It has been more than 60 years since the American DuPont Company began producing polytetrafluoroethylene in 1945. Now, as an important product of ptfe, phone watch waterproof sound-permeable membrane is widely used.
In life scenarios, especially in the children’s phone and watch industry for children, the requirement for product waterproofing is particularly important. Because children are active and curious, they always have endless hands to wash every day, plus sweating, hand washing, swimming, rain and snow, so their wrists are exposed to water every day. If the waterproof level is not enough, it is very easy for the watch to be damaged due to water immersion, and you will fall into a vicious cycle of buying new watches from time to time.
The waterproof sound-permeable membrane for phones and watches made by mechanically stretching PTFE material can ensure the complete retention of impurities such as bacteria and has a large flux. The material is resistant to high temperatures, strong acids and alkali, and has wide chemical applicability. When used for gas filtration, it can achieve 100% retention of various phages, bacteria and particles above 0.02um. The membrane has high filtration efficiency and can meet the filtration efficiency level requirements of sub-high efficiency, high efficiency, and ultra-high efficiency air filters.
The waterproof sound-permeable membrane for phones and watches produced has strong hydrophobicity, chemical resistance, waterproofness and low wind resistance, and can achieve high dust removal efficiency. For some very small particles with a diameter of 0.1um-0.3um, the filtration level can reach H13-U16. In addition, the biaxially stretched film can undoubtedly achieve ultra-low emissions in intercepting various types of dust generated during the company’s production process, and it fully complies with current environmental protection standards. Interested parties can enter the store for consultation and purchase!
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