Mechanical properties of flax-g-poly(methyl acrylate) reinforced phenolic composites |
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Authors: | Susheel Kalia B S Kaith Sanjeev Sharma Bandna Bhardwaj |
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Institution: | (1) Department of Chemistry, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, 144 011, Pb., India;(2) Department of Chemistry, Singhania University, Jhunjhunu, 333 515, Rajasthan, India |
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Abstract: | In order to develop composites with better mechanical properties and environmental performance, it becomes necessary to increase
the hydrophobicity of the natural fibers and to improve the interface between matrix and natural fibers. Graft copolymerization
of natural fibers is one of the best methods to attain these improvements. Only few workers have reported the use of graft
copolymers as reinforcing material in the preparation of composites. So in the present paper, we report the preparation of
graft copolymers of flax fibers with methyl acrylate (MA) using Fenton’s reagent (FAS-H2O2) as redox system. Synthesized flax-g-poly(MA) was characterized with FTIR, TGA/DTA, scanning electron microscopy (SEM), and
X-ray diffraction (XRD) techniques. Composites were prepared using flax-g-poly(MA) as a reinforcement and phenolformaldehyde
(PF) as the binding material. Mechanical properties of phenol-formaldehyde composites were compared and it has been found
that composites reinforced with flax-g-poly(MA) showed improvement in mechanical properties. Composites reinforced with flax-g-poly(MA)
showed better tensile strength (235 N) and compressive strength (814 N) in comparison to composites reinforced with original
flax fiber which showed lesser tensile strength (162 N) and compressive strength (372 N). Composites reinforced with flax-g-poly(MA)
shows the improved MOR, MOE, and SP. |
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Keywords: | Fiber Flax-g-poly(MA) Composite Mechanical properties |
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