High chlorinated polyethylene coating containing stainless steel flakes and preparation method thereof

Abstract

The invention provides a high chlorinated polyethylene coating containing stainless steel flakes and a preparation method thereof. The coating comprises the following components in portion by mass: 100 portions of high chlorinated polyethylene resin, 10 to 250 portions of modified resin, 10 to 1,400 portions of the stainless steel flakes, 0 to 1,400 portions of pigment and filler, 0.1 to 10.5 portions of antifoaming agent, 0 to 175 portions of coupling agent, 0.3 to 10.5 portions of anti-settling agent, and 100 to 2,000 portions of solvent. The coating has the advantages that the coating has good anticorrosion performance, and can be widely applied to various corrosion environments such as acid, alkali, salt, sea water, soil, chemical industry atmosphere and the like; the protective lifetime of a coating system is prolonged; and the coating can be used as primer, intermediate coating, surface coating or bottom integral coating, can be packed separately, is convenient to construct and quick to dry, and can be constructed at the ambient temperature of between 20 DEG C below zero and 40 DEG C.

Description

technical field [0001] The invention relates to a high-chlorinated polyethylene paint containing stainless steel flakes and a preparation method thereof. The paint can be used as a primer, an intermediate paint, a top paint or a bottom-surface-integrated anticorrosion paint. Background technique [0002] Corrosion, especially the corrosion of metal components and concrete structures, has caused huge losses to the country, accounting for about 3-5% of GDP in that year. Therefore, anti-corrosion work is very important. Among the many anti-corrosion methods, anti-corrosion coatings have always been the most important, most effective, most convenient and most commonly used method. The reason why anti-corrosion coatings can have a better protective effect on structures, facilities, and equipment is because the coating can effectively isolate the corrosive medium from the substrate after film formation, and the corrosive medium cannot reach the substrate within a certain period of...

AI Technical Summary

Problems solved by technology

However, this type of coating has its inherent disadvantages: glass flakes are hard and brittle, and the expansion coefficient is very different from that of film-forming substances, steel and concrete substrates. During the use of cold and hot cycles, the internal stress of the paint film increases, resulting in Cracking and other disadvantages; at the same time, the adhesion between glass flakes and various resins is not good, and it is necessary to add a coupling agent for surface treatment. If the treatment is not good, microscopic voids will be formed along the interface between the scales and the resin. The permeability of the medium is enhanced; in addition, glass flakes have poor alkali resistance, which limits the use of glass flake coatings in alkaline corrosion conditions

Aluminum is an amphoteric metal, not resistant to acids and alkalis, so aluminum alloy flake coatings can only be used in neutral environments

In short, there is still a lack of high-chlorinated polyethylene coatings that can be widely used in various corrosive environments such as acids, alkalis, salts, seawater, soil, and chemical atmospheres, and have long-term anticorrosion properties.