Heat-resisting and damping polyether type polyurethane sponge

Abstract

The invention discloses heat-resisting and damping polyether type polyurethane sponge; a formula of the polyether type polyurethane sponge comprises the following components by mass: 200-400 parts of dimethyl-hexane-1,6-dicarbamate, 90-180 parts of polytetrahydrofuran glycol, 10-20 parts of 1,4-butanediol, 5-20 parts of diethyl aluminum phosphinate, 20-40 parts of bisphenol A type epoxy resin, and 10-15 parts of Chinese mugwort essential oil. Compared with the prior art, the polyether type polyurethane sponge provided by the invention adopts an ester exchange polycondensation process and is prepared by the steps of taking a raw material dimethyl carbonate as a starting material, performing a reaction with organic matters to obtain a polyurethane synthesis intermediate dimethyl-hexane-1,6-dicarbamate (HDC), and then performing ester exchange and polycondensation reaction of the HDC with oligomer polyols to obtain the polyether type polyurethane sponge; the process has the advantages of simple operation, short route, and low requirements on equipment, and can effectively reduce production costs; the use of highly toxic substance phosgene is avoided, the isocyanate production line is bypassed, and clean production of polyurethane is achieved.

Description

technical field [0001] The invention belongs to the technical field of polyurethane materials, and more specifically relates to a heat-resistant and shock-absorbing polyether polyurethane sponge. At the same time, the invention also relates to a production process of heat-resistant and shock-absorbing polyether polyurethane sponge. Background technique [0002] In recent years, with the rapid development of industry around the world and the rapid growth of world population, the problem of environmental pollution facing mankind has become increasingly serious, and the contradiction between man and nature has become increasingly intensified. The concepts of "green" and "environmental protection" have gradually gained popularity, and "green chemical industry" has begun to enter people's field of vision and become the focus of governments of various countries. Green chemical industry is a revolution to traditional chemical industry. It aims to produce the target product under ...

AI Technical Summary

Problems solved by technology

[0004] At the same time, in the prior art, however, the widely used polyether polyurethane sponge is not only not environmentally friendly, but also has poor heat resistance and flame retardancy, so it cannot be well developed in the market.