Covalent immobilization of benzalkonium bromide on polyethylene by hyperthermal-hydrogen induced-crosslinking
文献类型： 外文期刊
第一作者： Li, Jieyao
作者： Li, Jieyao;Luo, Wenhan;Liu, Yicun;Guo, Haoqi;Zhang, Xueqin;Xiao, Gengsheng;Xiao, Naiyu;Luo, Wenhan;Han, Zhiqiang;Xiao, Naiyu;Lau, Woon Ming;Han, Zhiqiang;Lau, Woon Ming;Zhang, Dequan
作者机构：
关键词： Polyethylene; Benzalkonium bromide; HHIC; Covalent immobilization; Antibacterial
期刊名称：MATERIALS & DESIGN （ 影响因子：8.4； 五年影响因子：8.6 ）
ISSN： 0264-1275
年卷期： 2023 年 231 卷
页码：
收录情况： SCI
摘要： Covalent immobilization in functional surface modification is a prerequisite for durability and functional -integrity in many applications. This work devises an innovative surface treatment using the hyperthermal-hydrogen induced-crosslinking technique to prepare a long-lasting antibacterial film in which chemical bonds are established between the antibacterial benzalkonium bromide (BB) molecule and polyethylene macromolecule (PE). Briefly, PE film is firstly pretreated by UV-Ozone (UVO) to raise the surface energy of PE for driving adsorption of BB. Then hyperthermal hydrogen bombardment is used to cleave C-H bonds at the interface of PE-BB for accomplishing colvalent immobilization of BB. The chemical structure, morphology, thermal properties, barrier and antimicrobial properties of the resultant BB-grafted-PE (PE-g-BB) films are examined to verify covalent immobilization. Even after 60 min accel-erated labilization test by ultrasound intervention, the modified film maintained excellent microorgan-ism inhibition and antibacterial activity against E. coli and S. aureus with respective R values of 1.6 and 3.0.& COPY; 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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