A5103948098- Polymer composites and self-healing
- High voltage insulation and dielectric phenomena
- Advanced Sensor and Energy Harvesting Materials
- Electrospun Nanofibers in Biomedical Applications
- Marine Sponges and Natural Products
- Power Transformer Diagnostics and Insulation
- Polymer Nanocomposites and Properties
- Aerosol Filtration and Electrostatic Precipitation
- Photochromic and Fluorescence Chemistry
- Advanced Materials and Mechanics
- Surface Modification and Superhydrophobicity
- Silk-based biomaterials and applications
- Thermal Analysis in Power Transmission
- Silicone and Siloxane Chemistry
- Advanced Polymer Synthesis and Characterization
- Electrical Fault Detection and Protection
- Polydiacetylene-based materials and applications
- Supercapacitor Materials and Fabrication
- Advanced Cellulose Research Studies
- Conducting polymers and applications
- Synthetic Organic Chemistry Methods
- Electrohydrodynamics and Fluid Dynamics
- biodegradable polymer synthesis and properties
- Lightning and Electromagnetic Phenomena
- Engineering Applied Research
Guangzhou University of Chinese Medicine
2021-2025
Chinese University of Hong Kong, Shenzhen
2025
Chongqing University of Science and Technology
2024
Jinan University
2012-2024
I-Shou University
2024
Huaiyin Institute of Technology
2019-2023
Southwest University
2020-2022
Sichuan University
2013-2022
State Key Laboratory of Silkworm Genomic Biology
2020-2022
Ministry of Agriculture and Rural Affairs
2020
Significance Glassy polymers are widely used as structural materials in aerospace vehicles, airplanes, automobiles, biomedical devices, and so on. However, glassy difficult to self-heal at room temperature due their frozen molecules. For example, the window glass of airplanes made polycarbonate cannot repair mechanical damages autonomously, which could lead a catastrophe. To impart with self-healing ability, we take advantage high mobility hyperbranched polymers, introduce hydrogen...
We report a new phenomenon in which the reversible formation and disruption of cellulose nano-whisker (CNW) percolation network an elastomeric thermoplastic polyurethane (TPU) matrix leads to unprecedentedly rapidly switchable shape-memory effect (SME) that may be activated by water. The materials have been fully characterized investigate SME using number different experimental techniques including cyclic tensile deformation, dynamic mechanical analysis, FTIR polarized Raman spectroscopy. A...
In this study, a series of smart polymer fibers with shape memory effect were developed. Firstly, set polyurethanes varying hard-segment content synthesized. Then, the solutions spun into through wet spinning. The thin films considered to represent nature polyurethanes. Differential scanning calorimetry tests performed on both and compare their thermal properties. Wide angle x-ray diffraction small scattering techniques applied investigate structure fibers, change taking place in spinning...
Mechanical strength, toughness, and defect tolerance are usually exclusive in most artificial materials. Herein, inspired by many biomaterials that overcome this tradeoff integrating soft hard ingredients through elaborate structural designs, we report a facile latex-assembly method to fabricate ultra-tough, strong, defect-tolerant elastomers. The elastomers featured microscopic inverse opal-mimetic rigid skeleton of dynamically cross-linked chitosan continuous matrix vulcanized natural...
To illustrate the shape memory properties of polyurethane (SMPU) fiber and difference thermal/mechanical between SMPU other various man-made fibers, series having hard segment content were synthesized with pre-polymerization method spun wet spinning process. Differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), testing conducted to study particular in comparison fibers such as nylon6, polyester, Lycra XLA. In addition, preparation fiber, effect thermal setting...
Abstract Shape‐memory polyurethane/multiwalled carbon nanotube (SMP–MWNT) composites with various multiwalled (MWNT) contents were synthesized, and the corresponding SMP–MWNT fibers prepared by melt spinning. The influence of MWNT content on spinnability, fracture morphology, thermal mechanical properties, shape‐memory behavior polymer was studied. spinning ability SMP–MWNTs decreased significantly increasing content. When reached 8.0 wt %, could not be produced because poor rheological...
