Scratch Resistance and Tribological Enhancement of Epoxy Composites Reinforced with Chopped Glass Fiber and Nano Silica Through Taguchi Analysis.

IF 4.9 3区工程技术 Q1 POLYMER SCIENCE

Polymers Pub Date : 2025-09-21 DOI:10.3390/polym17182550

Elanur Ozun, Reyhan Ceylan, Mustafa Özgür Bora, Sinan Fidan, Satılmış Ürgün, Mehmet İskender Özsoy, Erman Güleç

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引用次数: 0

Abstract

This study examines the incorporation of chopped glass fiber and nano-silica into epoxy, focusing on their effects on the tribological and mechanical properties. Three reinforcement ratios (1 wt.%, 3 wt.%, and 5 wt.%) were analyzed by scratch tests and profilometric analysis. The coefficient of friction (COF), scratch depth, and scratch width values of the unreinforced epoxy resin were measured as 0.45, 37.73 µm and 479 µm, respectively. The addition of glass fibers contributed to improved scratch performance by restricting material removal and stabilizing groove morphology, although higher fiber ratios caused an increase in COF. The results indicated that nano-silica increased scratch resistance with a COF of 0.42 at 5 wt.%, giving a scratch depth of 19.92 µm and a scratch width of 166 µm. Glass fiber also improved scratch performance, although there were high COF values for higher ratios, which could be due to the aggregation effect of the fibers. Statistical validation of the results was carried out through the Taguchi method and ANOVA analyses. These analyses showed that reinforcement type and ratio played an important role in scratch behavior. SEM analyses of worn surfaces showed that nano-silica can dissipate stress and minimize plastic deformation to yield improved scratch morphology. Overall, the results emphasize the complementary role of glass fiber and nano-silica reinforcements in improving the scratch resistance of epoxy resin for industrial applications.

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短切玻璃纤维和纳米二氧化硅增强环氧复合材料的耐刮擦和摩擦学增强。

本研究考察了在环氧树脂中掺入短切玻璃纤维和纳米二氧化硅，重点研究了它们对环氧树脂摩擦学和力学性能的影响。通过划痕试验和轮廓分析分析了三种增强率（1 wt.%、3 wt.%和5 wt.%）。测得未增强环氧树脂的摩擦系数（COF）、划痕深度和划痕宽度分别为0.45、37.73和479µm。玻璃纤维的加入通过限制材料的去除和稳定凹槽形态来改善划痕性能，尽管较高的纤维比例会导致COF的增加。结果表明，在5% wt.%时，纳米二氧化硅增加了抗划伤性能，COF为0.42，划伤深度为19.92µm，划伤宽度为166µm。玻璃纤维也改善了划痕性能，尽管较高比例的COF值较高，这可能是由于纤维的聚集效应。通过田口法和方差分析对结果进行统计验证。这些分析表明，钢筋类型和比例对划伤行为有重要影响。磨损表面的扫描电镜分析表明，纳米二氧化硅可以消散应力，最小化塑性变形，从而改善划痕形貌。总的来说，研究结果强调了玻璃纤维和纳米二氧化硅增强剂在提高环氧树脂抗划伤性能方面的互补作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polymers POLYMER SCIENCE-

CiteScore

8.00

自引率

16.00%

发文量

4697

审稿时长

1.3 months

期刊介绍： Polymers (ISSN 2073-4360) is an international, open access journal of polymer science. It publishes research papers, short communications and review papers. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Polymers provides an interdisciplinary forum for publishing papers which advance the fields of (i) polymerization methods, (ii) theory, simulation, and modeling, (iii) understanding of new physical phenomena, (iv) advances in characterization techniques, and (v) harnessing of self-assembly and biological strategies for producing complex multifunctional structures.