文献类型：期刊文献

英文题名：Preparation of a fast water-based UV cured polyurethane-acrylate wood coating and the effect of coating amount on the surface properties of oak (Quercus alba L.)

作者：Wang, Jin[1,2] Wu, Huagui[3] Liu, Ru[3] Long, Ling[1,3] Xu, Jianfeng[1,3] Chen, Minggui[4] Qiu, Hongyun[3]

第一作者：Wang, Jin

通信作者：Long, Ling|[a000516e73fe511e91ed2]龙玲;

机构：[1] Research Institute of Forestry New Technology, Chinese Academy of Forestry, Haidian, Beijing, 100091, China; [2] Kingdecor [Zhejiang] Co., Ltd., Quzhou, 324000, China; [3] Research Institute of Wood Industry, Chinese Academy of Forestry, Haidian, Beijing, 100091, China; [4] Jiangsu Himonia Technology Co., Ltd., Jurong, 212400, China

年份：2019

卷号：11

期号：9

外文期刊名：Polymers

收录：EI(收录号：20193707423000);Scopus(收录号：2-s2.0-85071911384)

语种：英文

外文关键词：Adhesion - Building materials - Curing - Hardness - Polyurethanes - Surface properties - Wood

摘要：A fast water-based ultraviolet light (UV) curing polyurethane-acrylate (PUA) wood coating was prepared in the laboratory, and applied on oak (Quercus alba L.) at different coating amounts. The PUA wood coating can be fast cured within 22 min, which highly improved the drying speed compared to normal water-based wood coatings (often higher than 35 min). The coating amounts affected the coating properties after curing on oak. With the increase of coating amount, the adhesion, hardness and gloss value of surface increased to different extents. Meanwhile, the surface of sample became smooth gradually because the voids of the oak were filled. Thus, higher coating amount resulted in better coating properties. However, no significant increase of penetration depth was found. During curing, the hydroxyl groups of the wood reacted with the coating. The optimal parameter in this study was the coating amount of 120 g/m2, where the adhesion reached 1 (with 0-5% cross-cut area of flaking along the edges), with the hardness of 2H and the gloss of 92.56°, which met the requirement of Chinese standard GB/T 18103-2013, and could be used for engineered wood flooring. ? 2019 by the authors.