In order to effectively protect the acoustics of speakers or microphones of high-tech smart products such as mobile phones and watches Devices and waterproof materials must have a sound outlet that connects the acoustic device to the outside world. The waterproof sound-permeable membrane of phones and watches can meet the above requirements.
Teflon waterproof and breathable membrane uses the former. Since the minimum diameter of water droplets is about 20 microns, while the diameter of water vapor molecules is only about 0.0004 microns, there is a huge difference in the diameters of the two. Steam can pass through the microporous membrane through the principle of diffusion. The surface tension of liquid water or water droplets prevents water molecules from passing through, thus preventing water penetration and making the breathable membrane waterproof.
The pore size of the waterproof sound-permeable membrane for phones and watches can range from 0.1 to 10um, the thickness can range from 2 to 100um, the porosity can reach 50%–80%, and there are hundreds of millions of microorganisms per square centimeter. hole. It can effectively isolate water points, and the waterproof grade can reach IPX7 or above. Protect electronic instruments from becoming unusable due to moisture or water. Compared with other breathable filter materials, it has excellent air permeability. It is difficult to form a thick dust layer on the surface of the film, and the dust can be naturally peeled off.
The ptfe film manufacturer specializes in the production of waterproof and sound-permeable membranes for phones and watches. It has a full set of advanced production equipment and technology, and also has an advanced clean room and an independent composite slitting workshop to ensure the production quality of ptfe films. ; The products produced are made of imported raw materials, with high uniformity, stable performance, good air permeability, and a filtration efficiency of up to 99.999995%! It can basically meet the filtration efficiency grade requirements of sub-high efficiency, high efficiency and ultra high efficiency filters. Interested parties can enter the store to inquire and purchase! </p
