Biocomposites of poly(lactic acid) (PLA) reinforced with silane treated banana fiber (SiB) were prepared using melt blending technique. To improve the compatibility, a secondary reinforcing filler (Cloisite 30B (C30B) nanoclay) as well as graft copolymer, poly(lactic acid)‐graft‐glycidyl methacrylate (PLA‐g‐GMA) as a compatibilizing agent were incorporated in to PLA/SiB biocomposites. PLA‐g‐GMA was synthesized by free radical copolymerization of different concentration (10, 15, 20, and 25 wt%) of glycidyl methacrylate (GMA) with PLA and was confirmed by Fourier transform infrared spectroscopy spectroscopy and titration method. The influence of C30B nanoclay as well as PLA‐g‐GMA on the thermal and flammability characteristics of PLA/SiB have been studied. The thermal characteristics of composites have been evaluated by thermogravimetric analysis (TGA). The activation energy of the composites has been estimated using Friedman, Kissinger, and Flynn–Wall–Ozawa (FWO) methods by employing TGA. The obtained activation energy revealed that PLA‐g‐GMA compatibilized bionanocomposites had better thermal stability. Furthermore, flammability properties were obtained from UL‐94 horizontal burning test and cone calorimetry showed enhancement of flame retardant properties after addition of C30B and PLA‐g‐GMA. J. VINYL ADDIT. TECHNOL., 23:E81–E91, 2017.
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Sajna et al. (2016) studied this question.
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