Scholarlink

<p>The present study investigates the dry sliding wear behavior of Kevlar and carbon nanotube (CNT)-reinforced polypropylene (PP) composites. Three compositions were fabricated using the hand layup technique: C1 [PP (70 wt.%)—Kevlar (30 wt.%)], C2 [PP (70 wt.%)—Kevlar (27 wt.%)—CNT (3 wt.%)], and C3 [PP (70 wt.%)—Kevlar (23 wt.%) - CNT (7 wt.%)]. The effects of load (5-15 N) and disk speed (800-1200 RPM) on the specific wear rate (SWR) and coefficient of friction (COF) were evaluated using Taguchi’s L27 orthogonal array. The results revealed that composite C3 exhibited the lowest SWR of 1687 µm<sup>3</sup>/m, representing a 11.7% reduction compared to C1, while the COF decreased by approximately 9.5% at higher CNT content. ANOVA analysis confirmed that load contributed 45.3% and speed 32.6% to wear rate variation, with the proposed model showing strong predictive capability (R<sup>2</sup> = 99.0% for SWR, R<sup>2</sup> = 96.9% for COF). SEM micrographs revealed distinct micro-striations, fiber pull-out, and delamination patterns, with C1 displaying improved interfacial adhesion and less surface damage compared to CNT-filled counterparts. Overall, the inclusion of CNT improved stiffness and reduced frictional losses, demonstrating the potential of Kevlar/CNT/PP composites for automotive and aerospace applications requiring lightweight materials with high wear resistance.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study on the Impact on Optimization of Kevlar-Carbon Nanotube-Reinforced Polypropylene Composites by Taguchi Approach

  • 期刊论文

  • 发表日期：

    2025年12月27日

查看全文
  • T. S. Sachit,
  • T. R. Mohan,
  • B. T. Ramesh,
  • Ashok R. Banagar,
  • Ananthakrishna Somayaji,
  • Md. Kareemullah,
  • Aseel Smerat,
  • Md. Amir Khan

摘要

The present study investigates the dry sliding wear behavior of Kevlar and carbon nanotube (CNT)-reinforced polypropylene (PP) composites. Three compositions were fabricated using the hand layup technique: C1 [PP (70 wt.%)—Kevlar (30 wt.%)], C2 [PP (70 wt.%)—Kevlar (27 wt.%)—CNT (3 wt.%)], and C3 [PP (70 wt.%)—Kevlar (23 wt.%) - CNT (7 wt.%)]. The effects of load (5-15 N) and disk speed (800-1200 RPM) on the specific wear rate (SWR) and coefficient of friction (COF) were evaluated using Taguchi’s L27 orthogonal array. The results revealed that composite C3 exhibited the lowest SWR of 1687 µm3/m, representing a 11.7% reduction compared to C1, while the COF decreased by approximately 9.5% at higher CNT content. ANOVA analysis confirmed that load contributed 45.3% and speed 32.6% to wear rate variation, with the proposed model showing strong predictive capability (R2 = 99.0% for SWR, R2 = 96.9% for COF). SEM micrographs revealed distinct micro-striations, fiber pull-out, and delamination patterns, with C1 displaying improved interfacial adhesion and less surface damage compared to CNT-filled counterparts. Overall, the inclusion of CNT improved stiffness and reduced frictional losses, demonstrating the potential of Kevlar/CNT/PP composites for automotive and aerospace applications requiring lightweight materials with high wear resistance.