文章摘要
郭欣,季永新.环氧改性水性醇酸树脂的制备及其性能[J].精细化工,2019,36(4):
环氧改性水性醇酸树脂的制备及其性能
Synthesis and properties of epoxy modified water-alkyd resin
投稿时间:2018-04-13  修订日期:2018-12-19
DOI:
中文关键词: 环氧酯、水性醇酸树脂、耐水性、热稳定性
英文关键词: epoxy-ester  water-borne alkyd resin  water-resistance properties  thermo stability
基金项目:
作者单位E-mail
郭欣 南京林业大学 1035075633@qq.com 
季永新 南京林业大学 183741552@qq.com 
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中文摘要:
      将亚麻油酸与环氧树脂E-51进行开环反应制得环氧酯,后将其替代部分多元醇参与水性醇酸树脂的制备,并利用红外光谱对产物结构进行表征。重点研究了环氧酯的合成工艺,并深入探讨了环氧酯用量对树脂及其漆膜各项性能的影响。研究表明:环氧酯最优合成工艺为反应温度110℃,反应时间4h,四丁基溴化铵用量8‰,酸值合格为13.3mgKOH?g-1;当环氧酯用量为10%时,树脂及其漆膜的综合性能最优,且TG测试表明环氧改性后水性醇酸树脂漆膜的热稳定性得到明显改善。
英文摘要:
      The epoxy esters was prepared by linoleic acid and epoxy resin E-51 after ring-opening reaction, then using it to replace part of the polyols involved in the reaction. After neutralization with amine, an epoxy modified water-alkyd resin was prepared. The structure of the product was investigated characterized by FTIR. We discussed the synthesis process of epoxy esters, and in-depth analysis of the epoxy ester dosage on the performance of the resin and its film. The results showed that the epoxy ester was obtained under the condition as followed: reaction temperature 110 ?C, reaction time 4h, tetrabutylammonium bromide dosage 8‰, acid value 13.3 mgKOH?g-1. When the epoxy ester content was 10%, the overall performance of the resin and the paint film was optimal, and the thermal stability of the waterborne alkyd resin paint film after epoxy modification was significantly improved.
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