A new curing agent for self-curable system of aqueous-based PU dispersion
學年 95
學期 2
出版(發表)日期 2007-04-01
作品名稱 A new curing agent for self-curable system of aqueous-based PU dispersion
作品名稱(其他語言)
著者 Wang, Shih-Chieh; Chen, Po-Cheng; Yeh, Jen-taut; Chen, Kan-nan
單位 淡江大學化學學系
出版者 Elsevier
著錄名稱、卷期、頁數 Reactive and Functional Polymers 67(4), pp.299-311
摘要 Anionic aqueous-based polyurethane (PU) dispersion consists of carboxyl group that served as an internal emulsifier stabilizing aqueous PU dispersion and also a reactive site toward curing agent. A model reaction of a mono-azetidine-containing compound and trimethylacetic acid (TMAA) demonstrated that an amino ester bond formation between azetidine and carboxylic acid. A di-azetidine containing compound (HDDA–AZT) was prepared and served as a curing agent, which was synthesized by a Michael addition reaction of azetidine (AZT) to hexanediol diacrylate (HDDA). Anionic aqueous PU dispersion was treated with HDDA–AZT as a latent curing agent and becoming a self-curable aqueous PU system. A cross-linked PU resin was obtained from this self-curing PU system on drying at ambient temperature. The performance properties of these self-cured PU resins proved that cross-linking behaviors with this new curing agent, HDDA–AZT.
關鍵字 Azetidine;Self-curing;Ring-opening;Aqueous-based PU
語言 en
ISSN 1381-5148
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度
國別 NLD
公開徵稿
出版型式 ,紙本
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