改性纳米氟碳涂料的自清洁性与抗菌性  

Self-Cleaning and Antibacterial Activity of Modified Nano-Fluorocarbon Coating

作　　者：王荣民[1] 刘发锐[1] 何玉凤[1] 王博赟[1] 王晓雯[1] 李榕[1] 

机构地区：[1]西北师范大学化学化工学院生态环境相关高分子材料教育部重点实验室甘肃省高分子材料重点实验室,甘肃兰州730070

出　　处：《石油化工》2013年第3期325-329,共5页Petrochemical Technology

基　　金：国家自然科学基金项目(20964002;21263024;21244003);甘肃省科技支撑计划项目(1011GKCA017);甘肃省高等学校研究生导师科研项目(1201-15)

摘　　要：采用3-甲基丙烯酰氧丙基三甲氧基硅烷改性的复合纳米TiO2与氟碳共聚物乳液共混得到改性纳米氟碳乳液,并以该乳液为主要成膜物,与颜填料进行混合制得了改性纳米氟碳涂料。考察了氟碳涂料、纳米氟碳涂料和改性纳米氟碳涂料的常规性能、抗菌性和自清洁性。实验结果表明,3种氟碳乳液的性能均符合合成树脂乳液内墙涂料标准,其中,改性纳米氟碳乳液的固含量最高且成膜温度最低;改性纳米氟碳涂料对葡萄球菌和大肠埃希氏菌的抗菌率可达到99%,且对这2种细菌的抗菌耐久性分别达97%和96%;改性纳米氟碳涂料涂层的吸水量低,疏水性强,具有良好的自清洁性。Modified nano-fluorocarbon emulsion was prepared by blending 3-methacry- oyloxypropyltrimethoxysilane modified composite nano-TiO2 and fuorocarbon copolymer emulsion. Used as a major film former, the modified nano-fluorocarbon emulsion was applied to making modified nano-fluorocarbon coatings by adding pigments and fillings. The conventional performance, antibacterial activity and self-cleaning capacity of the modified nano-fluorocarbon coatings were investigated and compared with those of the fluorocarbon coatings and nano-fluorocarbon coatings. The results indicated that the performances of all three emulsions met the standard of synthetic resin latex for inner wall coatings, whereas the modified nano-fluorocarbon emulsion had the highest solid content and the lowest film forming temperature. The antibacterial rates of the modified nano-fluorocarbon coatings to both Staphylococcus and Escherichia coli reached 99%, and their antibacterial durabilities to Staphylococcus and Escherichia coli were 97% and 96%, respectively. The modified nano-fluorocarbon coating also has low water absorption, strong hydrophobicity and good self-cleaning capacity.

关 键 词：复合纳米二氧化钛 氟碳共聚物乳液 自清洁涂料 抗菌性能 

分 类 号：TQ630.43[化学工程—精细化工]