【摘要】 通过选择物理机械性能优异的聚酯多元醇扩链剂、交联剂，严格控制ＮＣＯ／ＯＨ的比值，在酸性条件下合成适合二层革整饰要求的湿固化聚氨酯。参考文献５更多还原

【Abstract】 Abstract According to the proportion, polyester polyhydric alcohol, chain extender, cross linker, MDI, DMF and other auxiliaries are, one by one, put into a reactive still. The reaction temperature is controlled at 60～80℃ and the temperaturekeeping reaction lasts for 6～8 hrs. No change of —NCO contents is found, though they are measured many times, which means the completion of the reaction. The obtained polymer is placed in a dry container and sealed in storage.5 references更多还原