PMID- 31527691
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231014
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 9
IP  - 1
DP  - 2019 Sep 16
TI  - Conductive silicone elastomers electrodes processable by screen printing.
PG  - 13331
LID - 10.1038/s41598-019-49939-8 [doi]
LID - 13331
AB  - Conductive inks consisting of graphene and carbon black conductive fillers into a 
      polydimethylsiloxane (PDMS) matrix, which can be processed into thin films by 
      screen printing are developed. The influence of filler composition and content on 
      mechanical and electrical properties of the conductive composites is 
      investigated. The best composites were evaluated as electrode material for 
      dielectric elastomer actuators and for piezoelectric sensors. With increasing 
      filler content, the electrical properties of the resulting composites of graphite 
      nanoplates (GNPs) or a binary mixture of GNPs and carbon black (CB) with PDMS 
      (M(w) = 139 kg/mol) are enhanced. Hence, PDMS composites filled with GNPs (42 
      wt.%) or a binary mixture of GNPs/CB (300/150 ratio, 30 wt.% of total filler 
      loading) exhibited constant contact resistance values of 0.5 and 5 Omega determined 
      in life-cycle test, respectively, thus rendering them suitable as electrode 
      materials for piezosensors. On the other hand, dielectric elastomer actuators 
      require more flexible electrode materials, which could be tuned by varying the 
      polymer molecular weight and by reducing the filler content. Therefore, a 
      composite consisting of PDMS (M(w) = 692 kg/mol) and a binary filler mixture of 
      GNPs/CB (150/75 ratio, 18 wt.% of total filler loading) was used for producing 
      the electrodes of dielectric elastomer transducers (DETs). The produced DETs with 
      different electrode thicknesses were characterized in terms of their performance. 
      The negligible hysteresis of the electrode materials is favorable for sensor and 
      actuator applications.
FAU - Quinsaat, Jose Enrico Q
AU  - Quinsaat JEQ
AD  - Swiss Federal Laboratories for Materials Science and Technology Empa, Laboratory 
      for Functional Polymers, Ueberlandstr. 129, CH-8600, Dubendorf, Switzerland. 
      jose.quinsaat@gmx.ch.
FAU - Burda, Iurii
AU  - Burda I
AD  - Swiss Federal Laboratories for Materials Science and Technology Empa, Laboratory 
      for Mechanical Systems Engineering, Ueberlandstr. 129, CH-8600, Dubendorf, 
      Switzerland.
FAU - Kramer, Ronny
AU  - Kramer R
AD  - Sateco AG, Tumigerstr. 111, CH-8606, Naenikon-Uster, Switzerland.
FAU - Hafliger, Daniel
AU  - Hafliger D
AD  - Sateco AG, Tumigerstr. 111, CH-8606, Naenikon-Uster, Switzerland.
FAU - Nuesch, Frank A
AU  - Nuesch FA
AD  - Swiss Federal Laboratories for Materials Science and Technology Empa, Laboratory 
      for Functional Polymers, Ueberlandstr. 129, CH-8600, Dubendorf, Switzerland.
AD  - Ecole Polytechnique Federale de Lausanne (EPFL), Institut des Materiaux, Station 
      12, CH 1015, Lausanne, Switzerland.
FAU - Dascalu, Mihaela
AU  - Dascalu M
AD  - Swiss Federal Laboratories for Materials Science and Technology Empa, Laboratory 
      for Functional Polymers, Ueberlandstr. 129, CH-8600, Dubendorf, Switzerland.
FAU - Opris, Dorina M
AU  - Opris DM
AD  - Swiss Federal Laboratories for Materials Science and Technology Empa, Laboratory 
      for Functional Polymers, Ueberlandstr. 129, CH-8600, Dubendorf, Switzerland. 
      dorina.opris@empa.ch.
LA  - eng
PT  - Journal Article
DEP - 20190916
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
SB  - IM
PMC - PMC6746820
COIS- The authors declare no competing interests.
EDAT- 2019/09/19 06:00
MHDA- 2019/09/19 06:01
PMCR- 2019/09/16
CRDT- 2019/09/19 06:00
PHST- 2019/05/14 00:00 [received]
PHST- 2019/09/03 00:00 [accepted]
PHST- 2019/09/19 06:00 [entrez]
PHST- 2019/09/19 06:00 [pubmed]
PHST- 2019/09/19 06:01 [medline]
PHST- 2019/09/16 00:00 [pmc-release]
AID - 10.1038/s41598-019-49939-8 [pii]
AID - 49939 [pii]
AID - 10.1038/s41598-019-49939-8 [doi]
PST - epublish
SO  - Sci Rep. 2019 Sep 16;9(1):13331. doi: 10.1038/s41598-019-49939-8.