A kind of water-based UV high-volume high-transparency primer and its preparation method and application

Abstract

The invention relates to a water-based UV clear primer and a preparation method and application thereof. The clear primer includes the following components by weight: 70-90 parts of water-based UV emulsion, 0.4-1 part of defoamer, 0.3-0.8 part of wetting agent, 1-3 parts of water-based photoinitiator, and 0.2 parts of thickener. ~1 part, 1~5 parts of film-forming aid; pH value is 7~9; Wherein, the solid content of described aqueous UV emulsion is not less than 50%; Described aqueous UV emulsion is aliphatic polyurethane acrylate and / or Urethane acrylic emulsion; the solid content of the clear primer is above 40%. After film formation, the clear primer of the present invention has excellent film properties such as excellent transparency, fullness, high filling property, etc., which makes up for the shortcomings of water-based paint film dryness and thinness, and many times of construction, and the paint film is resistant to pollution Excellent chemical resistance and liquid resistance. Direct construction or water as diluent, can be used in various construction methods such as roller coating and spraying, and can be used in the coating of panel furniture, solid wood furniture, floors and other fields.

Description

Technical field[0001]The invention relates to a water-based UV high-fullness and high-permeability primer and a preparation method and application thereof, belonging to the technical field of coatings.Background technique[0002]At present, wood coating clear primers mainly include oil-based UV clear primers and water-based clear primers. Traditional oil-based UV coatings have to add diluents to adjust rheology and viscosity due to the high viscosity of oligomers to improve the performance of the coating film. The added diluents include reactive diluting monomers or cross-linking agents, which have a strong stimulating effect on the eyes, and skin contact can easily cause allergies and affect the health of the operator. Residual monomers have side effects such as plasticization and have permeability, which directly affects the long-term performance of the cured film.[0003]Water-based clear primer has one-component, two-component and water-based UV. The single-component clear primer ha...

AI Technical Summary

Problems solved by technology

The clear primer is combined with high-solid urethane acrylate emulsion, aliphatic urethane acrylate emulsion and other specific components, which greatly improves the filling property of the clear primer coating film and increases the fullness of the coating film and transparency; only two coats of thick coats are needed to achieve the ideal coating effect, which overcomes the shortcomings of traditional water-based UV paints such as multiple coats of thin coats and decreased transparency after recoating

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