Requirements for the use of polytetrafluoroethylene composite membrane
Using a perfluorinated polymer obtained by polymerizing the monomer tetrafluoroethylene as the base, and then using other bases Composite materials made of composite materials as reinforcements – polytetrafluoroethylene composite membranes are a type of composite materials that have developed rapidly in recent years.
At present, the raw materials for melt-blown nonwoven fabrics in the world include polypropylene (PP), polybutylene terephthalate (PBT), polylactic acid (PLA), and polyurethane. (TPU) etc. PP is the most commonly used raw material in melt-blown production. Its melting point is around 164~170°C. During processing, the melt fluidity is good and the production process is short. It is widely used in the field of filtration. There are many composite products on the market for PP melt-blown non-woven fabrics and wet-process PET non-woven fabrics, generally using adhesive composite or ultrasonic spot welding composite.
The use of polytetrafluoroethylene composite membrane requires that the pore diameter can be between 0.1-1um, the thickness can be between 10-100um, the porosity can reach 50%-90%, and it can reach hundreds of millions per square centimeter. micropores. Since the pore size of the microporous membrane is much larger than that of water vapor molecules, and the operating temperature can reach -150℃ – 250℃, the PTFE high-efficiency filter paper has excellent corrosion resistance, aging resistance and high temperature resistance. This membrane has the largest pore size on the market currently. Microporous organic membrane with high efficiency, corrosion resistance, aging resistance, high temperature resistance, waterproof, moisture permeability, good air permeability, and wide range of uses.
It is a manufacturer of environmentally friendly polytetrafluoroethylene composite membrane materials that specializes in R&D, production and sales. Our company is different from other manufacturers. Our company can according to the user’s requirements. By optimizing the key technical parameters of speed ratio, pressure ratio, operating temperature and other parameters, online control of air permeability, thickness and void ratio can be achieved based on the ratio and pore-forming medium to meet your different requirements. Interested parties can enter the store for consultation.
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