Preparation method of waterborne alkyd enamel

Abstract

The invention discloses a preparation method of waterborne alkyd enamel. The preparation method comprises the following components in percentage by mass: 45%-55% of waterborne alkyd resin, 10%-15% of rutile type titanium dioxide, 0.3%-1% of carbon black, 10%-15% of precipitated barium sulphate, 0.2%-0.5% of a waterborne dispersing agent, 0.1%-0.2% of a waterborne antifoaming agent, 0.1%-0.2% of a waterborne foam inhibitor, 1%-2% of hydrated magnesium silicate, 0.8%-1.2% of waterborne drier, 0.2%-0.4% of a waterborne anti-skinning agent, 0.5%-1% of a water-based thickener, 2%-4% of a neutralizer, 2%-4% of a hydrotropy agent, 2%-4% of a coalescing agent, 0.1%-0.2% of a waterborne flatting agent and 8%-9.6% of deionized water. The method comprises the following technological steps: stirring the waterborne alkyd resin evenly, and testing and adjusting the pH value; diluting the foam inhibitor with the deionized water, then adding to a production cylinder, stirring, and adding the rutile type titanium dioxide and the like, dispersing and then grinding; adding a compound drier and the like, and stirring; adjusting the viscosity with the deionized water; and adjusting the pH value of the product with the neutralizer. The waterborne alkyd enamel has the advantages of being high in drying rate, high in glossiness, excellent in weather fastness, excellent in salt water resistance, and free of a blistering or rusting phenomenon after being soaked in a 3% sodium chloride solution for 480 hours.

Description

technical field [0001] The invention relates to the field of lacquer making, in particular to a preparation method of water-based alkyd enamel. Background technique [0002] With people's increasing awareness of environmental protection, the requirements for environmental protection of coating products are also getting stronger and stronger. Now 80% of steel structure manufacturers in the market still use traditional oily alkyd enamel, which causes harm to the environment and human body. caused great damage. The invention provides a pure water-based alkyd enamel, which completely meets the standard of the oil-based alkyd enamel in terms of drying speed, gloss and weather resistance. Suitable for steel surface protection products such as steel structures, bridges, guardrails, vehicles, pipelines, doors and windows. Contents of the invention [0003] The invention proposes a method for preparing water-based alkyd enamel. The prepared product has the characteristics of fast...

AI Technical Summary

Problems solved by technology

[0002] With people's increasing awareness of environmental protection, the requirements for environmental protection of coating products are also getting stronger and strong

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