Journal
E-POLYMERS
Volume 19, Issue 1, Pages 70-78Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/epoly-2019-0009
Keywords
polyarylene ether nitrile; boron nitride; surface coating; sulfonated polyarylene ether nitrile
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Funding
- National Natural Science Foundation of China [51603029, 51773028]
- China Postdoctoral Science Foundation [2017M623001]
- National Postdoctoral Program for Innovative Talents [BX201700044]
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Boron nitride (BN) coated with sulfonated polyarylene ether nitrile (SPEN) (BN@SPEN) was used as additive to enhance the thermal conductivity of polyarylene ether nitrile. BN@SPEN was prepared by coating BN micro-platelets with SPEN through ultrasonic technology combined with the post-treatment bonding process. The prepared BN@SPEN was characterized by FTIR, TGA, SEM and TEM, which confirmed the successful coating of BN micro-platelets. The obtained BN@SPEN was introduced into the PEN matrix to prepare composite films by a solution casting method. The compatibility between BN and PEN matrix was studied by using SEM observation and rheology measurement. Furthermore, thermal conductivity of BN@SPEN/PEN films were carefully characterized. Thermal conductivity of BN@SPEN/PEN films was increased to 0.69 W/(m.K) at 20 wt% content of BN@SPEN, having 138% increment comparing with pure PEN.
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