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Rubber composition, processing method and application

A rubber composition and rubber technology, applied in the field of rubber, can solve the problems that performance defects have not been significantly improved, achieve good compression set resistance, improve aging resistance, and reduce negative effects

Active Publication Date: 2022-05-24
HANGZHOU XINGLU TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inherent performance defects of each type of rubber have not been significantly improved, so there is still a need and room for further improvement in the comprehensive performance of rubber products that use the two together.

Method used

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  • Rubber composition, processing method and application
  • Rubber composition, processing method and application
  • Rubber composition, processing method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4 and comparative example 1 and 2

[0124] The formula components of the rubber compositions of Examples 1 to 4 and Comparative Examples 1 and 2 are shown in Table 1: (with respect to every 100 parts by weight of the rubber matrix, the parts by weight of the used components are listed)

[0125] Table 1

[0126] component Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Example 4 Polybutadiene rubber number PBR-1 PBR-1 PBR-1 PBR-1 PBR-1 PBR-1 Amount of polybutadiene rubber 70 70 70 70 70 70 Ethylene propylene rubber number EPDM-1 EPDM-1 EPDM-1 EPDM-3 Amount of ethylene propylene rubber 30 25 15 5 Branched polyethylene number PER-8 PER-8 PER-8 PER-8 Amount of branched polyethylene 5 15 25 30 natural rubber 30 Zinc oxide 5 5 5 5 5 5 Stearic acid 2 2 2 2 2 2 Anti-aging agent MB 2 2 2 2 2 2 Anti-aging agent RD 2 2 2 2 2 2 ...

Embodiment 5～11 and comparative example 3 and 4

[0137] The formula components of the rubber compositions of Examples 4 to 11 and Comparative Examples 3 and 4 are shown in Table 3: (with respect to every 100 parts by weight of the rubber matrix, the parts by weight of the used components are listed)

[0138] table 3

[0139]

[0140] The formulations of Examples 5 to 11 and Comparative Examples 3 and 4 were processed according to the following method: put the rubber matrix into an internal mixer for pre-pressing and mixing for 90 seconds, then add zinc oxide, stearic acid and anti-aging agent and mix for 1 minute, Then add carbon black and paraffin oil, mix for 2 minutes, then add DCP and TAIC, mix for 2 minutes, and then remove the rubber; thinly pass the mixed rubber on an open mill with a roll temperature of 60 °C, then unload it, and park for 20 hours ; Test after 16 hours of vulcanization.

[0141] The test results of Examples 5 to 11 and Comparative Examples 3 and 4 are shown in Table 4:

[0142] Table 4

[0143]...

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Abstract

The invention discloses a rubber composition, a processing method and an application thereof. The rubber composition includes a rubber matrix and a compounding component. In parts by weight, every 100 parts of the rubber matrix contains 10 to 85 parts of polybutadiene rubber, 5 to 85 parts of polybutadiene rubber. 90 parts of branched polyethylene, 0-70 parts of ethylene-propylene rubber; wherein, the degree of branching of the branched polyethylene is not less than 50 branches / 1000 carbons; the compounding components include a vulcanization system. The rubber composition provided by the invention has good aging resistance, mechanical properties and wear resistance.

Description

technical field [0001] The invention belongs to the field of rubber, specifically relates to a rubber composition and a processing method thereof, and also relates to the application of the rubber composition. [0002] technical background [0003] Polybutadiene rubber is a general term for a general-purpose synthetic rubber synthesized with butadiene as a monomer and using different catalysts and polymerization methods. It occupies an important position in the field of synthetic rubber and is currently the second largest in the world after styrene-butadiene rubber. Two general-purpose synthetic rubbers. According to the microstructure of the polymer, polybutadiene rubber can be divided into high cis polybutadiene rubber (cis-1,4 structure more than 90%), low cis polybutadiene rubber (cis-1, 4 structure 35% to 40%, referred to as LCBR), medium vinyl polybutadiene rubber (1,2 structure 35% to 65%), high vinyl polybutadiene rubber (1,2 structure more than 65%) and High trans ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/00C08L23/16C08L23/06
CPCC08L9/00C08L23/06C08L2205/025C08L2205/035C08L23/16B29C35/02B65G15/34C08K3/06C08K3/22C08K5/14C08K13/02
Inventor 不公告发明人
Owner HANGZHOU XINGLU TECH CO LTD
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