A Study on Linseed Oil Modified Waterborne Polyurethane Coatings
The waterborne polyurethane coatings modified by linseed oil were prepared in a method of ammonolysis. The influence of reaction time and temperature of the linseed oil ammonolysis on structure and properties of the waterborne polyurethane coatings was investigated and discussed. It has been shown in this work that the preferred ammonolysis temperature would be 102~118℃, the reaction time could be about 80 min, and structure of the modified waterborne polyurethane was analysed by FTIR. The touch-dry time of the modified waterborne polyurethane with drier would be shorter than that of non-modified waterborne polyurethane, normally in a week, and the stability of the modified waterborne polyurethane coating in water could stand for 3 months under room temperature. The TGA results of the coatings showed that the weight loss started at about 294℃.
coatings waterborne polyurethane linseed oil ammonolysis
CHEN Jianbing GUO Qiang SUN Jinliang SHAO Xianli NIE Zhijun
School of Materials Science and Engineering, Shanghai University, Shanghai 201800, China Department School of Materials Science and Engineering, Shanghai University, Shanghai 201800, China
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
528-532
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）