Disulfide exchange assisted self-healing epoxy/PDMS/graphene oxide nanocomposites

被引：44

作者：

Krishnakumar, Balaji ^{[1
]}

Singh, Manjeet ^{[1
]}

Parthasarthy, Vijay ^{[1
]}

Park, Chanwook ^{[2
]}

Sahoo, Nanda Gopal ^{[3
]}

Yun, Gun Jin ^{[2
]}

Rana, Sravendra ^{[1
]}

机构：

[1] UPES, Sch Engn, Energy Acres, Bidholi, Dehra Dun 248007, Uttarakhand, India

[2] Seoul Natl Univ, Inst Adv Aerosp Technol, Gwanak Ro 1, Seoul 08826, South Korea

[3] Kumaun Univ, Dept Chem, Nanosci & Nanotechnol Ctr, DBS Campus, Naini Tal 263001, Uttarakhand, India

来源：

NANOSCALE ADVANCES | 2020年 / 2卷 / 07期

关键词：

MECHANICAL-PROPERTIES; GRAPHENE; THERMOSETS; VISCOSITY; FACILE; PDMS;

D O I：

10.1039/d0na00282h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Vitrimers, a class of polymeric networks that change their topology above a threshold temperature, have been investigated in recent years. In order to further extend their properties, in this research, we demonstrate disulfide exchange assisted polydimethylsiloxane (PDMS)- and graphene oxide (GO)-involved epoxy vitrimers, which exhibit a reduction in glass transition temperature and storage modulus with increase in flexural strain and low-temperature self-healing. Stress relaxation and Arrhenius study were carried out for the analysis of vitrimeric behavior, where the prepared epoxy material displays self-healing at 80 degrees C for 5 min, whereas a low-temperature self-healing (60 degrees C) was observed for epoxy/PDMS/GO nanocomposites.

引用

页码：2726 / 2730

页数：5

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