Anti-oxidation nylon breather valve material and preparation method thereof
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An anti-oxidation and breathable valve technology, applied in the field of breathable valve materials, can solve the problems of poor dispersion, achieve good hardness and impact strength, improve oxidation resistance, and improve storage stability
Inactive Publication Date: 2017-01-04
NINGBO TONGGUAN ELECTRIC AUTOMATION EQUIP
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[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
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[0016] An anti-oxidation nylon breathable valve material, which is composed of the following raw materials in parts by weight:
[0018] A preparation method of the anti-oxidation nylon breathable valve material, comprising the following steps:
[0019] (1) Add the above-mentioned sodium fluorosilicate to deionized water 60 times its weight, stir evenly, add 10 mol / l sulfuric acid dropwise, adjust the pH to 2, raise the temperature to 70°C, keep stirring for 10 minutes, add the above Calcium zeolite, stirred to room temperature, added saturated octadecylamide, ultrasonicate...
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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...
Claims
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