膜裂法驻极体纤维的实验研究

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.

Research on Making Electret Fiber by Tearing Electret Film Method

If electret fiber can be used,collecting efficiency of fiber filter will be improved greatly.The technology of tearing electret film is one of methods of making electret fiber.The key technology of making electret fiber is making electret film.The thesis research is about how to make electret film and what factors affected the surface voltage.Then polypropylene electret film,which has stable charge,was developed by using corona-charging method.The study shows that stable electret fiber film can be got from polypropylene film by using the method of corona charging,and then the electrical fiber can be made by the technology of tearing electrical film.The surface voltage of electret film have relationships with charging voltage,temperature,distances between electrodes and charging time,and will attenuate in index.