稀土铈掺杂纳米氧化锌抗菌聚乙烯的性能研究  

Study on Properties of Antibacterial Polyethylene with Rare Earth Cerium Doped Nano-ZnO

作　　者：李侠[1] 薛涛[2] 何力[2] 曾舒[2] 钟良平[3] 宋治福[1] 

机构地区：[1]贵州大学材料物理研究所,贵州贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014 [3]贵州省纳米材料工程中心,贵州贵阳550002

出　　处：《塑料工业》2006年第8期60-63,共4页China Plastics Industry

基　　金：国家"863计划"资助项目(编号2003AA33X080);贵州省优秀青年科技人才基金资助项目(编号20030319)

摘　　要：以PE为基体树脂,选用自制的Ce4+/ZnO复合抗菌剂,通过熔融共混挤出工艺制备了PE抗菌功能塑料,并对其抗菌活性以及抗菌机理进行了分析与探讨。研究结果表明,掺杂稀土Ce4+明显提高了纳米ZnO的抗菌能力。当抗菌剂粉体的添加量为PE质量的1%时,PE抗菌塑料的性价比达到最佳,具有优异、长效的抗菌性能,其对大肠杆菌和金黄色葡萄球菌的抗菌率均达到97%以上,并且对大肠杆菌的抗菌效果要优于金黄色葡萄球菌。Antimicrobial PE plastics were prepared with PE as matrix resin and self-made Ce^4＋/ZnO compound powders as antimicrobial agents, and the antimicrobial activity and its mechanism of the prepared antimicrobial PE plastics were studied. The results showed that the antimicrobial activity of the nano-meter ZnO was evidently improved by the addition of Ce^4＋ . PE antimicrobial plastics showed high rate of properties to prices by adding 1% antimierobial agents, and had excellent and long-acting antibacterial activities. Their antibacterial rates were all above 97% against Escherichia Coli and Staphylococcus. Aureus, also the antibacterial effect against Escherichia Coli was better than that of Staphylococcus. Aureus.

关 键 词：抗菌剂 稀土 氧化锌 聚乙烯 抗菌性能 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]