聚丙烯/改性长石复合材料的制备、性能及结构表征  

Preparation,Properties and Structure Characterization of Polypropylene/Modified Feldspar Composites

作　　者：韩卫[1,2] 甄卫军[1,2] 李进[1,2] 陈进江 常朝峰 

机构地区：[1]新疆大学化学化工学院,新疆乌鲁木齐830046 [2]新疆大学石油天然气精细化工教育部(自治区)重点实验室,新疆乌鲁木齐830046 [3]新疆农十三师兴达矿业有限公司,新疆哈密839000

出　　处：《中国塑料》2012年第7期51-56,共6页China Plastics

基　　金：北京化工大学化工资源有效利用国家重点实验室开放课题(CRE-2011-C-203);新疆生产建设兵团科技攻关和重点科技项目(2011BA023)

摘　　要：以新疆地产哈密长石为原料,对长石进行湿法表面改性。以改性长石作为填料,制备了聚丙烯(PP)/改性长石复合材料,对其性能及微观结构进行了测试和表征。结果表明,改性长石的界面接触角明显增大;与PP基体相比,PP/5%改性长石复合材料的拉伸强度提高了3.78%,冲击强度提高了3.40%,热分解温度提高了6.47℃;改性长石填料起到了部分β-PP晶成核剂的作用,PP/改性长石复合材料的结晶度比纯PP有了不同程度的提高。Hami feldspar was modified through surface wet method, which was used in polypropylene（PP）/modified feldspar composites. The properties and structure of PP/modified feldspar composites were characterized and analyzed. Results showed that the surface of modified feldspar particle was hydrophobie. The tensile and impact strengths of PP/5 %modified feldspar composites increased by 3.78 %, and 3.40 %, respectively, compared with those of neat PP. The heat decomposition temperature of the composites was 6.47 °C higher than that of neat PP. Modified feldspar acted as nucleation agent which increased the crystallinity of PP.

关 键 词：聚丙烯 改性长石 力学性能 结晶性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]