Environment-friendly oil paint for steel structure and preparation method of oil paint

Abstract

The invention provides an environment-friendly oil paint for a steel structure and a preparation method of the oil paint. Main materials comprise 800 to 1000 parts of double-bleaching soybean oil, 400 to 500 parts of phthalic anhydride, 150 to 200 parts of pentaerythritol and 1000 to 1300 parts of a diluting agent; main auxiliary materials comprise 50 to 60 parts of resin, 0.4 to 0.5 part of a dispersant, 15 to 20 parts of titanium dioxide and 1 to 1.5 parts of nano dry materials. The preparation method comprises the following steps: adding the double-bleaching soybean oil into a reaction kettle; raising the temperature and adding the pentaerythritol; after cooling, adding the phthalic anhydride and the diluting agent; adding the resin, the dispersant, a flatting agent, the titanium dioxide and the like into a material preparation tank; stirring by using a high-speed stirrer so that the auxiliary materials are uniformly stirred; grinding the mixed main materials until the fineness being 20 microns; putting the mixture into the material preparation tank and adding the nano dry materials. The oil paint is comprehensive in auxiliary materials and reasonable in match and is special antiseptic paint for the steel structure, which is environmentally friendly and has low VOC (Volatile Organic Compounds), small odor and relatively good adaptability; the preparation method is simple and easy to operate and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of paint for steel structure substrates, in particular to an environmentally friendly paint for steel structures and a preparation method thereof. Background technique [0002] my country's steel is mainly used in the three major fields of construction, machinery, and automobiles. As the government's policy on the steel structure industry has changed from restricting the amount of use in the past to encouraging the rational use of steel, the steel structure has replaced a reinforced concrete or brick-concrete structure. The amount of building materials is increasing, and the amount of steel used in construction has accounted for more than 59% of my country's total steel consumption. However, steel is easy to rust in a humid environment, especially in an environment with corrosive media. Every year, about 10%-20% of metals are lost globally due to corrosion. With the increase of steel structure workshops, the ...

AI Technical Summary

Problems solved by technology

Steel structure paints with a large quantity and a wide range have been widely used in the steel structure industry. The existing steel structure paints on the market are quite smelly, dry, low in hardness, and relatively poor in environmental protection. In the current trend, it is urgent to develop a special anti-corrosion paint for steel structures with environmental protection, low VOC, low odor and good applicability

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