| 反应型非离子水性环氧乳液的制备及性能 |
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| 引用本文： | 石红义,刘伟区,王政芳,何莎.反应型非离子水性环氧乳液的制备及性能[J].涂料工业,2018,48(12):41-46. |
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| 作者姓名： | 石红义 刘伟区 王政芳 何莎 |
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| 作者单位： | 1. 中国科学院广州化学研究所,广州 5106502. 中国科学院纤维素化学重点实验室,广州 5106503. 中国科学院大学,北京 100049 |
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| 基金项目： | 广州珠江科技新星专项(201610010133);广州市绿色建材化学品重点实验室(201509010019) |
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| 摘 要： | 选用环氧树脂E-51、邻苯二甲酸酐(PA)和聚乙二醇单甲醚(MPEG)为原料,合成了反应型非离子水性环氧树脂乳化剂,然后通过相反转法制备了水性环氧树脂乳液,研究了MPEG相对分子质量乳化剂用量对乳液稳定性和涂膜固化性能的影响。采用红外光谱(FT-IR)对乳化剂进行结构表征,通过透射电镜(TEM)观察了乳液中乳胶粒的形貌及其分布状态。结果表明:当MPEG相对分子质量为2 000,乳化剂用量为10%时,乳液稳定性良好,且制得的水性环氧树脂乳液的涂膜固化物具有优良的涂膜性能,铅笔硬度达2H,柔韧性为2 mm,耐冲击性达50 cm;耐水性优良。
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| 关 键 词： | 水性环氧 乳化剂 相反转 涂膜性能 |
| 收稿时间： | 2018-06-29 |
Properties and Preparation of Reactive Nonionic Waterborne Epoxy Resin Emulsion |
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| Hongyi Shi,Weiqu Liu,Zhengfang Wang,Sha He.Properties and Preparation of Reactive Nonionic Waterborne Epoxy Resin Emulsion[J].Paint & Coatings Industry,2018,48(12):41-46. |
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| Authors: | Hongyi Shi Weiqu Liu Zhengfang Wang Sha He |
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| Affiliation: | Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China Key Laboratory of Cellulose and Lignocellulosics Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China University of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | Reactive nonionic waterborne epoxy resin emulsifier were prepared by epoxy resin E-51,o-Phthalic anhydride(PA) and methoxypolyethylene glycols (MPEG),which was then used to prepare the epoxy resin emulsion by phase inversion process. The stability and curing properties of waterborne epoxy emulsion were discussed. The structure of the emulsifier was characterized by FT-IR. Furthermore, the morphology and distribution of the latex particles were characterized by transmission electron microscope (TEM). The results showed that the emulsion had good stability when the dosage of emulsifier was 10 wt% and the molecular weight of MPEG was 2000. The cured film of the prepared epoxy resin emulsion showed good pencil hardness over 2H, good water resistance and flexibility (2 mm) as well as impact resistance up to 50 cm. |
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| Keywords: | waterborne epoxy emulsifier phase inversion film property |
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