Application of trans-1,4-polydiene composite rubber in rubber products

A technology of composite rubber and polydiene, which is applied in tire parts, rolling resistance optimization, transportation and packaging, etc., can solve the problems of low heat generation, no application reports, small rolling resistance, etc.

Active Publication Date: 2013-07-17
SHANDONG HUAJU POLYMER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite rubber has the characteristics of low heat generation, low rolling resistance, low heat generation, and wear resistance of TPI, and also has excellent properties such as fatigue crack growth resistance of TBIR. This patent only applies to its synthesis, structure and vulcanized rubber. Its performance has been studied and it is expected to be used in tread rubber or sidewall rubber, but there is no further report on its application in tire formulations

Method used

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  • Application of trans-1,4-polydiene composite rubber in rubber products
  • Application of trans-1,4-polydiene composite rubber in rubber products
  • Application of trans-1,4-polydiene composite rubber in rubber products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0035] Mix 95 parts of NR and 5 parts of polydiene composite rubber with different trans-1,4-structures on a two-roll mill, according to the traditional basic formula of tire tread rubber, other additives are: carbon black N220 55 parts , 3.5 parts of zinc oxide, 2 parts of stearic acid, 1.2 parts of accelerator NS, 1.2 parts of sulfur, 1.5 parts of anti-aging agent 4010, 1.5 parts of anti-aging agent RE, 5 parts of aromatic oil, and 0.2 parts of anti-scorch agent CTP. The physical and mechanical properties of the vulcanized rubber were measured after being sliced ​​and vulcanized, and are listed in Table 2.

Embodiment 5～8

[0037]Mix 90 parts of NR and 10 parts of polydiene composite rubber with different trans-1,4-structures on a two-roll mill, according to the traditional basic formula of tire tread rubber, other additives are: carbon black N220 55 parts , 3.5 parts of zinc oxide, 2 parts of stearic acid, 1.2 parts of accelerator NS, 1.2 parts of sulfur, 1.5 parts of anti-aging agent 4010, 1.5 parts of anti-aging agent RE, 5 parts of aromatic oil, and 0.2 parts of anti-scorch agent CTP. The physical and mechanical properties of the vulcanized rubber were measured after being sliced ​​and vulcanized, and are listed in Table 2.

[0038] Table 2 Properties of blended vulcanizates of polydiene composite rubber with trans-1,4-structure and NR

[0039]

[0040] It can be seen from Table 2 that the NR in the tread rubber formula is partially replaced by trans-1,4-structure polydiene composite rubber, and the 100% constant elongation, 300% constant elongation and tensile strength of the rubber are c...

Embodiment 9～11

[0044] NR, BR and trans-1,4-structure polydiene composite rubber are mixed on a double-roll mill, according to the traditional basic formula of tire sidewall rubber, other additives are: carbon black N330 50 parts, zinc oxide 5 2.5 parts of stearic acid, 0.9 parts of accelerator CZ, 1 part of microcrystalline wax, 2 parts of sulfur, 2 parts of anti-aging agent 4010, 1 part of anti-aging agent 4020, 1 part of anti-aging agent RE, 7 parts of aromatic oil, anti-scorch agent CTP 0.2 copies. The physical and mechanical properties of the vulcanized rubber were measured after being sliced ​​and vulcanized, and are listed in Table 3.

[0045] Table 3 Properties of blended vulcanizates of polydiene composite rubber with trans-1,4-structure and NR and BR

[0046]

[0047] It can be seen from Table 3 that the NR and BR in the sidewall rubber formula are partially replaced with trans-1,4-structured polydiene composite rubber, and the rubber has 100% constant elongation, 300% constant ...

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Abstract

The invention discloses a use of a trans-1,4-polydiene composite rubber, and an application formula of the trans-1,4-polydiene composite rubber. The composite rubber is composed of 10-80% by mass of trans-1,4-polyisoprene and 20-90% by mass of a trans-1,4-butadiene-isoprene copolymer, and the copolymer is composed of 0.1-99.9mol% of a butadiene unit and 0.1-99.9mol% by mole of an isoprene unit. The substitution of natural rubber and/or styrene-butadiene rubber and/or butadiene rubber in a tire surface rubber by 5-30 parts of the composite rubber obviously improves the wear resistance of a tire and reduces the rolling resistance. The substitution of natural rubber and/or butadiene rubber in the sidewall rubber of the tire by 5-50 parts of the composite rubber obviously improves the crack increasing resistance of the tire, reduces the rolling resistance and heat generation, and makes the good traction performance of the tire be maintained, so the composite rubber is especially suitable for dynamic use rubber products comprising tires, damping materials and the like, especially tire surface rubber of all-steel radial tires or high duty tires.

Description

technical field [0001] The invention belongs to the application field of polydiene rubber, in particular to the application of trans-1,4-structured polydiene composite rubber in tire products, especially all-steel radial or truck tires, and belongs to tire materials and rubber processing technology field. Background technique [0002] With the rapid development of highways and the increasing number of automobiles, as well as people's awareness of automobile safety and environmental protection, the demand for high-performance rubber materials for automobile tires, especially rubber materials with excellent dynamic mechanical properties, is also increasing. more intense. Although high trans-1,4-polyisoprene (TPI) is a crystalline plastic at room temperature, studies have shown that the crystallization of TPI can be effectively broken by vulcanization or co-vulcanization with other rubber blends to obtain Elastomer with excellent flex resistance and low rolling resistance (ZL...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L7/00C08L9/06B60C1/00
CPCY02T10/86
Inventor 王日国贺爱华黄宝琛姚薇邵华锋张萌萌
Owner SHANDONG HUAJU POLYMER MATERIALS CO LTD
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