A5085558668- Advanced Sensor and Energy Harvesting Materials
- Polymer crystallization and properties
- Dielectric materials and actuators
- High voltage insulation and dielectric phenomena
- Additive Manufacturing and 3D Printing Technologies
- Metallurgical Processes and Thermodynamics
- Rheology and Fluid Dynamics Studies
- Natural Fiber Reinforced Composites
- Electrospun Nanofibers in Biomedical Applications
- Polymer Nanocomposites and Properties
- Electrodeposition and Electroless Coatings
- Polymer Foaming and Composites
- Solidification and crystal growth phenomena
Tianjin University
2020-2021
Yanshan University
2015
Flow-induced crystallization of poly(vinylidene fluoride) (PVDF) was investigated for a broad temperature range from 160 to 220 °C by in situ synchrotron wide-angle X-ray diffraction (WAXD) and small-angle scattering (SAXS). Unexpectedly, the electroactive β-phase is obtained directly melt with an extensional flow at 160–200 °C, which contrary quiescent generating pure α-phase. For observation equatorial SAXS streak without WAXD signals indicates generation fibrillar shish. Second, within...
The flow-induced crystallization of poly(vinylidene fluoride) (PVDF)–ion composites in the presence externally added ions was investigated by situ wide-angle X-ray diffraction (WAXD) and ex Fourier transform infrared (FTIR) spectroscopy. In this work, two types hexadecyl trimethyl ammonium bromide (CTAB) tetrabutylammonium hydrogen sulfate (TBAHS) with distinct electrostatic interactions were chosen at a weight concentration 0.5% to design different influences on crystallization. For...
Polymorphism is determined by the intrinsic molecular architecture designed via chemical synthesis and external flow stimuli applied in practical processing. In this work, flow-induced crystallization of butene-1/1,5-hexadiene random copolymers with 1.38–2.81 mol % cyclic methylene-1,3-cyclopentane (MCP) co-units was studied combination situ synchrotron wide-angle X-ray diffraction (WAXD) an extensional rheometer. The results show that incorporation unique MCP facilitates appearance trigonal...
The flow-induced formation and relaxation of the representative oriented shish-kebab structure were studied with synchrotron small-angle X-ray scattering (SAXS) method. flow duration was varied from 2 to 6 s at an identical strain rate reveal effect time on stability dimension formed shish. It found that short able generate shish during flow, which, however, relaxed isothermal process after cessation flow. An increase in can improve long stable nucleate growth kebab lamellae. In addition,...