PMID- 35877854 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220728 IS - 2077-0375 (Print) IS - 2077-0375 (Electronic) IS - 2077-0375 (Linking) VI - 12 IP - 7 DP - 2022 Jun 25 TI - Development of a Soft Robotic Bending Actuator Based on a Novel Sulfonated Polyvinyl Chloride-Phosphotungstic Acid Ionic Polymer-Metal Composite (IPMC) Membrane. LID - 10.3390/membranes12070651 [doi] LID - 651 AB - This work presents the development of a cost-effective electric-stimulus-responsive bending actuator based on a sulfonated polyvinyl chloride (SPVC)-phosphotungstic acid (PTA) ionic polymer-metal composite (IPMC), using a simple solution-casting method followed by chemical reduction of platinum (Pt) ions as an electrode. The characterizations of the prepared IPMC were performed using Fourier-transform infrared (FTIR) spectroscopy, Scanning electron microscopy (SEM), X-ray diffraction (XRD) techniques, Thermogravimetric analysis (TGA), and Energy-dispersive X-ray (EDX) analysis. Excellent ion-exchange capacity (IEC) and proton conductivity (PC), with values of ca. 1.98 meq.g(-1) and ca. 1.6 mS.cm(-1), respectively, were observed. The water uptake (WU) and water loss (WL) capacities of the IPMC membranes were measured at 25 degrees C, and found to have maxima of ca. 48% for 10 h, and ca. 36% at 6 V DC for almost 9 min, respectively. To analyze the actuation performance of the developed membrane, tip displacement and actuation force measurements were conducted. Tip displacement was found to be ca. 15.1 mm, whereas bending actuation was found to be 0.242 mN at 4 V DC. The moderate water loss, good proton conductivity (PC), high thermal stability, and good electrochemical properties of the developed IPMC membrane actuator position it as a cost-effective alternative to highly expensive conventional perfluorinated polymer-based actuators. FAU - Luqman, Mohammad AU - Luqman M AUID- ORCID: 0000-0003-2252-9821 AD - Department of Chemical Engineering, College of Engineering, Taibah University, P.O. Box 83, Yanbu 41911, Saudi Arabia. FAU - Anis, Arfat AU - Anis A AUID- ORCID: 0000-0002-9384-9067 AD - SABIC Polymer Research Centre, Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia. FAU - Shaikh, Hamid M AU - Shaikh HM AUID- ORCID: 0000-0002-3478-1349 AD - SABIC Polymer Research Centre, Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia. FAU - Al-Zahrani, Saeed M AU - Al-Zahrani SM AD - SABIC Polymer Research Centre, Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia. FAU - Alam, Mohammad Asif AU - Alam MA AD - Center of Excellence for Research in Engineering Materials (CEREM), King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia. LA - eng GR - 13-ADV1432-02/National Plan for Science, Technology and Innovation (MAARIFAH), King Abdulaziz City for Science and Technology/ PT - Journal Article DEP - 20220625 PL - Switzerland TA - Membranes (Basel) JT - Membranes JID - 101577807 PMC - PMC9322641 OTO - NOTNLM OT - artificial muscle OT - ionic polymer-metal composite (IPMC) OT - membrane OT - phosphotungstic acid OT - platinum OT - polyvinyl chloride OT - robotic actuator OT - sulfonated COIS- The authors declare no conflict of interest. EDAT- 2022/07/26 06:00 MHDA- 2022/07/26 06:01 PMCR- 2022/06/25 CRDT- 2022/07/25 14:04 PHST- 2022/05/01 00:00 [received] PHST- 2022/06/11 00:00 [revised] PHST- 2022/06/22 00:00 [accepted] PHST- 2022/07/25 14:04 [entrez] PHST- 2022/07/26 06:00 [pubmed] PHST- 2022/07/26 06:01 [medline] PHST- 2022/06/25 00:00 [pmc-release] AID - membranes12070651 [pii] AID - membranes-12-00651 [pii] AID - 10.3390/membranes12070651 [doi] PST - epublish SO - Membranes (Basel). 2022 Jun 25;12(7):651. doi: 10.3390/membranes12070651.