Method for preparing ternary complex antiager and emulsion and application thereof in neoprene

Abstract

The invention provides a method for preparing ternary complex antiager and an emulsion and an application thereof in neoprene. The ternary complex antiager is prepared by formulation and mixing of a bisphenol mono-acrylate antiager, a hindered phenolic antiager and a sulfoether antiager according to specified proportioning. The preparation method comprises the following steps: dissolving the ternary complex antiager prepared by the above method with an organic solvent at room temperature; adding an emulsifying agent prepared by the mixture of disproportionated rosin acid soap water solution and sulfoacid anionicsurfactant water solution for fully mixing; and obtaining the ternary complex antiager emulsion after dispersing. In the process of synthesizing the neoprene rubber latex, the ratioof the dry glue of the neoprene in terms of the added ternary complex antiager emulsion is 1:0.03-0.07. The research of an aging test shows that the neoprene product prepared by adding the ternary complex antiager emulsion of the invention is superior to the neoprene product prepared by using the antiager BHT in the aspects of appearance color, Mooney viscosity, Mooney scorch time and mechanicalintensity property indexes.

Description

technical field [0001] The invention relates to a ternary composite anti-aging agent, a method for producing an emulsion and its application in the production of chloroprene rubber, so as to obtain a chloroprene rubber product with stable performance. The ternary composite anti-aging agent is made of a bisphenol monoacrylate antioxidant, a hindered phenolic antioxidant and a sulfide antioxidant as raw materials, and is made after compounding. Background technique [0002] Chloroprene rubber is an elastomer obtained by homopolymerization or copolymerization with 2-chloro-1,3-butadiene as the main raw material. It is proved by its crystallization behavior and infrared absorption spectrum analysis that the main chain of chloroprene rubber mainly contains linear chains of trans 2-chloro-2-butene units, such as: [0003] [0004] The mechanical properties of chloroprene rubber depend on the microstructure of the polymer, and the processing performance depends on the molar mas...

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Problems solved by technology

[0022] The present invention aims at the problems of poor anti-aging performance and environmental pollution caused by adding anti-aging agent BHT in the production process of chloroprene rubber, and effectively selects a ternary compound anti-aging agent containing bisphenol monoacrylate anti-aging agent, and studies its preparation method and usage rules , to obtain a neoprene product with stable performance, aiming at improving the anti-aging performance and eliminating the continued use of the harmful product BHT

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