PMID- 32283853
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240328
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 13
IP  - 7
DP  - 2020 Apr 9
TI  - Polydopamine-Modified Al(2)O(3)/Polyurethane Composites with Largely Improved 
      Thermal and Mechanical Properties.
LID - 10.3390/ma13071772 [doi]
LID - 1772
AB  - Alumina/polyurethane composites were prepared via in situ polymerization and used 
      as thermal interface materials (TIMs). The surface of alumina particles was 
      modified using polydopamine (PDA) and then evaluated via Fourier transform 
      infrared spectroscopy (FTIR), thermogravimetric analysis (TG), and Raman 
      spectroscopy (Raman). Scanning electron microscope (SEM) images showed that 
      PDA-Al(2)O(3) has better dispersion in a polyurethane (PU) matrix than Al(2)O(3). 
      Compared with pure PU, the 30 wt% PDA-Al(2)O(3)/PU had 95% more Young's modulus, 
      128% more tensile strength, and 76% more elongation at break than the pure PU. 
      Dynamic mechanical analysis (DMA) results showed that the storage modulus of the 
      30 wt% PDA-Al(2)O(3)/PU composite improved, and the glass transition temperature 
      (Tg) shifted to higher temperatures. The thermal conductivity of the 30 wt% 
      PDA-Al(2)O(3)/PU composite increased by 138%. Therefore, the results showed that 
      the prepared PDA-coated alumina can simultaneously improve both the mechanical 
      properties and thermal conductivity of PU.
FAU - Du, Ruikui
AU  - Du R
AD  - North University of China, Taiyuan 030051, China.
AD  - Shanxi Province Polymer Composite Engineering Technology Research Center, Taiyuan 
      030051, China.
FAU - He, Li
AU  - He L
AD  - North University of China, Taiyuan 030051, China.
AD  - Shanxi Province Polymer Composite Engineering Technology Research Center, Taiyuan 
      030051, China.
FAU - Li, Peng
AU  - Li P
AD  - North University of China, Taiyuan 030051, China.
AD  - Shanxi Province Polymer Composite Engineering Technology Research Center, Taiyuan 
      030051, China.
FAU - Zhao, Guizhe
AU  - Zhao G
AD  - North University of China, Taiyuan 030051, China.
AD  - Shanxi Province Polymer Composite Engineering Technology Research Center, Taiyuan 
      030051, China.
LA  - eng
PT  - Journal Article
DEP - 20200409
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC7179027
OTO - NOTNLM
OT  - alumina
OT  - in situ polymerization
OT  - mechanical properties
OT  - polyurethane
OT  - thermal conductivity
COIS- The authors declare no conflict of interest.
EDAT- 2020/04/15 06:00
MHDA- 2020/04/15 06:01
PMCR- 2020/04/09
CRDT- 2020/04/15 06:00
PHST- 2020/02/15 00:00 [received]
PHST- 2020/04/03 00:00 [revised]
PHST- 2020/04/06 00:00 [accepted]
PHST- 2020/04/15 06:00 [entrez]
PHST- 2020/04/15 06:00 [pubmed]
PHST- 2020/04/15 06:01 [medline]
PHST- 2020/04/09 00:00 [pmc-release]
AID - ma13071772 [pii]
AID - materials-13-01772 [pii]
AID - 10.3390/ma13071772 [doi]
PST - epublish
SO  - Materials (Basel). 2020 Apr 9;13(7):1772. doi: 10.3390/ma13071772.