非等温DSC法研究环氧树脂/空心玻璃微珠体系固化动力学
Research on Curing Reaction Kinetics of Epoxy Resin/Hollow Glass Microspheres System by Non-isothermal DSC Method
摘 要
采用非等温差示扫描量热（DSC）法研究了空心玻璃微珠（HGB）填充环氧树脂/4，4'二氨基二苯基甲烷（EP/DDM）体系的固化反应过程，计算了固化体系的动力学参数，确立了固化工艺条件。结果表明：EP/DDM/HGB体系的表观活化能为51.21 kJ·mol-1，反应级数为 0.91；HGB的加入使固化反应的起始温度提前7~12 ℃，峰值温度提前4~6 ℃，并降低了固化体系的反应焓变。
空心玻璃微珠
固化动力学
非等温DSC法
epoxy resin
hollow glass microsphere
curing kinetics
non-isothermal differential scanning calorimetry (DSC) method
Abstract
The curing reaction process of epoxy resin/4,4'-diamino diphenyl methane (EP/DDM) system filled with hollow glass beads (HGB) was tracked by differential scanning calorimetry (DSC) method under non-isothermal condition. The kinetics parameters of the curing system were calculated and the curing process conditions were determined. The results indicate that the apparent activation energy of the EP/DDM/HGB system was 51.21 kJ·mol-1, and the reaction order was 0.91. In contrast with pure epoxy resin, the initial temperature of curing reaction for EP/DDM/HGB system was 7-12 ℃ lower, meanwhile the peak temperature of the curing reaction was 4-6 ℃ lower. And there was also a decline on the reaction enthalpy of EP/DDM/HGB curing system.
中图分类号 TB332 DOI 10.11973/lhjy-wl201704004
所属栏目 试验与研究
基金项目 科技部等中央单位与上海市共同推进重大任务科研专项资助项目（15DZ1203300）
收稿日期 2016/5/4
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备注李想(1991-),男,硕士研究生,从事环氧树脂复合材料的研究.
引用该论文: LI Xiang,LI Xian-hui,MA Ying-qi. Research on Curing Reaction Kinetics of Epoxy Resin/Hollow Glass Microspheres System by Non-isothermal DSC Method[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2017, 53(4): 244～248
李想,李仙会,马颖琦. 非等温DSC法研究环氧树脂/空心玻璃微珠体系固化动力学[J]. 理化检验－物理分册, 2017, 53(4): 244～248
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参考文献
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【2】董新,蔡智奇,皮丕辉,等.环氧树脂/聚酰胺/DDM体系的固化行为及力学性能[J].热固性树脂,2011,26(1):21-24,30.
【3】刘晓宁,张兆峰,庄辛,等.环氧泡沫材料的力学性能及微观结构[J].理化检验-物理分册,2015,51(5):303-306.
【4】杨小华,夏建陵,张燕.EP/改性DDM体系的固化反应动力学及性能研究[J].中国胶粘剂,2011,20(12):1-4.
【5】胡玉明,吴良义.固化剂[M].北京:化学工业出版社,2004.
【6】SAHA M C, NILUFAR S. Nanoclay-reinforced syntactic foams: Flexure and thermal behavior[J]. Polymer Composites, 2010, 31(8): 1332-1342.
【7】张兆峰,柯贤朝.空心陶瓷微珠对环氧泡沫塑料力学性能的影响[J].理化检验-物理分册,2013,49(9):585-588.
【8】李想,李仙会,马颖琦.环氧树脂/空心玻璃微珠泡沫材料性能研究[J].工程塑料应用,2016,44(4):31-34,43.
【9】RATNA D, SIMON G P. Thermomechanical properties and morphology of blends of a hydroxy-functionalized hyperbranched polymer and epoxy resin[J]. Polymer,2001,42(21):8833-8839.
【10】CUNNINGHAM B D, HUANG J, BAIRD D G. Review of materials and processing methods used in the production of bipolar plates for fuel cells[J]. International Materials Reviews,2007,52(1):1-13.
【11】KISSINGER H E. Reaction kinetics in differential thermal analysis[J]. Analytical Chemistry,1957,29(11):1702-1706.
【12】OZAWA T. Kinetic analysis of derivative curves in thermal analysis[J]. Journal of Thermal Analysis,1970,2(3):301-324.
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