Effect of Tasar Silk Waste on the Mechanical Properties of Jute/Grewia Optiva Fibers Reinforced Epoxy Laminates

ABSTRACT

Waste collected from the agricultural sector can be used as reinforcement in the composites to lower the material cost and encourage the renewable material to reduce carbon footprints. Hence, the current investigation evaluates the physical, mechanical, and wear properties of hybrid composite laminates comprising Tasar silk waste (a waste obtained from textile industries), Jute fibers, Grewia optiva (Bhimal tree) and epoxy resin. For this, epoxy reinforced Jute/Grewia optiva fibers laminates were fabricated with varying percentages of Tasar silk waste (TSW) (0, 4, 6, 8, 10, 12, and 14 wt.%). Experimental results reveal that the void fraction increases from 1.8% to 3.4%; an increase in the water absorption took place at all percentages of TSW and become saturated after 216 hours of immersion. The tensile strength increased from 54.44 MPa to 79.16 MPa, and flexural strength increased from 21.91 MPa to 51.22 MPa with 14 wt.% of TSW. Vickers hardness and impact strength was maximum at 12 wt.% of TSW loading. Specific wear rate was observed as inversely proportional to sliding velocity, and directly proportional to normal load. Statistical analysis of the specimens was carried out using the ANOVA technique, which confirms a significant difference between the obtained results.

摘要

天然纤维复合增强材料可以取代一些传统材料, 如金属和木材. 本工作介绍了在碱性溶液处理中使用棕榈纤维增强环氧复合材料的机械特性. 以氢氧化钠溶液 (NaOH) 为处理剂, 采用不同体积百分比 (20%, 30%, 40%和50%) 的环氧树脂增强棕榈纤维制备复合材料试样, 并通过手糊法对较好的加载条件进行评价. 为了按照ASTM标准评估复合材料的强度, 对由此制备的试样进行了弯曲, 拉伸, 冲击, ILSS和硬度等不同机械性能的测试. 发现40体积%的表面改性棕榈纤维复合材料EC40的上述性能大于未改性棕榈纤维复合材料EC40. 该复合材料的最高拉伸强度为162MPa, 弯曲强度为185MPa, ILSS为27MPa. 同样, 经表面处理的EC40复合材料名称提高了质量损失稳定性. 即使在3300°C以上, 复合材料也更稳定. SEM图像显示与基体的附着力得到改善.

KEYWORDS:

• Tasar silk waste
• mat
• flexural strength
• sliding velocity

关键词:

• 棕榈纤维
• 机械性能

Disclosure statement

No potential conflict of interest was reported by the author(s).