Thermal conductivity improvement of surface-enhanced polyetherimide (PEI) composites using polyimide-coated h-BN particles

In this study, we investigated the thermal conductivities and mechanical properties of polyetherimide (PEI) composites using polyimide (PI)-coated h-BN (PI-BN) particles. We found that PI-coated h-BN effectively increased adhesion with the PEI matrix, imparting enhanced mechanical and thermal stabil...

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Veröffentlicht in:	Physical chemistry chemical physics : PCCP 2014-10, Vol.16 (37), p.241-246
Hauptverfasser:	Lee, Hoing Lae, Kwon, O Hwan, Ha, Sung Min, Kim, Byoung Gak, Kim, Yong Seok, Won, Jong Chan, Kim, Jooheon, Choi, Jong Han, Yoo, Youngjae
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Sprache:	eng
Schlagworte:	Adhesion Boron nitride Heat transfer Mechanical properties Particulate composites Polyetherimides Polymer matrix composites Thermal conductivity
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container_issue	37
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container_title	Physical chemistry chemical physics : PCCP
container_volume	16
creator	Lee, Hoing Lae Kwon, O Hwan Ha, Sung Min Kim, Byoung Gak Kim, Yong Seok Won, Jong Chan Kim, Jooheon Choi, Jong Han Yoo, Youngjae
description	In this study, we investigated the thermal conductivities and mechanical properties of polyetherimide (PEI) composites using polyimide (PI)-coated h-BN (PI-BN) particles. We found that PI-coated h-BN effectively increased adhesion with the PEI matrix, imparting enhanced mechanical and thermal stability and thermal conductivity with increasing BN content. The thermal conductivity of the PEI composite containing 60 wt% PI-BN was 3.3 W m −1 K −1 , while the thermal conductivity of the PEI/BN composite without modification was 2.6 W m −1 K −1 . The PEI/PI-BN composites show higher impact strengths than the PEI/BN composites because of less BN particle agglomeration and good wettability between PEI and h-BN. The results indicate that the PI-coated BN incorporated into the PEI matrix effectively enhances the thermal conductivity and mechanical properties of the PEI composites. Enhanced thermal conductivities of PEI/(PI-BN) composites and their thermographic images.
doi_str_mv	10.1039/c4cp02730b
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source	Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection
subjects	Adhesion Boron nitride Heat transfer Mechanical properties Particulate composites Polyetherimides Polymer matrix composites Thermal conductivity
title	Thermal conductivity improvement of surface-enhanced polyetherimide (PEI) composites using polyimide-coated h-BN particles
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