ABSTRACT

Hybridization of natural fibers in polymeric composites is used in various applications due to its many advantages. The present study deals with the development of four different tri-layer composites by varying the stacking sequence of areca sheath and palm leaf sheath fibers with epoxy as a matrix by conventional hand lay-up process. The assessment of the developed composite’s properties was done by analyzing tensile, flexural, compression, impact, shore D hardness, water absorption as per ASTM (D 638-14, D790-10, D695-15, D256-10, D2240-15, D570-96, respectively). It was found from the test results that the composites with skin layers of areca sheath and a core layer of palm leaf sheath fibers showed better mechanical properties with a higher ultimate tensile strength of 46 MPa, ultimate flexural strength of 51 MPa, ultimate compression strength of 54 MPa, and reduced water absorption proving its suitability for lightweight applications. A scanning Electron Microscope highlighted the fiber bonding, and void characteristics of the tested composites.

摘要

由于其许多优点，聚合物复合材料中的天然纤维杂化被用于各种应用。本研究通过传统的手糊工艺改变以环氧树脂为基质的槟榔鞘和棕榈叶鞘纤维的堆叠顺序，开发了四种不同的三层复合材料。根据 ASTM（D 638-14、D790-10、D695-15、D256-10、D2240-15、 D570-96，分别）。试验结果表明，以槟榔皮为皮层，以棕榈叶皮纤维为芯层的复合材料具有更好的力学性能，其极限抗拉强度为46 MPa，极限抗弯强度为51 MPa，极限抗压强度为 54 MPa，吸水率降低，证明其适用于轻量级应用。扫描电子显微镜突出了测试复合材料的纤维粘合和空隙特征。