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<p>Current research aims to produce and evaluate the functional characteristics of polymer composite laminates with different sequences of glass (G), sisal (S), and kenaf (K) fiber packed with a constant weight% (% by wt) of nanographene and different concentrations of multi-walled carbon nanotubes (MWCNT) through compression mould process, which is executed at 140&#xa0;°C temperature and 150&#xa0;MPa pressure. The developed composite laminates like sequence 1, sequence 2, and sequence 3 contained G-S-S-S-S-K-K-K-K-G, G-S-S-K-K-K-K-S-S-G and G-K-K-S-S-S-S-K-K-G, respectively. To enhance the natural fiber quality and remove hemi-cellulose, the fibers are subjected to chemical surface treatment and used for composite fabrication. The effectiveness of nanographene and MWCNT on mechanical, fracture toughness, water absorption resistance and thermal stability properties of composite laminates is studied. Based on the findings, the sequence 3 (G-K-K-S-S-S-S-K-K-G) composite laminate, featuring nanographene and 3% (by wt) MWCNT, achieved optimum tensile strength, flexural strength, microhardness, and fracture toughness values of 116&#xa0;MPa, 141&#xa0;MPa, 84 HV, and 2.49 MPam<sup>0.5</sup>, which is higher than the other samples. Furthermore, the surface-treated natural fiber effectively bonded with glass and kenaf fiber, exhibiting high water absorption resistance (3.7%) and higher thermal stability compared to other composite laminates. This S3 composite represents the trade-off between weight and performance in automotive lightweight cabinet and dashboard applications.</p> Graphical abstract <p></p>

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Fiber sequential action and combinations of nanographene and multi-walled carbon nanotubes on characteristics study of sustainable composite laminates

  • 期刊论文

  • 发表日期：

    2026年6月22日

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  • S. Venkatesa Prabhu,
  • N. Nagabhooshanam,
  • Prahalad Singh Parihar,
  • Navin Kedia,
  • H. Jemmy Christy,
  • G Satya,
  • Ramya Maranan,
  • T. Thirugnanasambandham,
  • S. Sathiyamurthy

摘要

Current research aims to produce and evaluate the functional characteristics of polymer composite laminates with different sequences of glass (G), sisal (S), and kenaf (K) fiber packed with a constant weight% (% by wt) of nanographene and different concentrations of multi-walled carbon nanotubes (MWCNT) through compression mould process, which is executed at 140 °C temperature and 150 MPa pressure. The developed composite laminates like sequence 1, sequence 2, and sequence 3 contained G-S-S-S-S-K-K-K-K-G, G-S-S-K-K-K-K-S-S-G and G-K-K-S-S-S-S-K-K-G, respectively. To enhance the natural fiber quality and remove hemi-cellulose, the fibers are subjected to chemical surface treatment and used for composite fabrication. The effectiveness of nanographene and MWCNT on mechanical, fracture toughness, water absorption resistance and thermal stability properties of composite laminates is studied. Based on the findings, the sequence 3 (G-K-K-S-S-S-S-K-K-G) composite laminate, featuring nanographene and 3% (by wt) MWCNT, achieved optimum tensile strength, flexural strength, microhardness, and fracture toughness values of 116 MPa, 141 MPa, 84 HV, and 2.49 MPam0.5, which is higher than the other samples. Furthermore, the surface-treated natural fiber effectively bonded with glass and kenaf fiber, exhibiting high water absorption resistance (3.7%) and higher thermal stability compared to other composite laminates. This S3 composite represents the trade-off between weight and performance in automotive lightweight cabinet and dashboard applications.

Graphical abstract