PBS/SiO_2纳米复合材料的制备及其结构与性能分析  

The Preparation,Structure and Properties of PBS/SiO_2 Nanocomposite

作　　者：温乾[1] 刘跃军[1] 刘亦武[1] 

机构地区：[1]湖南工业大学包装与材料工程学院先进包装材料与技术湖南省普通高校重点实验室,湖南株洲412007

出　　处：《包装学报》2011年第3期15-19,共5页Packaging Journal

摘　　要：以聚丁二醇丁二酸酯(PBS)为基材,经-甲基丙烯酰氧基丙基三甲氧基硅烷偶联剂(KH570)改性过的纳米SiO2和未改性的SiO2为填料,采用熔融共混法制备了PBS/SiO2纳米复合材料。研究了所得纳米复合材料的热稳定性能、力学性能和降解性能等。结果表明:当经KH570表面改性的纳米SiO2(KH570与纳米SiO2的质量之比为1:5)的添加质量分数为4%时,复合材料的维卡软化点约提高了10℃,拉伸强度约提高30%,同时复合材料的降解性能比PBS纯料的降解性能有一定的提高。PBS was blended in a twin-screw extruder with unmodified nanoscale SiO2 and nanoscale SiO2 modified with KH570 to provide PBS/SiO2 nanocomposite.The heat resistance,mechanical properties and degradation of PBS/SiO2 nanocomposite were studied.The results showed that when PBS blended with nanoscale SiO2 modified with KH570（m（coupling agent）：m（nano-SiO2）=20%） by 4wt%,the vicat softening point of PBS/SiO2 nanocomposite increased by about 10℃,tensiles properties increased about 30%.Meanwhile,the degradation of PBS/SiO2 nanocomposite increased to certain degree than pure PBS.

关 键 词：PBS 纳米SIO2 热稳定性 

分 类 号：TQ127.2[化学工程—无机化工]