The chlorotrifluoroethylene-vinyl ether copolymer is a strictly alternating copolymer ; and the stability of the molecular chain is poor because of the monomer competition rate. The molecular structure of the chlorotrifluoroethylene-vinyl ester copolymer is a non-strict alternating copolymer , and there are continuous vinyl ester copolymerized fragments.

The chain link also reduces its fluorine content to about 25%. Due to the further increase in fluorine content (>35%), tetrafluoroethylene-vinyl ether coatings have better weather resistance, chemical resistance, corrosion resistance and antifouling properties than trifluorotype coatings. Tetrafluoroethylene-vinyl ether has no chlorine atoms in the fluoroolefin chain link, so its effect in the field of corrosion prevention is improved.

Although the fluorine content is only about 1% lower than the chlorotrifluoroethylene-vinyl ether copolymer, its aging resistance is much worse, and it can only resist artificial aging to 2000-3000 hours, which is more than 1000 hours. At present, almost all domestic fluororesins on the market are such fluororesins, and the fluorine content is only 23. This is where the chemical resistance and weather resistance are poor.

Next, I will explain the difference between tetrafluororesin and trifluororesin in normal temperature curing fluorocarbon coatings for steel structure coating.Room temperature curing FC-S202 fluorocarbon coating adopts Zeffle GK-570 tetrafluoroethylene-hydrocarbyl vinyl ether fluorocarbon resin of Daikin Chemical of Japan as the film-forming material, which can ensure the 20-year outdoor service life of the coating.5%.

Nowadays, the most commonly used fluoroolefin-ethylene multi-element copolymer FEVE resin in room temperature curing fluorocarbon coatings has four categories, chlorotrifluoroethylene-vinyl ester multi-element copolymer, trifluorochloroethylene-vinyl ether multi-element copolymer, tetrafluoroethylene Ethylene-vinyl ester multi-element copolymer, tetrafluoroethylene-vinyl ether multi-element copolymer. The second is to ensure the quality of construction.

The vinyl ether fragments are Wholesale PTFE Fusing Belts Manufacturers shielded and surrounded by the more stable chlorotrifluoroethylene fragments, so the aging resistance is good, the fluorine content is about 26%, and the artificial aging resistance exceeds 4000 hours

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