Preparation And Characterization Of Cellulose Microfibrils From The Selected Agricultural By- Products

Norhidaya, Mohd Othman (2006) Preparation And Characterization Of Cellulose Microfibrils From The Selected Agricultural By- Products. [Final Year Project Report] (Unpublished)

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Abstract

In this study, corn cobs and sugarcane bagasse were the agricultural by-products being used for preparing cellulose microfibrils. Cellulose microfibrils were extracted from these agricultural by-products by a combination of chemical and mechanical treatments. Physical characterization showed that cellulose microfibrils from corn cobs possessed rougher and more uneven surface morphology as coompared with Cellulose microfibrils of sugarcane bagasse. In both cases. the Cellulose microfibrils were not well separated. large variations in the mean microfibrils length were observed for CF11 cellulose powder (542 um), corn cobs (1410 um) and sugarcane bagasse (559 um). However. the width of cellulose microfibrils from all these samples were observed to be quite similar. All FTIR spectra of all cellulose microfibrils were observed to be rather similar to cellulose microfibrils of the CF11 cellulose powder. This result showed that the extraction process has been effective for the extraction of cellulose microfibrils from corn cobs and sugarcane bagasse. The presence of very similar characterization absorption peaks for these cellulose' microfibrils samples showed that these cellulose microfibrils samples would exhibit similar chemical properties. The percentage yield of cellulose microfibrils from corn cobs and sugarcane bagasse were observed to be 7.8 % and 2.45 % respeetive1y.

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