Journal
JOURNAL OF THE TEXTILE INSTITUTE
Volume 112, Issue 11, Pages 1717-1729Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00405000.2020.1840690
Keywords
Raw palm fiber; Washingtonia; composite nonwovens; insulation; reinforcement; thermal conductivity
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Three new needle-punched nonwoven composites were developed by mixing palm fiber with cotton, wool, and polyester fibers. Weak adhesion was observed between the fibers, resulting in high porosity for Palm/Wool nonwoven and high tensile strength for Palm/Polyester nonwoven. Thermal resistances varied among the composites.
In this study, three new needle-punched nonwoven composites were successfully developed by mixing raw palm fiber with cotton, wool and polyester fibers at a ratio of 70:30 by weight. Each fiber and nonwoven material developed has been characterized physical, structural, mechanical and thermal properties. The results showed a weak adhesion between wool, cotton, and polyester fibers with palm fiber, this was confirmed by SEM analysis. In addition, the high diameter of the palm fibers resulted in high porosity of nonwoven materials. The thermal resistance is therefore enhanced. Maximum porosity is observed for nonwoven Palm/Wool (89.51%) compared to other nonwovens. Their thermal conductivity is then the lowest (36.84 mW/m.K at 25 degrees C). On the other hand, the highest tensile strength (162.30 N) was achieved by nonwoven Palm/ Polyester with a thermal conductivity of 38.76 mW/m.K at 25 degrees C. Furthermore, nonwovens' tensile strength did not significantly change after the climatic ageing test.
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