Compound Antioxidant for Production of Emulsion Polymerized Styrene Butadiene Rubber
A technology of styrene-butadiene rubber and antioxidant, which is applied in the field of stabilizing the new compound antioxidant used, which can solve the problems of danger, difficult biochemical treatment of industrial wastewater, environmental protection, etc., achieve stable performance, excellent antioxidant performance, and guarantee delivery The effect of indicators
Active Publication Date: 2015-12-30
RIANLON
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Problems solved by technology
[0009] The antioxidant TNPP is easily hydrolyzed to produce phosphorus-containing compounds, which will cause environmental protection pressure on subsequent sewage treatment; at the same time, the nonylphenol produced by the hydrolysis of the antioxidant TNPP is an environmental hormone, which has endocrine disrupting effects after accumulation in the biological chain, and can promote the proliferation of breast cancer cells , which are endocrine disruptors and carcinogens, and industrial wastewater containing nonylphenol is difficult to be biochemically treated
Therefore, the use of TNPP in emulsion polymerization of styrene-butadiene rubber is very dangerous and not environmentally friendly
Method used
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Effect test
example 1
[0025] Liquid phosphite antioxidant Phosphite 4,4'-isopropyl bisphenol tetra(C 12-15 Alcohol) ester 10g and liquid hindered phenolic antioxidant 3,5-di-tert-butyl-4-hydroxyphenylpropionate isooctyl 5g, mixed thoroughly and uniformly to obtain compound antioxidant AO-1#.
example 2
[0027] Liquid phosphite antioxidant Phosphite 4,4'-isopropyl bisphenol tetra(C 12-15 Alcohol) ester 10g and liquid hindered phenolic antioxidant styrenated phenol (also known as antioxidant SP) 10g, mixed thoroughly and uniformly to obtain compound antioxidant AO-2#.
example 3
[0029] Liquid phosphite antioxidant Phosphite 4,4'-isopropyl bisphenol tetra(C 12-15 Alcohol) ester 10g and liquid hindered phenolic antioxidant 4,6-bis(octylmethyl) o-cresol 12g, fully mixed evenly to obtain compound antioxidant AO-3#.
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The present invention relates to a compound antioxidant for producing emulsion polymerization styrene butadiene rubber. The compound antioxidant is composed of the following components in parts by weight: 1.0 part of liquid antioxidant phosphorous acid 4, 4'-diisopropyl double fork bisphenol tetra (C12-15 alcohol) ester and 0.5-1.2 parts of liquid hindered phenolic antioxidant. Wherein the liquid hindered phenolic antioxidant is preferably any one of 3, 5-di tertbutyl-4-hydroxyphenyl propionic acid isooctyl ester or styrenated phenol, or 4, 6-di(phoxim methyl) o-cresol. The weight content in the emulsion polymerization styrene butadiene rubber is 0.3-0.8%. The compound antioxidant provided by the invention is small in dosage, free of color pollution and free of TNPP and BHT, generates no nonylphenol due to hydrolysis and generates no influence on occupational health of operation workers or environment; the process operation is simple, the compound antioxidant has a 100% antioxidant function, and has a fast, high-efficiency and long-term protection function in the emulsion polymerization styrene butadiene rubber, so as to fully protect the stability of the emulsion polymerization styrene butadiene rubber.
Description
technical field [0001] The present invention relates to the new compound antioxidant used in the production and storage process of emulsion polymerized styrene-butadiene rubber to keep emulsion polymerized styrene-butadiene rubber stable. It uses liquid hindered phenolic antioxidant and liquid phosphite antioxidant compound It can be well emulsified into an antioxidant emulsion, which can be added uniformly and effectively to the emulsion polymerized styrene-butadiene rubber to exert excellent antioxidant performance; at the same time, the liquid phosphite antioxidant used replaces the original trinonyl Phenyl phosphite (antioxidant TNPP), which makes rubber neutralize and production wastewater does not contain nonylphenol, is an environmentally friendly antioxidant. [0002] The invention can satisfy the performance stability in the production, storage and application process of the environment-friendly emulsion polymerization styrene-butadiene rubber. Background technique ...
Claims
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IPC IPC(8): C08L9/06C08K5/526C08K5/134C08K5/13C08K5/375
Inventor 汤翠祥安平范小鹏孙春光
Owner RIANLON