and kapok fibers Reference: Mwaikambo, L.
Y. and Ansell, M. P., 2002. Chemical modification of hemp, sisal, jute, by alkalization. Journal of Applied Polymer Science, oakley racing 84 (12), pp. 2222 2234. Related documents: This repository does not currently have the full text of this item. You may be able to access a copy if URLs are provided below. Abstract Plant fibers are rich in cellulose and they are a cheap, easily renewable source of fibers with the potential for polymer reinforcement. The presence of surface impurities and the large amount of hydroxyl groups make plant fibers less attractive for reinforcement of polymeric materials. Hemp, sisal, jute, were subjected to alkalization by using sodium hydroxide. The thermal characteristics, crystalinity index, reactivity, and oakleys on sale surface morphology of untreated and chemically modified fibers have been studied using differential scanning calorimetry (DSC), X ray diffraction (WAXRD), oakley reflective sunglasses Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy, (SEM), respectively. Following alkalization the DSC oakley sunglass parts showed a rapid degradation of the cellulose between 0.8 and 8% NaOH, beyond which degradation was found to be marginal. There was a marginal drop in the crystallinity index of hemp fiber while sisal, jute, showed a slight increase in crystallinity at caustic soda concentration of 0.
8 30%. FTIR showed that kapok fiber was found to be the most reactive followed by jute, sisal, and then hemp fiber. SEM showed a relatively smooth surface for all the untreated fibers; however, after alkalization, all the fibers showed uneven surfaces.
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