PMID- 30971036
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200930
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 9
IP  - 8
DP  - 2017 Aug 12
TI  - Influence of Temperature on the Electromechanical Properties of Ionic 
      Liquid-Doped Ionic Polymer-Metal Composite Actuators.
LID - 10.3390/polym9080358 [doi]
LID - 358
AB  - Ionic polymer-metal composite (IPMC) actuators have considerable potential for a 
      wide range of applications. Although IPMC actuators are widely studied for their 
      electromechanical properties, most studies have been conducted at the ambient 
      conditions. The electromechanical performance of IPMC actuators at higher 
      temperature is still far from understood. In this study, the effect of 
      temperature on the electromechanical behavior (the rate of deformation and 
      curvature) and electrochemical behavior (current flow) of ionic liquid doped IPMC 
      actuators are examined and reported. Both electromechanical and electrochemical 
      studies were conducted in air at temperatures ranging from 25  degrees C to 90  degrees C. 
      Electromechanically, the actuators showed lower cationic curvature with 
      increasing temperature up to 70  degrees C and a slower rate of deformation with 
      increasing temperature up to 50  degrees C. A faster rate of deformation was recorded at 
      temperatures higher than 50  degrees C, with a maximum rate at 60  degrees C. The anionic 
      response showed a lower rate of deformation and a higher anionic curvature with 
      increasing temperatures up to 50  degrees C with an abrupt increase in the rate of 
      deformation and decrease of curvature at 60  degrees C. In both cationic and anionic 
      responses, actuators started to lose functionality and show unpredictable 
      performance for temperatures greater than 60  degrees C, with considerable fluctuations 
      at 70  degrees C. Electrochemically, the current flow across the actuators was increased 
      gradually with increasing temperature up to 80  degrees C during the charging and 
      discharging cycles. A sudden increase in current flow was recorded at 90  degrees C 
      indicating a shorted circuit and actuator failure.
FAU - Almomani, Abdallah
AU  - Almomani A
AD  - Department of Aerospace Engineering, Iowa State University, Ames, IA 50011, USA. 
      almomani@iastate.edu.
FAU - Hong, Wangyujue
AU  - Hong W
AD  - Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA. 
      hwyj@iastate.edu.
FAU - Hong, Wei
AU  - Hong W
AD  - Department of Aerospace Engineering, Iowa State University, Ames, IA 50011, USA. 
      whong@iastate.edu.
AD  - Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA. 
      whong@iastate.edu.
AD  - Department of Materials Science and Engineering, Iowa State University, Ames, IA 
      50011, USA. whong@iastate.edu.
FAU - Montazami, Reza
AU  - Montazami R
AD  - Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA. 
      reza@iastate.edu.
AD  - Ames Laboratory, U.S. Department of Energy, Ames, IA 50011, USA. 
      reza@iastate.edu.
LA  - eng
PT  - Journal Article
DEP - 20170812
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC6418685
OTO - NOTNLM
OT  - IPMC
OT  - electromechanical actuators
OT  - ionic electroactive polymers
OT  - soft actuators
OT  - soft robotics
OT  - temperature
COIS- The authors declare no conflict of interest.
EDAT- 2017/08/12 00:00
MHDA- 2017/08/12 00:01
PMCR- 2017/08/12
CRDT- 2019/04/12 06:00
PHST- 2017/07/28 00:00 [received]
PHST- 2017/08/08 00:00 [revised]
PHST- 2017/08/09 00:00 [accepted]
PHST- 2019/04/12 06:00 [entrez]
PHST- 2017/08/12 00:00 [pubmed]
PHST- 2017/08/12 00:01 [medline]
PHST- 2017/08/12 00:00 [pmc-release]
AID - polym9080358 [pii]
AID - polymers-09-00358 [pii]
AID - 10.3390/polym9080358 [doi]
PST - epublish
SO  - Polymers (Basel). 2017 Aug 12;9(8):358. doi: 10.3390/polym9080358.