天然大分子抗菌剂对聚丙烯性能的影响  

Effect of Natural Macromolecular Antibacterial Agent on Properties of Polypropylene

作　　者：张卉 黎剑浩 邵辉 王占 Zhang Hui;Li Jianhao;Shao Hui;Wang Zhan(CNOOC(Qingdao)Heavy Oil Processing Engineering Research Center Co.,Ltd.,Qingdao,Shandong,266500;CNOOC(Beijing)Institute of Chemicals and Advanced Materials,Beijing,102209)

机构地区：[1]中海油(青岛)重质油加工工程技术研究中心有限公司,山东青岛266500 [2]中海油化工与新材料科学研究院(北京)有限公司,北京102209

出　　处：《现代塑料加工应用》2023年第2期27-30,共4页Modern Plastics Processing and Applications

基　　金：中海油化工与新材料科学研究院科研项目(LHYJY202103)。

摘　　要：采用双螺杆挤出机将天然大分子抗菌剂ε-聚赖氨酸盐酸盐(ε-PLH)与聚丙烯(PP)熔融共混,制备抗菌PP材料,研究了其力学性能和抗菌性能。结果表明:与纯PP相比,当ε-PLH质量分数为0.10%时,抗菌PP材料的拉伸强度增大近20 MPa、断裂伸长率增大了2.0个百分点、缺口冲击强度增大了53 kJ/m^(2),力学性能显著提升;当ε-PLH质量分数为0.30%时,PP材料对大肠杆菌和金黄色葡萄球菌的抗菌率均超过99.99%,且抗菌持久性超过4000 h。The natural macromolecular antibacterial agentε-polylysine hydrochloride(ε-PLH)was melt blended with polypropylene(PP)by twin-screw extruder,and the antibacterial PP material was prepared,and its mechanical properties and antibacterial properties were studied.The results show that when the mass fraction ofε-PLH is 0.10%,the tensile strength of antibacterial PP increases by nearly 20 MPa,the elongation at break increases by 2.0 percentage points,the notch impact strength increases by 53 kJ/m^(2),the mechanical properties are significantly improved,compared with pure PP.When the mass fraction ofε-PLH is 0.30%,the antibacterial rate of PP material to escherichia coli and staphylococcus aureus are more than 99.99%,and the antibacterial persistence is more than 4000 h.

关 键 词：聚丙烯 天然抗菌剂 ε-聚赖氨酸盐酸盐 力学性能 抗菌性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]