Formula of solvent-free thermal-spraying environment-friendly heavy anti-corrosion coating and preparation method of coating

Abstract

The invention relates to the technical field of preparation of functional coating, and provides a formula of solvent-free thermal-spraying environment-friendly heavy anti-corrosion coating which is quick to cure, energy-saving and environment-friendly, tough and wearable, strong in adhesive force, good in shock resistance and excellent in corrosion resistance and a preparation method of the coating. Each composition of primary lacquer comprises liquid epoxy resin, an active diluent, auxiliaries, an anti-rusting pigment, a pigment, a filler and a thixotropic agent; each composition of a curing agent comprises amine resin, an active diluent, an anti-rusting pigment and a filler. The preparation method of the coating comprises the following steps: (1), preparing primary lacquer, wherein the liquid epoxy resin, the active diluent and the auxiliaries are taken and added into a cylinder for stirring while the anti-rusting pigment, the pigment, the filler and the thixotropic agent are added to be uniformly dispersed, and then grinding and filtering; (2), preparing the curing agent, wherein the amine resin, the active diluent, the thixotropic agent and the filler are added into the cylinder in sequence for dispersing at low speed and then dispersing at high speed and filtering; and (3), carrying out mixed construction on the primary lacquer and the curing agent by adopting a double-component airless sprayer to form a coating layer.

Description

technical field [0001] The invention relates to the technical field of preparation of functional coatings, in particular to a formulation of a solvent-free thermal spraying environmentally friendly heavy-duty anti-corrosion coating and a preparation method thereof. Background technique [0002] As people's requirements for environmental protection become increasingly urgent and strict, the development of solvent-free systems has become a new research direction in the coatings industry. High-performance and low-pollution coatings will replace polluting and traditional solvent-based coatings. Solvent-free environmentally friendly heavy-duty anti-corrosion coatings have no air pollution, are safe and non-toxic, and have excellent anti-corrosion properties. They have obvious advantages in durability, wear resistance, and mechanical strength. Compared with traditional solvent-based coatings, they have edge coverage Good quality, not easy to produce cracks, high construction effic...

AI Technical Summary

Problems solved by technology

The construction process requires the coating to have a long potency period, which limits the drying speed of the coating and cannot meet the construction process with special requirements for quick drying, and the one-time ingredients should not be too much, and must be used up within the specified time, otherwise it will be damaged. Block the rubber hose; clean the equipment after each construction, consume a large amount of solvent, pollute the environment, and cannot carry out continuous construction the next day, and the construction efficiency is low; during construction in winter, the viscosity is high, the coating needs to be preheated before construction, and the pressure should be increased appropriately. Shorten the length of the pipe so that the paint can be sprayed normally

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