How is the waterproof effect of PTFE Vent Membrane - Wuxi Sinceriend New Material Technology Co., Ltd.

PTFE Vent Membran has excellent waterproof effect, mainly for the following reasons:
1. Material properties
PTFE is a material with extremely low surface energy. The contact angle of water on its surface is very large, usually reaching more than 110°, which makes it difficult for water to spread on its surface, but forms water droplets to roll down, thereby effectively preventing water penetration.
2. Microporous structure
PTFE Vent Membrane has a unique microporous structure. The pore size of these micropores is very small, generally between 0.1 and 10 microns. This pore size can prevent the passage of liquid water, because water will form a meniscus in the micropores. According to the Laplace equation, the pressure difference in the micropores will prevent water penetration. At the same time, these micropores are large enough to allow gas molecules to pass through and realize the breathable function.
3. Chemical stability
PTFE has excellent chemical stability and is not easily corroded by water and most chemicals. In the case of long-term contact with water, its performance will not change significantly, and it can always maintain a good waterproof effect.
4. Processing technology
Through advanced processing technology, Ptfe Vent Membrane can be compounded with other materials to form a multi-layer structure to further improve its waterproof performance. For example, in some applications, Ptfe Vent Membrane will be compounded with non-woven fabrics, polyester films and other materials. These materials can serve as a protective layer to prevent Ptfe Vent Membrane from physical damage and enhance the overall waterproof performance.
In summary, Ptfe Vent Membrane has excellent waterproof effect due to its advantages in material properties, microporous structure, chemical stability and processing technology. It has been widely used in many application scenarios that require waterproof and breathable, such as outdoor clothing, building waterproof and breathable materials, electronic equipment protection and other fields.