Preparing method of corrosion-resistance and anti-flash-rust coating

Abstract

The invention belongs to the technical field of coatings, and particularly relates to a preparing method of a corrosion-resistance and anti-flash-rust coating. The preparing method specifically comprises the following steps of 1, weighing raw materials; 2, heating water, adding konjac polysaccharide, fructus sophorae polysaccharide and ziziphora clinopodioides Lam polysaccharide, conducting heat-preservation stirring and heating, adding ferulic acid and hyperin, conducting heat-preservation stirring, and conducting magnetization treatment to obtain an active base liquid; 3, adding styrene-acrylic emulsion and modified rosin resin into the active base liquid for stirring and heating, adding modified nanometer vermiculite, coconut shell active charcoal and dodecyl alcohol ester, and conducting stirring and homogeneity treatment to obtain the corrosion-resistance and anti-flash-rust coating. The formed coating film is compact, neat and smooth, the corrosion resistance of the coating filmis further improved, the coating is firmly connected to a base material in the form of covalent bonds, thus the mechanical strength and adhesion power of the coating are improved, steel products are effectively prevented from being in contact with air and water, thus the anti-rust purpose is achieved, and the coating has efficient water resistance, saline water resistance and anti-flash-rust performance and is environmentally friendly and free of pollution.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a method for preparing a corrosion-resistant and anti-flash rust coating. Background technique [0002] The main component of rust is Fe 2 o 3 When the surface of steel corrodes and generates rust, it can not only prevent the rust of the steel, but also further aggravate the rust on the surface of the steel, because the loose and porous rust not only cannot prevent the contact between the steel product and air and water, but also absorbs air and water On the surface of steel products, the rust of steel products is further aggravated; in addition, rust is not as hard as iron, it is easy to fall off due to collision or vibration, and it has no protective effect at all, so the anti-rust protection of steel surfaces is important to protect the quality of steel products The two main factors of steel rusting: one is oxygen and the other is water, so the easiest way to prevent steel ...

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Problems solved by technology

[0003] Alkyd series anti-rust paint is widely used in steel structure and industrial anti-rust fields because of its low price and certain anti-rust performance. However, the original paint of alkyd series anti-rust paint contains at least 30% organic solvents. The proportion of organic solvents in spraying construction can reach 50%~60%, or even higher, which has caused great pollution to the environment; look for water-based antirust paints with low prices and performances that can reach the performance of alkyd antirust paints to reduce volatility Organic solvents pollute the atmosphere, and the production of environmentally friendly water-based paints is an important task in the paint industry; the price of antirust paints made of ordinary styrene-acrylic emulsions is roughly the same as that of alkyd antirust paints, and has pollution Low, aging resistance, easy film formation at room temperature and easy construction, etc., have been widely used in coatings, but the performance is not as good as the antirust performance of alkyd antirust paint, and the compactness of styrene-acrylic emulsion is poor, water vapor The transmission rate of oxygen and oxygen is high, and there are many opportunities to form a large corrosion current, which intensifies the flash corrosion of steel substrates; therefore, it is urgent to invent a corrosion-resistant and anti-flash rust coating to promote the further development of the coating industry

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