Surface Modification Effects on the Mechanical Properties of Woven Jute Fabric Reinforced Laminated Composites

ABSTRACT

During recent years, crude material costs and increasing environmental concerns have led to the search for new reinforcement materials for composites. Consequently, interest on natural fiber reinforced polymer composites has increased significantly owing to their easy availability, light weight, and low price. In this study, surface modification effects were investigated on the mechanical properties of woven jute fabric reinforced laminated composite plates, experimentally. The woven jute fabrics were retained at the rates of 0%, 5%, 10%, and 15% NaOH solution for 15 days at room temperature for surface modification process. Then, woven jute/epoxy (WJE), woven jute/polyester (WJP), and woven jute/vinylester (WJV) laminated composite plates having six layers were produced using modified woven jute fabric. The mechanical properties of woven jute reinforced laminated composites, such as tensile, compression, and shear properties, were determined at room temperature. The experimental results were analyzed statistically with Weibull distribution having 85% reliability level. The statistical results showed that the surface modification process and type of matrix material have dramatically affected the mechanical properties of woven jute fabric reinforced laminated composites.

摘要

近年来，原材料成本和环境问题日益突出，有必要寻找新的复合材料增强材料。因此，天然纤维增强聚合物复合材料具有易使用、轻量、低价格的优点，因而得到了极大的关注。本实验研究了表面改性对黄麻织物增强复合材料层合板力学性能的影响。机织黄麻织物在室温下15天、5%、10%、15% NaOH溶液的表面改性率保持在0%左右。在那之后，编织黄麻/环氧树脂（WJE），编织黄麻/聚酯（桩），和编织黄麻/乙烯基酯（WJV）复合材料层合板的六层分别用改良编织黄麻织物。在室温下测定了机织黄麻增强复合材料的拉伸、压缩和剪切性能。对实验结果进行统计分析，Weibull分布具有85%的可靠度。统计结果表明，表面改性工艺和基体材料对机织黄麻织物增强复合材料的力学性能有显著影响。

KEYWORDS:

• Surface modification
• woven jute fabric
• epoxy resin
• polyester resin
• vinylester resin
• mechanical properties
• Weibull distribution

关键词:

• 表面改性
• 黄麻织物
• 环氧树脂
• 聚酯树脂
• 乙烯基酯树脂
• 力学性能
• 韦布尔分布。