LDPE (Low-density polyethylene)/EPDM (ethylene-propylene-diene monomer)/POM (polyoxymethylene) composite foam material and preparation method thereof

Abstract

The invention discloses an LDPE (low-density polyethylene)/EPDM (ethylene-propylene-diene monomer)/POM (polyoxymethylene) composite foam material. The foam material is prepared from the following raw materials in parts by weight: 80-100 parts of LDPE, 30-40 parts of EPDM, 20-30 parts of POM, 10-20 parts of activated calcium carbonate, 10-15 parts of nanometer argil, 2-3 parts of aluminate coupling agent DL-411, 1-2 parts of phenylisopropyl tri(dioctyl acyloxy pyrophosphate) titanate, 5-10 parts of decabromobibenzyl, 5-8 parts of 4,4'-oxybis benzenesulfonyl hydrazide, 5-8 parts of phthalate, 1-1.5 parts of biperoxide carbamate, 2-3 parts of zinc stearate, 1-2 parts of calcium stearate, 1-2 parts of dibasic lead phosphite, 2-3 parts of microcrystalline wax, 3-5 parts of modified wood ash, 1-2 parts of ultraviolet light absorber UV-329 and 2-3 parts of antioxidant 1076. The produced LDPE foam material is light and soft, has high strength, good resilience, an ideal foaming effect, uniform, fine and dense pores and good flame retardance, is resistant to chemical corrosion and aging 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 LDPE / EPMD / POM composite foaming 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 requirements for the flame retar...

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