Polyvinylidene fluoride/sulfonated graphene oxide blend membrane coated\xa0with polypyrrole/platinum electrode for ionic polymer metal composite actuator applications

Inamuddin Inamuddin,Heba Abbas Kashmery

doi:10.1038/s41598-019-46305-6

Inamuddin Inamuddin, Heba Abbas Kashmery

Open Access

https://doi.org/10.1038/s41598-019-46305-6

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Journal: Scientific Reports	Publication Date: Jul 8, 2019
Citations: 24	License type: open-access

Affiliation: King Abdulaziz University

Abstract

A polyvinylidene fluoride, sulfonated graphene oxide composite membrane coated with polypyrrole (Ppy) and platinum metal (Pt) was fabricated. The Fourier-transform infrared (FTIR) spectroscopic analysis was done to analyze the functional groups present in the composite material. Deposition of PPy/Pt electrode and surface morphology of PVDF/SGO/Pt/PPy was confirmed by scanning electron microscopic (SEM) images. The capacity of ion exchange and proton conductivity (PC) of PVDF/SGO/Pt/PPy were 1.4 meq g−1 of dry ion exchanger and 4.251 × 10−2 S cm−1, respectively. A two-link flexible manipulator based on the fabricated ionic polymer metal composite (IPMC) membranes was also developed where the electromechanical behaviour of a polymer-based actuator provides an important step in robotics applications.

Highlights

A polyvinylidene fluoride, sulfonated graphene oxide composite membrane coated with polypyrrole (Ppy) and platinum metal (Pt) was fabricated
A two-link flexible manipulator based on the fabricated ionic polymer metal composite (IPMC) membranes was developed where the electromechanical behaviour of a polymer-based actuator provides an important step in robotics applications
IPMC actuator was developed using Poly(vinylidene fluoride) (PVDF) and sulfonated graphene oxide composite membrane coated with polypyrrole (PPy) layer through in-situ oxidative-polymerization followed by deposition of platinum metal electrodes on both sides of the membrane

Summary

Results and Discussion

The CV curve shows that the PVDF/SGO/PPy/Pt membrane has a higher value of current density because SGO and PPy increase the sulfuric acid groups and surface area and conductivity in the proposed composition This further increase the uniformity of the Pt electrode layer deposited on the membrane surface with the increase in the PC and IEC. This successive deflection experiment was repeated for 3 × 10 (30) times at the same applied potential of 0–5 V DC for both the IPMCs to attain the performance after multiple repeats. The normal distribution for the PVDF/SGO/PPy/Pt ionic polymer metal composite membrane actuator

Standard deviation

Conclusions

Additional Information