Anti-corrosive paint for steel materials of ships and preparation method of anti-corrosive paint

Abstract

The invention discloses anti-corrosive paint for steel materials of ships and a preparation method of the anti-corrosive paint. The anti-corrosive paint comprises the following raw materials by weight: 25 to 30 parts of a polyester emulsion, 8 to 10 parts of carboxyl butadiene-arylonitrile rubber, 6 to 8 parts of polyvinyl alcohol, 2 to 3 parts of a silane coupling agent KH570, 12 to 15 parts of a styrene-acrylic emulsion, 1.2 to 1.5 parts of quartz sand, 0.3 to 0.5 part of methyl-ethyl ketone curing agent, 2 to 4 parts of polyepoxysuccinic acid, 1.5 to 1.8 parts of a cobalt iso-octoate accelerating agent, 3 to 5 parts of preservative, 5 to 7 parts of caprolactam, 0.8 to 1.2 parts of a penetrating agent, and 7 to 9 parts of poly-amide fiber. The anti-corrosive paint has the advantages that the sediment generation possibilities in the preparation process and a use process are low; the steel materials can be provided from corrosion effectively; the spray coating index of the anti-corrosive paint on the surfaces of the steel materials is high; the permeation and the adhesive strength are high; the welding resistance coefficient is 90 percent or higher; the wear resistance and the anti-scuffing property are good; the surface hardness of a co-diffusion layer is equal to or larger than 330 Hv; the corrosion resistance is high; steel adopting the paint can exist 720 hours or longer without red rust in a neutral salt mist test; the anti-corrosive paint is suitable for surface treatment of general steel products, convenient and practical to use, and suitable for popularization and application.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes how it works by adding certain chemicals called polysiloxanes that make up the coatings used in this type of paint. These materials have lower prices compared to traditional paints while still being effective at protecting metal surfaces against damage caused during storage or usage. They also provide long lasting protection without requiring maintenance after they've been applied over time. Additionally, these coatings offer excellent durability even when exposed to harsh environments such as sea water.

Problems solved by technology

This patented technical issue addressed in the patents relates to developing a special type of antirust coating on ship steels (SS) without compromised performance over longer periods of use. Current methods involve adding expensive aluminum sheets onto these surfaces, but they may also lead to reduced lifespan issues associated with corrosive attack.