Influence of Stacking Sequence on the Mechanical and Water Absorption Characteristics of Areca Sheath-palm Leaf Sheath Fibers Reinforced Epoxy Composites

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

防起球和易护理（树脂整理）是两种最常见的纺织品整理剂. 本文对100%人造丝和50:50人造丝/棉混纺无烧毛缎纹织物的抗起球及易护理整理性能进行了评价. 本研究选择了四个因素: 织物混纺比、阿普坦N9211的浓度、Arkofix-NF和固化方法. 织物混纺比和固化方法在两个水平上进行测试，而Appretan N9211、Arkofix NF的浓度在三个水平上进行测试. 通过测试水洗前后起球、尺寸稳定性、撕裂强度、berger白度、黄度指数、平滑度、耐光性等8个响应变量，对整理剂的性能进行了评价. 研究表明，含有100g/l Appretan N9211、100g/l Arkofix NF和正常固化（在150°C下持续3分钟）的配方可改善起球、尺寸稳定性、光滑外观和撕裂强度. 然而，伯杰白度降低，黄度指数增加最小. 但织物的耐光性变化不大.

KEYWORDS:

• Areca sheath fiber
• palm leaf sheath fiber
• hand Lay-up
• hybridization
• epoxy composites
• scanning Electron Microscope

关键词:

• 缎子
• 人造丝
• Easy care容易护理
• Pilling起球
• 光滑外观
• 尺寸稳定性