The curing kinetics and thermal properties of epoxy resins cured by aromatic diamine with hetero-cyclic side chain structure

被引：35
|
作者：
Xiong, Xuhai [1 ]
Ren, Rong [1 ]
Liu, Siyang [1 ]
Lu, Shaowei [1 ]
Chen, Ping [1 ,2 ]
机构：
[1] Shenyang Aerosp Univ, Liaoning Key Lab Adv Polymer Matrix Composites Mf, Shenyang 110136, Peoples R China
[2] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
来源：
THERMOCHIMICA ACTA | 2014年 / 595卷
基金：
中国国家自然科学基金;
关键词：
Aromatic amine; Phthalide structure; Epoxy resin; Curing kinetics; Thermal-mechanical properties; DIGLYCIDYL ETHER; AGENT;
D O I：
10.1016/j.tca.2014.07.027
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The use of novel aromatic diamine containing phthalide structure (BAPP) as curing agent of diglycidylether of bisphenol A (DGEBA) epoxy resin has been studied. BAPP can react with epoxy monomers by an epoxy-amine condensation mechanism, which renders phthalide cardo incorporate into the network structure of the thermoset. The curing behavior and kinetics have been investigated by differential scanning calorimetry (DSC) and the kinetic analysis of non-isothermal cure shows that autocatalytic model is suitable to describe the cure mechanism. The thermal-mechanical properties have been determined with dynamic mechanical analysis (DMA) and the activation energies for relaxation were calculated according to the Arrhenius law. Thermogravimetric analysis exhibits a lower initial decomposition temperature, decreased rate of decomposition and higher char yield compared with DGEBA cured with commercially available 4,4'-diaminodiphenylsulfone (DDS). (C) 2014 Published by Elsevier B.V.
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页码：22 / 27
页数：6
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