“三明治”型有机/无机复合抗菌涂层在皮革表面的稳定构建  

Stable Construction of "Sandwich" Organic/Inorganic Composite Antibacterial Coating on Leather Surface

作　　者：赵鹏 李开军 陈磊[3] 刘公岩[1,2] ZHAO Peng;LI Kaijun;CHEN Lei;LIU Gongyan(Key Laboratory of Leather Chemistry and Engineering of Ministry of Education,Sichuan University,Chengdu 610065,China;College of Biomass Science and Engineering,Sichuan University,Chengdu 610065,China;Sichuan Leather Research Institute,Chengdu 610081,China)

机构地区：[1]四川大学皮革化学与工程教育部重点实验室,四川成都610065 [2]四川大学轻工科学与工程学院,四川成都610065 [3]四川省皮革研究所,四川成都610081

出　　处：《皮革科学与工程》2023年第2期15-20,共6页Leather Science and Engineering

基　　金：四川省科技计划资助(2021JDZH0027);四川省科技厅重点研发项目(2021YFG0241);四川大学皮革化学与工程教育部重点实验室开放课题(SCU2021D005)。

摘　　要：服装、皮鞋等革制品已成为人们日常生活的必需品,然而其表面较差的抗菌性容易造成细菌和真菌的繁殖,不仅影响革制品的质量也给消费者健康带来威胁。在本研究中,利用带正电荷的聚乙二醇-接枝-壳聚糖聚合物和带负电荷的没食子酸改性纳米银在皮革表面进行层层组装,稳定构建了一种“三明治”型有机/无机复合抗菌涂层。复合涂层独特的“三明治”结构对大肠杆菌、金黄色葡萄球菌和白色念珠菌都表现出高效的抗菌性;在洗涤30次后,该涂层的抗菌效率仍然能达到90%以上,呈现出优异的耐水洗性和稳定性。该“三明治”型有机/无机复合抗菌涂层有望成为一种理想的皮革表面抗菌涂层。Leather goods, such as leather clothing and leather shoes, have become the daily necessities of people, but the poor antibacterial property of their surfaces is easy to cause the reproduction of bacteria and fungi, which not only affects their quality but also brings a threat to the health of consumers. In this work, a "sandwich" type of organic/inorganic composite antibacterial coating was stably constructed by layer-by-layer assembly of positively charged polyethylene glycol-graft-chitosan polymer and negatively charged gallic acid modified silver nanoparticles on the leather surface. The unique sandwich structure of the composite coating showed high antibacterial activity against Escherichia coli, Staphylococcus aureus and Candida albicans. After 30 times of washing, the antibacterial efficiency of the coating still reached more than 90%, indicating its excellent washable resistance and stability. The results show that the "sandwich" organic/inorganic composite antibacterial coating is expected to be an ideal antibacterial coating for leather surface.

关 键 词：纳米银 壳聚糖 皮革 抗菌涂层 “三明治”结构 

分 类 号：TS544[轻工技术与工程—皮革化学与工程]