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<p>Thermal Interface Materials (TIMs) are critical for improving heat dissipation in electronic, automotive, and renewable energy systems. Their long-term performance under sub-glass-transition (Tg) thermal aging is essential to ensure reliability and stability. This investigation evaluates a hybrid polyester composite reinforced with aluminized glass, bamboo fibers, and carbon quantum dots (CQDs), formulated as 70 vol% resin, 30 vol% hybrid fiber, and 2 vol% CQDs.Specimens were thermally aged at 40 ℃ for 7 to 30 days to assess below the glass transition temperature.Among the aged samples, the 7&#xa0;day aged specimen (ABS31)with 70 vol% resin, 30 vol% hybrid fiber, and 2 vol% CQDsshowed the least degradation, retaining a tensile strength of 173&#xa0;MPa, and flexural strength of 192&#xa0;MPa. Fatigue performance remained stable with 25, 521 cycles, 24, 731 cycles, and 23,922 cycles at 25%, 50%, and 75% UTS.Additionally, the composite exhibited higher thermal conductivity to 0.47&#xa0;W/mK, and dielectric permittivity (4.59) and loss (0.790) remained acceptable. Scanning electron microscopy analysis (SEM) confirmed minimal fiber-matrix debonding in ABS31. In addition, Thermogravimetric analysis (TGA) reveled higher onset (325 ℃) and final degradation temperature (505 ℃) compared to prolonged-aged composites. Overall, ABS31demonstrates strong potential as a durable TIM material with balanced thermal and mechanical performance.</p>

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Fabrication of biocomposite thermal Insulation panels with silane-modified nano-additives for industrial applications

  • 期刊论文

  • 发表日期：

    2026年3月24日

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  • Y. Balto,
  • T. Michel Raj,
  • P. Anto Paulin Merinto,
  • A. C. Jinisha

摘要

Thermal Interface Materials (TIMs) are critical for improving heat dissipation in electronic, automotive, and renewable energy systems. Their long-term performance under sub-glass-transition (Tg) thermal aging is essential to ensure reliability and stability. This investigation evaluates a hybrid polyester composite reinforced with aluminized glass, bamboo fibers, and carbon quantum dots (CQDs), formulated as 70 vol% resin, 30 vol% hybrid fiber, and 2 vol% CQDs.Specimens were thermally aged at 40 ℃ for 7 to 30 days to assess below the glass transition temperature.Among the aged samples, the 7 day aged specimen (ABS31)with 70 vol% resin, 30 vol% hybrid fiber, and 2 vol% CQDsshowed the least degradation, retaining a tensile strength of 173 MPa, and flexural strength of 192 MPa. Fatigue performance remained stable with 25, 521 cycles, 24, 731 cycles, and 23,922 cycles at 25%, 50%, and 75% UTS.Additionally, the composite exhibited higher thermal conductivity to 0.47 W/mK, and dielectric permittivity (4.59) and loss (0.790) remained acceptable. Scanning electron microscopy analysis (SEM) confirmed minimal fiber-matrix debonding in ABS31. In addition, Thermogravimetric analysis (TGA) reveled higher onset (325 ℃) and final degradation temperature (505 ℃) compared to prolonged-aged composites. Overall, ABS31demonstrates strong potential as a durable TIM material with balanced thermal and mechanical performance.