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Biocomposites synthesized from chemically modified soy oil and biofibers
Author(s) -
Tran Phuong,
Graiver Daniel,
Narayan Ramani
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22265
Subject(s) - materials science , epoxidized soybean oil , maleic anhydride , ultimate tensile strength , thermosetting polymer , kenaf , fourier transform infrared spectroscopy , epoxy , composite material , soybean oil , polymer , chemical engineering , copolymer , organic chemistry , chemistry , fiber , raw material , food science , engineering
Composites with good mechanical properties were prepared from chemically modified soy oils and biofibers without additional petroleum‐based polymers. These composites were prepared from maleic anhydride and epoxide functionalized soybean oils that were cured in the presence of various biofibers (e.g., kenaf, kayocell, protein grits, and solka‐floc) by a flexible amine catalyst. Rigid thermosets characterized by a high‐crosslink‐density network and a high gel fraction were obtained. Fourier transform infrared was used to follow the cure reaction via the disappearance of the characteristic anhydride adsorptions. Composites with high tensile strength and low elongation were obtained when kenaf fibers were treated with (2‐aminoethyl)‐3‐aminopropyl‐trimethoxysilane and then added to the epoxidized/maleated soy matrix and cured with hexamethylenediamine. These biobased composites could provide inexpensive epoxy resin alternatives for a wide variety of industrial applications. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 69–75, 2006