Preparation, characterization of highly dispersed reduced graphene oxide/epoxy resin and its application in alkali-activated slag composites

A highly dispersed reduced graphene oxide/epoxy resin composites (HD-RGO/EP) were synthesized and applied in alkali-activated slag based composites firstly. The synthesis, characterization and application in alkali-activated slag cementitious materials of this synthesized graphene are reported in th...

Full description

Saved in:
Bibliographic Details
Published in:Cement & concrete composites 2020-01, Vol.105, p.103424, Article 103424
Main Authors: Guo, Siyao, Lu, Yu, Wan, Xiaomei, Wu, Fei, Zhao, Tiejun, Shen, Chen
Format: Article
Language:English
Subjects:
Alkali-activated slag
Epoxy resin
Fracture toughness
Graphene
Graphene/epoxy resin composites
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A highly dispersed reduced graphene oxide/epoxy resin composites (HD-RGO/EP) were synthesized and applied in alkali-activated slag based composites firstly. The synthesis, characterization and application in alkali-activated slag cementitious materials of this synthesized graphene are reported in this paper. The dispersion states of the reduced graphene oxide in epoxy resin and alkali activated slag paste are proved to be sound by observation by TEM and Metallographic Microscope respectively. Both FTIR and Raman spectrograms verifies that there is no new reaction products generated under HD-RGO dispersing in the epoxy resin. It is confirmed that HD-RGO/EP increases the fracture toughness of alkali-activated slag mortar 75 times the most compared with the one blend with EP, the bonding behavior of the alkali-activated slag composite blended with HD-RGO/EP is enhanced significantly as well. HD-RGO/EP alkali-activated slag mortar is believed to have broad application prospects in repair and rehabilitation of reinforced concrete structures.
ISSN:0958-9465
1873-393X
DOI:10.1016/j.cemconcomp.2019.103424