EPP (Expanded Polypropylene) packaging plastic foams and preparation method thereof

Abstract

The invention discloses EPP (Expanded Polypropylene) packaging plastic foams and a preparation method thereof. The EPP packaging plastic foams are prepared from the following components in parts by weight: 150-220 parts of high melt strength polypropylene, 8-17 parts of foamer, 2-4 parts of polycarbonate, 0.5-1.5 parts of metal salt, 2-4 parts of ammonium polyphosphate, 1-5 parts of solidifying agent, 3-4 parts of compatibilizer, 2-6 parts of polyvinylidene chloride, 9-16 parts of EVOH (Ethylene Vinyl Alcohol Copolymer) resin, 2-6 parts of polyvinylidene chloride, 1-2.5 parts of polyvinyl alcohol, 3-6 parts of foam stabilizer and 15-20 parts of glass fiber. The invention relates to the technical field of EPP materials. The preparation method of the EPP packaging plastic foams comprises thefollowing steps of raw material preparation, primary expansion, premix mixing, material compression, feeding and demoulding. By adding the glass fibers, the metal salt, the polyvinylidene chloride, the polyvinylidene chloride and the EVOH resin in the EPP raw material, the whole flame retardant property of the material is remarkably improved, and major accidents caused by ignition of the materialare effectively reduced; and a product is good in self-cleaning property, liable to clean, difficult in breeding bacteria and very attractive in surface and is very suitable for being used as a packaging material.

Description

technical field [0001] The invention relates to the technical field of EPP materials, in particular to an EPP packaging plastic foam and a preparation method thereof. Background technique [0002] After the existing products are processed and produced, they are usually protected and packaged with foam plastic products. For high-tech electronic products, it is necessary to use anti-static foam plastic products for packaging. At the same time, the hardness of foam plastic products is also required to prevent static electricity from affecting the performance of high-tech electronic products, and at the same time to avoid external impact on high-tech products. Destruction of electronic products. However, the hardness of traditional foam plastic products is low and has a certain degree of flexibility, which cannot protect the product well. EPP is a polypropylene plastic foam material and is a high-performance high-crystalline polymer / gas compound. The material, with its unique ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an EPP packaging plastic foam and its preparation method, which solves the problems of the existing EPP packaging materials, such as insufficient pressure resistance, cushioning and heat insulation performance, poor flame retardancy, low hardness, and EPP foam plastics. The problem of poor molding quality