Next Article in Journal
Crosslinked Polyarylene Ether Nitrile Interpenetrating with Zinc Ion Bridged Graphene Sheet and Carbon Nanotube Network
Next Article in Special Issue
Synthesis of Humin-Phenol-Formaldehyde Adhesive
Previous Article in Journal
Preparation and Characterization of Thermo-Responsive Rod-Coil Diblock Copolymers
Previous Article in Special Issue
Improve Performance of Soy Flour-Based Adhesive with a Lignin-Based Resin
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Polymers 2017, 9(8), 341; https://doi.org/10.3390/polym9080341

Theoretical Study on Decomposition Mechanism of Insulating Epoxy Resin Cured by Anhydride

1
School of Electrical Engineering, Wuhan University, Wuhan 430072, China
2
State Grid Shaoxing Power Supply Company, Shaoxing 312000, China
*
Author to whom correspondence should be addressed.
Received: 11 July 2017 / Revised: 31 July 2017 / Accepted: 3 August 2017 / Published: 4 August 2017
(This article belongs to the Collection Polymeric Adhesives)
Full-Text   |   PDF [3267 KB, uploaded 7 August 2017]   |  

Abstract

High temperatures caused by partial discharge results in the decomposition of insulating epoxy resins in electrical equipment. In this paper, the ReaxFF force field is used to investigate the decomposition process of epoxy resins cured by anhydride and the formation mechanisms of small-molecule gases. Results show that the initiation reaction is the cleavage of an ester bond linked with an epoxy resin. Produced by the decomposition of ester groups, CO2 is the first and most abundant product. Meanwhile, CH2O can be generated through three main ways, although the process still depends on the decomposition of epoxy functional groups. H2O is produced by free radical collision and dehydration. The production of small-molecule gases has the following sequence: CO2, CH2O, CO, and H2O. The produced gases have the following order according to amount: CO2, CH2O, H2O, and CO. View Full-Text
Keywords: anhydride; epoxy resin; decomposition; simulation anhydride; epoxy resin; decomposition; simulation
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zhang, X.; Wu, Y.; Chen, X.; Wen, H.; Xiao, S. Theoretical Study on Decomposition Mechanism of Insulating Epoxy Resin Cured by Anhydride. Polymers 2017, 9, 341.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top