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    题名: Single component self-curable aqueous-based PU system with new aziridinyl curing agent
    作者: Lai, Jian-zei;Chang, Yu-Ching;Yeh, Jen-taut;Chen, Kan-nan
    贡献者: 淡江大學化學學系
    关键词: self-curing;aqueous-based PU;aziridinyl curing agent
    日期: 2004-02-05
    上传时间: 2009-11-04 16:55:00 (UTC+8)
    出版者: John Wiley & Sons
    摘要: The self-emulsified aqueous-based polyurethane (PU) consists of carboxyl group, which is an ionic center not only stabilizing the aqueous polymer dispersion but also serving as the curing site toward aziridinyl curing agent. Two new aziridinyl curing agents, HDI-AZ and ADA-AZ, are prepared from an addition reaction of aziridine to hexamethylene diisocyanate (HDI) and adipic acyl chloride (ADA), respectively. These curing agents are added separately into NCO-terminated PU prepolymer before or after the water dispersion process. The resulting PU dispersion becomes a single component self-curable aqueous-based PU system. The cured PU is obtained from this single component PU dispersion on drying at ambient temperature. The improved PU properties demonstrate the feasibility of this convenient single component self-curable aqueous-based PU system.
    關聯: Journal of Applied Polymer Science 91(3), pp.1997-2007
    DOI: 10.1002/app.13363
    显示于类别:[化學學系暨研究所] 期刊論文

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