作　　者： ; ; ; ; ; ; (佟会）; (吴远根）;

机构地区： 贵州大学

出　　处： 《中国塑料》 2006年第8期84-86,共3页

摘　　要： 探讨了纳米SiO_2与高相对分子质量季铵盐表面接枝复合抗菌剂在PE-LD中的应用。结果表明,当抗菌剂添加量为基础树脂的3％(质量含量,下同)时,材料对大肠杆菌和金黄色葡萄球菌的抗菌率为99．99％,具有强抗菌效果。抗菌样品放置1a后,抗菌率仍为99．99％；将放置1a后的样品再经过加速老化15d后,抗菌率为97％左右,抗菌长效性好。 A new antimicrobial agent has been studied. In this antimicrobial agent, the nano-SiO2 was combined with high-molecular-weight quaternary ammonium salt first, which was introduced into low density polyethylene （PE-LD） at a weight fraction of 3 %. The antimicrobial activity of the loaded resin achieved 99.99 %, and 99 % of which could be maintained after placed in the natural environment for more than one year. If rinsed in water for fifteen days, the antimicrobial activity reduced to 97 %.

关 键 词： 纳米二氧化硅 高相对分子质量季铵盐 表面接枝 抗菌塑料 低密度聚乙烯

领　　域： [化学工程]