Issue 45, 2018

A novel self-healing power cable insulating material based on host–guest interactions

Abstract

The insulating materials used in power cables are susceptible to damage and cracks during installation and operation. To solve this problem, we have prepared a self-healing material PVP/p(HEMA-co-BA), which is synthesized by radical polymerization using HEMA, BA, PVP and a host–guest assembly. The host–guest assembly is constructed through interactions between host and guest molecules (CD–Al2O3 NPs act as the host, and HEMA–Ad acts as the guest). The characterization results of the materials show that there are two kinds of supramolecular interactions, namely, the host–guest interaction and the hydrogen bonding. The material possesses good thermal stability (heat-resisting temperature can reach 200 °C) and good electrical performance. The storage modulus of the material can be increased up to 432 MPa using a cross-linking agent at 20 °C. Furthermore, the material exhibits self-healing property, and it can self-heal several times; its self-healing efficiency is relative to the dosage of the cross-linking agent.

Graphical abstract: A novel self-healing power cable insulating material based on host–guest interactions

Supplementary files

Article information

Article type
Paper
Submitted
07 6 2018
Accepted
02 7 2018
First published
16 7 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 25313-25318

A novel self-healing power cable insulating material based on host–guest interactions

L. Peng, M. Zhang, M. Lin and Q. Fu, RSC Adv., 2018, 8, 25313 DOI: 10.1039/C8RA04882G

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