Rubber antioxidant composition and its preparation method and application

A technology of rubber antioxidant and composition, which is applied in the field of rubber antioxidant composition, rubber product, and rubber product preparation, can solve the problems of pollution, insufficient environmental protection, etc. Effect of rate of change in elongation at break

Active Publication Date: 2019-08-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-aging agent composition includes aniline anti-aging agent, calcium activation auxiliary agent, dispersant and elastomer rubber, although the anti-aging agent composition can reduce color or dust pollution during use, while maintaining the excellent performance of aniline anti-aging agent The protective effect, but it is not environmentally friendly, also belongs to the pollution type anti-aging agent

Method used

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  • Rubber antioxidant composition and its preparation method and application
  • Rubber antioxidant composition and its preparation method and application
  • Rubber antioxidant composition and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0031] According to one embodiment of the present invention, the component C is bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite, that is, the antioxidant composition contains 1,3,5- Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, p-cresol-dicyclopentadiene-tert-butylated resin and bis(2,4 -di-tert-butylphenyl)pentaerythritol diphosphite.

[0032] According to a preferred embodiment of the present invention, the component C is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester, that is, the combination of anti-aging agents The product contains 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, p-cresol-dicyclopentadiene-tert-butyl resin and tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester.

[0033] According to another preferred embodiment of the present invention, the component C is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester and bis(2,4- D...

Embodiment 1-9 and comparative example 1-4

[0058] At room temperature (25° C.), mix uniformly according to each component and dosage in the examples and comparative examples listed in Table 1 to obtain antiaging agents F1-F9 corresponding to Examples 1-9, respectively, corresponding to Comparative Examples 1- 4 anti-aging agents DF1-DF4.

[0059] Table 1

[0060]

[0061] Note: 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene was purchased from Beijing Extremely Easy Chemical Co., Ltd.; p-cresol- Dicyclopentadiene-tert-butylated resin is purchased from Nantong Xinchang Chemical Co., Ltd., and is a mixture of monomer (n=1) and dimer (n=2), and its average molecular weight is 650; four [β- (3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester was purchased from Tianjin Chenguang Chemical Co., Ltd.; bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite was purchased from Beijing Extremely Easy Chemical Co., Ltd.; 2,6-di-tert-butyl-4-methylphenol was purchased from Taiwan Ousman...

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Abstract

The invention relates to the field of macromolecular synthetic materials, and specifically discloses rubber anti-aging agent compositions. The rubber anti-aging agent compositions contain compounds asshown in a formula (1) and a formula (2), and compounds as shown in a formula (3) and / or a formula (4); wherein R1-R9, R1'-R8', and R1"-R4" are each independently a branched or straight-chain hydrocarbon group selected from C1-C6; and n is an integer of 1-10. Also disclosed is a preparation method of the compositions, application of the compositions in preparation of a rubber product, a rubber product, a preparation method of the rubber product, and the prepared rubber product. The provided rubber anti-aging agents are applied to the preparation of rubbers, and a synergistic effect can be played between each substance, thereby giving the rubber product excellent heat oxidation resistance and anti-aging properties; and the anti-aging agents have a higher environmental friendliness. (The structures of the formula (1), the formula (2), the formula (3), and the formula (4) are as shown in the description.)

Description

technical field [0001] The invention belongs to the field of polymer synthetic materials, and in particular relates to a rubber antioxidant composition, a preparation method of the rubber antioxidant composition, an application of the rubber antioxidant composition in preparing rubber products, and a rubber product, A method for preparing a rubber product and the rubber product prepared thereby. Background technique [0002] As one of the three major synthetic polymer materials, rubber will inevitably age during storage, transportation, processing and use. For example, isoprene rubber is a highly unsaturated olefinic rubber, and its molecular chain contains a large number of unsaturated double bonds, which can easily react with oxygen and cause rubber aging. In order to improve the aging resistance of polymer materials such as rubber, slow down or delay the aging speed of polymer materials such as rubber, the most important method is to add anti-aging agents during material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/00C08K5/13C08K5/134C08K5/527C08L9/00C08K13/02
Inventor 卜少华吴春红王足远关敏罗俊杰张建枚
Owner CHINA PETROLEUM & CHEM CORP
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