New Hydrophilic PU Resin via A Non-isocyanate Process
博士 === 淡江大學 === 化學學系博士班 === 101 === In this research, a new UV-curable hydrophilic PU resin was obtained through a green, nonisocyanate, three-reaction process: (1) cyclic carbonate (BCC or PPG-DCE) compounds are prepared by inserting carbon dioxide into epoxy resins (DGEBA or PPG-DGE) at atmosphe...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2013
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/14288704962012452255 |
| Summary: | 博士 === 淡江大學 === 化學學系博士班 === 101 === In this research, a new UV-curable hydrophilic PU resin was obtained through a green, nonisocyanate, three-reaction process: (1) cyclic carbonate (BCC or PPG-DCE) compounds are prepared by inserting carbon dioxide into epoxy resins (DGEBA or PPG-DGE) at atmospheric pressure; (2) amino-terminated hydrophilic PUs (NH2-PU) prepolymer are obtained through the ring-opening polymerization of BCC and PPG-DCE utilizing di-functional or tri-functional amino hydrophilic (polyether) compounds such as Jeffamine D-2000 or T-3000; (3) UV-curable acrylate-PU oligomer (UV-PU) are obtained as adducts from the Michael addition of NH2-PU to multi-acrylate-terminated compounds, 3-acryloyloxy-2-hydroxypropyl methacrylate (AHM). We used as ethyl lactate (EL) as a green solvent and a recyclable catalyst as lithium bromide. This is an energy saving and environmental friendly green process toward PU formation.
In this research, UV-PU films are compared to the difference of their properties. Finally all the data of each resulted polyurethane resins with different formulations are evaluated and discussed in this report.
|
|---|