Cathode electrophoresis paint with high outdoor weather resistance and preparation method thereof

Abstract

The invention discloses a cathode electrophoresis paint with high outdoor weather resistance. The cathode electrophoresis paint is characterized by being prepared from the following raw materials in parts by weight: 30-35 parts of epoxy resins, 18-26 parts of methylated amino resins, 4-7 parts of dimethylbenzylamine, 5-8 parts of maleic anhydride, 12-15 parts of isobutyl alcohol, 7-9 parts of butyl acrylate, 8-11 parts of ethoxyl metacrylic acid ester phosphate, 0.3-0.7 part of sodium antimonite, 1-2 parts of nano aluminum nitride, 13-17 parts of carbon black, 3-6 parts of graphite particles, 2-4 parts of expanded perlite, 2.1-3.5 parts of carboxymethylcellulose, 6-9 parts of ethylene propylene rubbers, 1.2-2.5 parts of silane coupling agents KH560, 12-16 parts of auxiliaries, 16-20 parts of ethylene glycol monoethyl ether acetate, 8-11 parts of propylene glycol monomethyl ether and 55-65 parts of deionized water. The cathode electrophoresis paint is scientific and reasonable in proportioning; epoxy resins and methylated amino resins are subjected to graft modification and are added into the raw materials, and other effective components are used at the same time, so that the prepared cathode electrophoresis paint has the advantages of high weather resistance, high coating luster, high modification property, security, environmental friendliness and the like; by utilizing the prepared coated object, the high weather resistance can be maintained under a poor outdoor environment, so that a higher requirement on coating performance can be met.

Description

technical field [0001] The invention relates to an electrophoretic paint, in particular to a cathodic electrophoretic paint with good outdoor weather resistance and a preparation method thereof. Background technique [0002] Electrophoretic coatings and coating methods have been applied industrially since the 1960s. The use of electrophoretic coatings can operate in a fully closed cycle system, and the utilization rate of coatings can reach about 95% compared with conventional spraying. Electrophoretic coatings can be divided into anodic electrophoretic coatings and cathodic electrophoretic coatings according to the electrodes of the coated workpieces. At present, cathodic electrophoretic coatings are the most widely used, which use water-soluble or water-dispersible ionic polymers as film-forming materials, and the coated workpieces are used as cathodes. , a new type of low-pollution, energy-saving, resource-saving, protective and anti-corrosion coating applied by electrode...

AI Technical Summary

Problems solved by technology

[0003] With the continuous development and progress of electrophoretic coating technology, people have put forward higher requirements for the performance of the coating, while the existing cathodic electrophoretic coating has a single function, poor throwing power, high curing temperature, and poor fire and flame retardant effect. , weak noise reduction function, low antibacterial decoration effect and other defects