Details

Autor(en) / Beteiligte

• Gogoi, Pronob
• Boruah, Ratan
• Dolui, Swapan K.

Titel

Jatropha curcas oil based alkyd/epoxy/graphene oxide (GO) bionanocomposites: Effect of GO on curing, mechanical and thermal properties

Ist Teil von

• Progress in organic coatings, 2015-07, Vol.84, p.128-135

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2015

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Incorporation of GO into the polmer matrix significantly enhances the thermal and mechanical properties of the alkyd/epoxy/GO bionanocomposites and significantly decreases the curing time of the alkyd/epoxy resin blend. •Graphene oxide (GO) has effective reinforcing effects on alkyd/epoxy blend matrix.•Incorporation of GO reduces the drying time of alkyd/epoxy resin blend.•GO significantly improves the thermal and mechanical properties.•Strong interfacial interaction facilitates efficient load transfer. Jatropha curcas oil based alkyd/epoxy/GO bionanocomposites were prepared by direct solution blending of alkyd/epoxy blend matrix with GO nano filler. Structures and properties of the bionanocomposites were characterized with Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, thermogravimetric analysis, and tensile testing. X-ray diffraction and transmission electron microscopy study demonstrates the formation of highly exfoliated GO layers and its homogeneous dispersion throughout the polymer matrix with 1 and 3wt% GO. However, the intercalated structure is predominant with 5wt% GO. The homogeneous dispersion and the strong interaction of the GO layers and the polymer matrix induced the significant improvement in thermal and mechanical properties of the bionanocomposites. The tensile strength and elastic modulus of the bionanocomposite increased by 133% and 68% respectively with 3wt% GO loading. The thermal stability of the bionanocomposite improved by 39°C and Tg is shifted toward higher temperature by 20°C as compared to the pristine polymer. Incorporation of GO significantly decreases the curing time of the alkyd/epoxy resin blend.