Influence of Natural Filler on Mechanical Properties of Hemp/Kevlar Hybrid Green Composite and Analysis of Change in Material Behavior Using Acoustic Emission

ABSTRACT

This work is focused on development of hybrid composites with better toughness and hardness by including natural filler reinforcements. The changes in the behavior of the composite due to filler inclusion were evaluated through acoustic emission technique to reveal the mechanism behind the improvement in properties. The hybrid composite was developed with Hemp/Kevlar fibers in (60:40) ratio by weight as reinforcement. To improve the shock resistance, bio-fillers palm and coconut shell mixture in (1:1) ratio was added to the matrix at different wt.% of resin. Characterization of the material was carried out after the flexural, impact and hardness tests.

摘要

本研究的重点是通过加入天然填料增强体，开发出具有较好韧性和硬度的混杂复合材料。通过声发射技术研究了填料夹杂对复合材料性能的影响，揭示了填料夹杂改善复合材料性能的机理. 以大麻/芳纶纤维（60:40）的重量比为增强体，制备了混杂复合材料。为提高树脂的耐震性，在不同树脂质量分数下，将生物填料棕榈壳和椰壳按（1:1）的比例混合到基体中. 在弯曲、冲击和硬度试验后对材料进行了表征.

KEYWORDS:

• Kevlar
• hemp
• hybrid composite
• impact
• acoustic emission

关键词:

• 凯夫拉尔
• 大麻
• 混杂复合材料
• 影响
• 声发射