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    题名: Flame retardation improvement of aqueous-based polyurethane with aziridinyl phosphazene curing system
    作者: Huang, Woei-kae;Yeh, Jen-taut;Chen, Kwei-Ju;Chen, Kan-nan
    贡献者: 淡江大學化學學系
    关键词: aqueous-based polyurethane;aziridinyl phosphazene;curing;flame retardation;cone calorimetry
    日期: 2001-01-24
    上传时间: 2009-11-04 16:57:56 (UTC+8)
    出版者: John Wiley & Sons
    摘要: Aziridinyl phosphazene (NPAZ) was introduced to aqueous-based polyurethane (PU) as a flame retardant and a postcuring agent, mainly because of the presence of phosphorus compositions, as well as the reactive aziridinyl groups on NPAZ. This dual-function NPAZ was prepared from the substitution reaction of hexachlorocyclotriphosphazene with aziridine. Aqueous-based PU was treated with NPAZ and its curing reaction took place upon drying. The performance properties of this NPAZ cured PU (NPAZ-PU) were improved and better than those of the original PU. The phosphorus composition from NPAZ was evenly distributed on this NPAZ-PU film, which was identified by the phosphorus mapping on the energy dispersion spectrum. The physical and mechanical properties of NPAZ-PU were evaluated by the measurements of the gel content, water uptake, ethanol swelling, and tensile stress. The thermal properties of NPAZ-PU were investigated by thermogravimetric analysis (TGA), TG analyzer-interfaced FTIR, and dynamic mechanical thermal analysis. Furthermore, its combustion behaviors were demonstrated with the data of a cone calorimeter measurement.
    關聯: Journal of Applied Polymer Science 79(4), pp.662-673
    DOI: 10.1002/1097-4628(20010124)79:4<662::AID-APP100>3.0.CO;2-T
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文


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