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Properties of Cellulose Microfibers Extracted from Pineapple Leaves by Steam Explosion
Abstract:
The aim of this work is to compare properties of cellulose mats from pineapple leaf fibers with and without using the steam explosion method. Pineapple leaf fibers were divided into two groups. The first group was chemically treated with sodium hydroxide for 24 h, and directly used to prepare cellulose mats. The other group was pre-treated by steam explosion before treating with sodium hydroxide. Cellulose mats of microfibers were then prepared. The structure of pineapple leaf fibers was found to be changed due to the steam explosion observed by scanning electron microscopy. The effect of the steam explosion treatment was studied from chemical composition of steam-exploded fibers and unsteam-exploded fibers. Mechanical properties of mats of steam-exploded fibers were also investigated, compared to those of unsteam-exploded fiber mats. Mechanical properties of the mats of steam-exploded fibers were higher than those of the mats of unsteam-exploded fibers. This is due to the fact that the smaller-size fibrils can be found in the steam-exploded fibril mats.
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231-234
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Online since:
December 2015
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