This work presents the effect of chemical treatment of short jute fibers using alkali, potassium permanganate, and silane treatment on the mechanical properties of jute‐polypropylene (PP) composites. The chemically treated jute fibers were compounded at 30% weight fraction with PP granules in twin‐screw extruder, and the composite pellets were later injection molded to obtain the specimens for the study. The optimum parameters for the respective chemical treatments used in this study were followed as per the literature. The effectiveness of the chemical treatment carried out was studied using Fourier transform infrared spectroscopy and scanning electron microscopy. The mechanical characterization comprising tensile test, flexural test, impact test, and microhardness test were conducted on jute‐PP composites. In addition, the effect of chemical treatment on the water absorption kinetics of the jute‐PP composites was studied. The diffusion coefficient of the jute‐PP composite was determined using the approximate solution of Fick's model. The silane‐treated jute‐PP composites show an increase in tensile strength, tensile modulus, and flexural modulus by nearly 6%, 22%, and 20%, respectively, compared to untreated jute‐PP composite. The moisture absorption study reveals that the silane‐treated jute‐PP composite is the most effective.

中文翻译：

---

化学处理对黄麻-聚丙烯复合材料力学性能和水扩散特性的影响

这项工作介绍了使用碱，高锰酸钾和硅烷处理化学处理短麻黄纤维对黄麻聚丙烯（PP）复合材料的机械性能的影响。经过化学处理的黄麻纤维以30％的重量分数与PP颗粒在双螺杆挤出机中混合，然后将复合颗粒注塑成型以获得用于研究的样品。根据文献，遵循了本研究中使用的各种化学处理的最佳参数。使用傅里叶变换红外光谱法和扫描电子显微镜研究了进行的化学处理的有效性。对黄麻-PP复合材料进行了机械表征，包括拉伸测试，弯曲测试，冲击测试和显微硬度测试。此外，研究了化学处理对黄麻-PP复合材料吸水动力学的影响。黄麻-PP复合材料的扩散系数是使用Fick模型的近似解确定的。与未处理的黄麻-PP复合材料相比，经硅烷处理的黄麻-PP复合材料的抗张强度，拉伸模量和弯曲模量分别提高了近6％，22％和20％。吸湿性研究表明，硅烷处理的黄麻-PP复合材料最有效。分别与未处理的黄麻-PP复合材料相比。吸湿性研究表明，硅烷处理的黄麻-PP复合材料最有效。分别与未处理的黄麻-PP复合材料相比。吸湿性研究表明，硅烷处理的黄麻-PP复合材料最有效。