The mechanical properties of natural fibers are influenced by the composition, structure and number of defects in a fiber. Under stress, tensile failure occurs by intercellular and/or intracellular modes. In fibers having higher cellulose content such as those in bananas and pineapples, cracks propagate through weak bonding between cells, causing intercellular fracture without the removal of microfibrils [25]. By contrast, cracks propagate through the cells in fibers with lower cellulose content such as coir,resulting in intracellular fracture with microfibrillar pullout [8,25]. Elongation of fibers depends on the degree of crystallinity, orientation and the angle of
the microfibrils to the fiber axis. The high extensibility of coir fibers is primarily a result of the perfect helical spirals formed by the microfibrils around the fiber axis
The mechanical properties of natural fibers are influenced by the composition, structure and number of defects in a fiber. Under stress, tensile failure occurs by intercellular and/or intracellular modes. In fibers having higher cellulose content such as those in bananas and pineapples, cracks propagate through weak bonding between cells, causing intercellular fracture without the removal of microfibrils [25]. By contrast, cracks propagate through the cells in fibers with lower cellulose content such as coir,resulting in intracellular fracture with microfibrillar pullout [8,25]. Elongation of fibers depends on the degree of crystallinity, orientation and the angle ofthe microfibrils to the fiber axis. The high extensibility of coir fibers is primarily a result of the perfect helical spirals formed by the microfibrils around the fiber axis
การแปล กรุณารอสักครู่..
![](//thimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)