The synthesis and properties of UV-curable solventless polyurethane acrylate elastomer

• Main Authors: Shih-Ting Chen, 陳詩婷
• Other Authors: Yeh-Fang Duann
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/92jk7q

碩士 === 國立臺北科技大學 === 化學工程研究所 === 101 === In this study, the synthesis polyurethane acrylate of adding to the polyol、isocyanate and acrylate. Further, physical properties of this UV curable material type, the effects on properties by varying their molar rate of Poly(tetrahydrofuran) (PTMEG) with different molar the Polycarbonatediol (PCDL) were discussed. The samples were completely cured about 20 seconds by UV irradiating. In this study, the was analyzed by using Fourier transfer infrared spectrometers (FTIR), Ｎuclear agnetic resonance spectroscopy (NMR) to identify the structure of polyurethane acrylate. Using Differential scanning calorimetry (DSC), Thermogravimetry analysis (TGA), Gel permeation chromatography (GPC), stress-strain test, and the hardness test to identify the property analysis. The thermal decomposition temperature was low with Polycarbonatediol(PCDL) of polyol ratio more rise because of the more with the weight of the hard segment content (H.S.wt%) and the smaller polar interactions between molecules. As the Polycarbonate diol (PCDL) accounted for more polyol molar ratio, it’s glass transition temperature also increased slightly, its hardness will be higher.