文献类型：期刊文献

英文题名：Non-leaching antimicrobial biodegradable PBAT films through a facile and novel approach

作者：Wei, Dafu[1,2];Wang, Hao[1];Ziaee, Zainab[1];Chibante, Felipe[1];Zheg, Anna[2];Xiao, Huining[1]

机构：[1]Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada;[2]E China Univ Sci & Technol, Minist Educ, Key Lab Ultrafine Mat, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：58

起止页码：986

外文期刊名：MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS

收录：;EI(收录号：20154001325246);WOS:【SCI-EXPANDED(收录号:WOS:000364247500116)】；

基金：The authors thank the NSERC Sentinel-Bioactive Paper Network, NSERC Green Wood Fiber Network (Canada) and AIF/Al-Pack Co. (Canada) for funding this work.

语种：英文

外文关键词：Biodegradable; PBAT; Guanidine; Antimicrobial activities; Starch

摘要：The antimicrobial thermoplastic starch (ATPS) containing guanidine-based polymers was obtained using a twin-screw extrusion with potato starch and polyhexamethylene guanidine hydrochloride (PHGH). Furthermore, the non-leaching antimicrobial biodegradable poly(butylene adipate-co-terephthalate) (PBAT) was prepared through reactive extrusion with PBAT and ATPS in the presence of the coupling agent, 2,2'-(1,3-phenylene)-bis (2-oxazoline) (PBO)). Finally, the antimicrobial PEAT films were obtained by using a blown film extrusion system. The mechanical properties of the antimicrobial PBAT films varied with the contents of ATPS and thermoplastic starch (TPS). According to the test results of shaking flask method, the prepared antimicrobial PBAT films showed excellent antimicrobial activities (antimicrobial rate >99.99%) and rapid pathogen deactivation efficiency (antimicrobial rate >99.99% even within 15 s of contact time). The water washing and ring diffusion tests demonstrated that the antimicrobial film was a non-leaching product. Inspiringly, the antimicrobial PBAT films with an excellent antimicrobial activity can be obtained even at a very low dosage of PHGH (1.0 mg/g PBAT film). (C) 2015 Elsevier B.V. All rights reserved.