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利用共轭三组分ＩＰＮ和界面共轭互穿新概念，制备了聚氨酯（ＰＵ）／聚甲基丙烯酸甲酯（ＰＭＭＡ）／废胶粉（ＳＲＰ）共轭三组分ＩＰＮ。其性能明显优于ＰＵ／ＳＲＰ体系。还通过ＴＥＭ，ＳＥＭ，ＤＳＣ，ＰＡＬ等手段对三组分体系进行了结构形态分析，发现作为公共网络的ＰＭＭＡ对性能改进具有重要的作用。
Conjugate three component IPNs of polyurethane (PU) / polymethylmethacrylate (PMMA) / scrap rubber powder (SRP) were prepared by using the new concepts of conjugate three component IPN and interfacial conjugate interpenetrating. Its performance is obviously better than PU / SRP system. The three-component system was also analyzed by TEM, SEM, DSC and PAL. It was found that PMMA as a public network played an important role in the performance improvement.