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Preparation of dispersible graphene oxide as a filler to increase the thermal stability of a flame retarding polymer
- Zhang, Shu-peng, Song, Hai-ou
- Carbon 2013 v.56 pp. 394
- dispersibility, esterification, flame retardants, polyethylene glycol, solvents, temperature, thermal stability
- Graphene oxide (GO) was modified with polyethylene glycol mono-methyl ether 750 (MPEG750) by esterification to increase its dispersibility in solvents and a GO/PEG-4000 composite was prepared by solution blending. Results showed that the GO-MPEG750 is dispersible in both polar and nonpolar solvents. The thermal stability of the PEG-4000 could be improved significantly by adding as little as 1mass% of the GO-MPEG750 in PEG-4000 as a nanofiller. The incipient degradation temperature was increased by 63°C for the composite, suggesting a promising use of dispersible GO-MPEG750 to increase the thermal stability of flame retardants in industry.