文献类型：期刊文献

英文题名：Preparation and properties of waterborne polyurethane/epoxy resin composite coating from anionic terpene-based polyol dispersion

作者：Wu, Guo-min[1,2] Kong, Zhen-wu[1,2] Chen, Jian[1] Huo, Shu-ping[1] Liu, Gui-feng[1,2]

第一作者：吴国民

通信作者：Wu, GM[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat,State Forestr, Key & Open Lab Forest Chem Engn,Key Lab Biomass E, Nanjing 210042, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Res Inst New Technol, Beijing 10091, Peoples R China

年份：2014

卷号：77

期号：2

起止页码：315-321

外文期刊名：PROGRESS IN ORGANIC COATINGS

收录：;EI(收录号：20140317195987);Scopus(收录号：2-s2.0-84891752140);WOS:【SCI-EXPANDED(收录号:WOS:000331019500005)】；

基金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (contract grant number: 31100428).

语种：英文

外文关键词：Polyol; Waterborne polyurethane; Epoxy resin; Composite; Terpene

摘要：An anionic polyol (T-PABA) dispersion was prepared by modifying terpene-based epoxy resin with para-aminobenzoic acid. Then T-PABA dispersion was crosslinked with a hexamethylene diisocyanate (HDI) tripolymer to prepare waterborne polyurethane/epoxy resin composite coating. The rheological properties and particle size distribution of the composite system were characterized by rotary rheometer and laser particle size analyzer. The crosslinked composite product has good thermal resistant properties, with glass-transition temperatures (T-g) about 40% and 50% weight loss temperatures (T-d) in the range of 400-420. The smooth and transparent film obtained from the composite product has good flexibility, adhesion, impact strength, antifouling and blocking resistance properties. The impact strength, pencil hardness, water-resistant and thermal-resistant properties of the composite products increased with the molar ratio of isocyanate group to active hydrogen of T-PABA. (C) 2013 Elsevier B.V. All rights reserved.