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Manufacture and Characterization of hemp-Acrodur Biocomposites: Variation of Process Parameters

Manufacture and Characterization of hemp-Acrodur Biocomposites: Variation of Process Parameters In this study, hemp fibre reinforced Acrodur resin biocomposites were manufactured using nonwoven hemp fibre mats by varying a range of processing parameters such as Acrodur solution to dispersion ratio, relative humidity, curing time, and temperature. Dry fibre mats using Acrodur solution to dispersion ratio of 3:1 at a temperature of 160 °C and processing time of 20 minutes were found to be optimum condition for the manufacture of the biocomposites. These optimum parameters gave the best combination of specific tensile strength (26.4 MPa-cm3/g) and specific Young’s modulus (4.4 GPa-cm3/g) with a density of 0.94 g/cm3. Thermogravimetric analysis (TGA) of the optimised biocomposites showedsimilar thermal stability when compared with pristine fibres. Contact angle measurements of the optimised biocomposites showed increased hydrophobicity of the biocomposites than those of the pristine fibres. From the water immersion test, the path of wicking of water molecules into the biocomposites was believed to be rather straight than tortuous and A 4-week water immersion test of the optimised biocomposites conceded about 43.5 % loss of tensile strength and 57.1 % loss of Young’s modulus which was believed to be due to wicking of the water molecules into the fibre of the biocomposites in a straight path rather than a tortuous path. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fibers and Polymers Springer Journals

Manufacture and Characterization of hemp-Acrodur Biocomposites: Variation of Process Parameters

Islam, Mohammad S.; Miao, Menghe
Fibers and Polymers , Volume 23 (8) – Aug 1, 2022
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References (57)

Publisher
Springer Journals
Copyright
Copyright © The Korean Fiber Society 2022
ISSN
1229-9197
eISSN
1875-0052
DOI
10.1007/s12221-022-2228-2
Publisher site
See Article on Publisher Site

Abstract

In this study, hemp fibre reinforced Acrodur resin biocomposites were manufactured using nonwoven hemp fibre mats by varying a range of processing parameters such as Acrodur solution to dispersion ratio, relative humidity, curing time, and temperature. Dry fibre mats using Acrodur solution to dispersion ratio of 3:1 at a temperature of 160 °C and processing time of 20 minutes were found to be optimum condition for the manufacture of the biocomposites. These optimum parameters gave the best combination of specific tensile strength (26.4 MPa-cm3/g) and specific Young’s modulus (4.4 GPa-cm3/g) with a density of 0.94 g/cm3. Thermogravimetric analysis (TGA) of the optimised biocomposites showedsimilar thermal stability when compared with pristine fibres. Contact angle measurements of the optimised biocomposites showed increased hydrophobicity of the biocomposites than those of the pristine fibres. From the water immersion test, the path of wicking of water molecules into the biocomposites was believed to be rather straight than tortuous and A 4-week water immersion test of the optimised biocomposites conceded about 43.5 % loss of tensile strength and 57.1 % loss of Young’s modulus which was believed to be due to wicking of the water molecules into the fibre of the biocomposites in a straight path rather than a tortuous path.

Journal

Fibers and Polymers – Springer Journals

Published: Aug 1, 2022

Keywords: Acrodur; Polymer-matrix composites; Hemp fibre mats; Biocomposites; Compression moulding

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