Mechanical behavior and water absorption in sisal/glass hybrid composites

ABSTRACT This study aimed to assess the effect of hybridization on thermomechanical properties and water absorption of composite materials, by introducing sisal fiber tissue into the material. To that end, two composite material plates were manufactured, the first with five layers of E-glass reinforcement mat and the second with three layers of E-glass fiber interspersed with two layers of sisal fibers, both used as an orthophthalic polyester resin matrix. The material was then submitted to tensile, three-point bending and water absorption tests. It was observed that hybridization causes a change in both the final strength and stiffness of the material.

摘要 本研究旨在通过向复合材料中引入剑麻纤维组分，评估混杂复合对复合材料热机械性能与吸水性能的影响。为此，制备了两块复合材料板材：第一块包含五层E-玻璃纤维增强毡（E-glass reinforcement mat），第二块由三层E-玻璃纤维与两层剑麻纤维交替铺设而成，两者均以邻苯二甲酸聚酯树脂基体（orthophthalic polyester resin matrix）作为基体材料。随后对所制备的材料开展了拉伸试验、三点弯曲试验与吸水性能测试。研究结果表明，混杂复合会改变材料的最终强度与刚度。