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Chemical properties of PTFE high permeability membrane

Jan 16, 2021

PTFE means polytetrafluoroethylene. This kind of plastic has high stability and high temperature resistance, so the properties of PTFE high permeability film are better than normal plastic film.


PTFE is milky white waxy translucent material, lighter than water, odorless, tasteless, non-toxic, soft, rigid LDPE; the permeability decreases with the increase of density, and HDPE has higher permeability to N2, O2, CO2 than other films, but relatively less permeability to water vapor; the low temperature resistance of PTFE products is better than that of general plastics, with brittle temperature of - 70 ℃, but not high temperature resistance; HDPE has better strength and hardness, but poor impact strength, elasticity and transparency, while LDPE has the opposite.


PTFE high permeability membrane


PTFE is resistant to common acids, bases and salts at room temperature, but not to concentrated H2SO4 and HNO3. It is resistant to most organic solvents below 60 ℃ and swells in aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons.


The above is the introduction of the chemical properties of PTFE high permeability membrane. Do you understand? If you want to know more about PTFE clothing membrane, PTFE high permeability membrane and air purification membrane, you can continue to pay attention to the official website of Jinhua Tianling air purification membrane Co., Ltd.