VB6改性纳米二氧化钛锡钙复合稳定剂的制备及其在聚氯乙烯中的应用  

Preparation of VB modified nanometer titanium dioxide tin-calcium composite stabilizer and its application in polyvinyl chloride

作　　者：陈岩 鲁伊恒[1] 马龙娟 王兵 Chen Yan;Lu Yiheng;Ma Longjuan;Wang Bing(College of Chemical Engineering,Anhui University of Science and Technology,AnHui Huainan 232001)

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001

出　　处：《云南化工》2020年第9期46-48,共3页Yunnan Chemical Technology

基　　金：安徽理工大学研究生培养基金项目资助(编号2019-2020)。

摘　　要：采用超声辐射法将VB6作为改性剂改性纳米二氧化钛。将硬脂酸锌(CaSt2)、硫醇甲基锡(DX-181)、改性纳米二氧化钛、PVC和增塑剂(DOTP)按一定比例复配,经过密炼机密炼和压片制得PVC薄膜,在195℃下进行等温变色和释放氯化氢电导率实验。结果表明:PVC复合材料的耐热性随改性剂的增加而改变,复合添加剂可部分替代DX-181,且当改性纳米二氧化钛投料量在1份时可显著提高PVC的热稳定性。VB6 is used as a modifier to modify nano titanium dioxide by ultrasonic radiation method. Zinc stearate( CaSt2),methyl tin thiolate( DX-181),modified nano titanium dioxide,PVC and plasticizer( DOTP) are compounded according to a certain ratio,and then are made by secret mixing and tableting. The film was subjected to an isothermal discoloration and hydrogen chloride release conductivity experiment at 195°C. The results show that the heat resistance of the PVC composite material changes with the increase of the modifier. The composite additive can partially replace DX-181,and when the dosage of the modified nano titanium dioxide is 1 part,it can significantly improve the thermal stability of PVC.

关 键 词：PVC 改性纳米二氧化钛 热稳定性 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]