Compound antioxidant for ABS latex

Abstract

The invention discloses a compound antioxidant for ABS latex, comprising the following components of A-L polyphenol and dilauryl thiodipropionate; according to weight ratio of 1:0.8 to 1:2, the dilauryl thiodipropionate and the A-L polyphenol are mixed and melted, deionized water and rosin potassium soap with the weight percentage concentration of 80 to 90 percent are added, the obtained mixture is homogenized and emulsified at high speed, and then is filtered so as to obtain nano-grade milky A-L / DLTDP compound emulsified liquid with solid particle size of less than 1 micrometer; the solid weight content of the A-L / DLTDP compound emulsified liquid is 40 to 60 percent, the ratio of the added weight of the deionized water and the weight of the A-L polyphenol is 1.5 to 2:1, and the ratio of the added weight of the rosin potassium soap and the weight of the A-L polyphenol is 0.2 to 0.3:1. The compound antioxidant has better oxidation resistance and anti-aging performance, is economical andeffective and is used for ABS latex.

Description

technical field

[0001] The invention relates to a compound antioxidant in the plastic and rubber industry, in particular to a compound antioxidant used in ABS latex. Background technique

[0002] With the development of the plastics industry and the rubber industry, the application of antioxidants as an important additive is becoming more and more common. However, as a functional additive, the effectiveness of antioxidants is increasingly valued by users. How to improve the effectiveness of antioxidants, one is to develop newer and more efficient antioxidants, such as phenolic antioxidants widely used in recent years, such as A-L polymerized phenol (butadiene after polymerization of cyclopentadiene and p-cresol) Based products) are more advanced polymeric phenolic antioxidants; the second is to apply the synergistic effect of antioxidants and develop compound antioxidants suitable for synergistic effects. Compound antioxidant is the characteristic of using the synergistic ...