A5027470945- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- Ferroelectric and Piezoelectric Materials
- Adhesion, Friction, and Surface Interactions
- Conducting polymers and applications
- Surface Modification and Superhydrophobicity
- Tactile and Sensory Interactions
- Soft Robotics and Applications
- Force Microscopy Techniques and Applications
- Nanofabrication and Lithography Techniques
- Fuel Cells and Related Materials
- Molecular Sensors and Ion Detection
- Supercapacitor Materials and Fabrication
- Polymer Surface Interaction Studies
- Advanced Materials and Mechanics
- High voltage insulation and dielectric phenomena
- Luminescence and Fluorescent Materials
- Neurobiology and Insect Physiology Research
- Supramolecular Self-Assembly in Materials
- Mechanics and Biomechanics Studies
- Advanced machining processes and optimization
- Tribology and Lubrication Engineering
- Land Use and Ecosystem Services
- Advanced Surface Polishing Techniques
- Diamond and Carbon-based Materials Research
Nanjing University of Aeronautics and Astronautics
2014-2024
Ministry of Industry and Information Technology
2023-2024
Tianjin University
2020
Huazhong University of Science and Technology
2020
Wuhan University
2020
Xi'an Jiaotong University
2019
Jilin University
2019
University of Nevada, Las Vegas
2015-2018
Abstract Recently, researchers have concentrated on studying ionic polymer metal composite (IPMC) artificial muscle, which has numerous advantages including a relatively large strain under low input voltage, flexibility, high response, noise, light weight, and driving energy density. This paper reports recent developments in IPMC improvement methods, modeling, applications. Different types of IPMCs are described, along with various methods for overcoming some shortcomings, Nafion matrix...
Polymer hydrogels with intense yet tunable fluorescence are of great research interest due to their wide potential use in biological imaging, sensing, information storage, etc. However, the conventional fluorophores such as naphthalimide and its derivatives usually not recommended prepare highly fluorescent because aggregation-caused quenching (ACQ) nature spontaneous tendency undergo self-quenching quasi-solid-state hydrogel systems. Additionally, local regulation over behavior hydrogels,...
In this study, a highly stable air-operating ionic polymer–metal composite (IPMC) actuator with consecutive channels suitable for transportation of the cations and anions liquids was prepared by introducing removing copper foam. The electromechanical properties novel porous IPMC were investigated. Scanning electron microscopy observation showed that pores ranging in size from ∼100 nm to ∼50 μm distributed Nafion membrane. doped 1-ethyl-3-methylimidazolium thiocyanate liquid. A larger...
Abstract Many methods are used to manufacture bioinspired adhesive arrays such as photolithography and nanoimprinting methods, which very high cost time‐consuming. In this manuscript, projection microstereolithography 3D printing method is firstly adopted prepare the dry in several micrometers, low cost, time saving, convenient can realize rapid, large‐scale, high‐precision, controllable complex structure manufacture. The morphology properties of four kinds with flat punch, mushroom‐shaped,...
A newly developed ionic electro-active actuator composed of an electrolyte layer sandwiched between two graphene film layers was investigated. Scanning electronic microscopy observation and x-ray diffraction analysis showed that the sheets in stacked a nearly face-to-face fashion but did not restack back to graphite, resulting with low sheet resistance (10 Ω sq−1) adheres well membrane. Contact angle measurement surface energy (37.98 mJ m−2) polymer is 2.67 times higher than (14.2 Nafion...
As an excellent transducer, ionic polymer-metal composites (IPMCs) can act as both actuator and a sensor. During its sensing process, many factors, such the water content, cation type, surface electrode, dimensions of IPMC sample, have considerable impact on performance. In this paper, effect focused Pd-Au typed samples with various thicknesses, widths, lengths that were fabricated their deformation performances tested estimated using self-made electromechanical platform. our experiments, we...
Inspired by the sensing mechanism of an ionic polymer-metal composite (IPMC) strip, in which electrical response is induced elastic stress gradient across strip's thickness, we propose a new polymer pressure sensor with shape that based on ion migration. Under applied pressure, generated top and bottom surfaces gradient, then causes cations to migrate toward lower side. This cation redistribution generates response. To verify this concept, millimeter-scale Nafion was fabricated casting...
In this work, we printed a Nafion precursor membrane by fused deposition modeling (FDM) rapid prototyping technology and further fabricated IPMCs electroless plating. The ion-exchange capacity of the was tested, morphology observed. electro-mechanical properties under AC voltage inputs were studied, grasping experiments performed. results show that after hydrolysis has good ability water-holding capacity. SEM observed thickness IPMC's electrode layer about 400 nm, platinum tightly combined...
Two stainless steel templates were fabricated using electric-spark machining, and a hierarchical surface texture of ionic polymer was produced both polishing replication methods, which microscale nanoscale groove-shaped microstructures at the polymer. The morphology Nafion membrane metal electrode observed scanning electron microscopy (SEM) energy dispersive spectroscopy (EDS). SEM EDS line-scan analysis indicated that interfacial area considerably increased an excellent obtained with...
Ionic polymer-metal composite (IPMC) is an electro-active polymer material, which has many advantages such as small size, light weight, low driving voltage, large strain, and good biocompatibility. However, the conventional sheet IPMC shortcoming of only bending in two-dimensional plane, greatly limits application field interventional surgery. In this work, a square rod-shaped with multi-degree-of-freedom motion was fabricated, displacement blocking force different directions are measured...
We develop an ionic polymer metal-carbon nanotube composite (IPMCC) actuator composed of a multiwalled carbon (MWCNT)/Nafion membrane sandwiched between two hybrid electrodes, palladium, platinum and MWCNTs. The surface morphology cross-sectional structure the electrode were observed using scanning electron microscopy (SEM). SEM investigation indicated that MWCNT layer can adhere very well with platinum–palladium metal electrode, fill cracks in surface, prevent oxidation nanoscale particles....
Controlled and switchable adhesion is commonly observed in biological systems. In recent years, many scholars have focused on making bio-inspired adhesives. However, a adhesive with high performance excellent dynamic switching properties still challenge. A Shape Memory Polymer Bio-Inspired Adhesive (SMPBA) was successfully developed, well realizing (about 337 kPa), relatively low preload 90 adhesion-to-preload ratio 3.74), 6.74), easy detachment, which are attributed to the controlled...