Effect of fiber surface treatment on the properties of biocomposites from nonwoven industrial hemp fiber mats and unsaturated polyester resin

Geeta Mehta

Associate Professor

mehtagee@umich.edu

3044 NCRC, Building 28

T: (734) 763-3957

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G Mehta, LT Drzal, AK Mohanty, and M Misra (2006)

JOURNAL OF APPLIED POLYMER SCIENCE, 99(3):1055-1068.

Biocomposites were made with nonwoven hemp mats and unsaturatedpolyester resin (UPE). The hemp fiber volume fraction was optimized bymechanical testing. The effect of four surface treatments of industrialhemp fibers on mechanical and thermal properties of biocomposites wasstudied. The treatments done were alkali treatment, silane treatment,UPE (matrix) treatment, and acrylonitrile treatment. Bending strength,modulus of elasticity, tensile strength, tensile modulus, impactstrength, storage modulus, loss modulus, and tan 5 were evaluated andcompared for all composites. The mechanical as well as thermalproperties of the biocomposites improved after surface treatments. Theproperties of the above biocomposites were also compared withE-glass-mat composite. To achieve balance in properties, a hybridcomposite of industrial hemp and glass fibers was made. (c) 2005 WileyPeriodicals, Inc.

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