Today, in order to better amplify and improve the filtration process, and finally apply it to actual large-scale production, the ptfe liquid filtration membrane developed by the team can meet people’s needs.
There are generally three types of membrane materials for ptfe filter membranes: fibers, synthetic resins and ceramics.
Some membrane materials have materials that are weaker than oxidants such as salts and ozone, and materials that are decomposed by microorganisms.
In addition, RO used for seawater desalination has membranes that remove bromine that generates THM and membranes that cannot remove bromine, depending on the use.
The preparation method of PTFE liquid filtration membrane is to fully mix PTFE polytetrafluoroethylene fine powder with additives and then enter the extruder. The powder is pushed to squeeze out strips of PTFE, and then rolled under a rolling machine. diaphragm.
After heating to remove the additives, it can be stretched longitudinally and transversely. After heat treatment, shaping, cutting and winding, a biaxially stretched microfiltration membrane is obtained.
PTFE liquid filtration membrane has excellent breathability, corrosion resistance, aging resistance, high temperature resistance and other properties.
According to the usage requirements, the pore diameter can be between 0.1-10um, the thickness can be between 2-100um, the porosity can reach 50%–80%, and there are up to hundreds of millions of micropores per square centimeter.
The product has high filtration efficiency and can meet the filtration efficiency level requirements of sub-high efficiency, high efficiency and ultra high efficiency air filters.
In addition to being used for water treatment, filtration membranes can also be used for ultrapure water production and seawater desalination. Reverse osmosis membranes (nano filtration membranes) are generally used.
It is also used for urine and feces treatment, urban waterway treatment, various wastewater treatment, etc. Generally, ultrafiltration membranes and microfiltration membranes are used.
In industry, it can be used in dairy manufacturing, semiconductor manufacturing, food manufacturing, paper manufacturing, pharmaceutical manufacturing, etc. Ultrafiltration membranes and microfiltration membranes are also generally used.
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