Paper Title:
The Influence of Mercerised Kenaf Fibres Reinforced Polylactic Acid Composites on Dynamic Mechanical Analysis
  Abstract

The potential of using cellulose to reinforce the thermal stability of kenaf derived cellulose (KDC)/polylactic acid (PLA) composite was investigated in this study. The cellulose was derived from kenaf bast fibre which was chemically treated via chlorination and mercerisation processes. The composites with various loadings of cellulose (dry weight basis) ranging from 0% to 60% were produced by melt mixing and compression moulding. Dynamic mechanical properties namely storage modulus (E’), loss modulus (E”) and tan δ of the KDC/PLA composites and the commercial PLA were analysed and compared as a function of temperature. ESEM micrographs demonstrated that the mercerisation of kenaf fibres have successfully removed the lignin and hemicellulose, thus producing cellulose which can be observed by its rougher surface and greater size reduction than the raw fibre. The DMA results demonstrated that the storage modulus of 60% KDC/PLA composite is twice higher than the commercial PLA and the rest of the composites within a high temperature range (above 80°C). The glass transition temperatures (Tg) generated from the loss modulus curves exhibit that the peak of the loss modulus was shifted to higher temperature as the percentage of the cellulose loading was increased. These results show a better thermal stability of the composites when incorporated with the cellulose.

  Info
Periodical
Key Engineering Materials (Volumes 471-472)
Edited by
S.M. Sapuan, F. Mustapha, D.L. Majid, Z. Leman, A.H.M. Ariff, M.K.A. Ariffin, M.Y.M. Zuhri, M.R. Ishak and J. Sahari
Pages
815-820
DOI
10.4028/www.scientific.net/KEM.471-472.815
Citation
R. A. Talib, I. S. M. A. Tawakkal, A. Khalina, "The Influence of Mercerised Kenaf Fibres Reinforced Polylactic Acid Composites on Dynamic Mechanical Analysis", Key Engineering Materials, Vols. 471-472, pp. 815-820, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Patrícia Câmara Mileo, Matheus F. De Oliveira, Sandra M. Luz, George J.M. Rocha, Adilson Roberto Gonçalves
Abstract:The search for materials from renewable sources such as vegetable oil-based polymers, polyurethane based on castor oil represents a promising...
1143
Authors: Patricia Câmara Miléo, George Jackson de Moraes Rocha, Adilson Roberto Gonçalves
Chapter 5: Metal Alloy Materials
Abstract:The development in the area of natural-fibre-reinforced composites has greatly increased in recent years. Using castor oil polyurethane (PU)...
1103
Authors: Martin Borůvka, Chakaphan Ngaowthong, Luboš Bĕhálek, Jiří Habr, Petr Lenfeld
Chapter 2: Polymer and Composite Materials and Production Technologies
Abstract:Plant source-based stiff fiber reinforced bioplastics based on natural plant derived substances show promise of providing degradation back...
156