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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/19539

    Title: Introduction of covalently bonded phosphorus into aqueous-based polyurethane system via postcuring reaction
    Authors: Wang, Ta-zen;Chen, Kan-nan
    Contributors: 淡江大學化學學系
    Keywords: aqueous-based PU;reactive phosphorus flame retardant;dual-function curing
    Date: 1999-12-05
    Issue Date: 2009-11-04 16:58:11 (UTC+8)
    Publisher: John Wiley & Sons
    Abstract: Anionic aqueous-based polyurethane (PU) dispersions were derived from a water dispersion process of carboxylic groups containing PU prepolymers together with a neutralization and a chain extension. These PU prepolymers were prepared from a conventional polyaddition of isophorone diisocyanate, polypropylene glycol-1000, and dimethylolpropanic acid. A covalently bonded phosphorus was introduced into PU by a phosporus-containing curing agent. A series of phosphorus and multi-aziridinyl groups containing curing agents were synthesized for this purpose. Each of them served in a dual-function capacity as a postcuring agent for the anionic aqueous-based PU system. The resulting postcured PU exhibited improvements in its mechanical, physical, and thermal properties; furthermore, postcured PU synergistic flame inhibition was also observed due to the presence of nitrogen and phosphorus content in the process.
    Relation: Journal of Applied Polymer Science 74(10), pp.2499-2509
    DOI: 10.1002/(SICI)1097-4628(19991205)74:10<2499::AID-APP19>3.0.CO;2-4
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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