【摘要】 本文采用烯基双酚Ａ醚接枝低密度聚乙烯（ＬＤＰＥ－ｇ－ＤＢＡＥ）作为高密度聚乙烯／聚碳酸酯（ＨＤＰＥ／ＰＣ）共混体系的增容剂，初步研究了ＬＤＰＥ－ｇ－ＤＢＡＥ对ＨＤＰＥ／ＰＣ体系性能的影响。通过对共混物形态观察、耐热性能及力学性能测试，发现ＬＤＰＥ－ｇ－ＤＢＡＥ对ＨＤＰＥ／ＰＣ体系有良好的增容效果；并发现了增容剂的最佳用量质量比大致为１０％，提高增容剂的接枝率更有利于改善共混物的性能。６５／３５ＨＤＰＥ／ＰＣ共混物的ＨＤＴ为９２℃，拉伸强度３０２ＭＰａ，冲击强度２９８ｋＪ／ｍ２，分别比未加增容剂时的８２℃，２７３ＭＰａ和１５５ｋＪ／ｍ２有较大提高。更多还原

【Abstract】 s Using LDPE grafted with diallyl bisphenol A ether (LDPE-g-DBAE)as compatibilizer,the effect of LDPE-g-DBAE on the property of HDPE/PC blend was studied By means of the observation of the morphology and the test of the heat resistance and mechanical properties of the blend,LDPE-g-DBAE was found to have good compatible effect on HDPE/PC blend,the optimum content of LDPE-g-DBAE in the blend was 10% (by mass),resulting in HDT of 92℃,tensile strength of 30 2 MPa,notched impact strength of 29.8kJ/m 2,much higher than 82℃,27.3MPa and 15 5kJ/m 2 of blend with no LDPE-g-DBAE The increase of the graft ratio of LDPE-g-DBAE was benifit to the improvement of the property of the blend system更多还原