Experimental results show that properties of PU foams made of polyether polyols and polyisocyanate(PAPI) with six functional groups are the best.
结果表明：以六官能团的聚醚多元醇和有机多异氰酸酯（PAPI）制得的PU结构泡沫力学性能最优；
The unblocking reaction of blocked PAPI at different temperature is studied with IR spectrometry, the initial and final dissociation temperatures are investigated.
应用红外光谱法研究了封闭PAPI在不同温度下的解封反应，考察了其起始解封温度及完全解封温度。
The unblocking reaction of blocked PAPI at different temperature is studied with IR spectrometry, the initial and final dissociation temperatures are investigated.
应用红外光谱法研究了封闭PAPI在不同温度下的解封反应，考察了其起始解封温度及完全解封温度。
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