键合聚六亚甲基胍盐酸盐的聚丙烯蜡的制备及其抗菌活性

Modification of Polypropylene Wax by Bonding Polyhexamethylene Guanidine and Its Antimicrobial Activity

摘要: 在Hakke转矩流变仪中，将聚丙烯蜡（PPW）接枝马来酸酐（PPW-g-MAH）与聚六亚甲基胍盐酸盐（PHMG）熔融反应，得到具有抗菌性能的聚丙烯蜡（PPW-g-PHMG）。透射电镜显示PHMG在PPW-g-PHMG上呈纳米尺度均匀分布。将聚丙烯与PPW-g-PHMG混合，混和物（PP/PPW-g-PHMG）的抑菌圈法和贴膜法抗菌性能测试结果显示：样品对大肠杆菌具有优异的抗菌性能。经过提纯后，PP/PPW-g-PHMG没有出现PHMG的溶出，具有非溶出性的、持久的抗菌功能。

Abstract: Antimicrobial polypropylene wax (PPW-g-PHMG) was prepared via melting reaction between polyhexamethylene guanidine (PHMG) and polypropylene wax grafted maleic anhydride in a Hakke torque rheometer. TEM confirmed that PHMG was nano scale uniformly distributed in the PPW-g-PHMG. Antimicrobial results by diffusion method and membrane adhering method showed that the obtained PP/PPW-g-PHMG blends had excellent antimicrobial activity against E.coli. After being purified, PP/PPW-g-PHMG sample was a non leaching antimicrobial material with excellent and durable antimicrobial activity.