Tailoring the Performance of Nano Silica Reinforced PA ‐6,6 Nanocomposite: Insight Into Their Structural, Thermo‐Mechanical, Tribological, and Scratch Resistance Behavior
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| Natura: | Artículo Open Access |
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Wiley
2025
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| author | Ranjan Kumar Debasish Mahato Sujeet Kumar Mishra Aditya Kumar Sudeepan Jayapalan |
| author_facet | Ranjan Kumar Debasish Mahato Sujeet Kumar Mishra Aditya Kumar Sudeepan Jayapalan Ranjan Kumar Debasish Mahato Sujeet Kumar Mishra Aditya Kumar Sudeepan Jayapalan |
| collection | Wiley Open Access |
| contents | Tailoring the Performance of Nano Silica Reinforced PA ‐6,6 Nanocomposite: Insight Into Their Structural, Thermo‐Mechanical, Tribological, and Scratch Resistance Behavior Ranjan Kumar Debasish Mahato Sujeet Kumar Mishra Aditya Kumar Sudeepan Jayapalan Polymer Composites ABSTRACT This study explores the structural, thermal, mechanical, tribological, and scratch resistance behavior of the silicon dioxide (SiO 2 ) nanoparticles reinforced with polyamide‐6,6 (PA‐6,6). Composites were fabricated through the melt‐mixing and injection molding techniques, with varying SiO 2 concentrations. Thermogravimetric analysis confirmed improved thermal stability of the nanocomposites relative to pristine PA‐6,6. Mechanical testing revealed that 3–5 wt.% is the optimum reinforcement of SiO 2 filler contents. Tensile strength increased by 24.6% at 3 wt.% of SiO 2 , while 5 wt.% conferred nearly 19% higher flexural strength compared to the unfilled PA‐6,6. Tribological performance was evaluated under varying normal loads and frequencies. At 3 wt.% SiO 2 and a frequency of 5 Hz, the coefficient of friction decreased by approximately 6% and 8% at 10 and 30 N, respectively, while at 25 Hz, further reductions of roughly 29% and 22% were observed at 30 and 50 N loads. Specific wear rate declined as SiO 2 content increased, with optimal values at 3 wt.% for 5 Hz and 5 wt.% for 25 Hz, accompanied by smoother worn surfaces, and diminished surface damage. Additionally, incorporating SiO 2 nanoparticles resulted in an increase in the scratch hardness characteristics, demonstrating enhanced mechanical integrity compared to the pure PA‐6,6 matrix. 10.1002/pc.70521 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/pc.70521 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_pc_70521 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Tailoring the Performance of Nano Silica Reinforced PA ‐6,6 Nanocomposite: Insight Into Their Structural, Thermo‐Mechanical, Tribological, and Scratch Resistance Behavior Ranjan Kumar Debasish Mahato Sujeet Kumar Mishra Aditya Kumar Sudeepan Jayapalan Polymer Composites Tailoring the Performance of Nano Silica Reinforced PA ‐6,6 Nanocomposite: Insight Into Their Structural, Thermo‐Mechanical, Tribological, and Scratch Resistance Behavior Ranjan Kumar Debasish Mahato Sujeet Kumar Mishra Aditya Kumar Sudeepan Jayapalan Polymer Composites ABSTRACT This study explores the structural, thermal, mechanical, tribological, and scratch resistance behavior of the silicon dioxide (SiO 2 ) nanoparticles reinforced with polyamide‐6,6 (PA‐6,6). Composites were fabricated through the melt‐mixing and injection molding techniques, with varying SiO 2 concentrations. Thermogravimetric analysis confirmed improved thermal stability of the nanocomposites relative to pristine PA‐6,6. Mechanical testing revealed that 3–5 wt.% is the optimum reinforcement of SiO 2 filler contents. Tensile strength increased by 24.6% at 3 wt.% of SiO 2 , while 5 wt.% conferred nearly 19% higher flexural strength compared to the unfilled PA‐6,6. Tribological performance was evaluated under varying normal loads and frequencies. At 3 wt.% SiO 2 and a frequency of 5 Hz, the coefficient of friction decreased by approximately 6% and 8% at 10 and 30 N, respectively, while at 25 Hz, further reductions of roughly 29% and 22% were observed at 30 and 50 N loads. Specific wear rate declined as SiO 2 content increased, with optimal values at 3 wt.% for 5 Hz and 5 wt.% for 25 Hz, accompanied by smoother worn surfaces, and diminished surface damage. Additionally, incorporating SiO 2 nanoparticles resulted in an increase in the scratch hardness characteristics, demonstrating enhanced mechanical integrity compared to the pure PA‐6,6 matrix. 10.1002/pc.70521 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Tailoring the Performance of Nano Silica Reinforced PA ‐6,6 Nanocomposite: Insight Into Their Structural, Thermo‐Mechanical, Tribological, and Scratch Resistance Behavior |
| topic | Polymer Composites |
| url | https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/pc.70521 |