Abstract
The natural fiber, such as bamboo, hemp, ramie, jute, and coir, has been proposed as an alternative fiber to replace the synthetic fibers. Coir fiber, which is physically recognized as coarse and stiff fiber with red-brown colored, comprises lignin, cellulose, hemicellulose, and other plant substance. Coir fibers capability can stretch beyond the elastic limit with no rupture and excellent resistance to microbiological and salt degradation. Therefore coir fiber can be applied as an alternative material for a marine structure such as boat and small crafts. In this paper, the scanning electron microscopy (SEM) observation was made to evaluate the influence of alkali treatment (2% and 6% NaOH) and the drying method, including sun drying, oven, and air drying. Progressive changes in surface morphology due to the two kinds of coir fibre treatments were presented.
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