Transparent nylon elastomer and preparation method thereof

Abstract

The invention discloses a transparent nylon elastomer, which is prepared from the following components in parts by weight: 35-80 parts of nylon, 8-50 parts of a polystyrene-b-poly(ethylene / ethylene / propylene)-b-polystyrene block copolymer, 1-20 parts of N,N-dimethyl-p-toluenesulfonamide, 1-35 parts of paraffin oil, 1-35 parts of naphthenic oil, 1-15 parts of maleic anhydride-grafted SEBS / SEEPS, 0.1-2 parts of an antioxidant 1098, 0.1-2 parts of a lubricant, 0.1-2 parts of a nucleating agent and 0.1-2 parts of a light stabilizer; the relative viscosity of the nylon is 2.1-4.0; the grafting rate of the maleic anhydride-grafted SEBS / SEEPS is 0.8% or more; and the lubricant is a lubricant EB-FF or polyethylene wax. The light transmittance of the transparent nylon elastomer is high, the elongation at break reaches 450 or over, the transparent nylon elastomer has the non-breaking characteristic in notch impact at -30 DEG C, and the harness reaches a relatively wide interval of 50-95 (shore A).

Description

technical field [0001] The invention relates to the technical field of nylon elastomers, in particular to a transparent nylon elastomer and a preparation method thereof. Background technique [0002] Because nylon contains polar amide groups and can form hydrogen bonds between molecules, it has the advantages of high mechanical strength, low friction coefficient, self-lubricating performance, heat resistance, and wear resistance. As an engineering plastic, it is widely used in the fields of automobiles, machinery, electronic appliances, etc., but generally transparent nylon has low flexibility, poor low temperature resistance, and high water absorption, which limits its application. [0003] Patent No. 101796099A prepares a transparent polyamide elastomer containing polyamide components, polyester and / or polyether components through a synthetic method. The raw materials and production process are extremely complicated and difficult to produce and prepare. [0004] The inven...

AI Technical Summary

Problems solved by technology

As an engineering plastic, it is widely used in automobiles, machinery, electronic appliances and other fields, but generally transparent nylon has low flexibility, poor low temperature resistance, and high water absorption, which limits its application to a certain extent.

[0003] Patent No. 101796099A prepares a transparent polyamide elastomer containing polyamide components, polyester and / or polyether components through a synthetic method. The raw materials and production process are extremely complicated and difficult to produce.

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