The pore size of ptfe waterproof and breathable membrane is between the size of gas molecules and liquid matter.
The natural hydrophobic properties of PTFE materials can make liquid water impermeable in the natural state. Therefore, gaseous substances can diffuse in two directions through PTFE materials, but liquid water cannot penetrate.
When the ptfe waterproof breathable membrane is in the state of water vapor, the water particles are very small, and these water particles can penetrate along the capillary tube to the other side, causing vapor permeability.
If water vapor condenses into water droplets, the particles will become larger, and the surface tension of the water droplets will act, and the water molecules will not be able to smoothly leave the water droplets, penetrate and reach the other side. In other words, this process This can prevent water penetration, allowing the waterproof and breathable membrane to truly have a waterproof function.
With the development of science and technology and the diversification of use environments, the sealing reliability of electronic components is facing increasing challenges, and higher and higher requirements are put forward for the protection of electronic components.
In the electronics industry, our protective products are mainly used in fields such as sensors, gas detectors, batteries, hearing aids, video cameras, digital cameras, underwater equipment and testing instruments.
There are various product forms, including products with adhesive backing, threaded respirators, breathable plugs and various injection molded products designed together with customers.
PTFE waterproof and breathable membrane has excellent breathability, corrosion resistance, aging resistance, high temperature resistance and other properties.
According to the usage requirements, the pore diameter can be between 0.1-10um, the thickness can be between 2-100um, the porosity can reach 50%–80%, and there are up to hundreds of millions of micropores per square centimeter.
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