PMID- 28730803
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180727
LR  - 20180727
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 9
IP  - 31
DP  - 2017 Aug 9
TI  - Three-Dimensional Graphene Foam-Filled Elastomer Composites with High Thermal and 
      Mechanical Properties.
PG  - 26447-26459
LID - 10.1021/acsami.7b07650 [doi]
AB  - To meet the increasing demands for effective heat management of electronic 
      devices, a graphene-based polymeric composite is considered to be one of the 
      candidate materials owing to the ultrahigh thermal conductivity (TC) of graphene. 
      However, poor graphene dispersion, low quality of exfoliated graphene, and strong 
      phonon scattering at the graphene/matrix interface restrict the heat dissipation 
      ability of graphene-filled composites. Here, a facile and versatile approach to 
      bond graphene foam (GF) with polydimethylsiloxane (PDMS) is proposed, and the 
      corresponding composite with considerable improvement in TC and insulativity is 
      fabricated. First, three-dimensional GF was coated with polydopamine (PDA) via 
      pi-pi stack and functional groups from PDA reacted with 
      3-aminopropyltriethoxysilane (APTS). Then, the modified GF was compressed (c-GF) 
      to enhance density and infiltrated with PDMS to get the c-GF/PDA/APTS/PDMS 
      composite. As a result, these processes endow the composite with high TC of 
      in-plane 28.77 W m(-1) K(-1) and out-of-plane 1.62 W m(-1) K(-1) at 11.62 wt % GF 
      loading. Besides, the composite manifests obvious improvement in mechanical 
      properties, thermal stability, and insulativity compared to neat PDMS and GF/PDMS 
      composite. An attempt to use the composite for cooling a ceramic heater is found 
      to be successful. Above results open a way for such composites to be applied for 
      the heat management of electronic devices.
FAU - Fang, Haoming
AU  - Fang H
AD  - Department of Materials Science and Engineering, HEDPS/CAPT, Key Laboratory of 
      Polymer Chemistry and Physics of Ministry of Education, College of Engineering, 
      Peking University , Beijing 100871, China.
FAU - Zhao, Yunhong
AU  - Zhao Y
AD  - Department of Materials Science and Engineering, HEDPS/CAPT, Key Laboratory of 
      Polymer Chemistry and Physics of Ministry of Education, College of Engineering, 
      Peking University , Beijing 100871, China.
FAU - Zhang, Yafei
AU  - Zhang Y
AD  - Department of Materials Science and Engineering, HEDPS/CAPT, Key Laboratory of 
      Polymer Chemistry and Physics of Ministry of Education, College of Engineering, 
      Peking University , Beijing 100871, China.
FAU - Ren, Yanjuan
AU  - Ren Y
AD  - Department of Materials Science and Engineering, HEDPS/CAPT, Key Laboratory of 
      Polymer Chemistry and Physics of Ministry of Education, College of Engineering, 
      Peking University , Beijing 100871, China.
FAU - Bai, Shu-Lin
AU  - Bai SL
AUID- ORCID: 0000-0001-9177-7525
AD  - Department of Materials Science and Engineering, HEDPS/CAPT, Key Laboratory of 
      Polymer Chemistry and Physics of Ministry of Education, College of Engineering, 
      Peking University , Beijing 100871, China.
LA  - eng
PT  - Journal Article
DEP - 20170731
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
OTO - NOTNLM
OT  - elastomer
OT  - noncovalent modification
OT  - thermal and mechanical properties
OT  - thermal interface material
OT  - three-dimensional graphene
EDAT- 2017/07/22 06:00
MHDA- 2017/07/22 06:01
CRDT- 2017/07/22 06:00
PHST- 2017/07/22 06:00 [pubmed]
PHST- 2017/07/22 06:01 [medline]
PHST- 2017/07/22 06:00 [entrez]
AID - 10.1021/acsami.7b07650 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2017 Aug 9;9(31):26447-26459. doi: 
      10.1021/acsami.7b07650. Epub 2017 Jul 31.