Renewable resource based 鈥渁ll green composites鈥?from kenaf biofiber and poly(furfuryl alcohol) bioresin

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• 作者：Harekrishna Deka^a ; ^b ; Manjusri Misra^a ; ^b ; Amar Mohanty^a ; ^b ; ^{mohanty@uoguelph.ca}
• 关键词：&ldquo ; All green composite&rdquo ; Poly(furfuryl alcohol) ; Water absorption ; Mechanical properties ; Kenaf fiber
• 刊名：Industrial Crops and Products
• 出版年：2013
• 期刊代码：56_09266690
• 类别：abs
• 出版时间：January, 2013
• 卷：41
• 期：Complete
• 页码：94-101
• 文件大小：1388 K

摘要

The present study investigated the interphasic and physico-mechanical properties of 鈥渁ll green composites鈥?obtained from kenaf natural fiber and poly(furfuryl alcohol) bioresin. The water absorption behavior and the effect on performance properties of the green composites is also a prime focus of this study. The optimum properties of the green composites were achieved by 20 wt%fiber loading which showed the significant increments in tensile strength (310%), storage modulus (123%), and flexural strength (48%). Tensile moduli were compared with theoretical calculations from the rule of mixture (ROM). Adequate retention of mechanical properties after water absorption - up to 83%for tensile, 89%for flexural and 82%for impact strength - were observed after subjecting the composites to boiling water. The maximum water uptake (7.7%) at saturation point was obtained from non-Fickian water absorption curves. These composites appear compact and void-free, and possess good fiber-matrix interactions.