SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENT

In present paper, binary vinyl monomers mixtures such as methyl methacrylate (MMA) + vinyl acetate (VA), MMA + acrylamide (AAm) and MMA + styrene (Sty) have been graft copolymerized onto flax fiber. 21.32, 38.80 and 25.60 % grafting have been found with MMA+VA, MMA+AAm and MMA+Sty binary monomer mix...

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Autores principales:	KALIA,SUSHEEL, KAITH,B.S
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2009
Materias:	Flax fiber graft copolymers IR TGA/DTA SEM crystallinity composites
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200002
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spelling	oai:scielo:S0717-970720090002000022009-10-07SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENTKALIA,SUSHEELKAITH,B.S Flax fiber graft copolymers IR TGA/DTA SEM crystallinity composites In present paper, binary vinyl monomers mixtures such as methyl methacrylate (MMA) + vinyl acetate (VA), MMA + acrylamide (AAm) and MMA + styrene (Sty) have been graft copolymerized onto flax fiber. 21.32, 38.80 and 25.60 % grafting have been found with MMA+VA, MMA+AAm and MMA+Sty binary monomer mixtures, respectively. Graft copolymers thus prepared were characterized with FTIR spectroscopy, scanning electron microscopy (SEM), TGA/DTA techniques and X-ray diffraction (XRD). Thermal stability of flax-g-poly(MMA+AAm) has been found to more than that of flax fiber and other graft copolymers. On grafting, percentage crystallinity decreases rapidly with reduction in its stiffness and hardness. Highest value of percentage crystallinity has been found in case of flax fiber in comparison to flax-g-copolymers. Synthesized graft copolymers were used as reinforcing material in phenolic composites. Composites thus prepared were subjected for the evaluation of some mechanical properties such as wear resistance, tensile strength and compressive strength.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.54 n.2 20092009-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200002en10.4067/S0717-97072009000200002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Flax fiber graft copolymers IR TGA/DTA SEM crystallinity composites
spellingShingle	Flax fiber graft copolymers IR TGA/DTA SEM crystallinity composites KALIA,SUSHEEL KAITH,B.S SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENT
description	In present paper, binary vinyl monomers mixtures such as methyl methacrylate (MMA) + vinyl acetate (VA), MMA + acrylamide (AAm) and MMA + styrene (Sty) have been graft copolymerized onto flax fiber. 21.32, 38.80 and 25.60 % grafting have been found with MMA+VA, MMA+AAm and MMA+Sty binary monomer mixtures, respectively. Graft copolymers thus prepared were characterized with FTIR spectroscopy, scanning electron microscopy (SEM), TGA/DTA techniques and X-ray diffraction (XRD). Thermal stability of flax-g-poly(MMA+AAm) has been found to more than that of flax fiber and other graft copolymers. On grafting, percentage crystallinity decreases rapidly with reduction in its stiffness and hardness. Highest value of percentage crystallinity has been found in case of flax fiber in comparison to flax-g-copolymers. Synthesized graft copolymers were used as reinforcing material in phenolic composites. Composites thus prepared were subjected for the evaluation of some mechanical properties such as wear resistance, tensile strength and compressive strength.
author	KALIA,SUSHEEL KAITH,B.S
author_facet	KALIA,SUSHEEL KAITH,B.S
author_sort	KALIA,SUSHEEL
title	SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENT
title_short	SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENT
title_full	SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENT
title_fullStr	SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENT
title_full_unstemmed	SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENT
title_sort	synthesis of flax-g-copolymers under pressure for use in phenolic composites as reinforcement
publisher	Sociedad Chilena de Química
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000200002
work_keys_str_mv	AT kaliasusheel synthesisofflaxgcopolymersunderpressureforuseinphenoliccompositesasreinforcement AT kaithbs synthesisofflaxgcopolymersunderpressureforuseinphenoliccompositesasreinforcement
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SYNTHESIS OF FLAX-G-COPOLYMERS UNDER PRESSURE FOR USE IN PHENOLIC COMPOSITES AS REINFORCEMENT

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