A kind of EVA-coated talcum powder modified low-density polyethylene foam material and preparation method thereof

Abstract

The invention discloses an EVA (Ethylene-vinyl acetate) coated talcum powder modified low-density polyethylene foam material. The low-density polyethylene foam material is prepared from the following raw material in parts by weight: 60-100 parts of LDPE (low-density polyethylene), 0-40 parts of LLDPE (linear low-density polyethylene), 30-40 parts of EVA, 10-20 parts of talcum powder, 2-3 parts of tetraisopropyl di(dioctylphosphate) titanate, 5-10 parts of aluminium hydroxide, 4-6 parts of azodicarbonamide, 2-3 parts of sodium bicarbonate, 5-8 parts of trioctyl trimellitate, 1-1.5 parts of dicumyl peroxide, 2-4 parts of zinc oxide, 1-2 parts of stearic acid, 1-2 parts of lead sulfate tribasic, 2-3 parts of chlorinated polyethylene, 3-5 parts of modified tree ash, 1-2 parts of ultraviolet absorber UV-531 and 2-3 parts of antioxidant 1010. The EVA-coated talcum powder modified low-density polyethylene foam material disclosed by the invention is light in weight, soft, high in strength and good in rebound resilience, the foaming effect is ideal, and bubble holes are uniform, small and dense, so that the EVA-coated talcum powder modified low-density polyethylene foam material is good in fire resistance, resistant to chemical corrosion and ageing and is durable in use.

Description

technical field [0001] The invention belongs to the field of polymer material processing, and in particular relates to an EVA-coated talcum powder modified low-density polyethylene foam material and a preparation method thereof. Background technique [0002] Low-density polyethylene foam has excellent physical, chemical and mechanical properties. It is tough, flexible, wear-resistant, has excellent electrical insulation, heat insulation and chemical resistance, and is widely used in many fields such as packaging, chemical industry, and construction. However, at present, low-density polyethylene foaming materials still have shortcomings such as low strength, poor resilience, and uneven cells. Therefore, one of the development directions of low-density polyethylene foaming materials is to develop soft, high-flexibility, high-strength materials. , a closed-cell foam grade with uniform cells, small and dense, and at the same time, various fields also put forward corresponding r...

AI Technical Summary

Problems solved by technology

However, at present, low-density polyethylene foaming materials still have shortcomings such as low strength, poor resilience, and uneven cells. Therefore, one of the development directions of low-density polyethylene foaming materials is to develop soft, high-flexibility, high-strength materials. , uniform cells, small and dense closed-cell foam grade, at the same time, various fields also put forward corresponding requirements for the flame retardancy of plastic materials