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High-strength EPDM(ethylene-propylene-diene monomer) rubber and preparation method thereof

A technology of EPDM and EPDM, which is applied in the field of cable materials, can solve problems such as low strength and limited scope of application, and achieve high strength

Inactive Publication Date: 2016-08-17
陈斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because it does not contain crystals, the strength is very low, and the scope of application is greatly limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: the preparation of ethylene propylene rubber

[0023] Raw material weight ratio:

[0024] EPDM rubber, 90 parts; n-butyl acrylate, 5 parts; sodium hexametaphosphate, 2 parts; ammonium persulfate, 1.5 parts; mercaptopropionic acid, 0.7 parts; triethanolamine, 0.5 parts; diisopropyl peroxide Benzene, 2 parts; 2-mercaptobenzimidazole, 3 parts; Ammonium polyphosphate, 1.5 parts; Dialkyl diphenylamine and tricresyl phosphate are 0.5 parts altogether; The weight of described dialkyl diphenylamine and tricresyl phosphate The ratio of parts is 4:1.

[0025] Preparation:

[0026] Step S1, heating and pre-mixing EPDM rubber, n-butyl acrylate, sodium hexametaphosphate, ammonium persulfate, mercaptopropionic acid, triethanolamine, dialkyldiphenylamine and tricresyl phosphate at a heating temperature of 53- 57°C;

[0027] Step S2, heating dicumyl peroxide, 2-mercaptobenzimidazole and ammonium polyphosphate and the mixture in step S1 to fully mix, the heating temper...

Embodiment 2

[0029] Embodiment 2: the preparation of ethylene-propylene rubber

[0030] Raw material weight ratio:

[0031] EPDM rubber, 80 parts; n-butyl acrylate, 4 parts; sodium hexametaphosphate, 1 part; ammonium persulfate, 1 part; mercaptopropionic acid, 0.6 parts; triethanolamine, 0.4 parts; diisopropyl peroxide Benzene, 1 part; 2-mercaptobenzimidazole, 2 parts; Ammonium polyphosphate, 1 part; Dialkyl diphenylamine and tricresyl phosphate are 0.4 parts altogether; The weight of described dialkyl diphenylamine and tricresyl phosphate The ratio of parts is 3:1.

[0032] Preparation:

[0033] Step S1, heating and pre-mixing EPDM rubber, n-butyl acrylate, sodium hexametaphosphate, ammonium persulfate, mercaptopropionic acid, triethanolamine, dialkyldiphenylamine and tricresyl phosphate at a heating temperature of 53- 57°C;

[0034] Step S2, heating dicumyl peroxide, 2-mercaptobenzimidazole and ammonium polyphosphate and the mixture in step S1 to fully mix, the heating temperature is...

Embodiment 3

[0036] Embodiment 3: the preparation of ethylene-propylene rubber

[0037] Raw material weight ratio:

[0038] EPDM rubber, 100 parts; n-butyl acrylate, 6 parts; sodium hexametaphosphate, 3 parts; ammonium persulfate, 2 parts; mercaptopropionic acid, 0.8 parts; triethanolamine, 0.6 parts; diisopropyl peroxide Benzene, 3 parts; 2-mercaptobenzimidazole, 4 parts; Ammonium polyphosphate, 2 parts; Dialkyl diphenylamine and tricresyl phosphate are 0.6 parts altogether; The weight of described dialkyl diphenylamine and tricresyl phosphate The ratio of parts is 5:1.

[0039] Preparation:

[0040] Step S1, heating and pre-mixing EPDM rubber, n-butyl acrylate, sodium hexametaphosphate, ammonium persulfate, mercaptopropionic acid, triethanolamine, dialkyldiphenylamine and tricresyl phosphate at a heating temperature of 53- 57°C;

[0041] Step S2, heating dicumyl peroxide, 2-mercaptobenzimidazole and ammonium polyphosphate and the mixture in step S1 to fully mix, the heating temperatu...

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PUM

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Abstract

The invention discloses high-strength EPDM rubber and a preparation method thereof. The high-strength EPDM rubber is prepared from the following raw materials in parts by weight: 80-100 parts of EPDM rubber, 4-6 parts of n-butyl acrylate, 1-3 parts of sodium hexametaphosphate, 1-2 parts of ammonium persulfate, 0.6-0.8 part of mercaptopropionic acid, 0.4-0.6 part of triethanolamine, 1-3 parts of initiator, 2-4 parts of anti-aging agent, 1-2 parts of flame retardant and 0.4-0.6 part of dialkyl diphenylamine and tricresyl phosphate together in ratio of (3-5):1 in parts by weight. The EPDM rubber provided by the invention has high strength, which probably is related to the ratio of the dialkyl diphenylamine to the tricresyl phosphate in parts by weight, and the strength is the highest when the ratio of the dialkyl diphenylamine to the tricresyl phosphate is (3-5):1 in parts by weight.

Description

technical field [0001] The invention relates to cable materials, in particular to a high-strength EPDM rubber and a preparation method thereof. Background technique [0002] Ethylene propylene rubber is an extremely important raw material in the rubber product industry. Its production methods mainly include solution polymerization, suspension polymerization and gas phase polymerization. In recent years, the growth of the world's synthetic rubber production capacity has slowed down. Although the production and usage of ethylene-propylene rubber have increased to a certain extent, the growth rate is not large, with an average annual growth rate of about 4%. At present, the total production capacity of ethylene propylene rubber in the world is about 1.5 million tons. The total consumption in 2004 is about 900,000 tons, the total consumption in 2006 is about 1 million tons, and in 2008 is about 1.15 million tons. In 2006, the total demand in my country was about 105,000 tons, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/02C08F220/18C08K5/18C08K5/523B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08F279/02C08K5/18C08K5/523C08F220/1804
Inventor 陈斌
Owner 陈斌