Acid mediated networked cellulose: Preparation and characterization

R. Hashaikeh; H. Abushammala

doi:10.1016/j.carbpol.2010.08.081

Acid mediated networked cellulose: Preparation and characterization

R. Hashaikeh, H. Abushammala

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

High-yield networked cellulose (NC) material was prepared by sulfuric acid dissolution of microcrystalline cellulose (MCC) and regeneration in ethanol. The dissolution was studied by varying treatment temperature and time while acid concentration was kept constant at 70%. Dried NC material was studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD data revealed that the material has mainly an amorphous phase with a crystalline portion characteristic of cellulose II. TEM images confirmed the network nature of the produced material. It was noticed that, when dried, the NC material shrinks in volume while maintaining integrity and shape with an improved hardness upon shrinkage. Hardness and elastic modulus were investigated using nanoindentation and tablet hardness testing. Hardness measured via nanoindentation was 801 Pa with an elastic modulus of 9.9 GPa.

Original language	English (US)
Pages (from-to)	1088-1094
Number of pages	7
Journal	Carbohydrate Polymers
Volume	83
Issue number	3
DOIs	https://doi.org/10.1016/j.carbpol.2010.08.081
State	Published - Jan 30 2011

Keywords

Cellulose
Dissolution
Network
Regeneration
Sulfuric acid

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.carbpol.2010.08.081

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abstract = "High-yield networked cellulose (NC) material was prepared by sulfuric acid dissolution of microcrystalline cellulose (MCC) and regeneration in ethanol. The dissolution was studied by varying treatment temperature and time while acid concentration was kept constant at 70%. Dried NC material was studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD data revealed that the material has mainly an amorphous phase with a crystalline portion characteristic of cellulose II. TEM images confirmed the network nature of the produced material. It was noticed that, when dried, the NC material shrinks in volume while maintaining integrity and shape with an improved hardness upon shrinkage. Hardness and elastic modulus were investigated using nanoindentation and tablet hardness testing. Hardness measured via nanoindentation was 801 Pa with an elastic modulus of 9.9 GPa.",

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AU - Hashaikeh, R.

AU - Abushammala, H.

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N2 - High-yield networked cellulose (NC) material was prepared by sulfuric acid dissolution of microcrystalline cellulose (MCC) and regeneration in ethanol. The dissolution was studied by varying treatment temperature and time while acid concentration was kept constant at 70%. Dried NC material was studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD data revealed that the material has mainly an amorphous phase with a crystalline portion characteristic of cellulose II. TEM images confirmed the network nature of the produced material. It was noticed that, when dried, the NC material shrinks in volume while maintaining integrity and shape with an improved hardness upon shrinkage. Hardness and elastic modulus were investigated using nanoindentation and tablet hardness testing. Hardness measured via nanoindentation was 801 Pa with an elastic modulus of 9.9 GPa.

AB - High-yield networked cellulose (NC) material was prepared by sulfuric acid dissolution of microcrystalline cellulose (MCC) and regeneration in ethanol. The dissolution was studied by varying treatment temperature and time while acid concentration was kept constant at 70%. Dried NC material was studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD data revealed that the material has mainly an amorphous phase with a crystalline portion characteristic of cellulose II. TEM images confirmed the network nature of the produced material. It was noticed that, when dried, the NC material shrinks in volume while maintaining integrity and shape with an improved hardness upon shrinkage. Hardness and elastic modulus were investigated using nanoindentation and tablet hardness testing. Hardness measured via nanoindentation was 801 Pa with an elastic modulus of 9.9 GPa.

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KW - Dissolution

KW - Network

KW - Regeneration

KW - Sulfuric acid

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Acid mediated networked cellulose: Preparation and characterization

Abstract

Keywords

ASJC Scopus subject areas

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