Aqueous acrylic internal-surface repair paint for container and preparation method for aqueous acrylic internal-surface repair paint

Abstract

The invention belongs to the technical field of repair paint and particularly relates to aqueous acrylic internal-surface repair paint for a container and a preparation method for the aqueous acrylicinternal-surface repair paint. The repair paint comprises 10 to 15 parts of water, 0.1-0.3 part of bactericide, 0.03-0.06 part of anti-settling agent, 0.1-0.3 part of pH regulator, 0.8-1.2 parts of antifoamer, 0.3-0.6 part of dispersant, 5.4-11.3 parts of pigments, 20-25 parts of fillers, 45-55 parts of acrylic resin, 2.7-3.8 parts of film forming assistant, 0.1-0.2 part of wetting leveling agent,0.4-0.6 part of flash rust preventing agent and 0.05-0.15 part of thickener. According to the repair paint, an acrylic resin emulsion formed by the water and the acrylic resin can sufficiently disperse various ingredients so as to obtain the uniform-ingredient aqueous acrylic internal-surface repair paint for the container, thus, the consumption of the water is lowered, and the surface drying andsolid drying time is shortened. The aqueous acrylic internal-surface repair paint for the container has the advantages of high drying speed, wet heat resistance, rust prevention and low VOCs emissionand fully meets the needs of container repair paint on open work.

Description

technical field [0001] The invention belongs to the technical field of container repair paint, and in particular relates to a container water-based acrylic inner surface repair paint and a preparation method thereof. Background technique [0002] In 2017, the China Container Association enforced the implementation of water-based container coatings, especially box body paint and chassis paint. However, solvent-based paints are still allowed for primary zinc-rich paint, box marking paint, and refinish paint. [0003] As a kind of container coating, container refinish paint is characterized by open-air construction. If solvent-based refinish paint is used, a large amount of organic solvent emissions will be generated. High VOCs emissions will not only pollute the environment, but also cause harm to the health of construction workers. influences. As local governments restrict the use of solvent-based coatings more and more strictly, and the implementation of environmental prot...

AI Technical Summary

Problems solved by technology

[0003] As a kind of container coating, container refinish paint is characterized by open-air construction. If solvent-based refinish paint is used, a large amount of organic solvent emissions will be generated. High VOCs emissions will not only pollute the environment, but also cause harm to the health of construction workers. influences

As local governments restrict the use of solvent-based coatings more and more strictly, and the implementation of environmental protection policies has become more and more standardized, this has made the repair work of some container factories less and less normal, seriously affecting the repair and acceptance of containers. To a certain extent, it hinders the normal development of the container industry

Due to the different environmental protection policies in different regions, the implementation strength is also different, resulting in the current phenomenon of "repairing boxes in different places"

Although "off-site repairing" circumvents environmental protection policies in some areas, it still does not solve the problem of VOCs emissions

Images