A kind of epoxy straw tar anticorrosion coating

Abstract

The invention relates to an epoxy straw tar anticorrosive paint, and effectively solves the problem that the appearance of the substrate can be influenced by nonuniform painting, lusterless surface, high abrasion tendency, brittle and inelastic paint film, poor adhesive force and high shedding tendency. The anticorrosive paint is prepared from a component A and a component B in a weight ratio of 1:(1-1.5). The component A is composed of the following ingredients in parts by weight: 80-100 parts of epoxy resin, 1-2 parts of rheological agent, 3.5-5 parts of coupling agent, 60-90 parts of filler and 35-60 parts of solvent. The component B is composed of the following ingredients in parts by weight: 15-30 parts of curing agent, 90-130 parts of straw tar, 3-4 parts of emulsifier, 7-9 parts of film-forming assistant, 4-6 parts of quartz powder and 30-50 parts of solvent. The method comprises the following steps: putting all the ingredients of the component A in a reactor, heating at 80 DEG C under reflux while stirring for 0.5 hour, and pulverizing; and putting all the ingredients of the component B in a reactor, heating at 120 DEG C under reflux while stirring for 1 hour, and pulverizing. The epoxy straw tar anticorrosive paint has the advantage of abundant raw materials and is easy for production and preparation. The method enhances the low-temperature corrosion resistance of the paint, prolongs the adaptation period, fully utilizes the wastes of agriculture and forestry, reduces the waste of resources, saves the cost and reduces the environmental pollution.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an epoxy straw tar anticorrosion coating. Background technique [0002] Although the composition of the straw tar produced by the pyrolysis of agricultural and forestry waste is complex, the main substance is phenolic hydroxyl compounds, which can be used to prepare phenolic resins. Therefore, the straw tar itself can be used as an anti-corrosion material for anti-corrosion in water conservancy, chemical industry, shipbuilding and transportation industries. , can effectively prevent seawater, river water and microorganisms from corroding the base material, but the unprocessed straw tar as an anti-corrosion coating has an unsatisfactory anti-corrosion effect, with uneven coating, dull surface, easy to wear, and brittle paint film Inelastic, poor adhesion, easy to fall off and affect the appearance of the substrate. Therefore, improvement and innovation on anti-corrosion coatings ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide an epoxy straw tar anti-corrosion coating, which can effectively solve the problems of uneven coating, dull surface, easy wear, and brittle and inelastic paint film. , poor adhesion, easy to fall off and affect the appearance of the substrate