Flame retardation improvement of aqueous-based polyurethane with aziridinyl phosphazene curing system
出版日期:2001-01-24 00:00:00
著者:Huang, Woei-kae; Yeh, Jen-taut; Chen, Kwei-Ju; Chen, Kan-nan
單位:淡江大學化學學系
出版者:John Wiley & Sons
著錄名稱、卷期、頁數:Journal of Applied Polymer Science 79(4), pp.662-673
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.
語言:en
ISSN:0021-8995
期刊性質:國內
審稿制度:否
國別:TWN
出版型式:電子版