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A kind of low pressure variable high temperature resistant ethylene propylene rubber material and preparation method thereof

An ethylene-propylene rubber and high-temperature-resistant technology, which is applied in the rubber field, can solve problems such as the composition of ethylene-propylene rubber materials and mixing methods that cannot be satisfied, and achieve the effects of improving actual use efficiency, excellent performance, and improving activity

Active Publication Date: 2021-08-13
南京金三力高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem that the composition and mixing method of the existing ethylene-propylene rubber materials cannot meet the requirements of the German Volkswagen PV3330 and PV3307 standards, the present invention provides a low-pressure variable high-temperature resistant ethylene-propylene rubber material and its Preparation

Method used

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  • A kind of low pressure variable high temperature resistant ethylene propylene rubber material and preparation method thereof
  • A kind of low pressure variable high temperature resistant ethylene propylene rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A low-pressure variable high-temperature resistant ethylene-propylene rubber material of this embodiment includes the following components:

[0047] 100 parts of ethylene-propylene rubber raw rubber, 5 parts of zinc oxide, 1.2 parts of stearic acid, 2 parts of anti-aging agent 445, 6 parts of Active CHO, 55 parts of quick extruded carbon black N550, 10 parts of softening plasticizer S2550, cross-linking aid Agent N308E 1.5 parts and curing agent GF-45 6.0 parts.

[0048] According to the above mass ratio, the preparation method of the low-pressure variable high-temperature resistant ethylene-propylene rubber material is as follows:

[0049] Step 1, preparation of masterbatch rubber: prepare materials according to the formula of low-pressure variable high-temperature resistant ethylene-propylene rubber materials, and put all raw materials except cross-linking aid N308E, vulcanizing agent GF-45 and 1 / 2 amount of Active CHO into the compact In the mixing machine, the temp...

Embodiment 2

[0053] A low-pressure variable high-temperature resistant ethylene-propylene rubber material of this embodiment includes the following components:

[0054] 100 parts of ethylene propylene rubber raw rubber, 5 parts of zinc oxide, 1.2 parts of stearic acid, 2 parts of anti-aging agent 445, 8 parts of Active CHO, 50 parts of quick extruded carbon black N550, 7 parts of softening plasticizer S2550, crosslinking aid Agent N308E 1.8 parts and curing agent GF-45 7.2 parts.

[0055] According to the above mass ratio, the preparation method of the low-pressure variable high-temperature resistant ethylene-propylene rubber material is as follows:

[0056] Step 1, preparation of masterbatch rubber: prepare materials according to the formula of low-pressure variable high-temperature resistant ethylene-propylene rubber materials, and put all raw materials except cross-linking aid N308E, vulcanizing agent GF-45 and 1 / 2 amount of Active CHO into the compact In the mixing machine, the temper...

Embodiment 3

[0060] A low-pressure variable high-temperature resistant ethylene-propylene rubber material of this embodiment includes the following components:

[0061] 100 parts of ethylene propylene rubber raw rubber, 5 parts of zinc oxide, 1.2 parts of stearic acid, 2 parts of anti-aging agent 445, 4 parts of Active CHO, 45 parts of quick extruded carbon black N550, 5 parts of softening plasticizer S2550, cross-linking aid Agent N308E 2.0 parts and curing agent GF-45 8.0 parts.

[0062] According to the above mass ratio, the preparation method of the low-pressure variable high-temperature resistant ethylene-propylene rubber material is as follows:

[0063] Step 1, preparation of masterbatch rubber: prepare materials according to the formula of low-pressure variable high-temperature resistant ethylene-propylene rubber materials, and put all raw materials except cross-linking aid N308E, vulcanizing agent GF-45 and 1 / 2 amount of Active CHO into the compact In the mixing machine, the tempe...

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Abstract

The invention discloses a low-pressure variable high-temperature resistant ethylene-propylene rubber material and a preparation method thereof, belonging to the technical field of rubber. The rubber material of the present invention comprises the following components by weight: 100 parts of ethylene-propylene rubber raw rubber, 5 parts of zinc oxide, 1.2 parts of stearic acid, 2 parts of antioxidant 445, 4-8 parts of Ative CHO, and quick-pressed carbon black 45-55 parts of N550, 5-10 parts of softening plasticizer S2550, 1.5-2.0 parts of crosslinking aid N308E and 6.0-8.0 parts of vulcanizing agent GF-45. The rubber material of the present invention has excellent high temperature resistance, can have good physical properties after aging at 175°C, and has the remarkable advantage of low compression set at the same time, meeting the performance requirements of German Volkswagen PV3330 and PV3307 standards for compression set.

Description

technical field [0001] The invention belongs to the technical field of rubber, and more specifically relates to a low-pressure variable high-temperature resistant ethylene-propylene rubber material and a preparation method thereof. Background technique [0002] Ethylene-propylene rubber seals have higher and higher requirements for high-temperature resistance and low compression set performance of ethylene-propylene rubber materials. Its performance directly affects the sealing performance of rubber seals. High temperature resistant ethylene propylene rubber is often used in the cooling system of automobiles, and low compression set is one of the most critical technical indicators of rubber seals. [0003] Generally, the detection standards for ethylene-propylene rubber seals are national standard pressure change (GB / T7759) and international pressure change (ISO815). Let the sample recover for 30 minutes before measuring the compression set of the sample, while the German ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08K13/06C08K3/22C08K5/09C08K3/04C08J3/24
CPCC08J3/244C08J2323/16C08K3/04C08K3/22C08K5/09C08K13/06C08K2003/2206C08K2003/2296C08L23/16
Inventor 芮巧红吴会会朱自民
Owner 南京金三力高分子科技有限公司
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