PMID- 37834723
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231020
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 16
IP  - 19
DP  - 2023 Oct 6
TI  - A Study on the 3D Deformation Behavior of Porous PDMS Flexible Electronic 
      Composite Films Stretched under Different Temperatures.
LID - 10.3390/ma16196586 [doi]
LID - 6586
AB  - Flexible electronic films need to be applied in different ambient temperatures. 
      The porous substrate of the composite film enhances air permeability. The 
      lifespan of these composite films is significantly affected by variations in 
      temperature and substrate porosity. To explore the impact of temperature and 
      porosity on the performance of composite films, we developed a 3D deformation 
      detection system utilizing the advanced three-dimensional digital image 
      correlation (3D-DIC) method. This system enabled us to observe and analyze the 3D 
      deformation behaviors of porous polydimethylsiloxane (PDMS) flexible composite 
      films when they are subjected to uniaxial stretching at different temperatures. 
      We proposed employing two parameters, namely the strain fluctuation coefficient 
      (M) and off-plane displacement (w), to characterize the 3D deformation of the 
      films. This holistic characterization of deformation through the combined 
      utilization of parameters M and w held greater significance for composite films 
      compared to the conventional practice of solely measuring mechanical properties 
      like the elastic modulus. Through experimental analysis, we discovered that as 
      the temperature increased, the M value of the film decreased while the w value 
      increased for the same stretching distance. Furthermore, the porosity of the 
      composite film depended on the doping mass ratio of PDMS to deionized water 
      during the fabrication process. Specifically, when the ratio was set at 6:1, the 
      composite film exhibited the smallest M value and w value, and the highest air 
      permeability. Additionally, the 3D deformation behavior remained stable across 
      different temperatures for this specific ratio. Moreover, our findings unveiled a 
      remarkable association between the parameter w and the resistance value of the 
      device. These findings provide valuable insights for optimizing the fabrication 
      process of porous PDMS flexible electronic composite films.
FAU - Chen, Cheng
AU  - Chen C
AD  - School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, 
      China.
FAU - Li, Ziyun
AU  - Li Z
AD  - School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, 
      China.
FAU - Wang, Yanlai
AU  - Wang Y
AD  - School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, 
      China.
FAU - Zhang, Ze
AU  - Zhang Z
AD  - School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, 
      China.
FAU - Ren, Chunhua
AU  - Ren C
AD  - School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, 
      China.
LA  - eng
GR  - No.12102302/National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20231006
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC10574120
OTO - NOTNLM
OT  - digital image correlation
OT  - off-plane displacement
OT  - porous PDMS flexible electronic composite films
OT  - strain fluctuation
COIS- The authors declare no conflict of interest.
EDAT- 2023/10/14 10:47
MHDA- 2023/10/14 10:48
PMCR- 2023/10/06
CRDT- 2023/10/14 01:06
PHST- 2023/09/13 00:00 [received]
PHST- 2023/10/03 00:00 [revised]
PHST- 2023/10/05 00:00 [accepted]
PHST- 2023/10/14 10:48 [medline]
PHST- 2023/10/14 10:47 [pubmed]
PHST- 2023/10/14 01:06 [entrez]
PHST- 2023/10/06 00:00 [pmc-release]
AID - ma16196586 [pii]
AID - materials-16-06586 [pii]
AID - 10.3390/ma16196586 [doi]
PST - epublish
SO  - Materials (Basel). 2023 Oct 6;16(19):6586. doi: 10.3390/ma16196586.