A Comparison of the Performance of Two Kinds of Waterborne Coatings on Bamboo and Bamboo Scrimber

Coatings

Yonghao Ni¹  Ling Long²  Jianfeng Xu²  Ru Liu²  Huagui Wu²  Hongyun Qiu²  Yanglun Yu² 

[1] Department of Chemical Engineering, University of New Brunswick, Fredericton NB E3B 5A3, Canada;Research Institute of Wood Industry, Chinese Academy of Forestry, Haidian, Beijing 100091, China;

关键词: bamboo scrimber;    coating performance;    waterborne coating;    polyurethane acrylate;    epoxy resin;   

DOI  :  10.3390/coatings9030161

来源: DOAJ

【 摘 要 】

For this paper, two kinds of waterborne coatings, polyurethane acrylate (PUA) and epoxy resin, were synthesized and then coated onto neat bamboo and bamboo scrimber (BS), respectively. The coating performance of the samples was investigated. The results showed that, for the two kinds of coatings, there was a chemical reaction occurring between both coatings and the substrates. The permeability with respect to bamboo was higher than that of BS, while that of the epoxy resin coating was better than PUA. However, the PUA film was smoother than epoxy resin. The epoxy resin coating on bamboo had the best adhesion, which was at a 1 level. The abrasion values of the four samples varied in the same substrate. A higher hardness of the coating film was obtained when coated with PUA. In general, the coating performance of bamboo scrimber was poorer than that of bamboo, either coated with PUA or epoxy resin. The epoxy resin had a better coating performance than PUA.

【 授权许可】

Unknown