文献类型：期刊文献

英文题名：Surface enrichment and nonleaching antimicrobial performance of polypropylene grafted poly(hexamethylene guanidine) (PP-g-PHMG) in poly (ethylene terephthalate)/PP-g-PHMG

作者：Cao, Wei[1];Wei, Dafu[1];Zheng, Anna[1];Guan, Yong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

年份：2019

卷号：118

起止页码：231

外文期刊名：EUROPEAN POLYMER JOURNAL

收录：;EI(收录号：20192407026031);WOS:【SCI-EXPANDED(收录号:WOS:000483908500027)】；

基金：The authors thank The Key Laboratory of Advanced Polymer Materials of Shanghai (Grant No. ZD20170203) and Shanghai Leading Academic Discipline Project (B502) for funding this work.

语种：英文

外文关键词：Poly(ethylene terephthalate); Antimicrobial performance; Surface enrichment; Poly(hexamethylene guanidine)

摘要：Antimicrobial poly(ethylene terephthalate) (PET) materials are highly demanding in various applications in the industry. However, the combination of large-scale preparation, cost-effective and nonleaching characteristic still remains challenges. Herein, antimicrobial PET materials were prepared by an easy-to-scale-up melting blending between neat PET and polypropylene grafted poly(hexamethylene guanidine) (PP-g-PHMG). Such PET materials exhibited excellent antimicrobial activities, such as above 98.0% and 99.9% of inhibition rates against Escherichia coli and Staphylococcus aureus, respectively. Nonleaching characteristic was confirmed by the inhibition zone test. More importantly, the antimicrobial component enriched on the surfaces of PET materials due to the difference in the compatibility between PET matrix and PP-g-PHMG and the heterogeneous repulsive effect of crystallization. This work provides a facile and easy-to-scale-up way to obtain nonleaching antimicrobial PET.