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Enzymatically treated natural fibres as reinforcing agents for biocomposite material: mechanical, thermal, and moisture absorption characterization

Journal of materials science, 2016-03, Vol.51 (5), p.2677-2686 [Peer Reviewed Journal]

Springer Science+Business Media New York 2015 ;Journal of Materials Science is a copyright of Springer, (2015). All Rights Reserved. ;ISSN: 0022-2461 ;EISSN: 1573-4803 ;DOI: 10.1007/s10853-015-9582-z

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Title:
Enzymatically treated natural fibres as reinforcing agents for biocomposite material: mechanical, thermal, and moisture absorption characterization
Author: George, Michael ; Mussone, Paolo G ; Alemaskin, Kirill ; Chae, Michael ; Wolodko, John ; Bressler, David C
Subjects: absorption ; biocomposites ; Biomedical materials ; Cellulase ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Classical Mechanics ; Composite materials ; Crystallography and Scattering Methods ; endo-1,4-beta-glucanase ; enzymatic treatment ; Enzymes ; feedstocks ; Fibers ; Flax ; Hemicellulases ; hemicellulose ; Hemp ; Hydroxyl groups ; Laccase ; Materials Science ; Mechanical properties ; Moisture absorption ; Original Paper ; Pectinase ; Polarity ; Polygalacturonase ; Polymer matrix composites ; Polymer Sciences ; Polypropylenes ; Solid Mechanics ; sustainable technology ; Thermal properties ; Thermal resistance ; Thermodynamic properties ; thermoplastics ; Water resistance ; Xylanase ; xylanases
Is Part Of: Journal of materials science, 2016-03, Vol.51 (5), p.2677-2686
Description: The main goal of this research was to study how enzymatic treatment of hemp and flax fibres affects their utilization as reinforcement in polypropylene composites. Enzymes are environmentally benign, can be reused, and require mild operating conditions. The central hypothesis of this study is that the removal of hemicellulose and pectic fractions would reduce surface polarity resulting in fibres better suited for thermoplastic owing the reduction of hydroxyl groups distributed on the fibres surface. As a result, hemicellulases, pectinases, and a laccase were investigated. The removal of hemicellulose and pectic components using xylanase (with and without cellulase) and polygalacturonase, respectively, resulted in improved thermal properties and water resistance. The removal of up to 25 % (wt) of natural fibre did not significantly compromise the mechanical properties of the composite materials. This environmentally benign approach could be tailored to pretreat other feedstocks and optimized to cleave a specific amount of fibres for different composite applications.
Publisher: New York: Springer US
Language: English
Identifier: ISSN: 0022-2461
EISSN: 1573-4803
DOI: 10.1007/s10853-015-9582-z
Source: AUTh Library subscriptions: ProQuest Central

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Enzymatically treated natural fibres as reinforcing agents for biocomposite material: mechanical, thermal, and moisture absorption characterization

Springer Science+Business Media New York 2015 ;Journal of Materials Science is a copyright of Springer, (2015). All Rights Reserved. ;ISSN: 0022-2461 ;EISSN: 1573-4803 ;DOI: 10.1007/s10853-015-9582-z

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