The two fluorine atoms connected to each carbon atom in the produced polytetrafluoroethylene microporous membrane are completely symmetrical. The two atoms of carbon and fluorine are combined with covalent bonds, so there are no free electrons in the molecule. The molecules are neutral and non-polar, making the polymer a completely non-polar polymer, so it does not conduct electricity and has good electrical insulation.
At the same time, there are no hydrophilic groups and photosensitive groups in its macromolecules, so it is moisture-proof and has good weather resistance.
The bond energy of the C-F bond in the polytetrafluoroethylene molecule is high and stable. The van der Waals radius of the fluorine atom is larger than that of the hydrogen atom. The substitution of the fluorine atom causes ptfe to form a spiral structure. The fluorine atom forms a cylindrical shell, mainly because of this layer The inert spiral perfluorinated “shell” combined with the non-polar and crystalline structure of the polymer makes PTFE extremely resistant to chemical corrosion. It is called the “King of Plastics” and is resistant to all strong acids, strong bases, strong oxidants and salts. The class has no effect on PTFE, even under heating conditions, and it is also very stable to boiling aqua regia! PTFE microporous membrane has low surface energy, poor adhesion, and is difficult to bond. However, the interaction with molten alkali metal can be used to generate fluoride on the surface to change the adhesion.
Suzhou New Material Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, production and sales of polytetrafluoroethylene microporous membranes. It strives for excellence in product quality, with its unique ptfe membrane production quality; and can be customized according to user requirements. .
The optimized combination of key technical parameters such as speed ratio, pressure ratio, operating temperature, etc. can realize online control of air permeability, thickness and void ratio according to the ratio and pore-forming medium to meet the different requirements you need. .
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