The nanofiber film is produced by high voltage electrospinning process.
Structural Features: The material features a microscopic "microfiber-node" network structure with a minimum pore diameter of 0.2 μm, containing billions of pores per square centimeter. These pores measure one-hundredth the size of water droplets (approximately 20 μm) and are thousands of times larger than water molecules. Due to surface tension, this structure effectively blocks liquid water or solid particles while allowing air and/or water vapor to pass through.

PTFE membrane is a porous film made from polytetrafluoroethylene through extrusion and biaxial stretching procedures. This material boasts exceptional chemical stability and heat resistance, featuring an asymmetric structure with a spider-web-like surface pattern. It has a porosity exceeding 85%, containing 1.4 billion micropores per square centimeter with pore sizes ranging from 0.02 to 15 μm. The three-dimensional network structure creates a unique curved interlocking configuration of micropores.
Clothing membranes utilize micro-pore size variations to achieve waterproof, moisture-permeable, wind-resistant, and thermal insulation properties, widely used in protective gear and outdoor equipment. Filter membranes, leveraging their chemical corrosion resistance and high-temperature tolerance, efficiently intercept industrial flue gas particles with a filtration efficiency of 99.99%. Purification membranes filter bacteria and particulates through precision pores ranging from 0.05-0.45 μm, designed for clean environments like pharmaceutical facilities and laboratories.
The most important feature of PTFE film material is high strength, the medium strength PTFE film thickness is only 0.8mm, but its tensile strength has reached the level of steel; Moreover, it has a lower elastic modulus and feels soft to the touch.