Expanded polytetrafluoroethylene (e-PTFE) is a microporous membrane formed by pushing and expanding PTFE resin. It has a special fibrous microporous structure, high mechanical properties, small pore size, and waterproof and breathable properties. It can be used in electronic products, special clothing, industrial filtration, medical and other fields. It can be used to prepare electronic membranes for mobile phones and speakers, nano masks, military protective clothing, medical filling materials, seawater desalination membranes, sewage treatment membranes, air filtration products, etc. The e-PTFE clothing film is mainly used for special protective clothing fabrics, such as firefighting clothing, military uniforms, coldproof clothing and outdoor sports clothing, etc. At the same time, it can also be used to manufacture waterproof shoes, hats, tent lights, which have the functions of waterproof, dustproof, moisture permeability, windproof, etc. Compared with similar waterproof and moisture-permeable membranes, it has light weight, high hydrostatic pressure resistance, large moisture permeability, and is comfortable to wear.