The products of PTFE bubble film manufacturers have soft mechanical properties.
Has very low surface energy.
PTFE bubble point film manufacturers have a series of excellent performance properties: high temperature resistance – long-term use temperature of 200~260 degrees, low temperature resistance – still soft at -100 degrees; corrosion resistance – able to withstand aqua regia and aqua regia All organic solvents; weather resistance – the longest aging life among plastics; high lubrication – PTFE bubble point film manufacturer’s PTFE has the smallest friction coefficient among plastics (0.04); non-sticky – has the smallest among solid materials It has excellent surface tension and does not adhere to any substance; it is non-toxic and physiologically inert; it has excellent electrical properties and is an ideal C-class insulation material.
PTFE materials and PTFE bubble film manufacturers are widely used in important sectors such as national defense, atomic energy, petroleum, radio, electric machinery, and chemical industries.
Products: PTFE rods, pipes, plates, turned plates.
Polytetrafluoroethylene is a polymer of tetrafluoroethylene.
The English abbreviation is PTFE.
The structural formula is.
It was discovered in the late 1930s and put into industrial production in the 1940s.
Properties The relative molecular mass of polytetrafluoroethylene is relatively large, ranging from hundreds of thousands to more than 10 million, and generally millions (the degree of polymerization is in the order of 104, while polyethylene is only in 103).
Generally, the crystallinity is 90~95%, and the melting temperature is 327~342℃.
The CF2 units in the polytetrafluoroethylene molecule are arranged in a zigzag shape. Since the radius of the fluorine atom is slightly larger than that of hydrogen, the adjacent CF2 units cannot be completely trans-cross-oriented, but form a spiral Twisting the chain, fluorine atoms cover almost the entire surface of the polymer chain.
This molecular structure explains the various properties of PTFE.
When the temperature is lower than 19°C, a 13/6 helix is formed; at 19°C, a phase change occurs, and the molecules unwind slightly to form a 15/7 helix. </p
