Multi-walled carbon nanotube(MWCNT), which have been applied to study as a thermal conduction material, it has excellent thermal properties and has the thermal conductivity value of 3000 W/m·K. This study aims to improve heat dissipation performance of CNT Buckypaper as a thermal interface material(...
Multi-walled carbon nanotube(MWCNT), which have been applied to study as a thermal conduction material, it has excellent thermal properties and has the thermal conductivity value of 3000 W/m·K. This study aims to improve heat dissipation performance of CNT Buckypaper as a thermal interface material(TIM). Three methods are used in this experiment. One, ultrasonication treated for 2 hours. Another, treated CNT using sulfuric acid (H2SO4, 98% purity), Nitric acid (HNO3, 65% purity), and hydrochloric acid (HCl, 37% purity) were used. The treatment process is to remove impurities, which disturb the particle dispersion and reveal a tendency to agglomerate when prepared as a suspension. Therefore, a strong acid treatment removes impurities and improves the dispersibility of nanofluids. The other, cellulose nanocrystals(CNC), which has the limelight recently, can affect stabilize structurally, is eco-friendly, and is used as a composite material with organic and inorganic materials because of its good compatibility with other materials. So, durability is improved during the Buckypaper is manufactured. These preeminent effects of CNC help CNC-treated CNT mixed Buckypaper improve thermal conduction. Besides, by chemically treatment MWCNT, we were confirmed to improve the dispersibility and made Buckypaper. Thermal performances of TIM used an ASTM D5470 standard tester, diverse ratios Buckypaper were tested using heat dissipation performance test. Buckypaper manufactured by adding MWCNT and CNC had a resistance value of 0.776 (℃/W). This provides a 33.1% decrease compared to the treated CNT Buckypaper. As a result, it was confirmed that CNC-CNT Buckypaper has the possibility to be applied on TIM.
Multi-walled carbon nanotube(MWCNT), which have been applied to study as a thermal conduction material, it has excellent thermal properties and has the thermal conductivity value of 3000 W/m·K. This study aims to improve heat dissipation performance of CNT Buckypaper as a thermal interface material(TIM). Three methods are used in this experiment. One, ultrasonication treated for 2 hours. Another, treated CNT using sulfuric acid (H2SO4, 98% purity), Nitric acid (HNO3, 65% purity), and hydrochloric acid (HCl, 37% purity) were used. The treatment process is to remove impurities, which disturb the particle dispersion and reveal a tendency to agglomerate when prepared as a suspension. Therefore, a strong acid treatment removes impurities and improves the dispersibility of nanofluids. The other, cellulose nanocrystals(CNC), which has the limelight recently, can affect stabilize structurally, is eco-friendly, and is used as a composite material with organic and inorganic materials because of its good compatibility with other materials. So, durability is improved during the Buckypaper is manufactured. These preeminent effects of CNC help CNC-treated CNT mixed Buckypaper improve thermal conduction. Besides, by chemically treatment MWCNT, we were confirmed to improve the dispersibility and made Buckypaper. Thermal performances of TIM used an ASTM D5470 standard tester, diverse ratios Buckypaper were tested using heat dissipation performance test. Buckypaper manufactured by adding MWCNT and CNC had a resistance value of 0.776 (℃/W). This provides a 33.1% decrease compared to the treated CNT Buckypaper. As a result, it was confirmed that CNC-CNT Buckypaper has the possibility to be applied on TIM.
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