Characteristics of high chlorinated polyethylene (HCPE)pipeline anticorrosive coatings
We know that the type of anti-corrosion coating is very richand its application field is also very rich.So when it is used in different fields, it is likely to choose the type of coating is not the same. High chlorinated polyethylene pipeline anticorrosive coating is one of a class of high chlorinated polyethylene resin as anticorrosive base material, with modified resin, plasticizer, rust pigments, solvents and additives composed of a single component heavy anticorrosive coating, it is mainly used in the pipeline, usually has these characteristics below.
(1) Good flame retardant and mildew resistance: the chlorine content in the polymer is high, so it has the ability to inhibit the growth of toadstool.
(2) Excellent anti-corrosion properties: the paint film formed by high chlorinated polyethylene resin has very low permeability to water, oxygen and ions (Cl-, SO42-), about 1200 to 1300 of alkyd resin, and 12 of perchloroethylene and chlorosulfonated polyethylene.
(3) Good weather resistance: Because it does not contain double bonds, it is not sensitive to photochemical reaction and oxidative degradation, and the paint film can withstand outdoor atmosphere, ultraviolet light, oxygen and cold and hot changes, and the stability of the paint film is good.
(4) Good compatibility with other resins: a variety of modified resins can be added, such as acrylic resin, aldoketone resin, alkyd resin, etc., to improve the overall performance of the film.
(5) Good construction performance: for a single component paint, can be slightly rusty construction, drying quickly; Film can be formed at low temperature, and the construction is not limited by season and temperature; Good recoating property; Suitable for any steel and cement surface.
(6) Environmental protection: The production of resin does not produce CCl4, reduce pollution, protect the ozone layer.
(7) Poor heat resistance: the paint film is not resistant to high temperature, easy to precipitate hydrogen chloride gas when heated, and the performance deteriorates, so the use temperature is limited (heat resistance temperature generally does not exceed 60 ° C).
The above is the characteristics of high chlorinated polyethylene pipeline anticorrosive coating, although this kind of coating has many excellent performance, but want to ensure that it in industry, agriculture, chemical and urban construction of various underground pipeline anticorrosive effect, need to pay attention to a lot of matters, I hope you can also understand in these aspects, so as to more efficiently complete its follow-up spraying work.