https://orcid.org/0000-0002-1012-7510
![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
ABSTRACT
The utilization of the plant-based fiber-reinforced composites is being increased in recent days. The plant-based fiber used in the present study was extracted from the Prosopis juliflora plant. Alkali treatment effects of the fiber-reinforced composites on the static and dynamic mechanical and dielectric properties were investigated and compared with the untreated fiber-reinforced composites in the current work. Tests like static and dynamic mechanical, dielectrical, scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermogravimetric analysis (TGA) were carried out on both treated and untreated composite specimens. The temperature was varied from 25°C to a maximum temperature of 180°C to investigate the dynamic mechanical properties at a constant frequency of 2 Hz. Dielectric properties were also analyzed using impedance analyzer and compared the results of both treated and untreated composites. Characterization techniques like SEM, TGA, and XRD were carried out on both the treated and untreated composite specimens to probe the bonding and crystallinity among the composites. The results of SEM and XRD showed that the bonding and crystallinity improved with the fiber treatment such that the thermal stability also improved. The improved properties of the composite samples extend the applications in the field of automotive, packaging, construction, etc.
摘要
近年来，植物基纤维增强复合材料的利用率不断提高. 本研究中使用的植物基纤维是从prosopis juliflora植物中提取的. 研究了碱处理对纤维增强复合材料静、动态力学性能和介电性能的影响，并与未经碱处理的纤维增强复合材料进行了比较. 对处理前后的复合材料试件进行了静态力学、动态力学、电化学、SEM、XRD和热重分析等测试. 将温度从25℃变化到180℃的最高温度，以研究恒定频率为2 Hz时的动态力学性能. 利用阻抗分析仪对复合材料的双电性能进行了分析，并与处理前后的结果进行了比较. 采用SEM、TGA和XRD等表征技术对处理前后的复合材料进行了表征，探讨了复合材料的结合和结晶性能. SEM和XRD分析结果表明，纤维经热处理后，结合力和结晶度均有所提高，热稳定性也有所提高. 复合材料样品性能的提高，拓展了其在汽车、包装、建筑等领域的应用.