新型复合抗菌剂在PA6切片上的应用  

Application of Novel Composite Antibacterial Agent on PA6 Chips

作　　者：赵献峰 高成凤 智良 ZHAO Xian-feng;GAO Cheng-feng;ZHI Liang(Yangmei Group Taiyuan New Chemical Materials Co.,Ltd.,Taiyuan 030021,China;Dalian Plastics Research Institute Co.,Ltd.,Dalian 116033,China)

机构地区：[1]阳煤集团太原化工新材料有限公司,山西太原030021 [2]大连塑料研究所有限公司,辽宁大连116033

出　　处：《塑料科技》2020年第11期108-111,共4页Plastics Science and Technology

摘　　要：制备壳聚糖-银/铜(CA/C)和壳聚糖-银/二氧化钛(CA/T)两种新型复合抗菌剂,并将CA/T复合抗菌剂与尼龙6(PA6)共混制备抗菌PA6切片。采用SEM、XRD、FTIR、UV-Vis等对抗菌剂和抗菌切片进行了化学元素和结构的分析;采用抑菌环和振荡烧瓶实验分别对抗菌剂和抗菌切片进行抗菌性能测试。结果表明:CA/T复合抗菌剂与CA/C复合抗菌剂均产生纳米级粒子,由于存在银-铜和银-二氧化钛的协同抗菌效应,新型复合抗菌剂的抗菌性能更佳。其中CA/T复合抗菌剂的抗菌性能更高效,性价比也更高。PA6切片经CA/T复合抗菌剂改性后,有效抗菌成分在PA6基体中分布均匀,相容性较好,拥有永久性的抗菌性能,实验发现CA/T含量为4%时,抗菌率达到90%以上,具有良好的工业生产前景。We firstly prepared Chitosan-Ag/Copper(CA/C)composite antibacterial agent and Chitosan-Ag/TiO2(CA/T)composite antibacterial agent separately.Antibacterial PA6 chips were prepared by blending CA/T composite antibacterial agent with PA6.Secondly,the surface morphology and chemical structure of composite antibacterial agents and antibacterial chips were analyzed by using SEM,XRD and FTIR UV-Vis.The antibacterial properties of the composite antibacterial agents and antibacterial chips were investigated by bacteriostatic ring and shake flask.The results show that both CA/T and CA/C composite antibacterial agents produce nano particles.Due to the synergistic antibacterial action of silver-copper and silver-titanium dioxide,the antibacterial properties of the novel composite antibacterial agents were better.Among them,the antibacterial performance of CA/T composite antibacterial agent is more efficient and the performance price ratio is also higher.After modified by CA/T composite antibacterial agent,the effective antibacterial components in PA6 matrix are evenly distributed,with good compatibility and permanent antibacterial properties.When the content of CA/T is 4%,the antibacterial rate reaches more than 90%,which has a good prospect of industrial production.

关 键 词：CA/C复合抗菌剂 CA/T复合抗菌剂 PA6 共混改性 

分 类 号：TB34[一般工业技术—材料科学与工程] TQ323.6[化学工程—合成树脂塑料工业]