“三明治”型有机/无机复合抗菌涂层在皮革表面的稳定构建

doi:10.19677/j.issn.1004-7964.2023.02.003

Leather Science and Engineering ›› 2023, Vol. 33 ›› Issue (2): 15-20.doi: 10.19677/j.issn.1004-7964.2023.02.003

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

ZHAO Peng¹, LI Kaijun^1,2, CHEN Lei³, LIU Gongyan^1,2,*

1. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China;
2. College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China;
3. Sichuan Leather Research Institute, Chengdu 610081, China

Received:2022-08-31 Published:2023-04-01 Online:2023-03-21

Abstract

Abstract: 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.

Key words: nano silver, chitosan, leather, antibacterial coating, "sandwich" structure

CLC Number:

TS544

ZHAO Peng, LI Kaijun, CHEN Lei, LIU Gongyan. Stable Construction of "Sandwich" Organic/Inorganic Composite Antibacterial Coating on Leather Surface[J]. Leather Science and Engineering, 2023, 33(2): 15-20.

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

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