• 文献标题:   Comparative effects of pristine and ball-milled graphene oxide on physico-chemical characteristics of cement mortar nanocomposites
  • 文献类型:   Article
  • 作  者:   SHARMA S, KOTHIYAL NC
  • 作者关键词:   graphene oxide nanoplatelet, ball milling, compressive strength, electrical resistivity, microstructure, crystalline phase composition, thermal behavior
  • 出版物名称:   CONSTRUCTION BUILDING MATERIALS
  • ISSN:   0950-0618 EI 1879-0526
  • 通讯作者地址:   Dr BR Ambedkar Natl Inst Technol
  • 被引频次:   24
  • DOI:   10.1016/j.conbuildmat.2016.04.019
  • 出版年:   2016

▎ 摘  要

Graphene Oxide Nanoplatelets (GONPs) have been produced from Pristine Graphene Oxide (PGO) using ball-milling and characterized using FTIR, XRD, SEM/EDS and TEM. Effects of 0.1 wt% and 0.125 wt% of GONPs and PGO on compressive strength and direct-current (DC) electrical resistivities of cement nanocomposites at 7, 14, 28 and 90 days are studied. Microstructural, thermal and crystalline behavior of 90-days cured nanocomposites have been investigated using SEM, TGA and XRD respectively. Enhancement of 33% in strength is obtained with 0.125% GONPs with an electrical resistivity of 2.32 x 10(6) ohm.cm. Hexagonal platelets of hydration products having uniform orientation were produced after 90 days. (c) 2016 Elsevier Ltd. All rights reserved.