文献类型：期刊文献

英文题名：Preparation and Properties of Nonleaching Antimicrobial Linear Low-Density Polyethylene Films

作者：Wang, Hao[1];Wei, Dafu[1,2];Ziaee, Zainab[1];Xiao, Huining[1,3];Zheng, Anna[2];Zhao, Yi[3]

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;[3]North China Elect Power Univ, Sch Environm Sci & Engn, Baoding 071003, Peoples R China

年份：2015

卷号：54

期号：6

起止页码：1824

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20150900574385);WOS:【SCI-EXPANDED(收录号:WOS:000349806600014)】；

基金：The authors thank the NSERC Sentinel-Bioactive Paper Network (Canada), NSERC Green Wood Fiber Network (Canada), AIF/Al-Pack Co. (Canada), and NSF China (Grant 51379077) for funding this work.

语种：英文

外文关键词：Linear low density polyethylenes - Escherichia coli - Film preparation - Scanning electron microscopy - Plastic films - Starch

摘要：Antimicrobial packaging films have been widely used in various applications. However, because of concerns regarding safe food and consumer demands for preservative-free products, the antimicrobial agents applied to packaging have to be highly effective and the leaching effect is not allowed. In the present work, the antimicrobial agent polyhexamethylene guanidine hydrochloride was compounded with starch to prepare antimicrobial thermoplastic starch (ATPS). ATPS was then melt-blended with linear low-density polyethylene (LLDPE) to prepare the novel antimicrobial packaging film. The resultant LLDPE/ATPS films exhibited excellent antimicrobial properties against Escherichia coli in the shaking-flask test. The ring-diffusion test further confirmed the nonleaching effect of the films. However, the addition of ATPS decreased the crystallinity of LLDPE. Both rheological analysis and scanning electron microscopy images indicated that a high ATPS content might result in poor compatibility even in the presence of a compatibilizer.