Possible nanotechnology applications in natural fibre based industries

Ishak A., . (2014) Possible nanotechnology applications in natural fibre based industries. [Proceedings Paper]

Cellulose nanocrystals CNC are an emerging renewable nanomaterial that holds promise in many different applications such as in biocomposites pharmaceuticals polymer electrolyte foods etc. By using CNC outstanding properties or significantly improved physical chemical as well as electronic properties can be developed. Since the last three years we have been extensively working on CNC from different types of Malaysian resources natural fibres such as kenaf rice husk coconut empty fruit bunch mengkuang and nata de coco. Aqueous suspensions of such nanocrystals can be prepared by acid hydrolysis of the substrate. The object of this treatment is to dissolve away regions of low lateral order so that the water-insoluble highly crystalline residue may be converted into a stable suspension by subsequent vigorous mechanical shearing action.A series of glycerol-plasticized starch composites reinforced by cellulose nanocrystals through the solution casting technique and nanocellulose hydrogel formulation with acrylic acid were successfully fabricated. The starch biocomposite films reinforced with nanocrystals showed an improved tensile strengths and moduli. Field emission scanning electron microscopy FESEM showed that the cellulose nanocrystals CNCs were well distributed in the matrix.

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Abstract

Cellulose nanocrystals CNC are an emerging renewable nanomaterial that holds promise in many different applications such as in biocomposites pharmaceuticals polymer electrolyte foods etc. By using CNC outstanding properties or significantly improved physical chemical as well as electronic properties can be developed. Since the last three years we have been extensively working on CNC from different types of Malaysian resources natural fibres such as kenaf rice husk coconut empty fruit bunch mengkuang and nata de coco. Aqueous suspensions of such nanocrystals can be prepared by acid hydrolysis of the substrate. The object of this treatment is to dissolve away regions of low lateral order so that the water-insoluble highly crystalline residue may be converted into a stable suspension by subsequent vigorous mechanical shearing action.A series of glycerol-plasticized starch composites reinforced by cellulose nanocrystals through the solution casting technique and nanocellulose hydrogel formulation with acrylic acid were successfully fabricated. The starch biocomposite films reinforced with nanocrystals showed an improved tensile strengths and moduli. Field emission scanning electron microscopy FESEM showed that the cellulose nanocrystals CNCs were well distributed in the matrix.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia TP339 B615 Call Number
AGROVOC Term:	Fibres
AGROVOC Term:	Cellulose
AGROVOC Term:	Cassava starch
AGROVOC Term:	Extraction
AGROVOC Term:	Hydrolysis
AGROVOC Term:	morphology
AGROVOC Term:	Tensile strength
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/12123

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