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Antioxidant composition and its preparation method, styrene-based thermoplastic elastomer and its preparation method

An antioxidant composition and styrene-based technology, which are applied in the field of styrene-based thermoplastic elastomers and their preparation, can solve the problems of environmental pollution, cannot significantly improve the aging resistance of styrene-based thermoplastic elastomers, etc. The effect of yellowing resistance

Active Publication Date: 2014-04-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problem that the existing anti-aging agents used for styrene-based thermoplastic elastomers will pollute the environment or cannot significantly improve the aging resistance and yellowing resistance of styrene-based thermoplastic elastomers, and provide an environmentally friendly Antiaging agent composition and preparation method thereof, styrene-based thermoplastic elastomer comprising the antiaging agent composition and preparation method thereof

Method used

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  • Antioxidant composition and its preparation method, styrene-based thermoplastic elastomer and its preparation method

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preparation example Construction

[0027] The present invention also provides a preparation method of anti-aging agent composition, the method comprises n-octadecyl alcohol ester of β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, tris(2, 4-di-tert-butylphenyl) phosphite and dilauryl dithiodipropionate mixed.

[0028] In order to make up the various substances in the anti-aging agent composition to be fully and uniformly mixed, and to facilitate addition and use, n-octadecyl alcohol of β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate The process of mixing ester, tris (2,4-di-tert-butylphenyl) phosphite and dilauryl dithiodipropionate is preferably carried out in the presence of an organic solvent, so that each of the antioxidant compositions The substance is dissolved in an organic solvent to prepare an organic solution of the antioxidant composition. In order to obtain the antiaging agent composition product, the method may further include drying the organic solution of the antiaging agent composition.

[0...

Embodiment 1

[0043] This example is used to illustrate the preparation method of the antioxidant composition of the present invention.

[0044] At 40°C, 20 g of n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 60 g of dilauryl dithiodipropionate, three (2,4 - 30 g of di-tert-butylphenyl) phosphite, dissolved in 110 g of hexane and mixed for 10 minutes until uniform, to obtain anti-aging agent composition X1 dissolved in hexane.

Embodiment 2

[0046] This example is used to illustrate the preparation method of the antioxidant composition of the present invention.

[0047] At 50°C, add 40 g of n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 40 g of dilauryl dithiodipropionate, three (2,4 - 10 g of di-tert-butylphenyl) phosphite, dissolved in 270 g of cyclohexane and mixed for 7 minutes until uniform, to obtain anti-aging agent composition X2 dissolved in cyclohexane.

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Abstract

The invention discloses an antioxidant composition, wherein, wherein the antioxidant composition comprises beta-(3,5-di-tert-butyl-4-hydroxy phenyl) n-octadecylpropionate, tris(2,4-di-tert-butylphenyl)phosphate and dilauryl dithiodipropionate, and the invention also provides a preparation method. The invention also provides a styrene-based thermoplastic elastomer, wherein the styrene-based thermoplastic elastomer contains a styrene-based segmented copolymer and the antioxidant composition, the antioxidant composition is the antioxidant composition provided by the invention, and the invention also provides a preparation method of the styrene-based thermoplastic elastomer. The antioxidant composition is used in the styrene-based thermoplastic elastomer, aging resistance and anti-yellowing performance of the styrene-based thermoplastic elastomer can be greatly increased; the ingredients of the antioxidant composition are harmfulless substances, so that environmental pollution can not be generated.

Description

technical field [0001] The invention relates to an antiaging agent composition and a preparation method thereof, as well as a styrene-based thermoplastic elastomer containing the antiaging agent composition and a preparation method thereof. Background technique [0002] Styrene-based thermoplastic elastomer is currently the world's largest thermoplastic elastomer with the properties most similar to rubber. At present, the polymer matrix of styrene-based thermoplastic elastomers is usually styrene-based block copolymers (Styreneic Block Copolymers, referred to as SBCs), which mainly have four types, namely: styrene-butadiene-styrene block Copolymer (SBS); Styrene-Isoprene-Styrene Block Copolymer (SIS); Styrene-Ethylene-Butene-Styrene Block Copolymer (SEBS); Styrene-Ethylene-Propylene-Benzene Ethylene-type block copolymers (SEPS). Among them, SEBS and SEPS are hydrogenated copolymers of SBS and SIS, respectively. [0003] SBS and SIS use styrene, butadiene or isoprene as ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/134C08K5/524C08K5/372C08L53/02
Inventor 王丽丽李传清赵青松于国柱曲亮靓李静刘苹刘翠云李绍宁乔勋昌
Owner CHINA PETROLEUM & CHEM CORP
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