期刊
CARBON
卷 139, 期 -, 页码 205-209出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2018.06.049
关键词
Carbon based; Graphene quantum dots; Flame retardant; Transparent and cotton fibre
资金
- DAE-BRNS research grant fund [34/14/14/2015/BRNS]
- DST [YSS/2015/000788]
- UGC Start-Up-Grant [F.4-5/2006 (BSR)]
- DAE-BRNS
In this article, a novel and facile method is proposed to synthesize a highly effective carbon-based water dispersible flame retardant. This is the first report of carbon-based highly potent transparent flame retardant, which keeps the colour of the cloth intact. A functionalized flame retardant graphene quantum dots (FR-GQD) as a carbon-based material was synthesized using graphene oxide and phosphorous source through a hydrothermal treatment. As prepared transparent FR-GQD solution coated cotton cloth was found to maintain cloth's original colour. In a flame test, FR-GQD coated cloth emitted little smoke initially and after that, it failed to catch fire for more than 300 s and maintained its initial shape. Whereas the control cloth caught fire and burnt completely within 15 s. Flame retardant efficiency of the FR-GQD coated cloth was confirmed by detail flame tests such as limiting oxygen index (LOI), exposure to high heat flux (similar to 50 kW/cm(2)) and turbulent premixed flame at high temperature (similar to 1400 C degrees). The strength of FR-GQD coated cloth was determined using tensile strength test. This technique of synthesis and application of this water dispersed FR material may find a general approach towards the practical and eco-friendly application of non-toxic FR-GQD as transparent flame retardant. (C) 2018 Elsevier Ltd. All rights reserved.
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