Fiber coating for metal and preparation method therefor

Abstract

The present invention discloses a fiber coating for metal. The fiber coating consists of the following raw materials in parts by weight: 10-13 parts of hydroxyethyl cellulose, 600-700 parts of diphenylmethane diisocyanate, 340-370 parts of 2-(perfluoroalkyl)ethanol, 450-490 parts of polyoxytertramethylene glycol, 1-2 parts of 1,4-butylene glycol, 1.3-2 parts of 4-vinylcyclohexane, 90-100 parts of nano silicon dioxide, 16-20 parts of hydrogen-containing silicone oil, 2-3 parts of methanol, 2-5 parts of calcium aluminate, 1-2 parts of ferrous ammonium sulfate, 3-4 parts of sodium potassium silicate, 20-27 parts of phthalate polyester, 7-9 parts of diacetone acrylamide, 4-8 parts of carboxymethyl cellulose, and 0.01-0.02 parts of chloroplatinic acid. According to the present invention, hydroxyethyl cellulose and carboxymethyl cellulose are subjected to blending treatment, so that the compatibility between materials is improved, dispersibility of particles in resin is improved, agglomeration is effectively prevented, and coating surface strength can also be increased.

Description

technical field [0001] The invention relates to the technical field of metal anticorrosion coatings, in particular to a fiber coating for metal and a preparation method thereof. Background technique [0002] Polyurethane has been widely used in dry anti-abrasion and sediment wet anti-abrasion coatings in the fields of mine transportation, concrete mixer lining and other fields due to its excellent fatigue resistance, toughness and abrasion resistance. With the continuous improvement of polyurethane physical properties and construction technology , polyurethane elastic coatings are used more and more frequently in water conservancy projects as anti-abrasion protective coatings for underwater concrete and steel structures, and exhibit good high and low temperature toughness, fatigue resistance and cavitation wear resistance, and have achieved However, there are some limitations. For example, the hydrophilic CH2OH group on the polyurethane chain is easy to absorb water, which l...

AI Technical Summary

Problems solved by technology

[0002] Polyurethane has been widely used in dry anti-abrasion and sediment wet anti-abrasion coatings in the fields of mine transportation, concrete mixer lining and other fields due to its excellent fatigue resistance, toughness and abrasion resistance. With the continuous improvement of polyurethane physical properties and construction technology , polyurethane elastic coatings are used more and more frequently in water conservancy projects as anti-abrasion protective coatings for underwater concrete and steel structures, and exhibit good high and low temperature toughness, fatigue resistance and cavitation wear resistance, and have achieved However, there are some limitations. For example, the hydrophilic CH2OH group on the polyurethane chain is easy to absorb water, which leads to the decline of the water resistance of the polyurethane, and seriously affects the cavitation wear resistance and wear resistance of the polyurethane coating in the water environment. service life;

[0003] At present, the main method to improve the