 40-50°C, the roller speed ratio is 1:1-1.5, and the debinding temperature is 50-60°C. glue;

[0024] (2) Vulcanization: Vulcanize the rubber compound obtained in the above step (1) on a flat vulcanizer at a vulc...

Embodiment 2

[0026] An environmentally friendly anti-aging nitrile rubber prepared from the following parts by weight of raw materials: 135 parts of nitrile rubber (50% by mass of acrylonitrile), 30 parts of white carbon black, 50 parts of carbon black, zinc oxide 5 parts, 9 parts of stearic acid, 3 parts of white ointment, 18 parts of plasticizer TP-90B, 5 parts of accelerator DM and 2462 parts of antioxidant.

[0027] The preparation method, the steps are as follows:

[0028] (1) Mixing: weigh the raw materials in parts by weight, load all the raw materials into the internal mixer for mixing, the rotor speed is 100-150r / min, the time is 15-35min; the mixture is loaded into the open mill The temperature of the front roll of the open mill is 50-60°C, the temperature of the back roll is 40-50°C, the roller speed ratio is 1:1-1.5, and the debinding temperature is 50-60°C. glue;

[0029] (2) Vulcanization: Vulcanize the rubber compound obtained in the above step (1) on a flat vulcanizer at a vulca...

Embodiment 3

[0031] An environmentally friendly anti-aging nitrile rubber prepared from the following parts by weight of raw materials: 125 parts of nitrile rubber (50% acrylonitrile mass fraction), 35 parts of white carbon black, 55 parts of carbon black, zinc oxide 5 parts, 9 parts of stearic acid, 2 parts of white ointment, 20 parts of plasticizer TP-90B, 2 parts of accelerator DM, 3 parts of accelerator TT, and 246 3 parts of antioxidant.

[0032] The preparation method, the steps are as follows:

[0033] (1) Mixing: weigh the raw materials in parts by weight, load all the raw materials into the internal mixer for mixing, the rotor speed is 100-150r / min, the time is 15-35min; the mixture is loaded into the open mill The temperature of the front roll of the open mill is 50-60°C, the temperature of the back roll is 40-50°C, the roller speed ratio is 1:1-1.5, and the debinding temperature is 50-60°C. glue;

[0034] (2) Vulcanization: Vulcanize the rubber compound obtained in the above step (1)...

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Abstract

The invention belongs to the technical field of nitrile rubber materials and relates to environment-friendly aging-resistant nitrile rubber and a preparation method thereof. The environment-friendly aging-resistant nitrile rubber is made from the following raw materials in parts by weight: 100 to 155 parts of nitrile rubber, 70 to 95 parts of white carbon black, 3 to 11 parts of zinc oxide, 5 to 15 parts of stearic acid, 20 to 45 parts of a plasticizer, 2 to 6 parts of white factice, 1 to 5 parts of an accelerant and 1 to 5 parts of an anti-aging agent. The environment-friendly aging-resistantnitrile rubber has the advantages of good thermal stability, environmental friendliness and no toxicity, and the like. The preparation method is simple in operation.

Description

Technical field [0001] The invention belongs to the technical field of nitrile rubber materials, and relates to an environmentally friendly aging-resistant nitrile rubber and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people are paying more and more attention to environmental protection, and more requirements are put forward for the environmental protection and non-toxicity of daily necessities. The National Cancer Institute (NCI) and the Food and Drug Administration (FDA) put forward The plasticizer DOP may cause cancer. The European Union and the United States prohibit the use of six phthalate plasticizers including DOP in toys and supplies for children under 3 years old. However, the development and application of environmentally friendly non-toxic plasticizers has attracted widespread attention. At present, the aging resistance of nitrile rubber cannot meet the increasing requirements for aging resistance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L71/00C08K13/02C08K5/00
CPCC08L9/02C08L2201/08C08L2205/03C08L91/06C08L71/00C08K13/02C08K5/0016
Inventor 刘梦菲
Owner SHENYANG SAIYA RUBBER PRODS
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