A new type of epoxy anti-corrosion powder liquid coating performance study

China Coatings Online News News
Zhao Qiuling Xi'an Organic Chemical Plant / Menghui Daqing City Jiuhang Technology Development Co., Ltd.Abstract: Epoxy anti-corrosion powder coating in the field of steel pipe corrosion prevention of a large number of applications and its anti-corrosion quality superior, stable, well recognized, whether steel storage tanks, heterosexual pipe anti-corrosion has been discussed in the industry. How to make the coating can be cured into film without heating at room temperature is a key factor. This paper will introduce a new type of epoxy anti-corrosion powder liquid coating, in specific circumstances to turn the powder coating into a liquid coating, can be sprayed, roll applied anti-corrosion, temperature curing into a film, the effect is the same as static spray anti-corrosion, and energy saving and labor-saving.key words: powder coating liquidization; At room temperature curing; Energy saving; Achieving the same effectthe figure classification number: TQ047.6 Document identification code: A Article number: 1001-828X (2013) 07-0345-01First, overview In order to open up the field of epoxy anti-corrosion powder coatings for metal corrosion, the epoxy anti-corrosion powder coating ideally applied to steel storage tanks and steel pipe shapes of corrosion protection, we have developed a "new epoxy anti-corrosion powder liquid coating." This coating at room temperature, can be sprayed, rolled or brushed method of steel storage tanks, steel pipe shapes for corrosion, normal temperature 20min table dry, 24h cured into a film, cured into a film of anti-corrosion coating with static spraying, heating melting solidified anti-corrosion coating effect, adhesion, impact strength, bending strength than static spray better.II, technical analysis epoxy anti-corrosion powder coating is made from raw material preparation, melt extrusion, colloidal tablets, air-cooled crushing, grinding powder, sieve and a semi-polypolymer powdered substance, only through electrostatic spraying, high temperature melting reaction polymerization, the formation of a larger molecular group, solidified applied to the metal surface, the formation of anti-corrosion layer. However, due to electrostature spraying, high temperature melting time is too short (2 to 3min), curing polymerization is not complete, so that the impact strength of the coating, adhesion, cathode stripping, temperature resistance performance is poor, can not meet the standard requirements. And we developed the "new epoxy anti-corrosion powder liquid coating", is the use of reasonable solvents, powder coating dissolved into a liquid state, and functional additives, so that its semi-polymer molecules live, and then at room temperature can self-react polymerization, curing into a film to form a good anti-corrosion layer. After molecular resuscing, it also promotes the combination of the bio-oxygen bond and metal bond reaction in powder coating, coupled with the normal temperature curing, curing time 24h, the reaction curing is more thorough (unlike electrostatic spray melting curing time is short, the polymerization is small, curing is not complete), thus improving the adhesion, impact resistance and anti-corrosion effect of the powder liquid coating anti-corrosion coating.3. Coating technical performance New epoxy anti-corrosion powder liquid coating technical performance index 4, Conclusion New epoxy anti-corrosion powder liquid coating can be used at room temperature airless spraying or rolling coating, brush coating method Free construction, coating film temperature curing, anti-corrosion coating with powder coating electrostatization spray melting and curing coating effect, its anti-ultraviolet, impact resistance, adhesion, cathode stripping performance is also better than powder coating electrostatization spraying, melting curing coating effect. Saving energy and reducing construction costs is the ideal alternative to liquid anti-corrosion coatings, can also be comparable with fluorocarbon paint, but the price is lower than fluorocarbon paint, is the current metal storage tanks, special-shaped pipes inside and outside the ideal anti-corrosion materials. The surface brightness is good and can also be used for wood decorators. If you add inorderable and efficient antibacterial materials, but also can be used for the ship's external anti-corrosion coating, which not only anti-corrosion effect is good, but also to kill algae and other harmful bacteria, to prevent the growth of algae at the bottom of the ship, reduce the ship's navigational resistance in the water, reduce energy consumption. And after test application in Daqing oil field, anti-corrosion effect is excellent. In summary, the new epoxy anti-corrosion powder liquid coating has many innovation points and advantages, its specific solvent is non-toxic to the human body, is a new energy-saving and consumption-saving products, worthy of widespread application.
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