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现代化工  2021, Vol. 41 Issue (1): 123-127    DOI: 10.16606/j.cnki.issn0253-4320.2021.01.025
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
氟硅复合改性水性聚氨酯的制备及性能研究
左一杰1, 李凤艳1, 蔚红建2, 赵天波3
1. 北京石油化工学院化学工程学院, 北京 102617;
2. 西安近代化学研究所, 陕西 西安 710065;
3. 北京理工大学化学与化工学院, 北京 100081
Preparation of fluorine-silicon complexly modified water-based polyurethane and research on its performance
ZUO Yi-jie1, LI Feng-yan1, YU Hong-jian2, ZHAO Tian-bo3
1. School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;
2. Xi'an Modern Chemistry Research Institute, Xi'an 710065, China;
3. School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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摘要 以聚己二酸-1,4-丁二醇酯二醇(PBA)、异佛尔酮二异氰酸酯(IPDI)为单体,全氟烷基乙基丙烯酸酯和乙烯基三乙氧基硅烷为改性剂,2,2-双羟甲基丙酸(DMPA)为乳化剂,将单体与不同质量分数、质量比为1:1的2种改性剂共聚,并利用三羟甲基丙烷(TMP)作为外交联剂,制备了一系列聚合物乳液。对乳液的粒径、储存稳定性和黏度等进行了测定,对胶膜的耐水性、耐热性、硬度和耐化学品性、断裂面和表面的微观形貌进行了表征。结果表明,DMPA质量分数高于3.3%时,乳液外观、储存稳定性良好;TMP的加入可明显提高胶膜硬度;含氟与含硅基团的引入明显提高了胶膜的耐水性和耐热性,当2种改性剂质量分数为9%、质量比为1:1时,热分解温度较改性前提高了20℃,吸水率为7.7%。
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左一杰
李凤艳
蔚红建
赵天波
关键词:  水性聚氨酯  复合改性  交联剂  耐水性  耐热性    
Abstract: A series of polymer emulsions are prepared by using polyadipate-1,4-butanediol glycol (PBA) and isophorone diisocyanate (IPDI) as monomers,perfluoroalkylethyl acrylate and vinyltriethoxysilane as modifiers,2,2-bismethylolpropionic acid as an emulsifier,and trimethylolpropane (TMP) as a diplomatic agent,through copolymerizing two monomers with two modifiers at different mass fractions and a fixed mass ratio of 1:1.The particle size,storage stability and viscosity of the emulsion are measured,and the water resistance,heat resistance,hardness,and chemical resistance of adhesive film,and the micro-morphology of the fracture facet and surface are characterized.Results show that the appearance and storage stability of the emulsion are good when the DMPA content is higher than 3.3%.The addition of TMP can improve significantly the hardness of the adhesive film,with the maximum hardness being 50.3 HA,while the addition of fluorine- and silicon-containing groups can increase obviously the water resistance and heat resistance.As total mass fraction of two modifiers is 9% and the mass ratio between them is 1:1,thermal decomposition temperature of the film is 20℃ higher than that of the film before modification,and the water absorption reaches 7.7%.
Key words:  water-based polyurethane    composite modification    cross-linking agent    water resistance    heat resistance
收稿日期:  2020-03-10      修回日期:  2020-11-07          
ZTFLH:  TQ633  
基金资助: 国家自然科学基金(11472048)
通讯作者:  李凤艳(1960-),女,博士,教授,主要从事应用化学与精细化学品研究,通讯联系人,lifengyantd@126.com。    E-mail:  lifengyantd@126.com
作者简介:  左一杰(1995-),女,硕士研究生,主要从事化学工程研究,5120130088@bipt.edu.cn
引用本文:    
左一杰, 李凤艳, 蔚红建, 赵天波. 氟硅复合改性水性聚氨酯的制备及性能研究[J]. 现代化工, 2021, 41(1): 123-127.
ZUO Yi-jie, LI Feng-yan, YU Hong-jian, ZHAO Tian-bo. Preparation of fluorine-silicon complexly modified water-based polyurethane and research on its performance. Modern Chemical Industry, 2021, 41(1): 123-127.
链接本文:  
https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2021.01.025  或          https://www.xdhg.com.cn/CN/Y2021/V41/I1/123
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