不同无机抗菌体系对聚乙烯供水管材抗菌性能的影响  

Effect of Different Inorganic Antimicrobial Systems on Antimicrobial Performance of PE Water Supply Pipes

作　　者：马祥瑞 王伟[1,2] 史颖 MA Xiangrui;WANG Wei;SHI Ying(Advanced Manufacturing Institute of Polymer Industry,Shenyang University of Chemical Technology,Shenyang Liaoning 110142,China;College of Materials Science and Engineering,Shenyang University of Chemical Technology,Shenyang Liaoning 110142,China)

机构地区：[1]沈阳化工大学高分子产业高端制造研究院,辽宁沈阳110142 [2]沈阳化工大学材料科学与工程学院,辽宁沈阳110142

出　　处：《辽宁化工》2024年第5期702-705,709,共5页Liaoning Chemical Industry

摘　　要：采用双螺杆挤出机将聚乙烯(PE100)分别和纳米氧化锌(15 nm粒径和30 nm粒径)、纳米银、纳米二氧化钛进行熔融共混制备出抗菌PE管材料,并测试了抗菌性能、DSC、拉伸性能和冲击性能。结果表明:纳米氧化锌和纳米银的抗菌体系优于二氧化钛的抗菌体系;15 nm ZnO质量分数0.150%的复合材料对大肠杆菌的抗菌率高于99.9%,30 nm ZnO质量分数0.500%的复合材料对大肠杆菌的抗菌率为99.7%,小尺寸的Zn O抗菌剂有更高的抗菌性能;添加了高含量抗菌剂(质量分数1%的Ti O2)复合材料的综合力学性能降低。Antibacterial PE pipe materials were prepared by melt blending polyethylene(PE100)with nano zinc oxide(15 nm particle size and 30 nm particle size),nano silver and nano titanium dioxide,respectively,using a twin-screw extruder.And the antibacterial properties,DSC,tensile properties and impact properties were tested.It was shown that,the antimicrobial system of ZnO nanoparticles and silver nanoparticles was better than that of titanium dioxide;the antimicrobial rate of the composites with 15 nm ZnO of mass fraction 0.150%against Escherichia coli was higher than 99.9%,and the antimicrobial rate of the composites with 30 nm ZnO of mass fraction 0.500%against Escherichia coli was 99.7%,and the small size of ZnO antimicrobial agent had higher antimicrobial performance;the overall mechanical properties of the composites with high content of antimicrobial agent(mass fraction 1%TiO2)were reduced.

关 键 词：PE100 无机抗菌剂 抗菌性能 力学性能 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]