Recyclable thermoplastic hexagonal boron nitride composites with high thermal conductivity

Title
Recyclable thermoplastic hexagonal boron nitride composites with high thermal conductivity
Authors
고문주안석훈김채빈김두헌신하은Jong Kuk Lim
Keywords
Polyhexahydrotriazine; Composite; Hexagonal boron nitride; Recyclable; Heat dissipation
Issue Date
2019-04
Publisher
Composites. Part B, Engineering
Citation
VOL 163-729
Abstract
Polymers have been widely adapted as matrix incorporating relatively heavy but functional fillers to produce more practically useful materials with lighter weights in composite industries. In an engineering perspective, processability, ease of mass production, good interfacial interaction with the filler, and recyclability are crucial aspects of the polymeric matrix. To these ends, we herein describe a recyclable, processable, and also readily mass-producible polymer for including functional model hexagonal boron nitride (hBN) filler. The final composite possessing highly aligned hBN was obtained via simple melt pressing, attributing to a good interfacial interaction between the matrix and the hBN along with shear force generated upon manufacturing the composite. As a consequence, the composite exhibited exceptionally high thermal conductivity of 14  W/mK. To further highlight the versatility of the matrix, the incorporated filler was recovered from the composite by depolymerizing the matrix. The recovered hBN displayed equivalent quality as the stock, thus readily reusable for the future.
URI
http://pubs.kist.re.kr/handle/201004/68965
ISSN
1359-8368
Appears in Collections:
KIST Publication > Article
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