TiO_2包覆硅灰石填充对PA1010复合材料的影响  

Effect of TiO_2-Coated Wollastonite on PA1010 Composites

作　　者：周俊[1] 吴爱峰[2] 钱瑶[2] 欧雪梅[2] 

机构地区：[1]中国矿业大学孙越崎学院,江苏徐州221008 [2]中国矿业大学材料科学与工程学院,江苏徐州221008

出　　处：《现代塑料加工应用》2014年第5期12-15,共4页Modern Plastics Processing and Applications

摘　　要：以硅灰石为原料,钛酸四正丁酯为包覆剂,采用溶胶-凝胶法制备了一种纳米TiO2包覆硅灰石复合颗粒,并用电子显微镜(SEM),红外光谱仪(FTIR)等对TiO2包覆硅灰石颗粒进行表征。结果表明:硅灰石表面均匀地包覆了一层厚度约为60nm的非晶态纳米TiO2,进而将TiO2包覆硅灰石复合颗粒填充尼龙1010(PA1010)。用差示扫描量热仪(DSC)对填充后复合材料的聚集态结构进行分析后发现,硅灰石表面包覆TiO2膜改善了硅灰石与尼龙基体的界面结合状况,同时对PA1010产生了诱导结晶作用。A new type of nano-TiO2/wollastonite composite particles was prepared with tetrabutyl titanate as the coating agent by the sol-gel method.And then,the TiO2 coating wollastonite composite particle was characterized by SEM,FTIR and so on.The results show that the wollastonite is coated by amorphous nano-TiO2,and the average thickness of TiO2 is 60nm.Furthermore,the composite particles are filled into polyamide 1010（PA1010）to produce the PA composite.The aggregate state structure of the composite is analyzed by DSC.The results show that the wollastonite wrapped by TiO2 can improve interfacial binding state between the wollastonite with nylon base and induce the crystallization of PA1010.

关 键 词：硅灰石 二氧化钛 表面包覆 尼龙1010 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]