In this paper, the mechanical properties, especially shape memory of fibres (SMFs) prepared by melt spinning method and wet were studied. It was observed that melt-spun SMFs had higher tenacity, breaking elongation effect compared with those wet-spun SMFs. The results from differential scanning calorimetry (DSC), x-ray diffraction (XRD) dynamic analysis (DMA) used to understand underlying physics behind these property differences. is concluded have phase separation, which in both better soft...
Abstract In this article, shape memory polyurethane fibers were prepared by wet spinning. The switching temperature was the melting of soft segment polycaprolactone phase at 36.20°C. fibers' mechanical properties, especially explicitly characterized and compared with that from some commercialized elastic fibers. 40 denier fiber (SMF) had a tenacity about 0.93–98 cN/dtex, strain break ranged 85–115%. At ambient temperature, modulus SMF in general larger than those Elaspan Newstar fixity ratio...
Self-healing materials should take effect immediately following crack generation in principle, but the speed of autonomic recovery mechanical properties through either extrinsic or intrinsic healing strategy reported so far is not that fast. Mostly, a couple hours are taken for reaching steady state maximum healing. To accelerate process, authors this work make use antimony pentafluoride as instant hardener epoxy and successfully encapsulate highly active pentafluoride-ethanol complex terms...
Due to the dynamic nature of networks and high mobility molecular chains, self-healing elastomers are usually confronted with trade-off between efficiency mechanical properties. Herein, a ionomer both performance has been successfully developed by grafting bromobutyl rubber (BIIR) pyridine-based derivatives. Interestingly, substituents on pyridine ring can be used regulate interaction forces ionic clusters dynamics. The electron-donating effect facilitates stable π–π stacking pyridyl ions,...
A bottom-up strategy to reinforce self-healing elastomers with <italic>in situ</italic> assembled supramolecular nanosheets switchable interfacial covalent bonds.
Abstract Due to the delicious taste and remarkable bioactivities of Meretrix meretrix L., they have garnered attention in food field. However, challenge arises when attempting separate proteins from crude polysaccharides with similar polarity solubility. This paper aimed develop a novel deproteinization method L. (CPM) based on palygorskite‐chitosan composite aerogel (Pal‐CS aerogel) sieving effect. We focused influence aerogels' pore structure selective CPM. In comparison palygorskite or...
Abstract Searching new shape memory polymer and the associating synthesis technology are critical on development of smart materials. In this paper, a comprehensive study Poly(hexylene adipate) PHA being soft segment polyurethane (SMPU) was presented. Bulk polymerization method employed to synthesize SMPU with different length (SSL) hard content (HSC). The influences SSL HSC its morphology thermomechanical property using DSC, DMA, POM, behavior were presented here. results indicate that...
Abstract Understanding the relationship between number‐average molecular weight ( M n ) and shape memory behavior of polymers is crucial for a complete picture their thermomechanical properties, hence development smart materials, and, in particular, textile technology. We report here on study properties as function polymers. Shape polyurethanes (SMPUs) different were synthesized, with various catalyst contents or molar ratio( r = NCO/OH) composition. In two types SMPU, namely T m g according...
This paper reviews the developments of essential elastic fibers. The fibers include extensible polymer with low or high elasticity and reversibility which consists polyurethane fiber, polyester‐ether polyester olefin based fiber like XLA, hard bio‐component shape memory emphasis review is on development research process synthesis, production, characteristics, microstructure, end‐use in industry. It also draws some conclusions about current problems future directions.
Shape memory polymers are stimulus responsive smart materials that can be applied in several forms such as films, fibers, and foams for a wide range of applications. Novel stress-memory behavior at fiber level is yet to uncovered, which would favorable control stress the broad horizon numerous functions. In this work, semi-crystalline segmented polyurethane was synthesized prepare filaments/fibres films. A rational experimental design established both films filaments systematically studied...