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Compound antioxidant for producing emulsion-polymerized styrene butadiene rubber and application thereof

A technology for styrene-butadiene rubber and emulsion polymerization, which is applied to compound antioxidants and application fields in the production of emulsion-polymerized styrene-butadiene rubber, can solve problems such as limited application range, and achieves simple process operation, easy emulsification, and stable protection. Effect

Inactive Publication Date: 2013-03-20
RIANLON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-aging agent 555PD is a mixture of alkyl-aryl p-phenylenediamine, and the product contains amine groups. It is only suitable for emulsion polymerization of styrene-butadiene rubber that allows coloring, and its application range is not wide.

Method used

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  • Compound antioxidant for producing emulsion-polymerized styrene butadiene rubber and application thereof
  • Compound antioxidant for producing emulsion-polymerized styrene butadiene rubber and application thereof
  • Compound antioxidant for producing emulsion-polymerized styrene butadiene rubber and application thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Weigh 10g of antioxidant 2-methyl-4,6-bis(octylthiomethyl)phenol and 14g of styrylphenol to make compound antioxidant 1#.

example 2

[0026] Weigh 10g of antioxidant 2-methyl-4,6-bis(octylthiomethyl)phenol and 16g of styrylphenol to make compound antioxidant 2#.

example 3

[0028] Weigh 10g of antioxidant 2-methyl-4,6-bis(octylthiomethyl)phenol and 18g of styrylphenol to make compound antioxidant 3#.

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PUM

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Abstract

The invention provides a compound antioxidant for producing emulsion-polymerized styrene butadiene rubber and an application thereof. The compound antioxidant is obtained by mixing and compounding hindered phenolic antioxidant styryl phenol and 2-methyl-4,6-di(octylthimethyl)-phenol in a proportion. New liquid antioxidant is added to the emulsion-polymerized styrene butadiene rubber after being emulsified; and the test result indicates that the antioxidant provided by the invention has remarkably improved hot-oxygen ageing resistance and long-term aging resistance in compared with a conventional antioxidant which is a complex of styryl phenol and TNPP (Trisnonylphenylphosphite), is more economical in comparison with liquid antioxidant 2-methyl-4,6-di(octylthimethyl)-phenol, does not contain TNPP and is an environment-friendly antioxidant.

Description

technical field [0001] The present invention relates to a new antioxidant for maintaining excellent stability during the production, storage and application of emulsion polymerized styrene-butadiene rubber. The antioxidant consists of liquid sulfur-containing hindered phenolic antioxidant 2-methyl-4, 6-bis(octylthiomethyl)phenol and liquid hindered phenolic antioxidant styrenated phenol in a preferred ratio of 1.0:2.2 (weight ratio), especially 1.0:1.6-2.0 (weight ratio), for emulsion polymerization In the production of styrene-butadiene rubber, it can excellently protect the produced emulsion polymerized styrene-butadiene rubber to maintain excellent appearance color and application performance during production, storage, transportation and use. Background technique [0002] Styrene-butadiene rubber is the largest general-purpose synthetic rubber variety, and it is also one of the earliest rubbers to realize industrial production. It is a random copolymer of butadiene and ...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08K5/375C08K5/13
Inventor 安平汤翠祥范小鹏孙春光李海平
Owner RIANLON
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