文献类型：期刊文献

英文题名：Preparation and properties of maleopimaric acid-based polyester polyol dispersion for two-component waterborne polyurethane coating

作者：Si, Hongyan[1] Liu, He[1] Shang, Shibin[1,2] Song, Jie[3] Liao, Shengliang[1] Wang, Dan[1,2] Song, Zhanqian[1,2]

第一作者：Si, Hongyan

通信作者：Shang, SB[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Key Lab Biomass Energy & Mat,State Forestry Adm, Natl Engn Lab Biomass Chem Utilizat,Key & Lab For, Nanjing 210042, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Inst New Technol Forestry, Beijing 100091, Peoples R China;[3]Univ Michigan, Dept Chem & Biochem, Flint, MI 48502 USA

年份：2016

卷号：90

起止页码：309-316

外文期刊名：PROGRESS IN ORGANIC COATINGS

收录：;EI(收录号：20155201732766);Scopus(收录号：2-s2.0-84951799130);WOS:【SCI-EXPANDED(收录号:WOS:000367108200033)】；

基金：This work was supported by the Joint Funds of the National Natural Science Foundation of China and Yunnan Provincial Government (No. U1202265).

语种：英文

外文关键词：Rosin; Maleopimaric acid; Polyester polyol dispersion; 2K-WPU coating

摘要：An anionic polyol (MPP) dispersion was prepared by introducing maleopimaric acid (MPA) into polyester polyol chain through esterification reaction. The influences of catalyst content, molar ratio of alcohol to acid, 5-sulfoisophtalic acid sodium salt (5-SSIPA) content and MPA content on particle size, stability and rheological property of MPP dispersion were investigated. The optimized conditions for the synthesis of stable MPP dispersion were identified as 1 wt% catalyst content, 1.4:1 molar ratio of alcohol to acid, 2.86 wt% 5-SSIPA content, and 15 wt% MPA content. The MPP dispersion was then applied to the preparation of a novel maleopimaric acid-based two-component waterborne polyurethane (2K-WPU) coating. Incorporating MPA into MPP dispersion leaded to the maleopimaric acid-based 2K-WPU coating with improved tensile strength, gloss, pencil hardness, water resistance and ethanol resistance. The results suggested that MPP dispersion provided a potential application in the field of 2K-WPU coating. (C) 2015 Elsevier B.V. All rights reserved.