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涂料工业  2018, Vol. 48 Issue (3): 18-22    https://doi.org/10.12020/j.issn.0253-4312.2018.3.18
  工艺技术 |
水性醇酸树脂的合成及其耐水性的研究
郭欣,陈婉奕,王明权,季永新
南京林业大学化学工程学院,南京 210037
Study on Synthesis of Water-borne Alkyd Resin and Water-resistance Properties
Guo Xin,Chen Wanyi,Wang Mingquan,Ji Yongxin
College of Chemical Engineering,Nanjing Forestry University,Nanjing 210037,China
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摘要 以甘油、亚麻油酸、三羟甲基丙烷、邻苯二甲酸酐,间苯二甲酸及偏苯三酸酐等为原料合成了水性醇酸树脂,通过涂膜性能测试研究了反应温度、反应时间及偏苯三酸酐用量对水性醇酸树脂性能的影响。对比研究了氮丙啶型、硅氧烷型及多碳二亚胺型3种室温固化交联剂对水性醇酸树脂涂膜性能的影响。结果表明:水性化阶段偏苯三酸酐用量为10%,反应时间为1.5 h,反应温度为170 ℃时树脂性能较优。耐水性研究表明:加入硅氧烷型交联剂A后涂膜的耐水性最优,吸水率最低,当用量为6%时,清漆涂膜的硬度、光泽、附着力、耐水性、耐溶剂性均达到预期效果。加入辛酸亚锡后,涂膜在低温高湿环境下,干燥性及耐水性均得到明显改善。
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郭欣
季永新
关键词:  水性醇酸树脂  偏苯三酸酐  耐水性  吸水率  交联剂    
Abstract: A waterborne alkyd resin was synthesized by using glycerol, linoleic acid, trimethylolpropane, phthalic anhydride iso-phthalic acid and trimellitic anhydride as raw materials. The effects of reaction temperature, reaction time and trimellitic anhydride content on the water-resistant property of waterborne alkyd resin were studied. Meanwhile, the effects of different crosslinking agents (e.g., aziridine type, siloxane type and polycarbodiimide type) on the performance of waterborne alkyd coatings were compared. The result showed that the appropriate reaction conditions were as follows: the amount of trimellitic anhydride was 10%, the reaction time was 1 h and the reaction temperature was 170 ℃. By testing and comparing the performances of water-resistant property, it was shown that film cured by siloxane-type crosslinking agent had the best comprehensive properties including film hardness, adhesion, water-resistance, solvent resistance when the amount of agent was 6%. In addition, when the stannous octoate was added, the film exhibited better drying and water-resistant property in the low temperature and high humidity environment.
Key words:  waterborne alkyd resin    trimellitic anhydride    water-resistant property    water absorption    crosslinking agent
收稿日期:  2017-08-10      修回日期:  2017-12-19           出版日期:  2018-03-01      发布日期:  2018-05-23      期的出版日期:  2018-03-01
ZTFLH:  TQ630.4  
基金资助: 江苏高校优势学科建设工程资助项目
通讯作者:  郭欣    E-mail:  1035075633@qq.com
引用本文:    
郭欣, 陈婉奕, 王明权, 季永新. 水性醇酸树脂的合成及其耐水性的研究[J]. 涂料工业, 2018, 48(3): 18-22.
Guo Xin, Chen Wanyi, Wang Mingquan, Ji Yongxin. Study on Synthesis of Water-borne Alkyd Resin and Water-resistance Properties. Paint & Coatings Industry, 2018, 48(3): 18-22.
链接本文:  
http://manu65.magtech.com.cn/Jwk3_tlgy/CN/10.12020/j.issn.0253-4312.2018.3.18  或          http://manu65.magtech.com.cn/Jwk3_tlgy/CN/Y2018/V48/I3/18
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