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为提高纤维过滤器的净化性能,提高除尘效率降低阻力,增加容生量.研制驻极体纤维笔者形成稳定的驻极体薄膜,笔者就驻极体薄膜的形成及其表面电位的衰减进行了研究,采用电晕荷电法研制了具有稳定荷电的聚丙烯驻极体薄膜.研究表明,聚丙烯薄膜可以通过电晕荷电法形成稳定的驻极体薄膜,进而可采用膜裂法制造驻极体纤维.驻极体薄膜的表面电位与充电电压、温度、极间距离、充电时间有关,电晕充电法形成的薄膜驻极体的表面电位呈e指数衰减.
In order to improve the purification performance of fiber filter and improve the efficiency of dust removal to reduce resistance and increase the capacity of the development of the electret fiber I formed a stable electret film, the author of the electret film and the formation of its surface potential attenuation Research, the use of corona charging method developed a stable charge of polypropylene electret film.Studies have shown that polypropylene film by corona charging method to form a stable electret film, which can then be used membrane cleavage method The surface potential of the electret film is related to the charging voltage, temperature, distance between electrodes and charging time, and the surface potential of the film electret formed by corona charging shows an exponential decay.