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Author:

Chai, Hui (Chai, Hui.) | Wang, Xinhua (Wang, Xinhua.) | Yang, Xuyun (Yang, Xuyun.) | Meng, Tao (Meng, Tao.) | Cheng, Yiqi (Cheng, Yiqi.) | Rehman, Waheed Ur (Rehman, Waheed Ur.)

Indexed by:

EI Scopus SCIE

Abstract:

The current research work presents a novel nonionic curing agent (AEDA) synthesized by utilizing ethylene glycol diglycidyl ether (EGDE), 3,4-dimethoxyaniline (DI), and triethylenetetramine (TETA). Infrared spectroscopy and nuclear magnetic resonance spectroscopy were used to characterize the structure of AEDA curing agent. Non-isothermal scanning calorimetry was used to determine the activation energy and curing conditions of epoxy resin in the curing process. An impact testing machine, a tensile testing machine and a scanning electron microscope (SEM) were used to analyze the impact strength, tensile strength, bending strength, and micromorphology of the AEDA/E-51 system with different mass ratios. The results show that AEDA is an effective high-temperature curing agent. For the AEDA/E-51 system with the optimal mass ratio of 10:100, the best curing temperature is 92.15 degrees C, and the post-curing temperature is 135.65 degrees C. Furthermore, the apparent activation energy (E-a) of 1670 J/mol, the pre-exponential factor (A) of 3.7 x 10(-4), and the reaction series (n) value of 0.76 are obtained for the AEDA/E-51 system. The impact strength of AEDA/E-51 epoxy resin polymer is 7.82 kJ/m(2), tensile strength is 14.2 MPa, and bending strength is 18.92 MPa. The micromorphological results of the AEDA/E-51 system are consistent with the results of DSC test and mechanical properties test. Hence, this study provides theoretical support for the practical applications of AEDA as curing agent.

Keyword:

mechanical properties curing agent epoxy resin differential scanning calorimetry curing kinetics

Author Community:

  • [ 1 ] [Chai, Hui]Beijing Univ Technol, Fac Mat & Mfg, Inst Intelligent Machinery, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 2 ] [Wang, Xinhua]Beijing Univ Technol, Fac Mat & Mfg, Inst Intelligent Machinery, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 3 ] [Cheng, Yiqi]Beijing Univ Technol, Fac Mat & Mfg, Inst Intelligent Machinery, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 4 ] [Rehman, Waheed Ur]Beijing Univ Technol, Fac Mat & Mfg, Inst Intelligent Machinery, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 5 ] [Yang, Xuyun]China Special Equipment Inspect & Res Inst, Pressure Piping Dept, Beijing, Peoples R China
  • [ 6 ] [Meng, Tao]China Special Equipment Inspect & Res Inst, Pressure Piping Dept, Beijing, Peoples R China

Reprint Author's Address:

  • [Wang, Xinhua]Beijing Univ Technol, Fac Mat & Mfg, Inst Intelligent Machinery, 100 Pingleyuan, Beijing 100124, Peoples R China

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Source :

POLYMERS FOR ADVANCED TECHNOLOGIES

ISSN: 1042-7147

Year: 2021

Issue: 1

Volume: 33

Page: 380-391

3 . 4 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:96

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 6

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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