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Vol. 27. Issue 2.
Pages 121-135 (July - December 2015)
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Vol. 27. Issue 2.
Pages 121-135 (July - December 2015)
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Physical Characterization of Natural Lignocellulosic Single Areca Fiber
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Dhanalakshmi Sampathkumara,b, Ramadevi Punyamurthya,b, Basavaraju Bennehallic,
Corresponding author
basavaraju_b@yahoo.co.in

Corresponding author.
, Srinivasa Chikkol Venkateshappad
a Department of Chemistry, Jawaharlal Nehru Technological University, Hyderabad-500 085, Telangana, India
b Department of Chemistry, KLE Society's BVB College of Engineering & Technology, Hubballi-580031, Visvesvaraya Technological University, Karnataka, India
c Department of Chemistry, Alva's Institute of Engineering & Technology, Mijar-574225, Visvesvaraya Technological University, Karnataka, India
d Department of Mechanical Engineering, GM Institute of Technology, Davangere-577006, Visvesvaraya Technological University, Karnataka, India
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Abstract

In the recent decades, natural lignocellulosic fibers are used as reinforcements in the fabrication of polymer composites which are considered as most promising materials in structural applications due to its superior properties, eco-friendly nature and economic advantages. The main drawback of usage of these natural fibers as reinforcement for composites is their low degradation temperatures around 200 oC, which make them inadequate for processing temperatures above 200 oC. Hence, the aim of this research work is to improve thermal stability of natural lignocellulosic areca fibers by various chemical treatments and to assess the influence of chemical treatments on the crystallinity of areca fibers. So, in this study, areca fibers were subjected to chemical treatments such as NaOH, KMnO4, C6H5COCl, H2C=CHCOOH and CH3CO-O-OC-CH3 to improve its thermal stability. Thermal stability and crystallinity of untreated and chemically treated areca fibers were characterized by TGA-DTG and XRD studies respectively. The results from TGA-DTG data have shown improved thermal stability for chemically treated areca fibers and the results from XRD analysis indicated the little decrease in percentage crystallinity and crystallinity index for the chemically treated areca fibers. The SEM micrographs confirmed the chemical modification and its influence on the morphological aspects of areca fibers.

Keywords:
areca fibers
chemical treatments
TGA-DTG analysis
XRD analysis
SEM image analysis.
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