聚乳酸/聚碳酸亚丙酯纺粘非织造布切片的制备与性能研究  

Preparation and property of poly(lactic acid)/poly(propylene carbonate)spunlaid nonwoven slice

作　　者：张政卿 徐鼐[1] 潘莉莎[1] 庞素娟[1] 徐瑞璋[1] 马楠松[1] 魏太演 陈喆 陈龙敏 

机构地区：[1]海南大学材料与化工学院,海口570228 [2]国家非织造材料工程技术研究中心,海口570125

出　　处：《化工新型材料》2015年第7期40-43,共4页New Chemical Materials

基　　金：国家非织造材料工程技术研究中心开放课题(KFKT201103);国家自然科学基金项目地区科学基金(51263007);海南省产学研一体化专项项目(CXY20130047)

摘　　要：将马来酸酐封端的聚碳酸亚丙酯(PPC)与聚乳酸(PLA)熔融共混,制备环境友好型纺粘非织造布切片料,并对上述切片料的拉伸性能、耐热性能、结晶性能以及流变性能进行了系统表征。结果表明:改性PPC对PLA的增韧效果显著。当改性PPC含量达到20%时,材料的断裂伸长率由纯PLA的2.3%升高至74.9%的最大值。同时,材料的拉伸强度降低幅度较小。上述切片的耐热性能以及熔体流动性能较好,可满足纺粘非织造布纤维成型的工艺要求。End-capped poly（propylene carbonate）（PPC）by maleic anhydride was melt blended with poly（lactic acid）（PLA）to prepare environmentally friendly spunlaid nonwoven slices.The tensile property,thermal property,crystallization and rheological behavior of slices were systematically measured.The results indicated that the toughening effect of modified PPC on PLA was significant.When the content of modified PPC reached to 20%,the elongation at breaking increased to the maximum value of 74.9%from 2.3%for neat PLA.Meanwhile,the decrease in tensile strength of slices was relatively small.Moreover,it was confirmed that the thermal property and rheological property of slices satisfied to the spinning process demands of spunlaid nonwovens.

关 键 词：环境友好 聚乳酸 聚碳酸亚丙酯 非织造布 切片 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]