PMID- 29226667
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180731
LR  - 20180731
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 10
IP  - 1
DP  - 2018 Jan 10
TI  - Enhanced Thermal Conductivity of Graphene Nanoplatelet-Polymer Nanocomposites 
      Fabricated via Supercritical Fluid-Assisted in Situ Exfoliation.
PG  - 1225-1236
LID - 10.1021/acsami.7b15170 [doi]
AB  - As electronic devices become increasingly miniaturized, their thermal management 
      becomes critical. Efficient heat dissipation guarantees their optimal performance 
      and service life. Graphene nanoplatelets (GnPs) have excellent thermal properties 
      that show promise for use in fabricating commercial polymer nanocomposites with 
      high thermal conductivity. Herein, an industrially viable technique for 
      manufacturing a new class of lightweight GnP-polymer nanocomposites with high 
      thermal conductivity is presented. Using this method, GnP-high-density 
      polyethylene (HDPE) nanocomposites with a microcellular structure are fabricated 
      by melt mixing, which is followed by supercritical fluid (SCF) treatment and 
      injection molding foaming, which adds an extra layer of design flexibility. Thus, 
      the microstructure is tailored within the nanocomposites and this improves their 
      thermal conductivity. Therefore, the SCF-treated HDPE 17.6 vol % GnP 
      microcellular nanocomposites have a solid-phase thermal conductivity of 4.13 +/- 
      0.12 W m(-1) K(-1). This value far exceeds that of their regular injection-molded 
      counterparts (2.09 +/- 0.03 W m(-1) K(-1)) and those reported in the literature. 
      This dramatic improvement results from in situ GnPs' exfoliation and dispersion, 
      and from an elevated level of random orientation and interconnectivity. Thus, 
      this technique provides a novel approach to the development of microscopically 
      tailored structures for the production of lighter and more thermally conductive 
      heat sinks for next generations of miniaturized electronic devices.
FAU - Hamidinejad, S Mahdi
AU  - Hamidinejad SM
AUID- ORCID: 0000-0003-3137-1990
AD  - Microcellular Plastics Manufacturing Laboratory and double daggerNano Mechanics and Materials 
      Laboratory, Department of Mechanical and Industrial Engineering, University of 
      Toronto , 5 King's College Road, Toronto M5S 3G8, Canada.
FAU - Chu, Raymond K M
AU  - Chu RKM
AD  - Microcellular Plastics Manufacturing Laboratory and double daggerNano Mechanics and Materials 
      Laboratory, Department of Mechanical and Industrial Engineering, University of 
      Toronto , 5 King's College Road, Toronto M5S 3G8, Canada.
FAU - Zhao, Biao
AU  - Zhao B
AD  - Microcellular Plastics Manufacturing Laboratory and double daggerNano Mechanics and Materials 
      Laboratory, Department of Mechanical and Industrial Engineering, University of 
      Toronto , 5 King's College Road, Toronto M5S 3G8, Canada.
FAU - Park, Chul B
AU  - Park CB
AUID- ORCID: 0000-0002-1702-1268
AD  - Microcellular Plastics Manufacturing Laboratory and double daggerNano Mechanics and Materials 
      Laboratory, Department of Mechanical and Industrial Engineering, University of 
      Toronto , 5 King's College Road, Toronto M5S 3G8, Canada.
FAU - Filleter, Tobin
AU  - Filleter T
AD  - Microcellular Plastics Manufacturing Laboratory and double daggerNano Mechanics and Materials 
      Laboratory, Department of Mechanical and Industrial Engineering, University of 
      Toronto , 5 King's College Road, Toronto M5S 3G8, Canada.
LA  - eng
PT  - Journal Article
DEP - 20171221
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
OTO - NOTNLM
OT  - graphene nanoplatelets
OT  - microcellular structure
OT  - polymer nanocomposites
OT  - supercritical fluid
OT  - thermal conductivity
EDAT- 2017/12/12 06:00
MHDA- 2017/12/12 06:01
CRDT- 2017/12/12 06:00
PHST- 2017/12/12 06:00 [pubmed]
PHST- 2017/12/12 06:01 [medline]
PHST- 2017/12/12 06:00 [entrez]
AID - 10.1021/acsami.7b15170 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2018 Jan 10;10(1):1225-1236. doi: 
      10.1021/acsami.7b15170. Epub 2017 Dec 21.