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简述了提高聚氨酯(PU)材料耐热性能的常用方法,包括引入有机杂环、选择耐热聚合物多元醇、引入金属离子、共混和形成互穿聚合物网络(IPN)结构的改性及研究进展,并对耐热PU材料的发展趋势作了展望。
The common methods to improve the heat resistance of polyurethane (PU) materials are briefly introduced, including the introduction of organic heterocycles, the selection of heat-resistant polymer polyols, the introduction of metal ions, the modification of the IPN structure and the formation of interpenetrating polymer networks Research progress, and prospects for the development trend of heat-resistant PU materials.