納米球狀二氧化硅改善聚酯薄膜耐電暈性能
[Abstract]:Spherical SiO2 particles with different diameters were prepared by microemulsion method. Scanning electron microscopy and X-ray diffraction analysis showed that the particle size distribution was uniform and the particle size was amorphous or microcrystalline. Nano-spherical SiO2 particles were added into poly (ethylene terephthalate) (PET) by in-situ synthesis. The organic-inorganic hybrid polyester films were prepared by ultrasonic dispersion, and their corona resistance was tested. The effects of Sio _ 2 content and thickness of PET film on corona resistance voltage were discussed. The results show that with the introduction of nanometer spherical silica and the formation of organic-inorganic network structure, the reverse electric field is formed inside the film, the corona aging is delayed, and the corona resistance voltage performance of the same thickness (250 渭 m) polyester film is improved by about 20%. The partial discharge voltage of the Tedler-PET-Tedler (TPT) composite backplane developed by corona resistant PET with a thickness of 350 渭 m can reach 1500 V in air, which can meet the technical requirements of the new photovoltaic module.
【作者單位】: 西安交通大學(xué)電氣工程學(xué)院;國家絕緣材料工程技術(shù)研究中心;
【分類號(hào)】:TB383.2;TQ323.4
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