改性高岭土填充聚丙烯的光谱分析  

Spectral Analysis of Modified Kaolinite Filled with Polypropylene

作　　者：郑玉婴[1] 李峰[2] 葛亮[2] 郭勇[2] 

机构地区：[1]福州大学材料科学与工程学院,福建福州350108 [2]福州大学化学化工学院,福建福州350108

出　　处：《光谱学与光谱分析》2011年第11期3036-3039,共4页Spectroscopy and Spectral Analysis

基　　金：国家科技部科技人员服务企业项目(292009GJC40029);福建省科技计划重大专项专题项目(2007HZ0001-2)资助

摘　　要：采用湿法对高岭土进行表面改性,熔融共混法制备了PP/高岭土/PP-g-MAH复合材料。利用傅里叶变换(FTIR)红外光谱仪、热重分析(TGA)、X射线衍射(XRD)和扫描电子显微镜(SEM)手段表征和力学、热学性能测试。结果表明:改性剂很好地与高岭土反应,并且与PP-g-MAH产生良好的协同作用。复合材料的拉伸强度提高了10.6%、缺口冲击强度优于未改性高岭土复合材料。XRD测试表明,复合材料的各峰位置没有明显变化,高岭土具有异相成核作用,大大提高了结晶度;高岭土使PP基体的热变形温度提高了18℃。SEM分析得出,改性高岭土均匀地分散于PP基体中。With wet surface modification of kaolinite,composite of PP/Kaolinite/PP-g-MAH was prepared by melt blending process.The kaolinite and composite were characterized by means of Flourier transform infrared（FTIR） spectroscopy,thermo gravimetric analyzer（TGA）,X-ray diffraction（XRD） and scanning electron microscope（SEM）,and mechanical,thermal performance test.The results indicated that the modifier reacted well with kaolinite and produced synergistic effect well with PP-g-MAH.The tensile strength increased by 10.6%,notched impact strength was better than unmodified kaolinite composite.XRD showed that the diffraction peaks of the composite didn＇t change evidently,and kaolinite had heterogeneous nucleation effect and increased the degree of crystallization greatly.The heat distortion temperature of the composite was increased by 18 ℃.SEM analysis showed that the modified kaolinite particles were homogeneously dispersed in the PP matrix,and the modification effect of kaolin was increased.

关 键 词：高岭土 聚丙烯 表面改性 

分 类 号：TQ316.6[化学工程—高聚物工业] TQ327