Effects of ZnO nanoparticles on the mechanical and antibacterial properties of polyurethane coatings

被引：299
|
作者：
Li, J. H. [2 ]
Hong, R. Y. [1 ,2 ,3 ]
Li, M. Y. [4 ]
Li, H. Z. [3 ]
Zheng, Y. [5 ]
Ding, J. [6 ]
机构：
[1] Soochow Univ, Dept Chem Engn, SIP, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China
[2] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
[3] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase React, Beijing 100080, Peoples R China
[4] Soochow Univ, Coll Life Sci, SIP, Suzhou 215123, Peoples R China
[5] Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada
[6] MSC Software, Santa Ana, CA 92707 USA
来源：
PROGRESS IN ORGANIC COATINGS | 2009年 / 64卷 / 04期
基金：
中国国家自然科学基金;
关键词：
ZnO nanoparticles; Polyurethanes; Mechanical property; Abrasion resistance; Antibacterial property; SURFACE MODIFICATION; NANOCOMPOSITES;
D O I：
10.1016/j.porgcoat.2008.08.013
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Polyurethane-based coatings reinforced by ZnO nanoparticles (about 27 nm) were prepared via solution blending. The ZnO/PU films and coats were fabricated by a simple method of solution casting and evaporation. The mechanical properties of the films were investigated by a universal material test, and the abrasion resistance of the prepared coats was evaluated by a pencil-abrasion-resistance tester. It was found that significant improvement of the PU films in Young's modulus and tensile strength was achieved by incorporating ZnO nanoparticles up to 2.0 wt%, and that the abrasion resistance of the PU coats was greatly enhanced due to the addition of ZnO nanoparticles. Moreover, the antibacterial property test was carried out via the agar dilution method and the result indicated that PU films doped with ZnO nanoparticles showed excellent antibacterial activity, especially for Escherichia coli. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：504 / 509
页数：6
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