The microporous film of ePTFE hydrophobic and oleophobic breathable film raw material is composed of the repeated arrangement of the microscopic structure with "nodes" and "fibers". The average micropore diameter of the conventional ePTFE hydrophobic and oleophobic breathable film raw material is about 0.1~10 microns (μm). That is, if the external diameter of particulate matter is larger than the micropore size of ePTFE hydrophobic and oil-repellent breathable film raw materials, it cannot pass through. For example, dust, fog, rain and other sizes are mostly particles larger than 20μm; For water vapor, conventional gas (methane, ethane, etc.), its microscopic size (molecular particle diameter) is about 0.0004μm, then, these substances can be from the ePTFE hydrophobic oil permeable film raw material of PTFE micropore membrane aperture through, That is, ePTFE hydrophobic and oil-repellent breathable film raw materials are waterproof (rain, fog, liquid droplets), breathable (water vapor, organic gas), dust (dust, pollen and other particulate matter) functions. Moreover, ePTFE hydrophobic and oleophobic breathable film raw materials can also choose reasonable enough initial breathable volume according to the actual situation, in contact with low surface tension liquid, liquid sealing performance is very good. ePTFE hydrophobic and oleophobic breathable membrane materials will prevent such liquids from adhering to and clogging these breathable membranes, reducing their breathable capacity, which can cause serious damage to electronic products. Therefore, ePTFE hydrophobic and oil-repellent breathable film raw material processing manufacturers of oil-repellent and waterproof breathable film products can make electronic products have excellent anti-liquid sealing performance for low surface energy substances, can easily "roll off" liquid, so as to ensure continuous breathable, it is very important to meet this.
The surface pore of Goel waterproof and oil proof breathable film material is very small compared with the traditional waterproof film, so that the waterproof and oil proof breathable film material formed a larger contact Angle. Oil is difficult to adhere to or penetrate the permeable film, making the waterproof and oil-proof permeable film materials have higher performance in many demanding applications. Hydrophobic and oilphobic breathable film die-cutting products can help quickly balance the pressure, reduce the pressure difference to a certain extent, because this atmospheric pressure difference will affect the effect of the washer and seals in the equipment, causing the acoustic device pressure is too large and affect the acoustic performance. Hydrophobic oil permeable membrane solutions are designed to maintain air permeability and protect some electronic devices from rapid pressure changes without sacrificing fluid and particulate protection.