Modified ethylene propylene diene monomer

A modified technology of EPDM rubber, which is applied in the field of rubber material processing, can solve the problems of low oxygen index of EPDM rubber, limited promotion and application, etc., and achieve excellent elongation at break, good volume resistivity, The effect of hyperoxic index

Inactive Publication Date: 2012-05-02
中特华星电缆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low oxygen index of EPDM rubber itself (the oxygen index is only 17), its promotion and application in the field of mining cables are limited.

Method used

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  • Modified ethylene propylene diene monomer
  • Modified ethylene propylene diene monomer
  • Modified ethylene propylene diene monomer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] A modified EPDM rubber, which is made from the following raw materials in parts by weight:

[0017]

[0018] Plasticizer is No. 38 cylinder oil; Described lubricant is microcrystalline paraffin; Described coupling agent is silicon

[0019] Alkane coupling agent YGO-1204; the vulcanizing agent is sulfur.

[0020] The preparation method is as follows:

[0021] Add EPDM rubber, nano-montmorillonite, nano-alumina, nano-magnesia, anti-aging agent, and plasticizer into the internal mixer according to the formula ratio, start the internal mixer, fully mix several raw materials, and wait for the compaction When the temperature of the mixing room reaches 120°C, the mixed rubber material is released from the internal mixing room, put into the open mill for masticating, filtered through the rubber filter, and then rolled, and then added with a vulcanizing agent for secondary mixing, and the production The modified EPDM rubber was obtained.

[0022] Experimental data

[0023...

example 2

[0027] A modified EPDM rubber, which is made by mixing two parts A and B.

[0028] Component A is made from the following raw materials in parts by weight:

[0029]

[0030] Plasticizer is No. 38 cylinder oil; Described lubricant is microcrystalline paraffin; Described coupling agent is silicon

[0031] Alkane coupling agent YGO-1204; the vulcanizing agent is sulfur.

[0032] Add EPDM rubber, nano-montmorillonite, nano-alumina, nano-magnesia, anti-aging agent, and plasticizer into the internal mixer according to the formula ratio, start the internal mixer, fully mix several raw materials, and wait for the compaction When the temperature of the mixing room reaches 120°C, the mixed rubber material is released from the internal mixing room, put into the open mill for masticating, filtered through the rubber filter, and then rolled, and then added with a vulcanizing agent for secondary mixing, and the production Get A component.

[0033] Component B is made from the followin...

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PUM

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Abstract

The invention provides a modified ethylene propylene diene monomer which is low in cost and excellent in performance. The modified ethylene propylene diene monomer is prepared from the following raw materials in part by weight: 100 parts of ethylene propylene diene monomer, 1 to 3 parts of age resister RD, 2 to 4 parts of zinc oxide, 8 to 12 parts of plasticizer, 4 to 6 parts of lubricating agent, 1 to 3 parts of coupling agent, 2 to 4 parts of vulcanizer, 18 to 22 parts of nano-montmorillonite, 28 to 32 parts of nano aluminum oxide, and 18 to 22 parts of nano magnesium oxide. The modified ethylene propylene diene monomer is excellent in flame retardant property, and high in tensile strength and high-temperature resistance, and can be widely applied to the field of mine cables.

Description

technical field [0001] The invention relates to the field of rubber material processing, in particular to a modified EPDM rubber and a preparation method thereof. Background technique [0002] EPDM rubber is widely used in the cable industry because of its excellent electrical properties, mechanical and physical properties and excellent processing properties. Due to the low oxygen index of EPDM rubber itself (the oxygen index is only 17), its promotion and application in the field of mining cables are limited. Therefore, improving the flame retardant oxygen index of EPDM rubber has practical significance for the application of EPDM rubber in the field of mining cables. Substituting nano-montmorillonite, nano-alumina, and nano-magnesia for calcium carbonate and clay in the formula of EPDM can fully improve the oxygen index of EPDM and solve the bottleneck of its application in the field of mining cables. Nano-montmorillonite is an excellent reinforcement and flame retardant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/22C08K3/34
Inventor 张明宇沈雯
Owner 中特华星电缆股份有限公司
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