扩链剂ADR对PLA/Nano-ZnO/CCA纳米复合抗菌材料的影响  

Influence of ADR on Properties of PLA/Nano-ZnO/CCA Antibacterial Nanocomposites

作　　者：樊卫华[1,2] 张悦[2] 张臻臻[2] 赵月[2] 刘玉坤[2] 赵坤[1] 陈金周[2] Fan Weihua;Zhang Yue;Zhang Zhenzhen;Zhao Yue;Liu Yukun;Zhao Kun;Chen Jinzhou(The Nurseing College of Zhengzhou University, Zhengzhou 450001, China;College of Material Science and Engineering,Zhengzhou University, Zhengzhou 450001, China)

机构地区：[1]郑州大学护理学院,郑州450001 [2]郑州大学材料科学与工程学院,郑州450001

出　　处：《工程塑料应用》2016年第10期126-129,共4页Engineering Plastics Application

基　　金：河南省科技攻关项目(142102210606)

摘　　要：将环氧系扩链剂ADR添加到聚乳酸(PLA)／Nano-ZnO／叶绿素铜酸(CCA)纳米复合抗菌材料中，研究了ADR添加量对复合材料抗菌性能和力学性能的影响。结果表明，在ADR质量分数为0%～1.0%范围内，随ADR含量的增多，复合材料对大肠杆菌的抗菌性能略有减弱，其缺口冲击强度有较大幅度的增加，弯曲强度、拉伸强度略有增加，断裂伸长率先增大后减小，ADR质量分数小于1.0%时仍属强抗菌材料。当ADR质量分数为1.0%时复合材料的综合性能较好，其抗菌率为99.4%，拉伸强度、断裂伸长率、缺口冲击强度、弯曲强度分别比PLA／Nano-ZnO／CCA复合材料提高了4.6%，11.6倍、71.4%，4.8%。The epoxy chain extender ADR was added into ploylactic acid (PLA)/nano-ZnO/chlorophyll copper acid (CCA) nanocomposites,and the effects of ADR contents on the antibacterial effects and machanical properties were researched. The results indicate that at the ADR content of 0%～1.0%,the antibacterial effects of the nanocomposites against bacterium coli gradually decrease slightly with the increasing of ADR content,and the notched impact strength increases significantly,the tensile strength and bending strength increase slightly,and the elongation at break first increases and then decreases,but they are still strong antibacterial materials when the ADR content is below 1.0%. The comprehensive properties of the composite are best while the content of ADR is 1.0%,the antibacterial rate against E coli of the nanocomposite is 99.4%, the tensile strength,the rupture elongation,the notched impact strength and the bending strength are improved by 4.6%,1160%,71.4%,4.8% respectively.

关 键 词：聚乳酸 环氧系扩链剂 抗菌性能 力学性能 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]