短切玄武岩纤维和二硫化钼增强环氧树脂基复合材料的微观结构、性能及磨损行为的实验研究

Experimental Investigations on Microstructure, Properties and Wear Behavior of Chopped Basalt Fiber and Molybdenum Disulfide Reinforced Epoxy Matrix Composites.

作者信息

P C Santhosh Kumar, Ravichandran Manickam, Mohanavel Vinayagam, Radhika Nachimuthu

机构信息

Department of Mechanical Engineering, K. Ramakrishnan College of Engineering, Tiruchirappalli 621112, Tamil Nadu, India.

Centre for Sustainable Materials Research, Department of Mechanical Engineering, Academy of Maritime Education and Training (AMET) Deemed to be University, Kanathur, Chennai 603112, Tamil Nadu, India.

出版信息

Polymers (Basel). 2025 May 16;17(10):1371. doi: 10.3390/polym17101371.

DOI:10.3390/polym17101371

PMID:40430666

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12115166/

Abstract

This study examined the impact of molybdenum disulfide (MoS) addition as a filler in epoxy composites reinforced with chopped basalt fibers (CBF), maintaining the basalt fiber content at a constant 40 wt. %. The investigation focused on physical, microstructural, mechanical, and sliding-wear properties. Testing revealed that tensile, impact, compressive, and flexural strengths improved with MoS content from 0 to 8 wt. %. However, at 12 wt. % loading, these properties declined due to uneven dispersion and particle agglomeration. An increase in hardness was observed with rising MoS content, with a maximum value of 98 HV at 16 wt. %. Wear testing was conducted using a Taguchi L16 orthogonal array, evaluating the effects of multiple parameters. The results indicated that MoS content had the most significant influence on wear rate (WR), followed by applied load (P) and sliding distance (D), while sliding velocity (V) had minimal impact on specific wear rate (SWR) and coefficient of friction (COF). Scanning electron microscopy (SEM) was used to analyze wear mechanisms, and analysis of variance (ANOVA) confirmed the optimal conditions.

摘要

本研究考察了在以短切玄武岩纤维（CBF）增强的环氧复合材料中添加二硫化钼（MoS）作为填料的影响，同时将玄武岩纤维含量保持在恒定的40 wt.%。研究重点关注物理、微观结构、力学和滑动磨损性能。测试表明，随着MoS含量从0 wt.%增加到8 wt.%，拉伸强度、冲击强度、压缩强度和弯曲强度均有所提高。然而，在12 wt.%的添加量下，由于分散不均和颗粒团聚，这些性能有所下降。随着MoS含量的增加，硬度也随之增加，在16 wt.%时达到最大值98 HV。使用田口L16正交阵列进行磨损测试，评估多个参数的影响。结果表明，MoS含量对磨损率（WR）影响最为显著，其次是施加的载荷（P）和滑动距离（D），而滑动速度（V）对特定磨损率（SWR）和摩擦系数（COF）的影响最小。使用扫描电子显微镜（SEM）分析磨损机制，并通过方差分析（ANOVA）确定了最佳条件。