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Antioxidant applied to acrylonitrile-butadiene rubber latex and carboxylic acrylonitrile butadiene rubber latex and preparation method

A carboxylated nitrile latex and antioxidant technology, applied in the field of antioxidants, can solve the problems of unfavorable latex, increased cost, and reduced antioxidant efficiency

Active Publication Date: 2014-01-08
RIANLON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are problems with this antioxidant emulsion: 1) The emulsification process is complicated, and the anti-combined oxidant is not easy to emulsify completely; 2) It is difficult to maintain a stable emulsion system after emulsification, and it is easy to be demulsified to precipitate antioxidant solids and reduce the antioxidant efficiency. ; After being applied to nitrile latex and carboxylated nitrile latex, it will precipitate in the latex after a long period of storage, which will have an extremely adverse effect on the use of latex; 3) The emulsified antioxidant emulsion requires harsh conditions for long-term storage , it is best to store at a constant temperature, so it will increase the cost

Method used

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  • Antioxidant applied to acrylonitrile-butadiene rubber latex and carboxylic acrylonitrile butadiene rubber latex and preparation method

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Experimental program
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Effect test

example 1-7

[0033] Compound antioxidant: the mass is the mass of antioxidant a) component (where a1 is the mass of 4,6-bis(octylthiomethyl)o-cresol, a2 is the mass of 4,6-bis(n-dodecylthiomethyl) base) the mass of o-cresol), and the mass is the antioxidant b) component (where b1 is the mass of 3,5-di-tert-butyl-4-hydroxyphenylpropionate isooctyl, b2 is 3,5-di-tert- The mass of butyl-4-hydroxyphenylpropionic acid C7-C9 mixed alcohol ester) and the mass of antioxidant c) component, at temperature T 1 under stirring t 1 hours, then heated to T 2 Keep warm for later use. In this way, the compound antioxidant is obtained, and the total antioxidant quality W is obtained;

[0034] will mass W d Add polyvinyl alcohol to 1000kg of pure water, start stirring, and heat to T under stirring 3 , hold at this temperature t 2 Hour. Maintaining this temperature, add mass W to it e emulsifier, stirring t 3 hours, and keep warm at T 3 Next, the aqueous solution A was obtained.

[0035] Put the co...

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Abstract

The invention relates to an antioxidant applied to acrylonitrile-butadiene rubber latex and carboxylic acrylonitrile butadiene rubber latex and a preparation method. The antioxidant comprises the following components: (a) component, i.e., one or combination of two of 4,6-bis(octylsulfanyl methyl) orthocresol (a1) or 4,6-bis(n-dodecyl methyl sulfide) orthocresol (a2); (b) component, i.e., one or combination of two of 3,5-di-tert-butyl-4-isooctyl hydroxyphenyl propionate (b1) or 3,5-di-tert-butyl-4-hydroxybenzene propanoic acid C7-C9 mixed alcohol ester (b2), and (c) component, i.e., ditridecyl thiodipropionate. After the antioxidant is prepared into emulsion and is applied to the acrylonitrile-butadiene rubber latex and the carboxylic acrylonitrile butadiene rubber latex to be prepared into a finished product, the antioxidant emulsion system has an ideal anti-oxidation effect; the application performance of the product is measured after long-term aging under a thermal oxidation condition; the superior long-term thermal oxidation stability of the antioxidant emulsion on the product is also displayed.

Description

technical field [0001] The invention relates to the technical field of antioxidants, in particular to an antioxidant emulsion applied to nitrile latex and carboxylated nitrile latex and a preparation method. Background technique [0002] Nitrile latex is produced by the emulsion copolymerization of butadiene and acrylonitrile. Due to the nitrile group in the molecular chain of the copolymer, it has good oil resistance, solvent resistance and chemical resistance, and has good adhesion to polar substances such as fibers and leather. It is compatible with starch, casein, vinyl resin, phenolic Polar polymer substances such as resins and urea-formaldehyde resins have good compatibility. Nitrile latex is mainly used as adhesives and oil-resistant and solvent-resistant impregnated products. It can be used in pulp additives, paper processing, non-woven fabrics, surface coatings, asbestos product additives and adhesives, etc. in non-vulcanized products. It can be used to make oil-r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/04C08L13/02C08K5/375C08K5/134C08K5/372
Inventor 汤翠祥安平孙春光
Owner RIANLON
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