

FOLLOWUS
Hebei Key Laboratory of Green and Efficient New Electrical Materials and Equipment, North China Electric Power University, Baoding 071003, China
15274692771@163.com
Received:06 June 2025,
Accepted:25 July 2025,
Online First:16 October 2025,
Published:05 November 2025
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Liu, H. C.; Li, X. Q.; Zhou, X. X.; Tian, H. Q. Synthesis and performance evaluation of degradable sorbitol-derived epoxy resins. Chinese J. Polym. Sci. 2025, 43, 2073–2082
He-Chen Liu, Xiang-Qing Li, Xin-Xin Zhou, et al. Synthesis and Performance Evaluation of Degradable Sorbitol-derived Epoxy Resins[J]. Chinese Journal of Polymer Science, 2025, 43(11): 2073-2082.
Liu, H. C.; Li, X. Q.; Zhou, X. X.; Tian, H. Q. Synthesis and performance evaluation of degradable sorbitol-derived epoxy resins. Chinese J. Polym. Sci. 2025, 43, 2073–2082 DOI: 10.1007/s10118-025-3417-4.
He-Chen Liu, Xiang-Qing Li, Xin-Xin Zhou, et al. Synthesis and Performance Evaluation of Degradable Sorbitol-derived Epoxy Resins[J]. Chinese Journal of Polymer Science, 2025, 43(11): 2073-2082. DOI: 10.1007/s10118-025-3417-4.
This paper is based on the construction of a resin cross-linking network using dynamic ester bonds
employing bio-based sorbitol glycidyl ether as the resin matrix. The effects of different catalysts on the performance of the resin were systematically investigated. And the resins produced can be degraded in benzyl alcohol
demonstrating excellent degradability.
The introduction of dynamic covalent bonds into the structure of epoxy resins can improve the degradation performance of the materials. But to a certain extent
it will affect the insulating properties of the resin
and how to balance the insulating properties and degradation performance has become an urgent problem. In this paper
the effects of different catalysts on the thermal-force-electrical properties of sorbitol-based resins were systematically investigated based on the dynamic ester bonding to construct the resin crosslinking network
and the biobased sorbitol glycidyl ether was used as the resin matrix. The experiments show that the resin system catalyzed by triethanolamine (TEOA) exhibits excellent comprehensive performance
which combines good thermal stability and mechanical properties with excellent electrical properties (breakdown field strength of 44.21 kV/mm and dielectric loss factor of 0.29%). In addition
chemical degradation tests were conducted on the resin systems with different catalysts
and the experiments showed that the produced resins could be degraded in benzyl alcohol and exhibited good degradation performance. This study provides a theoretical basis and technical path for the development of new bio-based electrical insulating materials with both high insulation and degradation properties
which is conducive to the popularization and application of bio-based resins in the field of electrical equipment.
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