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Ethylene-propylene-diene monomer (EPDM) flame-retardant rubber for automobile and preparation method thereof

A technology of EPDM and flame retardant glue, applied in the field of rubber and its processing, can solve the problems of poor stability of EPDM rubber, difficult process control, easy occurrence of frost, etc., achieves excellent performance, simplifies the preparation process, Avoid the effects of frosting

Inactive Publication Date: 2010-09-29
惠州市成琳橡胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional flame retardant rubber for automobiles is made of raw rubber, zinc oxide, stearic acid, various accelerators, vulcanizing agent TT, vulcanizing agent CZ, sulfur, flow agent, carbon black, naphthenic oil, flame retardant powder and other ingredients. The traditional formula is complex, with many components, long processing time, difficult process control, and the final EPDM rubber has poor stability and is prone to blooming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 56% raw rubber EP330, 9.8% carbon black, 0.56% silicon dioxide, 2.8% zinc oxide, 0.84% ​​silicon 69, 8.4% antimony trioxide, 19.6% decabromodiphenyl, 1.96 % vulcanization accelerator DCP to prepare flame retardant rubber.

[0019] The preparation method is as follows:

[0020] Put 20kg of raw rubber KEP-330, 3.5kg of carbon black N550, 0.2kg of silicon dioxide, 1kg of zinc oxide, and 0.3kg of silicon 69 into a compact mixer together, put down the pressure cover and practice for 8-10 minutes;

[0021] Then add 3kg of antimony trioxide and 7kg of decabromodiphenyl to continue compacting for 4-5 minutes;

[0022] Finally, add the vulcanization accelerator DCP and train for one minute before discharging; put the mixture out of the banbury mixer on the open mixer for mixing, thin it 3 times, and release the slices, and spread them on the cooling table to cool down.

Embodiment 2

[0024] Take 56% raw rubber EP330, 15% carbon black N550, 0.56% silicon dioxide, 4% zinc oxide, 1.5% silicon 69, 12% antimony trioxide, 30% decabromodiphenyl, 3% vulcanization accelerator DCP prepared flame retardant rubber.

[0025] The preparation method is as follows:

[0026] Put raw rubber KEP-330, carbon black N550, silicon dioxide, zinc oxide, and silicon 69 together into a compact kneader, put the pressure down and cover for 10 minutes;

[0027] Then add antimony trioxide again, and decabromodiphenyl continued to drill for 5 minutes;

[0028] Finally, add the vulcanization accelerator DCP and train for one minute before discharging; put the mixture out of the banbury mixer on the open mixer for mixing, thin it 3 times, and release the slices, and spread them on the cooling table to cool down.

[0029] The performance comparison of the flame retardant rubber prepared by the above examples and the flame retardant rubber prepared by using the traditional formula is as fo...

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PUM

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Abstract

The invention relates to the field of rubber and rubber processing, in particular to flame-retardant rubber for an automobile and a preparation process thereof. The flame-retardant rubber comprises the following components in percentage by weight: 50 to 60 percent of crude rubber EP330, 8 to 20 percent of carbon black, 0.5 to 1 percent of silicon dioxide; 2 to 5 percent of zinc oxide, 0.8 to 1.5 percent of silicon 69, 8 to 15 percent of antimony trioxide, 18 to 35 percent of decabromodiphenyl, and 1.5 to 3.5 percent of vulcanizing accelerator DCP. Compared with the conventional formula, the formula of the ethylene-propylene-diene monomer (EPDM) flame-retardant rubber reduces a plurality of accelerators, vulcanizers and flowable agents and introduces the DCP to replace all accelerators and vulcanizers so as to reduce the cost, simplify the preparation process, ensure simple and fast operation and avoid the blooming phenomenon; and the prepared flame-retardant rubber has high performance and attractive appearance.

Description

technical field [0001] The invention relates to the field of rubber and its processing, in particular to a flame-retardant rubber for automobiles and a preparation process thereof. Background technique [0002] EPDM rubber is a terpolymer of ethylene, propylene and non-conjugated dienes. It has good chemical stability and can be used in various high-grade cable materials, automotive parts, stadiums, and high-end furniture. According to different application occasions, the formula and preparation method of EPDM rubber will be different. For automobiles such as tire sides, rubber strips and inner tubes, and automotive parts, EPDM rubber is required to have good fire resistance and flame retardancy. sex. The traditional flame retardant rubber for automobiles is made of raw rubber, zinc oxide, stearic acid, various accelerators, vulcanizing agent TT, vulcanizing agent CZ, sulfur, flow agent, carbon black, naphthenic oil, flame retardant powder and other ingredients. The tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/04C08K3/36C08K3/22C08K5/03
Inventor 杨红武
Owner 惠州市成琳橡胶制品有限公司
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