Study on Distilled/Sea Water Absorption Behaviour Influenced by Non-Uniform Long Piled up Coir Fiber Composites

Nair, Moothy M and Kamath, Shambhavi M and Shetty, Nagaraj (2016) Study on Distilled/Sea Water Absorption Behaviour Influenced by Non-Uniform Long Piled up Coir Fiber Composites. In: International Conference on Emerging Trends in Engineering, 12th and 13th May 2013, NITTE Karnataka.

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Abstract

Long coir fibers tend to have higher strength than short coir fibers. Taking this into consideration non uniform long coir fibers reinforced epoxy composites impregnated with sawdust filler was fabricated using hand-layup technique as a result of polymer reduction. Moisture absorption test was conducted as per ASTM D 570 standard. Piled up coir fibers offer varying resistance against penetration of epoxy polymer matrix through the fibers resulting in Non-uniform bonding throughout the composite laminate. Water absorption pattern of composites exhibited Fickian behaviour at room temperature (27ºC). Moisture absorption test in sea water and distilled water at room temperature showed higher value of moisture absorption percentage and diffusion coefficient due to weak bonding between fiber and matrix causing fiber to absorb more amount of water. Composite specimens were photographed to analyse the macroscopic defects during fabrication, machining and water immersion

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Composite, Diffusion coefficient, Epoxy, Macroscopic defects, Piled coir fibers, Sawdust, Tensile strength.
Subjects: Engineering > MIT Manipal > Civil Engineering
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 12 Jul 2016 12:09
Last Modified: 12 Jul 2016 12:09
URI: http://eprints.manipal.edu/id/eprint/146558

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