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AFG-90基固体浮力材料的固化动力学与性能研究

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AFG-90基固体浮力材料的固化动力学与性能研究
Study on Curing Kinetics and Properties of AFG-90 Based Solid Buoyancy Materials
投稿时间:2018-08-24
DOI:10.15918/j.tbit1001-0645.2018.11.017
中文关键词:固体浮力材料环氧树脂差示扫描量热法固化动力学
English Keywords:solid buoyancy materialepoxy resindifferential scanning calorimetry (DSC)curing kinetics
基金项目:
作者单位E-mail
于丝竹北京理工大学 材料学院, 北京 100081
李晓东北京理工大学 材料学院, 北京 100081
邹美帅北京理工大学 材料学院, 北京 100081zoums@bit.edu.cn
郭晓燕北京理工大学 材料学院, 北京 100081
金信北京理工大学 材料学院, 北京 100081
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中文摘要:
为了确定N,N-二缩水甘油对氨基苯酚缩水甘油醚环氧树脂(AFG-90)/四氢邻苯二甲酸酐(THPA)的固化工艺,采用非等温DSC法研究了固化反应动力学,制备了添加空心玻璃微珠(HGM)的固体浮力材料.结果表明, mAFG-90mTHPA=1:1为最佳配比;Kissinger法计算的表观活化能E为67.72 kJ·mol-1,指前因子lgA为8.20 s-1;最概然机理函数为Avrami-Erofeev方程;固化工艺为100℃,1.0 h,125℃,2.5 h;添加HGM的固体浮力材料的密度为0.90 g·cm-3,压缩强度为113 MPa.
English Summary:
In order to determine the curing process of N,N-diglycidyl p-aminophenol glycidyl ether epoxy resin (AFG-90)/tetrahydrophthalic anhydride (THPA), curing reaction kinetics was studied by non-isothermal differential scanning calorimetry (DSC) method, and the solid buoyancy material with hollow glass microbeads (HGM) was prepared. Results show that the best ratio of AFG-90/THPA is 1:1. The apparent activation energy (E) and pre-exponential factor (lg A) obtained by Kissinger method are 67.72 kJ· mol-1 and 8.20 s-1, respectively. The most probable mechanism function of curing process can be described as Avrami-Erofeev equation. The curing process is 100℃, 1.0 h and 125℃, 2.5 h. The density and compressive strength of solid buoyancy material are 0.90 g· cm-3 and 113 MPa, respectively.
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