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Composites: Mechanics, Computations, Applications: An International Journal
ESCI SJR: 0.193 SNIP: 0.497 CiteScore™: 0.39

ISSN Print: 2152-2057
ISSN Online: 2152-2073

Composites: Mechanics, Computations, Applications: An International Journal

DOI: 10.1615/CompMechComputApplIntJ.v3.i3.50
pages 263-274

MORPHOLOGICAL AND MECHANICAL STUDIES OF POLYHYDROXYBUTYRATE COMPOSITES REINFORCED WITH FLAX-g-POLY(MA), FLAX-g-POLY(MA-co-AAc), and FLAX-g-POLY(MA-co-VA)

Susheel Kalia
Department of Chemistry, Shoolini University, Bajhol − 173 229, Dist. Solan (H. P.), India
Samriti Verma
Department of Chemistry, Shoolini University, Bajhol − 173 229, Dist. Solan (H. P.), India

ABSTRACT

The present paper deals with the microwave radiation-assisted graft copolymerization of methyl acrylate and its binary monomer mixture with acrylic acid and vinyl acetate onto flax fibers in the presence of Fenton's reagent as redox initiator. Maximum grafting has been observed at 3.31 × 10−3 mol/liter of methyl acrylate, 1:2 molar ratio of FAS−H2O2, (Fenton's reagent) 40 min reaction time, and 8.0 pH of reaction medium. In the case of binary vinyl monomer mixture of MA + AAc and MA + VA, maximum grafting has been observed at 2.91 × 10−3 mol/liter of AAc and 2.16 × 10−3 mol/liter of VA, respectively. In order to know the evidence of grafting, morphology, thermal stability and crystallinity, synthesized flax graft copolymers were characterized with FTIR, SEM, TGA, and XRD techniques. Polyhydroxybutyrate composites were manufactured using flax graft copolymers as reinforcing material and further subjected to morphological and mechanical studies. It has been found that grafting of flax fibers with vinyl monomers results in enhanced mechanical properties of polyhydroxybutyrate composites due to better binding between the fibers and matrix.