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| 采用磺酸型亲水单体作为扩链剂制备水性聚氨酯的研究 | |
| 引用本文： | 张发兴,卫晓利,张闯.采用磺酸型亲水单体作为扩链剂制备水性聚氨酯的研究[J].中国胶粘剂,2008,17(11). |
| 作者姓名： | 张发兴 卫晓利 张闯 |
| 作者单位： | 1. 四川理工学院材料与化学工程学院,四川自贡,643013 2. 中北大学理学院,山西太原03005l 3. 海军驻泸州地区军事代表工作组,四川泸州,646003 |
| 摘 要： | 以聚醚二元醇(N210)和2,4-甲苯二异氰酸酯(TDI)为原料,以自制的磺酸型亲水单体1,2-二羟基-3-丙磺酸钠(DHPA)作为扩链剂,制备了磺酸型水性聚氨酯(WPU)乳液;研究了R值即R=n(-NCO)/n(-OH)]、DHPA含量对WPU乳液及其胶膜力学性能的影响,并对产物的结构进行了红外光谱(FT-lR)表征.研究结果表明,随着R值的增大,WPU乳液粘度下降,胶膜的拉伸强度和硬度增大、断裂伸长率和吸水率下降;随着DHPA含量的增加,WPU乳液的稳定性逐渐增强、粒径变小且粒径分布变窄,WPU胶膜的拉伸强度增大、断裂伸长率则呈先增后降的趋势;当R=2.0、wDHPA)=5%时,WPU的综合性能最好. |
| 关 键 词： | 磺酸型 水性聚氨酯 乳液 扩链剂 2-二羟基-3-丙磺酸钠 亲水单体 |
Study on preparation of waterborne polyurethane with sulfonic type hydrophilicm onomer as chain extender |
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| ZHANG Fa-xing,WEI Xiao-li,ZHANG Chuang.Study on preparation of waterborne polyurethane with sulfonic type hydrophilicm onomer as chain extender[J].China Adhesives,2008,17(11). | |
| Authors: | ZHANG Fa-xing WEI Xiao-li ZHANG Chuang |
| Affiliation: | ZHANG Fa-xing 1,WEI Xiao-li 2,ZHANG Chuang 3 (1.Department of Material , Chemical Engineering,Sichuan Institute of Technology,Zigong6 43013,China,2.Department of Science,North University of China,Taiyuan 030051,3 .Working Group of Navy Military Representative at Luzhou,Luzhou 646003,China) |
| Abstract: | The waterborne polyurethane(WPU)emulsion with sulfonic was synthesized with polyether di-o l(N210)and 2,4-toluene diisocyanates(TDI)as raw materials,self-made sulfonic type hydrophilic mono-m er 1,2-dihydroxy-3-propanesulfonic acid sodium(DHPA)as chain extender.The effect of R value(name-l y molar ratio between-NCO and-OH)and DHPA content on mechanical properties of WPU emulsiona nd film were studied,and the chemical structure of the product was characterized with FT-IR spectrum.T he research results showed... |
| Keywords: | 1 |
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