表面季铵化修饰的SiOx对PVC的增强与抗菌协同作用  

Synergistic Strengthening and Antimicrobial Effect of Surface-quaternized SiOx on PVC

作　　者：汤瑜[1] 邱树毅[1] 偰南杰 李晓霞[3] 吴远根[1] 陶维智 

机构地区：[1]贵州省发酵工程与生物制药重点实验室,贵州贵阳550003 [2]贵州省遵义碱厂,贵州遵义563004 [3]贵州大学化工学院,贵州贵阳550003

出　　处：《塑料工业》2008年第1期66-69,共4页China Plastics Industry

基　　金：国家自然科学基金(50363001);教育部春晕计划(S2005-2-52001);贵州省组织部高层次人才培养项目(黔教科2003105);贵州省自然科学基金(20033082);贵州省遵义碱厂企业横向合作项目等资助

摘　　要：通过熔融方式将表面季铵化修饰的SiOx纳米颗粒与PVC树脂共混,制备了抗菌纳米复合材料,研究了其性能。实验表明,表面经过高分子季铵化的纳米SiOx颗粒,在复合材料中不仅起到增强增韧的纳米改性作用,还使材料具备稳定的抗菌功能。与普通PVC材料相比,抗菌纳米复合材料的拉伸强度和冲击强度分别提高了66.3%和124.1%,抗菌率达到了(89±1)%。通过电子探针元素分布面扫描,证明了季铵盐-SiOx颗粒在PVC材料中具有良好的分散性。PVC/Q-SiOx antimicrobial composite was prepared by means of melt blending of PVC with quaternized SiOx nano-meter particles, and the property of the prepared composite was studied. The results showed Q-SiOx nano-meter particles had the synergistic toughening, strengthening and antimicrobial effects on PVC. Compared with common PVC, the tensile strength and impact strength of the composite were increased by 66.3 % and 124.1% respectively, and the microbicidal rate of the composite was up to （89 ± 1） %. The result of the analysis by electric probe with plane element-scanning showed Q-SiOx nano-meter particles dispersed well in PVC.

关 键 词：抗菌 增强增韧 高分子季铵盐 PVC 

分 类 号：TB383.1[一般工业技术—材料科学与工程]