研究目的
Investigating the effect of ZnS particle size on the dielectric and energy storage properties of ZnS/polymer composites.
研究成果
ZnS particles with a size of 100 nm significantly enhance the breakdown strength and energy storage density of PVDF composites. The composite with 3 wt% 100 nm ZnS achieves the highest breakdown strength (~496.6 kV/mm) and energy density (~6.47 J/cm3), demonstrating the potential for high-performance dielectric applications.
研究不足
The study focuses on the effect of ZnS particle size on dielectric and energy storage properties but does not explore the impact of other filler types or polymer matrices. The optimization of filler content is limited to ZnS, and the study does not address long-term stability or scalability of the composite films.
1：Experimental Design and Method Selection:
Hydrothermal synthesis of ZnS particles with controlled sizes (100 nm, 500 nm, and 3 μm) using PVP and CTAB as capping agents. Solution mixing and coating process for preparing ZnS/PVDF composite films.
2：Sample Selection and Data Sources:
Zinc acetate dihydrate, sodium thiosulfate, thioacetamide, PVP, CTAB, PVDF, ethanol, and DMF were used as materials.
3：List of Experimental Equipment and Materials:
JEM-7401 field emission SEM for morphology observation, XRD for phase identification, Agilent 4294A impedance analyzer for dielectric properties, CS9912BX dielectric strength tester for breakdown strength measurement.
4：Experimental Procedures and Operational Workflow:
Preparation of ZnS particles via hydrothermal reaction, fabrication of ZnS/PVDF composite films by solution mixing and coating, characterization of dielectric properties and breakdown strength.
5：Data Analysis Methods:
Weibull statistical distribution method for analyzing breakdown data, calculation of energy density from D-E loops.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
