Bubble point pressure is the gas pressure at which liquid is forced out of the smallest pores from a completely wetted PTFE bubble point membrane composite material. The liquid used in the experiment must completely wet the membrane. At this time, the membrane The holes will fill with liquid.
When the gas pressure is greater than the capillary pressure and surface tension in the membrane pores, the liquid can be forced out of the membrane pores.
PTFE bubble point film composite material is a polytetrafluoroethylene film that is stretched in both directions. It is a new material that is acid-resistant, alkali-resistant, and resistant to various organic solvents. It is almost insoluble in All solvents.
At the same time, polytetrafluoroethylene is a material that is resistant to high temperatures and has an extremely low coefficient of friction. Therefore, it can be used for lubrication and is also an ideal coating for the inner layer of easy-to-clean woks and water pipes. .
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