| 丙烯酸酯含量对水性聚氨酯性能的影响 |
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| 引用本文： | 陈建福,张卫英,洪杰,郭玉,罗启涛,李晓.丙烯酸酯含量对水性聚氨酯性能的影响[J].中国涂料,2010,25(9):36-38,43. |
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| 作者姓名： | 陈建福 张卫英 洪杰 郭玉 罗启涛 李晓 |
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| 作者单位： | 1. 福州大学化学化工学院,福州,350108
2. 福建省三棵树涂料股份有限公司,福建莆田,351100 |
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| 基金项目： | 福建省区域科技重大项目 |
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| 摘 要： | 采用无皂种子乳液聚合法,以甲苯二异氰酸酯(TDI)、聚酯多元醇、二羟甲基丙酸(DMPA)和甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)等为主要原料合成丙烯酸酯-水性聚氨酯复合乳液,考察了丙烯酸酯含量对水性聚氨酯乳液粒径、运动黏度、胶膜的耐水性和力学性能的影响。试验结果表明,随着丙烯酸酯含量的增加,复合乳液的粒径增大,运动黏度减小,胶膜的耐水性和拉伸强度提高,但胶膜的断裂伸长率有所降低,适宜的丙烯酸酯用量为40%～50%。
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| 关 键 词： | 水性聚氨酯 丙烯酸酯 改性 乳液 |
Influence of Acrylate Content on Properties of Waterborne Polyurethane |
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| Chen Jianfu,Zhang Weiying,Hong Jie,Guo Yu,Luo Qitao,Li Xiao.Influence of Acrylate Content on Properties of Waterborne Polyurethane[J].China Paint,2010,25(9):36-38,43. |
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| Authors: | Chen Jianfu Zhang Weiying Hong Jie Guo Yu Luo Qitao Li Xiao |
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| Affiliation: | 1.College of Chemistry and Chemical Engineering,Fuzhou University,Fuzhou 350108,Fujian Province Fuzhou University,Fuzhou Fujian 350108,China;2.Fujian Sankeshu Coatings Stock Limited Company,Putian 351100,Fujian Province) |
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| Abstract: | Acrylate resin modifying waterborne polyurethane emulsion is prepared from toluene-2,4-diisocyanate（TDI）,polyester polyol,dimethylolpropanoic acid（DMPA）,methyl methacrylate（MMA） and butyl acrylate（BA） by the method of soap-free seed swelling emulsion polymerization.This paper investigate the influence of acrylate content on the emulsion and film performances including particle size,dynamic viscosity of emulsion,water absorption and mechanical properties.The results show that,with the increase of acrylate content,the particle size increases and the dynamic viscosity decreases,the tensile strength and water resistance of film improves and the elongation at break declines.The suitable acrylate content is 40%～50%. |
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| Keywords: | waterborne polyurethane acrylate modification emulsion |
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