Design of UV-curable Alicyclic Epoxy Resin System and Optimization of Its Response Surface
XU Zhipeng1, JI Jingru2, LIU Yuhong2,*, QIANG Junfeng1,*
1 College of Material Science and Engineering,Xi'an University of Science and Technology, Xi'an 710000, China 2 School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710000, China
Abstract: In order to clarify the effects of the type and dosage of photosensitizer on the curing properties, light transmittance and mechanical properties of 3, 4-epoxy cyclohexylmethyl-3, 4-epoxy cyclohexylformate (TTA-21) of aliphatic group epoxy resin, differential scanning calorimetry (DSC) and UV-visible photometer were used to investigate the effects of 2-isopropylthioxanone (ITX), benzoin dimethyl ether (BDK), 1-hydroxycyclohexylphenone (184) and their dosages on the diluent of atyclic epoxy resin TTA-21 (4-vinyl epoxy cyclohexane). Effect of triphenylhexafluoroantimonate as photoinitiator on curing degree and light transmittance of films.On this basis, the effects of bis(3,4-epoxycyclohexylmethyl) adipate (TTA-26) and trimethylolpropane triglycidyl ether (TPEG) on the TTA-21 cured film were further analyzed. The law of tensile strength. The Box-Behnken response surface analysis method was used to optimize the content of TTA-26, TPEG and diluent in the system. Research shows that when the photosensitizer BDK is 1% in the cycloaliphatic epoxy resin system, the film curing rate can reach 98.12%, and the light transmittance can reach more than 86%. When the addition amount of TPEG and TTA-26 is 20%, the tensile strength and elongation at break are 46.80 MPa and 42.78 MPa, respectively, and 11.2% and 13.7%, respectively. When the amount of diluent is 30%, the tensile strength of the cured film can reach the highest value of 57.14 MPa. The order of the influence of each response factor on tensile strength is diluent (C)>TTA-26 (A)> TPEG (B); The optimized process by response surface methodology is TTA-26 addition amount 24.75%, TPEG addition the amount is 20.65%, and the amount of diluent is 18.70%. Under these conditions, the tensile strength of the cured film can reach 58.97 MPa.
许智鹏, 吉静茹, 刘育红, 强军锋. UV固化脂环族环氧树脂体系的设计及其响应面优化[J]. 材料导报, 2021, 35(14): 14190-14197.
XU Zhipeng, JI Jingru, LIU Yuhong, QIANG Junfeng. Design of UV-curable Alicyclic Epoxy Resin System and Optimization of Its Response Surface. Materials Reports, 2021, 35(14): 14190-14197.
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2021, Vol. 35 
