High-solid-content weather-proof bottom-face integrated anticorrosive paint containing polyaspartic acid ester

Abstract

The invention belongs to the field of painting preparation and particularly relates to a bottom-face integrated anticorrosive paint obtained through modification by using the polyaspartic acid ester as the base. The anticorrosive paint is prepared from, by mass, 20-35% of polyaspartic acid ester, 10-18% of modified resin, 0.2-0.8% of a defoaming agent, 0.3-0.5% of a leveling agent, 0.5-1.5% of ultraviolet absorber, 32-42% of pigment, 10-25% of pigment, 5-10% of a solvent, 20-29% of a curing agent and 1-5% of a flatting agent. The paint has the excellent weather resistance, gloss retention, color retention and weather resistance and high solid content, meets the requirement for environmental protection, does not need a primer or intermediate coat, can achieve bottom-face integration, the thickness of the film formed at a time can reach 150-375 micrometers, and the construction cost is lowered.

Description

Technical field [0001] The invention belongs to the field of paint preparation, and particularly relates to a bottom-surface anticorrosive paint obtained by modification based on polyaspartate. Background technique [0002] According to the National Bureau of Statistics, in 2014, the total output of coatings by enterprises above designated size in my country was 16.48 million tons. Ranked first in the world, solvent-based coatings account for 50%. At present, most domestic paint companies produce low-solid solvent-based paints, with organic volatile VOC content as high as 50% to 60%. The total annual VOC emissions are over 4.5 million tons. In the face of persistent smog that has appeared in many places in my country in recent years, the state has intensively issued a series of environmental protection policies and regulations, and formulated environmental management and governance policies and measures. On March 1, 2015, the State Administration of Taxation imposed an additio...

AI Technical Summary

Problems solved by technology

Epoxy bottom-surface combined coating, chlorinated rubber bottom-surface combined coating, polyurethane bottom-surface combined coating, these varieties solve the "survival" of one-time coating of coating enterprises, reduce waste, reduce construction costs, and the physical and mechanical properties of the paint film are good , acid, alkali, salt chemical substances, weather resistance, but the overall performance is not very ideal, there are still some shortcomings such as low non-volatile content of the coating, weather resistance, abrasion resistance, wear resistance and weather resistance; and due to the high solid content of the coating, it is also Adding a certain amount of fillers will lead to poor storage stability of the coating and the problem of easy precipitation

Images