Preparation and properties of bio-based gallic epoxy resin/nano-ZnO antibacterial coating

HOU Gui-xiang; XIE Jian-qiang; YAO Shao-wei; ZHANG Yun-jie; LAN Wen

Cailiao gongcheng (Mar 2020)

Preparation and properties of bio-based gallic epoxy resin/nano-ZnO antibacterial coating

HOU Gui-xiang,
XIE Jian-qiang,
YAO Shao-wei,
ZHANG Yun-jie,
LAN Wen

Affiliations

HOU Gui-xiang: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
XIE Jian-qiang: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
YAO Shao-wei: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
ZHANG Yun-jie: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
LAN Wen: Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China

Journal volume & issue: Vol. 48, no. 3
pp. 34 – 39

Abstract

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Bio-based gallic acid epoxy resin(GAER)was prepared by gallic acid as main raw material. Nano-ZnO surface modification by KH-550 was used to prepare KH550-nano-ZnO. In addition, it was combined with the bio gallic acid epoxy resin(GAER), GAER/KH550-nano-ZnO composite coating was prepared by using succinic anhydride as curing agent. The changes of microstructure before and after modification of nano-ZnO were characterized. The curing process of succinic anhydride/GAER system was studied by differential scanning calorimeter. The effects of the KH550-nano-ZnO content on the mechanical properties, the thermal properties, dynamic mechanical properties and the antibacterial properties of the coating film were tested. The results show that the addition of proper amount of KH550-nano-ZnO can increase the glass transition temperature (Tg) of the system and improve the impact resistance of coating surface. The hardness and thermal stability of the coating are increased and the adhesion is decreased with the increased content of KH550-nano-ZnO. The initial thermal decomposition temperature (T5%) of the composite coating is higher 12.6-15.4℃ than that of pure GAER. When the content of KH550-nano-ZnO is 2%(mass fraction), the Tg is increased by 30.7℃ compared with pure GAER resin. The anti-bacterial rate of the KH550-nano-ZnO/GAER cured coating to Escherichia coli and Staphylococcus aureus reaches 99.99%.

Published in Cailiao gongcheng

ISSN: 1001-4381 (Print)
Publisher: Journal of Materials Engineering
Country of publisher: China
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: http://jme.biam.ac.cn/CN/1001-4381/home.shtml

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