A5034194408- Advanced Sensor and Energy Harvesting Materials
- Advanced Materials and Mechanics
- Additive Manufacturing and 3D Printing Technologies
- Polymer composites and self-healing
- Automotive and Human Injury Biomechanics
- Photopolymerization techniques and applications
- Dielectric materials and actuators
- Photochromic and Fluorescence Chemistry
- Tactile and Sensory Interactions
- Vehicle Noise and Vibration Control
- 3D Printing in Biomedical Research
- Surface Modification and Superhydrophobicity
- Acoustic Wave Phenomena Research
- Soft Robotics and Applications
- Orthopaedic implants and arthroplasty
- Elasticity and Material Modeling
- Lignin and Wood Chemistry
- Cellular and Composite Structures
- Effects of Vibration on Health
- Micro and Nano Robotics
- Traumatic Brain Injury Research
- Trauma and Emergency Care Studies
- Laser Material Processing Techniques
- TiO2 Photocatalysis and Solar Cells
- Hydrogels: synthesis, properties, applications
Southern University of Science and Technology
2021-2024
Great Bay University
2024
Hunan University
2016-2021
Singapore University of Technology and Design
2020-2021
Laser Research Institute
2020
Changsha University
2020
SAIC-GM-Wuling (China)
2017
Beihang University
2010
This article proposes an approach of 3D printing structures consisting stretchable hydrogels bonded with UV curable polymers.
Abstract 4D printing is an emerging fabrication technology that enables 3D printed structures to change configuration over “time” in response environmental stimulus. Compared with other soft active materials used for printing, shape‐memory polymers (SMPs) have higher stiffness, and are compatible various technologies. Among them, ultraviolet (UV)‐curable SMPs Digital Light Processing (DLP)‐based fabricate SMP‐based complex geometry high‐resolution. However, UV‐curable limitations terms of...
Abstract There are growing demands for multimaterial three-dimensional (3D) printing to manufacture 3D object where voxels with different properties and functions precisely arranged. Digital light processing (DLP) is a high-resolution fast-speed technology suitable various materials. However, challenging DLP as the current switching methods require direct contact onto printed part remove residual resin. Here we report DLP-based centrifugal (CM) method generate large-volume heterogeneous...
Thick-panel origami has shown great potential in engineering applications. However, the thick-panel created by current design methods cannot be readily adopted to structural applications due inefficient manufacturing methods. Here, we report a and strategy for creating structures with excellent foldability capability of withstanding cyclic loading. We directly print through single fused deposition modeling (FDM) multimaterial 3D printer following wrapping-based fabrication where rigid panels...
Abstract 4D printing technology combines 3D and stimulus-responsive materials, enabling construction of complex objects efficiently. However, unlike smart soft ceramics is a great challenge due to the extremely weak deformability ceramics. Here, we report feasible efficient manufacturing design approach realize direct Photocurable ceramic elastomer slurry hydrogel precursor are developed for fabrication hydrogel-ceramic laminates via multimaterial digital light processing printing. Flat...
Ionogels are promising material candidates for ionotronics due to their excellent ionic conductivity, stretchability, and thermal stability. However, it is challenging develop 3D printable ionogels with both electrical mechanical properties. Here, we report a highly conductive stretchable nanostructured (CSN) ionogel printing ionotronic sensors. We propose the photopolymerization-induced microphase separation strategy prepare CSN comprising continuous conducting nanochannels intertwined...
Abstract Four-dimensional (4D) printing is an advanced manufacturing technology that has rapidly emerged as a transformative tool with the capacity to reshape various research domains and industries. Distinguished by its integration of time dimension, 4D allows objects dynamically respond external stimuli, setting it apart from conventional 3D printing. This roadmap been devised, contributions 44 active researchers in this field 32 affiliations world-wide, navigate swiftly evolving landscape...
4D printing enables 3D printed structures to change shape over "time" in response environmental stimulus. Because of relatively high modulus, memory polymers (SMPs) have been widely used for printing. However, most SMPs are thermosets, which only one permanent shape. Despite the efforts that implement covalent adaptable networks (CANs) into achieve reconfigurability, weak thermomechanical properties current CAN-SMPs exclude them from practical applications. Here, we report reconfigurable via...
Thermally responsive shape memory polymers (SMPs) used in 4D printing are often reported to be activated by external heat sources or embedded stiff heaters. However, such heating strategies impede the practical application of due lack precise control over limited ability accommodate stretching during programming. Herein, we propose a novel paradigm fabricating stretchable circuits with fractal motifs via electric-field-driven microscale 3D conductive paste for seamless integration into...
Abstract Vitrimers, a type of dynamically crosslinked polymers that combine the solvent‐ and heat‐resistance thermosets with reprocessability thermoplastics, offer new solution to problem plastic pollution. However, current recycling approaches vitrimers greatly constrain shapes recycled simple geometries, thus significantly limiting application scopes vitrimers. Here, but universal method for upcycling vitrimer wastes is reported by developing UV curable (UVR) system. Conventional...
Abstract Two-photon polymerization (TPP) is a cutting-edge micro/nanoscale three-dimensional (3D) printing technology based on the principle of two-photon absorption. TPP surpasses diffraction limit in achieving feature sizes and excels fabricating intricate 3D micro/nanostructures with exceptional resolution. The concept 4D entails fabrication structures utilizing smart materials capable undergoing shape, property, or functional changes response to external stimuli over time. integration...
Ionic conductive elastomers (ICEs) are emerging stretchable and ionic materials that solvent-free thus demonstrate excellent thermal stability. Three-dimensional (3D) printing creates complex 3D structures in free forms is considered as an ideal approach to manufacture sophisticated ICE-based devices. However, the current technologies constrain printed ICE a single material, which greatly limits functionality performance of devices machines. Here, we report digital light processing...
Abstract The chemically crosslinked network structures make epoxies, the most common thermosets, unable or hard to be recycled, causing environmental problems and economic losses. Epoxy‐based vitrimers, polymer networks deriving from epoxy resins, can thermally malleable according bond exchange reactions (BERs), opening door recycle thermosets. Here a series of experiments were carried out study effects processing conditions (such as particle size distributions, temperature, time, pressure)...
Stretchable strain sensor detects a wide range of variation and is therefore key component in various applications. Unlike traditional ones made elastomers doped with conductive components or fabricated liquid conductors, ionically hydrogel-based sensors remain under large deformations are biocompatible. However, dehydration challenging issue for the latter. Researchers have developed hydrogel-elastomer-based where an elastomer matrix encapsulates hydrogel circuit to prevent its dehydration....
The effects of particle size, temperature, time, and pressure on the mechanical properties regenerated epoxy-acid vitrimers were investigated, which helped to refine vitrimer reprocessing condition parameter toolbox.
Abstract Highly stretchable and transparent ionic conducting materials enable electronic devices to have a distinguishable working mechanism performances from the conventional electronics. Compared with hydrogels which contain large amounts of water dissolve ions, conductive elastomers (ICEs) are solvent‐free, intrinsically immune dehydration. However, current manufacturing technologies constrain ICE‐based ionotronics simple bulk geometries single material, greatly limits functionality...