ABSTRACT

An attempt has been made to investigate the effect of jute fabric structure, e.g., woven (plain, twill, matte), knitted, and nonwoven (parallel, cross, random laid) as reinforcement, on properties of the jute-polyester composite. The composite sheet was prepared with unsaturated polyester resin and jute fabric by hand lay-up technique using a male-female type mold. Tensile, flexural, impact, and water absorption properties of composite were measured. With the best composite based on properties, compression, shear, and hardness were also measured. Random laid nonwoven shows maximum tensile and impact strength but twill fabric produces maximum flexural strength. Matte fabric shows higher strength and lower elongation among the woven fabrics under experiment. Impact resistance and water absorption of composite from multi-layer fabric are higher compared to single-layer fabric. Composite from twill fabric shows maximum water penetration, whereas random laid nonwoven shows the lowest in similar condition. The study reveals that composite from knitted fabric is better than woven fabric but inferior to nonwoven fabric so far as mechanical properties are concerned. So, multi-layered needle punched jute nonwoven fabric from random laid web is recommended for jute-polyester composite, where higher tensile and impact strength with lower water absorption is required.

摘要

已尝试研究黄麻织物结构对黄麻-聚酯复合材料性能的影响，例如机织（平纹、斜纹、哑光）、针织和非织造（平行、交叉、无规铺设）作为增强材料。复合板是由不饱和聚酯树脂和黄麻织物通过手糊技术使用公母型模具制备的。测量了复合材料的拉伸、弯曲、冲击和吸水性能。使用基于性能的最佳复合材料，还测量了压缩、剪切和硬度。无规无纺布显示最大的拉伸和冲击强度，但斜纹织物产生最大的弯曲强度。在试验的机织物中，哑光织物表现出较高的强度和较低的伸长率。与单层织物相比，多层织物复合材料的抗冲击性和吸水性更高。斜纹织物复合材料的水渗透率最高，而随机铺设的无纺布在类似条件下的渗透率最低。研究表明，就机械性能而言，针织面料的复合材料优于机织织物，但不如非织造布。因此，建议将随机铺设的多层针刺黄麻非织造布用于黄麻-聚酯复合材料，其中需要更高的拉伸和冲击强度以及更低的吸水率。研究表明，就机械性能而言，针织面料的复合材料优于机织织物，但不如非织造布。因此，建议将随机铺设的多层针刺黄麻非织造布用于黄麻-聚酯复合材料，其中需要更高的拉伸和冲击强度以及更低的吸水率。研究表明，就机械性能而言，针织面料的复合材料优于机织织物，但不如非织造布。因此，建议将随机铺设的多层针刺黄麻非织造布用于黄麻-聚酯复合材料，其中需要更高的拉伸和冲击强度以及更低的吸水率。