It was found that there existed some interaction between the hard segment of polyurethane and polyacrylonitrile in this polymer blend system.
发现在该共混体系中，聚氨酯硬段与聚丙烯腈之间存在一定程度的相互作用。
When polymer to cement ratio is 0.2, the blend system has a good continuous three dimensional net microstructure.
当聚灰比值为02时，该共混体系在微观上即可形成良好的连续的三维空间网状结构。
When polymer to cement ratio is 0.2, the blend system has a good continuous three dimensional net microstructure.
当聚灰比值为02时，该共混体系在微观上即可形成良好的连续的三维空间网状结构。
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