| 非离子改性可水分散多异氰酸酯的制备与性能 |
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| 引用本文： | 纪凤龙,王秋娣,李国荣,涂伟萍,刘其海,谢亦富,黄佩坚. 非离子改性可水分散多异氰酸酯的制备与性能[J]. 广东化工, 2013, 0(23): 42-43,41 |
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| 作者姓名： | 纪凤龙 王秋娣 李国荣 涂伟萍 刘其海 谢亦富 黄佩坚 |
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| 作者单位： | [1]广州秀珀化工股份有限公司广东广州511495;华南理工大学化学与化工学院,广东广州510641 [2]广州秀珀化工股份有限公司,广东广州511495 |
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| 基金项目： | 广东省科技计划项目（2012B050100008）资助项目 |
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| 摘 要： | 采用聚乙二醇单甲醚（MPEG）对脂肪族多异氰酸酯进行亲水改性,研究了MPEG的分子量、用量和合成工艺对可水分散多异氰酸酯同化剂的异氰酸酯（NCO）基团含量、粘度、水分散性及其对双组分水性聚氯酯涂料性能的影响.比较了形成氨基甲酸酯和形成脲基甲酸酯的改性路线的特点.
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| 关 键 词： | 可水分散性 多异氰酸酯 双组分水性聚氨酯 |
Investigation on the Synthesis and Properties of the Water-dispersible Polyisocyanates Modified by Methoxypolyethylene Glycols |
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| Ji Fenglong,Wang QiudiI,Li Guorong,.,Tu Weiping,.,Liu Qihai,Xie Yiful,Huang Peijian. Investigation on the Synthesis and Properties of the Water-dispersible Polyisocyanates Modified by Methoxypolyethylene Glycols[J]. Guangdong Chemical Industry, 2013, 0(23): 42-43,41 |
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| Authors: | Ji Fenglong Wang QiudiI Li Guorong . Tu Weiping . Liu Qihai Xie Yiful Huang Peijian |
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| Affiliation: | l (1 Guangzhou SUPE Chemical Ltd.,Co., Guangzhou 511495： 2. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou51064 I, China) |
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| Abstract: | The methoxypolyethylene glycols （MPEG） were employed to modify aliphatic polyisocyanates. The influences of the molecular weight and amount of MPEG and different synthesis processes on the content of isocyanate （NCO） groups, viscosity, water dispersibility of the resultant modified potyisocyanates and the properties of two-component water-borne polyurethane coatings were investigated. The water dispersible polyisocyanates bearing urethane groups and those containing allophanate groups were compared. |
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| Keywords: | water dispersible polyisocyanate~ two-componentwater-bomepolyurethanes |
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