详细信息
桐油聚酰亚胺酸酐/环氧固化体系动力学模型研究 被引量:2
Research of kinetic model of tung oil polyimide anhydride/epoxy curing system
文献类型:期刊文献
中文题名:桐油聚酰亚胺酸酐/环氧固化体系动力学模型研究
英文题名:Research of kinetic model of tung oil polyimide anhydride/epoxy curing system
作者:胡芳芳[1] 聂小安[1,2] 黄金瑞[1] 王义刚[1]
第一作者:胡芳芳
机构:[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源利用与材料重点实验室,江苏南京210042;[2]中国林业科学研究院林业新技术研究所,北京100091
年份:2018
卷号:33
期号:6
起止页码:7-15
中文期刊名:热固性树脂
外文期刊名:Thermosetting Resin
收录:CSTPCD;;北大核心:【北大核心2017】;CSCD:【CSCD2017_2018】;
基金:国家重点研发计划(2017YFD0601304);江苏省青年基金(BK20150073);中国林业科学研究院青年基金(CAFYBB2016QA012);江苏省生物质能源与材料重点实验室基本科研业务费(JSBEM-S-201703)
语种:中文
中文关键词:桐油聚酰亚胺酸酐;桐油酸酐;固化反应动力学;拉伸强度;弯曲强度;压缩强度;玻璃化转变温度;热稳定性
外文关键词:tung oil polyimide anhydride;tung oil anhydride;curing reaction kinetics;tensile strength; flexural strength; compressive strength;glass transition temperature;thermal stability
分类号:TQ314.24;TQ323.5
摘要:通过示差扫描量热分析和热重分析以及力学性能测试研究了环氧树脂与自制的N,N-间苯撑双马来酰亚胺型桐油聚酰亚胺酸酐(HVAT酸酐)与N,N-4,4-二苯甲烷双马来酰亚胺型桐油聚酰亚胺酸酐(BMIT酸酐)固化体系的性能及固化反应动力学并与桐油酸酐/环氧固化体系作了对比。结果表明:3种体系的表观活化能分别为89.54,85.42和84.78kJ/mol,反应级数均为0.92,最优固化条件为100℃/2h+120℃/2h+150℃/1h。桐油聚酰亚胺酸酐/环氧固化体系的拉伸强度分别为36.42、38.60MPa,弯曲强度分别为57.19、46.68MPa,压缩强度分别为108.15、116.97MPa,剪切强度分别为13.73、15.57MPa,综合力学性能显著强于桐油酸酐/环氧固化体系。HVAT酸酐固化体系的Tg(99.60℃)和BMIT酸酐固化体系的Tg(91.96℃)显著高于桐油酸酐固化体系的Tg(57.63℃),初始热分解温度接近400℃。桐油聚酰亚胺酸酐固化体系具有更好的耐高温性。
The properties and curing kinetics of curing systems of epoxy resin and self-made N,N-m-phenylene bismaleimide type tung oil polyimide anhydride(HVAT anhydride)and N,N-4,4-diphenylmethane bismaleimide type tung oil polyimide anhydride(BMIT anhydride)were studied by differential scanning calorimetry and thermogravimetric analysis and mechanical properties test and compared with the tung oil anhydride/epoxy curing system. The results showed that the apparent activation energies of the three systems were 89.54,85.42 and 84.78 kJ/mol,respectively,and the reaction order is 0.92. The optimal curing condition was 100 ℃/2 h + 120 ℃/2 h + 150 ℃/1 h. The tensile strengths of tung oil polyimide anhydride/epoxy curing system were 36.42 and 38.60 MPa,respectively. The flexural strengths were 57.19 and 46.68 MPa,respectively. The compressive strengths were 108.15 and 116.97 MPa,respectively. The shear strengths were 13.73 and 15.57 MPa,respectively. The comprehensive mechanical properties were significantly stronger than those of tung oil anhydride/epoxy curing system. The Tgof the HVAT anhydride curing system(99.60 ℃) and the Tgof the BMIT anhydride curing system(91.96 ℃)were significantly higher than the Tgof the tung oil anhydride curing system(57.63 ℃),and the initial thermal decomposition temperature was close to 400 ℃. The tung oil polyimide anhydride curing system had better high temperature resistance.
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