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涂料工业  2018, Vol. 48 Issue (3): 6-12    https://doi.org/10.12020/j.issn.0253-4312.2018.3.6
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有机氟硅共改性水性聚氨酯乳液的合成及其性能
王贺之1,2,侯彩英1,2,马国章1,2,王少辉1,2,吉轩2
1. 太原理工大学化学化工学院,太原 030024; 2. 涂装高分子功能材料山西省重点实验室,山西省应用化学研究所,太原 030027
Synthesis and Properties of Organofluorine and Silicon Modified Waterborne Polyurethane Emulsions
Wang Hezhi1,2, Hou Caiying1,2, Ma Guozhang1,2, Wang Shaohui1,2,Ji Xuan2
1. College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2. Shanxi Key Laboratory for Functional Polymers of Coatings, Shanxi Research Institute of Applied Chemistry, Taiyuan 030027, China
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摘要 将异佛尔酮二胺(IPDA)和甲基丙烯酸十二氟庚酯(DFMA)进行Micheal加成反应,合成端仲胺基的有机氟化合物(DFMA-IPDA)。以该化合物为扩链剂、聚醚改性聚二甲基硅氧烷(PDMS)为二元醇,与异佛尔酮二异氰酸酯(IPDI)、聚氧化丙烯二醇(PPG)、二羟甲基丙酸(DMPA)聚合制备了有机氟和硅改性的水性聚氨酯(WPU),研究了有机氟和/或硅用量对WPU乳液性能和胶膜性能的影响。结果表明:用该方法合成的DFMA-IPDA纯度达99.2%,和一定量的PDMS共改性可合成稳定的WPU乳液。随两者用量的增加,WPU乳液的平均粒径增大,胶膜的热稳定性、耐水性提高,表面水接触角增大。PDMS可提高WPU胶膜的柔性,而DFMA-IPDA可提高胶膜的韧性。用PDMS和DFMA-IPDA共改性能获得综合性能优异的WPU,当扩链剂完全采用DFMA-IPDA,PDMS用量为4%时,WPU胶膜的吸水率为4.5%,水接触角达到102.3°。
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王贺之
侯彩英
马国章
吉轩
关键词:  有机氟  聚硅氧烷  水性聚氨酯  扩链剂    
Abstract: A secondary amine-terminated fluorocarbon compound (DFMA-IPDA) was synthesized via Michael addition reaction between dodecafluoroheptyl methacrylate (DFMA) and isophorone diamine (IPDA). The compounds was used as chain extender and/or hydroxyethoxypropyl-terminated polydimethylsiloxane (PDMS) was used as diol to polycondensation with isophorone diisocyanate (IPDI), polypropylene glycol (PPG) and dimethylolpropionic acid (DMPA) to synthesize organofluorine and silicon modified waterborne polyurethane (WPU). The effects of organofluorine and silicon on the properties of WPU emulsions and films were investigated. The results show that the purity of DFMA-IPDA was 99.2%, which can used for preparation of stable WPU emulsions with certain amount of PDMS. As the amount of PDMS and/or DFMA-IPDA increased, the average particle size of the emulsions increased and the thermostability, water resistance and surface water contact angle of the resultant films was also improved. PDMS modification led to an increase in the flexibility of the films, whereas the DFMA-IPDA modification can improve their toughness. Thus, PDMS and DFMA-IPDA co-modified WPU behaved excellent comprehensive properties. When DFMA-IPDA was used as extender and the amount of PDMS was 4 wt%, the water absorption rate of the film of WPU was 4.5% and their water contact angle was 102°.
Key words:  organofluorine; polysiloxane; waterborne polyurethane    chain extender
收稿日期:  2017-08-31      修回日期:  2018-01-24           出版日期:  2018-03-01      发布日期:  2018-05-23      期的出版日期:  2018-03-01
ZTFLH:  TQ323.8  
基金资助: 山西省国际科技合作基金;山西自然科学基金;科技部中小企业技术创新基金
通讯作者:  侯彩英    E-mail:  caiyhou@sina.com
引用本文:    
王贺之, 侯彩英, 马国章, 王少辉, 吉轩. 有机氟硅共改性水性聚氨酯乳液的合成及其性能[J]. 涂料工业, 2018, 48(3): 6-12.
Wang Hezhi, Hou Caiying, Ma Guozhang, Wang Shaohui, Ji Xuan. Synthesis and Properties of Organofluorine and Silicon Modified Waterborne Polyurethane Emulsions. Paint & Coatings Industry, 2018, 48(3): 6-12.
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http://manu65.magtech.com.cn/Jwk3_tlgy/CN/10.12020/j.issn.0253-4312.2018.3.6  或          http://manu65.magtech.com.cn/Jwk3_tlgy/CN/Y2018/V48/I3/6
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