Low-cost fire-retardant polyurethane foaming heat-preservation material

Abstract

The invention discloses a low-cost fire-retardant polyurethane foaming heat-preservation material. The low-cost fire-retardant polyurethane foaming heat-preservation material is characterized by being prepared from a material A and a material B in parts by weight as follows through the steps of mixing, casting, reacting and ageing: the material A comprises 100 parts of polyether glycol, 3-4 parts of a silane coupler KH-550, 2-3 parts of nanometer ore residue, 1.0-1.2 parts of magnesium stearate, 1-2 parts of butylmercaptooxo-stannane, 3-4 parts of water, 10-20 parts of aluminum hydroxide powder, 12-16 parts of expanded perlite powder, 10-12 parts of talcum powder, 2-3 parts of methylisothiazolinone and 6-8 parts of modified attapulgite; and the material B comprises 30-34 parts of diphenyl methane diisocyanate. According to the low-cost fire-retardant polyurethane foaming heat-preservation material disclosed by the invention, the modified attapulgite and the aluminum hydroxide powder are added, so that the low-cost fire-retardant polyurethane foaming heat-preservation material is a good physical fire retardant, and has an excellent fire-retardant effect; and the nanometer ore residue, the expanded perlite powder and the talcum powder are used for filling, so that the strength of the material is enhanced; besides, the low-cost fire-retardant polyurethane foaming heat-preservation material has definite tenacity, and is relatively low in density, resistant to ageing, resistant to yellowing, non-toxic, harmless and environmentally friendly.

Description

technical field [0001] The invention relates to a foaming material, in particular to a low-cost flame-retardant polyurethane foaming insulation material. Background technique [0002] Polyurethane foam is made of isocyanate and hydroxyl compound through polymerization and foaming. According to its hardness, it can be divided into two types: soft and hard, of which soft is the main variety. Generally speaking, it has excellent elasticity, softness, elongation and compressive strength; good chemical stability, resistance to many solvents and oils; excellent abrasion resistance, 20 times larger than natural sponge; and excellent processing It is a kind of cushioning material with excellent performance, but the price is relatively high. Polyurethane foam is generally only used for cushioning packaging or cushioning materials for high-end precision instruments, valuable instruments, and high-end handicrafts, etc., and can also be made into exquisite and extremely protective pack...

AI Technical Summary

Problems solved by technology

Generally speaking, it has excellent elasticity, softness, elongation and compressive strength; good chemical stability, resistance to many solvents and oils; excellent abrasion resistance, 20 times larger than natural sponge; and excellent processing It is a kind of buffer material with excellent performance, but the price is relatively high.