Study of curing kinetics of anhydride cured petroleum-based (DGEBA) epoxy resin and renewable resource based epoxidized soybean oil (ESO) systems catalyzed by 2-methylimidazole

被引：49

作者：

Kumar, Sudheer ^{[1
]}

Samal, Sushanta K. ^{[1
]}

Mohanty, Smita ^{[1
]}

Nayak, Sanjay K. ^{[1
]}

机构：

[1] Cent Inst Plast Engn Technol, Lab Adv Res Polymer Mat, B-25,CNI Complex, Bhubaneswar 751024, Odisha, India

来源：

THERMOCHIMICA ACTA | 2017年 / 654卷

关键词：

Petroleum-based (DGEBA) epoxy resin; Bio-resin (ESO); Activation energy; Curing agent (MHHPA); LINSEED OIL; THERMAL-DEGRADATION; MECHANICAL CHARACTERIZATION; IMPACT PROPERTIES; BIOBASED EPOXY; BISPHENOL-A; BEHAVIOR; DSC;

D O I：

10.1016/j.tca.2017.05.016

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The non-isothermal curing kinetics of diglycidyl ether of bisphenol-A (DGEBA) and bio-based epoxy resin (ESO) both cured with methyl hexahydrophthalic anhydride (MHHPA) curing agent in the presence of 2-methylimi-dazole as catalyst (2-MI) was investigated using differential scanning calorimetry (DSC) at three different heating rates 5, 10, 15 degrees C/min. The peak temperature was found to be dependent on the heating rates and the structure of anhydride as well as molar ratio of epoxy groups to MHHPA and catalyst. The activation energy (E-a) was determined by Kissinger and Ozawa methods. The two kinetic parameter m and n were obtained by Sestak Berggren autocatalytic model. The curve obtained by the predicted values of the non-isothermal Malek method matched perfectly with the experimental data for DGEBA, ESO and their blend.

引用

页码：112 / 120

页数：9

共 71 条

[1] Thermal and Mechanical Properties of Anhydride-Cured Epoxy Resins with Different Contents of Biobased Epoxidized Soybean Oil [J].