Environment-friendly type polyaniline shedding-preventing anticorrosion paint

Abstract

Disclosed environment-friendly type polyaniline shedding-preventing anticorrosion paint comprises a composition A and a composition B according to the A-to-B weight ratio of 10:1-20:1. The composition A is prepared from the following compositions: 96 g of liquid epoxy resin E42, 12 g of dibutyl phthalate, 4 g of OP-10, 8 g of isopropanol, 15 g of ammonium persulfate, 3 g of distilled water, 2 g of a camphorsulfonic acid aqueous solution with the concentration of 0.6 mol / L, 16 g of aniline, 1 g of simethicone and 5 g of propylene carbonate. The composition B is composed of the following compositions: 130 g of a liquid aliphatic polyamine, 40 g of polyaniline, 8 g of quartz sand, 8 g of 2-phenoxyethanol, 8 g of talcum powder, and 8 g of rosin glycerol ester. The paint has the advantages of high polyaniline content, good anticorrosion performance, no pollution, low cost and the like.

Description

technical field [0001] The invention relates to an environment-friendly polyaniline anti-shedding and anti-corrosion paint. Background technique [0002] The loss caused by metal corrosion to human beings is staggering. According to statistics, the global annual metal loss due to corrosion is as high as 20%-40% of global metal production, and the economic loss is about 1 trillion US dollars. Practice has proved that the use of coatings for corrosion protection of metals is the most economical, practical and effective method. However, the current commonly used anti-corrosion coatings contain a large amount of organic solvents, which cause great pollution to the environment during the construction process and pose a huge threat to the health of workers; at the same time, commonly used anti-corrosion coatings are also rich in zinc, which not only consumes a lot of zinc resources, but also affects the health of workers. The environment is seriously polluted by heavy metals....

AI Technical Summary

Problems solved by technology

[0004] Although polyaniline has excellent anti-corrosion properties, its mechanical processing properties and compatibility with resins are poor, which limits its use.

The conventional methods for combining polyaniline with resin mainly include: Dissolution method: use a special solvent to dissolve and add to the resin. This method will cause environmental pollution, poor construction conditions, and the expensive solvent will increase the cost sharply; Physical blending method: such as ball milling method, which consumes a lot of energy and time, and its dispersion and stability in the resin are poor, which ultimately affects the performance of polyaniline's anti-corrosion performance; (3) first dissolve polyaniline in the amine curing agent , and then compounded with epoxy resin, this method has insurmountable defects: the content of polyaniline is low, and the content with the best anti-corrosion effect cannot be achieved