Views: 100 Author: Site Editor Publish Time: 2021-08-07 Origin: Site
Poly tetra fluoroethylene is a high molecular polymer prepared by polymerizing tetrafluoroethylene as a monomer. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so it can be used for lubrication and become an ideal coating for easy cleaning of the inner layer of water pipes. In this article, we will explore why PTFE thin film is an ideal material for low friction tape.
The self adhesive PTFE membrane is composed of fluorocarbon molecules. Carbon is basically wrapped by fluorine, which has the greatest negative charge. Electronegativity refers to the possibility of an atom attracting bond pairs or electrons, making it highly non-reactive. Carbon atoms are inaccessible, so their effect on reactivity is negligible.
The low friction coefficient of PTFE membrane is mainly due to the limited intermolecular reaction with the contact material. It is not difficult for the object to slip off the PTFE at all. It is understood that PTFE is the only material with non-stick properties sufficient to resist the van der Waals forces of Gecko setae.
It is very important that the film on the outside of the low friction tape has excellent non-stick properties. Specific performance plays a role in multiple aspects to achieve key performance indicators.
In addition to excellent non-stick properties, high quality PTFE membranes also provide a series of benefits so that they can be used in various applications. The specific benefits are as follows.
PTFE with a symmetric macromolecular structure has an extremely low dielectric constant and high insulation resistance. This feature is very suitable for high-frequency signal cables and standard electronics.
High tensile ePTFE membrane has a low dielectric constant and is an ideal insulation material for cables. Its unique porous structure can reduce the loss and distortion to a very low level, so that the signal can be transmitted at a speed close to the speed of light.
PTFE membrane material has good self-cleaning property, and rainwater can wash away the attachments on the surface. The strong non-wetting PTFE membrane is an ideal flexible sealing material for sealing applications, especially around joints and pipe threads.
PTFE is a polymer compound formed by polymerization of tetrafluoroethylene. It has excellent chemical stability and corrosion resistance. It is one of the best corrosion resistance materials in the world today. Except for molten alkali metals, chlorine trifluoride, chlorine pentafluoride and liquid chlorine, it can withstand all other chemicals. Boiling in water does not change, and is widely used in various occasions that require resistance to acids, alkalis and organic solvents. In addition, the characteristics also include high sealing, high lubrication and non-stick, electrical insulation and good anti-aging ability, excellent temperature resistance.
In addition to the above advantages, PTFE sealing membranes also have high temperature and low temperature resistance. In summary, due to its extremely low reactivity and non-stick characteristics, low-friction PTFE tapes can be specially deployed in harsh environments.