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Composite stabilizer and stable oil-extended rubber composition

A composite stabilizer and oil-extended rubber technology, which is applied in the field of composite stabilizers, can solve the problems of poor stability, precipitation, and discoloration of hydrogenated oil, and achieve long-term stability, slow down color changes, and prevent thermal degradation.

Active Publication Date: 2007-06-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most hydrogenated oils have poor light stability, and will change color, turbidity, or even precipitate under sunlight or ultraviolet light.

Method used

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  • Composite stabilizer and stable oil-extended rubber composition
  • Composite stabilizer and stable oil-extended rubber composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0038] Embodiment 3 composite stabilizer-1

[0039] In a 100ml beaker, add 8.5g of zinc dibutyldithiophosphate, 7.0g of 2,6-di-tert-butyl-p-cresol, 8.5g of 3,5-di-tert-butyl-4-hydroxyphenyl acrylate g, 2-(2'-hydroxy-3',5'-di-tert-butyl)benzotriazole 12.0g, bis(2,2,6,6-tetramethylpiperidinyl) sebacate 12.0 g. Trinonylphenyl phosphite 6.09, benzotriazole-aldehyde-amine condensate 6.0g, heat on a heater, stir and mix with a glass rod, control the temperature at 80±5°C, and keep it for 30min. to make the material uniform , to obtain a transparent light yellow liquid.

Embodiment 4

[0040] Embodiment 4 composite stabilizer-2

[0041] In a 100ml beaker, add 2,6-di-tert-butyl-p-cresol 9.0g, 3,5-di-tert-butyl-4-hydroxyphenylisooctyl acrylate 12.0g, 2-(2'-hydroxy-3 ', 5'-di-tert-butyl) benzotriazole 18.5g, ethyl bis(2,2,6,6-tetramethylpiperazinone) 5.8g, N-triacetic acid (2,2,6, 5.7g of 6-tetramethyl-4-piperidinyl) ester, 4.2g of trinonylphenyl phosphite, 4.8g of 2,6-di(alkyldithio)thiadiazole, placed on a heater for heating , Stir and mix with a glass rod, control the temperature at 80±5°C, and keep it for 30min. to make the material uniform and obtain a transparent light yellow liquid.

Embodiment 5

[0042] Embodiment 5 composite stabilizer-3

[0043] In a 100ml beaker, add 8.0g of octyl / butyl alkylated diphenylamine, 8.2g of zinc diisooctyl dithiophosphate, 6.6g of 2,6-di-tert-butyl p-cresol, 2-(2' -Hydroxy-3',5'-di-tert-butyl)benzotriazole 7.0g, 2-hydroxy-4-n-octyloxy-benzophenone 7.0g, bis(1,2,2,6,6 - Pentamethyl-4-piperidinyl) sebacate 7.0g, triphenyl phosphite 9.0g, benzotriazole-aldehyde-amine condensate 7.2g, heat on a heater, stir and mix with a glass rod , control the temperature at 60±5°C, and maintain it for 30 min. to make the material uniform and obtain a transparent light yellow liquid.

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Abstract

This invention provides a compound stabilizing agent. Using the gross weight of the compound stabilizing agent as reference, it includes the components as following: (I) the UV-absorbents and amine-impeding light stabilizers mixed according to the weight ratio of 1:1~4:1, account 30~75% of the compound stabilizing agent; (II) the antioxidants selected from shielding phenols, amines, phenol esters, thiocarbamates, account 15~45% of the compound stabilizing agent; (III) the chelating agents of sub-phosphoric acid benzene ester, account 3~18% of the compound stabilizing agent; (IV) the metal deactivators with nitrogen heterocyclic ring, account 5~15% of the compound stabilizing agent. This invention also provides an oil-extended rubber contained the above compound stabilizing agent. Utilizing the co-effects in many kinds of additions, the compound stabilizing agent in this invention improves the light invariability and the thermal stability, decreases its total dosages in rubbers, and enhances the economical efficiency and the practicability of the oil-extended rubber.

Description

technical field [0001] The invention relates to a composite stabilizer and an oil-extended rubber composition containing the stabilizer. technical background [0002] In recent years, in order to improve the processability and lubricity of rubber, a certain amount of filler oil can be added to rubber. Due to its good compatibility, naphthenic oil is non-polluting, especially suitable for light-colored high-grade non-polluting rubber products. For example, the naphthenic filler oil produced by Xinjiang Karamay Oil Refinery is processed through low-pressure hydrogenation, solvent refining, medium-pressure hydrofining and supplemented with clay refining. The hydrogenated oil produced has light color, high naphthene content, and The glue has good compatibility and can be used to produce styrene-butadiene rubber. However, the light stability is poor, and the chroma increases rapidly during storage, transportation and use, and the SBS synthetic rubber produced by it also turns y...

Claims

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Application Information

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IPC IPC(8): C08K5/521C08L25/10C08K5/3472C08K5/3435C08K5/39
Inventor 李华李新华杨永璧
Owner CHINA PETROLEUM & CHEM CORP
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