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Fabrication and Mechanical/Thermal Properties of Composites from Cotton Linter and Urea Formaldehyde Resin


Affiliations
1 Polymer Research Laboratory, Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh
2 Pilot Plant and Process Development Centre, Bangladesh Council for Scientific and Industrial Research, Dhaka, Bangladesh
 

The aim of this study is to prepare composite from commercial valueless cotton linter cellulose (CLC) of textile mills and garment industries, and urea formaldehyde (UF) resin. The alkali-treated cellulose (ATC), bleached cellulose (BLC) and microcrystalline cellulose (MCC) have been prepared from CLC. A novel fabrication method of CLC, ATC, BLC and MCC reinforced with urea formaldehyde resin has been developed. These composites are subsequently subjected to evaluation of their mechanical (tensile, flexural, hardness) and thermal (TGA, DTA, DTG) properties. The MCC-UF composites show the highest tensile strength (TS), flexural strength (FS) and Vickers micro hardness number (VHN) having the corresponding values 48.09 MPa, 34.05 MPa and 521.33 VHN respectively. The lowest mechanical values are found for CLC-UF composites (TS 32.96 MPa, FS21.28 MPa and VHN201.00). It is also revealed that the mechanical properties of the composites increase with the increase in fibre loading up to 5% and beyond this loading, these values are decreased. The morphological changes in flexural fractured surface are clearly observed by scanning electron microscopy measurement. The thermal stability of the composites is influenced by the filler content. The thermal stability of MCC-UF composite is found slightly higher than those of other composites.

Keywords

Composite, Cotton Linters, Microcrystalline Cellulose, Mechanical Properties, Thermal Properties, Urea Formaldehyde Resin.
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  • Fabrication and Mechanical/Thermal Properties of Composites from Cotton Linter and Urea Formaldehyde Resin

Abstract Views: 188  |  PDF Views: 108

Authors

Moshiur Rahman
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh
G. M. Arifuzzaman Khan
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh
S. M. Abdur Razzaque
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh
M. Ahsanul Haque
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh
M. A. Gafur
Pilot Plant and Process Development Centre, Bangladesh Council for Scientific and Industrial Research, Dhaka, Bangladesh
M. Shamsul Alam
Polymer Research Laboratory, Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh

Abstract


The aim of this study is to prepare composite from commercial valueless cotton linter cellulose (CLC) of textile mills and garment industries, and urea formaldehyde (UF) resin. The alkali-treated cellulose (ATC), bleached cellulose (BLC) and microcrystalline cellulose (MCC) have been prepared from CLC. A novel fabrication method of CLC, ATC, BLC and MCC reinforced with urea formaldehyde resin has been developed. These composites are subsequently subjected to evaluation of their mechanical (tensile, flexural, hardness) and thermal (TGA, DTA, DTG) properties. The MCC-UF composites show the highest tensile strength (TS), flexural strength (FS) and Vickers micro hardness number (VHN) having the corresponding values 48.09 MPa, 34.05 MPa and 521.33 VHN respectively. The lowest mechanical values are found for CLC-UF composites (TS 32.96 MPa, FS21.28 MPa and VHN201.00). It is also revealed that the mechanical properties of the composites increase with the increase in fibre loading up to 5% and beyond this loading, these values are decreased. The morphological changes in flexural fractured surface are clearly observed by scanning electron microscopy measurement. The thermal stability of the composites is influenced by the filler content. The thermal stability of MCC-UF composite is found slightly higher than those of other composites.

Keywords


Composite, Cotton Linters, Microcrystalline Cellulose, Mechanical Properties, Thermal Properties, Urea Formaldehyde Resin.

References