Anticorrosive coating and preparation method thereof

Abstract

The invention relates to an anticorrosive coating and a preparation method thereof. The anticorrosive coating comprises 20 to 70wt% of allyl heptanoate, 1 to 30wt% of styrene, 1 to 20wt% of polyacrylonitrile / carbon nanotube conductive fibers, 1 to 15wt% of yttrium oxide, 2 to 6wt% of carnauba wax, 3 to 9wt% of talcum powder, 5 to 15wt% of Mn-ZrC composite powder, 0.1 to 10wt% of a dispersant, 0.1 to 6wt% of expanded perlite, 1 to 5wt% of molybdenum disulfide micro-powder and 5 to 30wt% of an organic solvent. The coating provided by the invention does not contain any heavy metal materials, and has salt spray resistance time of more than 4200 hours, hot and humid resistance time of more than 4200 hours and excellent mechanical properties.

Description

technical field [0001] The invention relates to a heavy-duty anti-corrosion coating, in particular to an anti-corrosion coating and a preparation method thereof. Background technique [0002] Heavy-duty anti-corrosion coatings refer to a class of anti-corrosion coatings that can be applied in relatively harsh corrosive environments and have a longer protection period than conventional anti-corrosion coatings. The main application areas of heavy-duty coatings are: ① Emerging marine engineering: offshore facilities, coastal and bay structures, offshore oil platforms; ② Modern transportation: highway guardrails, bridges, boats, containers, trains and railway facilities, automobiles, airports Facilities; ③Energy industry: hydraulic equipment, water tanks, petroleum refining equipment, petroleum storage equipment (oil pipes, oil tanks), power transmission and transformation equipment, nuclear power, coal mines; ④Large industrial enterprises: papermaking equipment, medical equipme...

AI Technical Summary

Problems solved by technology

The coating it provides does not contain any heavy metal materials, and the salt spray resistance time is more than 3000 hours, and the acid and alkali resistance is more than 1000 hours. However, it will be corroded in a short period of time when it is used in marine engineering, and its Poor mechanical properties, not resistant to seawater erosion, sea ice collision, wear and tear when ships are docked, etc.