Two-coating and one-baking novel energy-saving powder coating capable of replacing baking varnish

Abstract

The invention provides a two-coating and one-baking novel energy-saving powder coating capable of replacing baking varnish. A processing method of the powder coating comprises the following steps: 1,preparing an outer layer coating: adding 35-55% of film-forming resin, ultrafine powdery graphite, a curing agent, 10-30% of a filler and 1-5% of assistants into a container, performing sufficient mixing, carrying out melting high-pressure extrusion after the mixing is finished, tabletting the extruded raw materials until the pressed tablets are uniform in size, crushing the tablets by using a crusher, and grinding the obtained powder after the crushing is finished; and 2, preparing an inner layer coating: adding 35-55% of the film-forming resin, the ultrafine powdery graphite, the curing agent, the pigment, nano-copper powder, 10-30% of the filler and 1-5% of the assistants into the container, performing sufficient mixing, carrying out melt high-pressure extrusion after the mixing is finished, tabletting the extruded raw materials until the pressed tablets are uniform in size, crushing the tablets by using the crusher, and grinding the powder after the crushing is finished. The two-coating and one-baking novel energy-saving powder coating has the advantages of increase of the construction speed, and reduction of environmental pollution.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a novel energy-saving powder coating with two coatings and one baking instead of baking varnish. Background technique [0002] The current domestic paint has the problem that the solvent will release toxic and harmful gases to the atmosphere during use, which will cause a great price to the environment. At the same time, the paint will also cause damage to the body of the construction personnel during use, and this damage is Long-term and life-long, while paint is still flammable and explosive, there are certain dangers in the process of transportation and storage, so the painting of paint is not only low in production efficiency, but also can not be recycled. [0003] Nowadays, many manufacturers are looking for ways to reduce the VOC of their products, so some special coatings use liquid coatings. Therefore, the application of powder coatings is limited due to its own problems, such as ...

AI Technical Summary

Problems solved by technology

[0002] The current domestic paint has the problem that the solvent will release toxic and harmful gases to the atmosphere during use, which will cause a great price to the environment. At the same time, the paint will also cause damage to the body of the construction personnel during use, and this damage is Long-term and life-long, at the same time, paint is still flammable and explosive, and there are certain dangers in the process of transportation and storage, so the painting of paint is not only low in production efficiency, but also can not be recycled.

[0003] Nowadays, many manufacturers are looking for ways to reduce the VOC of their products, so some special coatings use liquid coatings. Therefore, the application of powder coatings is limited due to its own problems, such as smoothness and difficulty in changing the color of the paint booth. , and powder coatings are all one-time spraying, which cannot completely replace paint in terms of performance and effect