What is characteristics of the pure PTFE products ?

Fluorine plastic, PTFE largest consumption, most widely used, it is an important fluorine plastic varieties. PTFE is the chemical structure of the polyethylene formed in all of the hydrogen atoms. Its molecular formula is on the map. PTFE molecules in the F atom to cover up CC bond and CF bond can be particularly high stability, in addition to the alkali metals and elemental fluorine it is not any chemical erosion.

PTFE F atoms in the molecule symmetry, CF covalently two elements in combination, the molecule no free electrons, the molecules are neutral. The PTFE has excellent dielectric properties, because the molecular structure of PTFE without grams key, it is a high degree of crystallinity. As the outer layer of PTFE molecular fluorine inert shell, it has outstanding non-stick properties and low coefficient of friction. PTFE has excellent excellent overall performance, high temperature resistance, corrosion resistance, non-stick, self-lubricating, excellent dielectric properties, low coefficient of friction, but it is compared with other plastics, its mechanical properties are not very Well, do not wear, low hardness, easy to cold flow. Can be added to any of the PTFE PTFE to withstand the sintering temperature (360 ℃ -380 ℃) filler, which greatly improved the mechanical properties obtained. While keeping the other excellent performance PTFE. Variety of fillers are glass fibers, metal, metal oxide, graphite, molybdenum disulfide, carbon fiber, polyimide.

1, low friction coefficient, the lowest almost all solids;

2, particularly good temperature resistance;

3, strong chemical stability, hardly any chemicals eroded;

4, the surface is not sticky; 5, excellent electrical insulation properties, in a wide frequency range and the value of the minimum stable dielectric constant

6, excellent aging resistance, without oxygen, ozone, ultraviolet radiation;

7, a very valuable non-flammable;

8, minimal water absorption due PTFE has many excellent properties, is used for national defense and cutting-edge science fields. Since the 1950s began to civilian use, then people have been committed to maintaining its excellent performance under the premise, to overcome its shortcomings, the development of various complex type of PTFE products and PTFE products, while seeking a variety of new processing methods to make Teflon products have a wider applicability to broaden its field of application, and now has become the industry teflon indispensable material.