Main properties and uses of acrylic coatings

2022-04-05   Pageview:104

Acrylic paint raw materials are produced from petrochemical industry, with low cost and very rich resource reserves. In the development process of acrylic coatings, in order to improve performance and reduce production costs, it is necessary to use olefin monomer tools such as acrylamide and styrene. The characteristics of different copolymers are different, and it is necessary to identify different types of coatings according to the specific requirements of the product. type.

Main properties of acrylic coatings

The performance of acrylic coatings is concentrated in the following aspects:

First, it has a very good luster and can be made into water-white varnish or pure white white enamel;

Second, it has very good light resistance, it will not turn yellow or decompose under ultraviolet radiation, and it can maintain the original color for a long time;

Third, it has good heat resistance and can be used as a neutral coating, mixed with aluminum powder and copper powder, etc., with the same color as gold and silver, acid and alkali corrosion resistance, and grease resistance;

Fourth, it can be stored for a long time without deterioration.

Main uses of acrylic coatings

Because of the good performance of acrylic paint, it is currently widely used in automotive decoration, home appliances, machinery, instrumentation, construction, leather and other fields, and it belongs to a new type of high-quality paint. It can be divided into three different types: solvent-based acrylate coatings, water-based acrylate coatings, and solvent-free acrylate coatings.

Solvent-borne acrylic coatings are divided into two categories, thermoplastic and thermoset. Thermoplastic acrylate coatings are more suitable for industrial applications, such as building exterior wall spraying, automotive refinishing, etc. In order to achieve effective control of environmental pollution problems, non-photoactive solvents can be used. Thermosetting acrylate coatings include hydroxy acrylate coatings, epoxy acrylate coatings, etc. The curing agent is amino resin, which can be used in household appliances, automotive topcoats, etc., and polyisocyanate is selected as the curing device, which can be used in automotive topcoats, architectural For exterior wall coating, etc., polyamine or polyacid is selected as curing agent, which can be used in can spraying, etc., epoxy resin is selected as curing device, can be used in can spraying, etc., melamine resin is selected as curing agent, which can be used in bottom, Among the middle-layer coatings, it also has a very good application effect in furniture metal coatings.

Water-based acrylic paint is divided into thermoplastic acrylic latex paint and thermosetting acrylic latex paint. Thermoplastic acrylic latex paint is mainly used in building exterior paint, water-based road marking paint, metal anti-corrosion coating, etc. Thermosetting acrylic latex paint has Emulsion type, water-dilutable and aqueous solution type, etc. Emulsion type is used in road marking paint, building interior and exterior wall coatings, etc. Water-dilutable is mainly used in automotive electrophoretic primer, aluminum door and window frames, etc. Aqueous solution is mainly used in car bottom Paint, household parts coating, etc.

Solvent-free acrylate coatings mainly refer to thermosetting UV-curable coatings and thermosetting acrylate powder coatings. UV-curable coatings are used in optical fiber coatings, wood coatings, plastic coatings, etc.; acrylate powder coatings are used in guardrail coatings. , aluminum wheel coatings, etc., have now begun to be applied in the fields of automotive varnishes.

Waterborne Acrylic Paint

The technology of water-based paint started relatively late. water based wax in paint coating At present, its technology has gradually developed and matured. It has the characteristics of environmental protection and energy saving. It has gradually developed into a major development direction of modern paint. At present, its varieties, functions and uses are becoming more and more perfect. Among the currently developed water-based coatings, in terms of curing temperature, there are latex paints abroad that can cure at 2°C. In terms of application scope, architectural coatings are the most widely used, and water-based polyurethane coatings have been successfully developed. The successful development of acrylate emulsion has laid a good foundation for the realization of water-based coatings. In the actual application process, the acrylate emulsion has the characteristics of good performance and no pollution. At the same time, it can be configured as a coating with excellent construction performance, and the safety of use can be effectively guaranteed. Water-based acrylates are relatively simple in composition, and currently it is difficult to meet the actual needs of high-performance audio-visual fields. Using epoxy resin to modify acrylic resin can obtain water-based anti-corrosion and anti-rust coatings with good performance, and using silicone modified acrylic phenol can also obtain water-based architectural coatings with excellent performance.

Acrylic coatings have excellent performance in practical applications and are widely used in automotive decoration, home appliances, machinery, instrumentation, construction, leather and other fields. , solvent-free acrylate coatings and other different types, in the actual use process of acrylate coatings, different curing agents can be added in combination with actual needs to make them have different properties and better meet the requirements of use.

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