Anti-oxidation nylon breather valve material and preparation method thereof

Abstract

The invention discloses an anti-oxidation nylon breather valve material. The material is prepared from, by weight, 1-2 parts of 4-tert-amylphenol, 3-4 parts of lauryl mercaptan, 1-2 parts of 2,6-di-tert-butyl-p-cresol, 0.7-1 part of saturated stearamide, 4-6 parts of acetyl triethyl citrate, 0.7-1 part of naphthenic soap, 100-140 parts of nylon 6, 1-2 parts of nickel sulfamate, 27-40 parts of scolecite, 3-4 parts of aluminum stearate, 4-6 parts of polyethylene wax, 0.1-0.2 part of hexamethyl cyclotrisiloxane, 0.1-0.2 part of tribasic lead sulfate, 6-8 parts of sodium fluosilicate, 0.4-1 part of dibenzothiazyl disulfide, 0.1-0.2 part of dicumyl peroxide and 5-7 parts of acrylamide. Antioxidant performance of the finished material is effectively improved by adding 4-tert-amylphenol, 2,6-di-tert-butyl-p-cresol and the like. The breather valve material has good hardness and impact strength, and storage stability of the finished product is effectively improved by adding naphthenic soap, nickel sulfamate, tribasic lead sulfate and the like.

Description

technical field [0001] The invention relates to the technical field of breathable valve materials, in particular to an oxidation-resistant nylon breathable valve material and a preparation method thereof. Background technique [0002] Waterproof and breathable valve, commonly known as respirator, breathable screw, etc., the outer shell is PA66+20% glass fiber raw material injection molding or brass is used as the hard support, and the outer shell is high temperature resistant silicone O-ring. The membrane material and the shell are combined through a variety of tight packaging processes, which have the characteristics of stable performance, simple installation, long service life, and high waterproof and breathable performance; [0003] Traditional breathable valve materials are mostly composed of nylon and glass fiber blends, and glass fiber is prone to problems such as poor dispersion as a reinforcing agent for nylon. Therefore, how to improve the compatibility of glass fib...

AI Technical Summary

Problems solved by technology

[0003] Traditional breathable valve materials are mostly composed of nylon and glass fiber blends, and glass fiber is prone to problems such as poor dispersion as a reinforcing agent for nylon. Therefore, how to improve the compatibility of glass fiber in nylon or find new The raw material to replace the glass fiber reinforced nylon material is the direction of our research