Sound-proof and thermal-insulating polyurethane foaming plastic

Abstract

The invention discloses sound-proof and thermal-insulating polyurethane foaming plastic, which is prepared through mixing, pouring, reacting and curing the following A and B materials in parts by weight: the A materials: 100 parts of aromatic polyester polyol, 3-4 parts of aromatic tetracid dianhydride, 1.0-2.0 parts of rosin-polythylene oxide ester, 3-4 parts of water, 3.8-4.5 parts of polyisobutene, 5.0-7.0 parts of sodium tripolyphosphate, 3-4 parts of ferrocene, 1-2 parts of methenamine, 20-30 parts of sepiolite powder, 1-2 parts of tetraethylenepentamine and 6-8 parts of modified attapulgite; the B material: 25-28 parts of isocyanate. According to the invention, the modified attapulgite is added, the sound-proof and thermal-insulating polyurethane foaming plastic has good adsorption function, can adsorb certain noise, and has good soundproof effect and good thermal-insulating and heat preservation function; the uniformity of foam holes is excellent, the flexibility of the foaming plastic can be improved, and the foaming plastic is light in weight, shockproof and corrosion resistant, and can be popularized within a wide range.

Description

technical field [0001] The present invention relates to a kind of sound-insulating and heat-insulating polyurethane foam plastics in particular. 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 packaging con...

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.