用热拉伸法制备用于气体探测器的超薄聚丙烯薄膜存在膜易破和粘结等问题。分析薄膜制备的物理过程和膜破的原因后，不用大面积聚四氟乙烯薄膜做防粘层，而用带锥形泄气孔表面喷涂聚四氟乙烯的拉膜盘和从高压氮气获取的准静态拉伸压力制得了超薄薄膜和电极． The ultra-thin polypropylene film prepared by thermal drawing method for gas detector has some problems such as breakage and adhesion of the film. After analyzing the physical process of film preparation and the reason of film breakage, instead of using a large area of ​​polytetrafluoroethylene film as an anti-sticking layer, a Teflon film was sprayed on the surface with a conical vent hole and a standard obtained from high-pressure nitrogen gas Static tensile stress made of ultra-thin films and electrodes.