A kind of NPA aldehyde-free water-based acrylic emulsion and preparation method thereof

By introducing functional substances such as neighbors of polyminohopenzolic acid and polytic hydroxyl hydroxyl hydroxyl hydroxyl hydroxyl, combined with copper powder catalysis in hydroxyl, and combined with copper powder catalytic, the problem of water -based emulsion adhesion, viscosity, and formaldehyde adsorption ability , Achieve efficient and environmentally friendly coating performance.

CN118599065BActive Publication Date: 2025-01-28SHAN DONG SAN JIA JU HE GAO FEN ZI CAI LIAO YOU XIAN GONG SI
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Patent Information

Application Number
CN202410810749.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2025-01-28
Estimated Expiration
2044-06-21

AI Technical Summary

Technical Problem

The existing aqueous acrylic emulsions have problems such as low adhesion, poor viscosity, low coating density, and inability to efficiently adsorb formaldehyde.

Method used

Poly amino -based aminohopenzoic acid and polycathexyl hydrolytic hydrolaglyglyglygly etch ether, etc., can improve formaldehyde adsorption capacity through the alignment and amino foundation, and catalyze the emulsion through copper powder to improve the weather resistance and Mechanical performance.

Benefits of technology

The good adhesion, viscosity, and coating film denseness of water -based acrylic lotion are realized. At the same time, it has the function of high -efficiency adsorption of formaldehyde, which improves the environmental protection and safety of the product.

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Abstract

The invention discloses an NPA aldehyde-free water-based acrylic emulsion and a preparation method thereof, which belongs to the technical field of water-based coatings and is used to solve the technical problems that the water-based acrylic emulsion prepared in the prior art has poor self-thickening property, poor coating film density, and cannot effectively absorb formaldehyde. In the NPA aldehyde-free water-based acrylic emulsion prepared by the invention, polyamino o-aminobenzoic acid and polyhydroxy phenyl glycidyl ether for absorbing formaldehyde are added. O-aminobenzoic acid (NPA) is chlorinated with chloroacetyl chloride and substituted with ethylenediamine in sequence to obtain polyamino o-aminobenzoic acid; o-aminobenzoic acid is modified with phenyl glycidyl ether to obtain polyhydroxy phenyl glycidyl ether. In addition, the invention compounds acrylic monomers and alkyd resins, and compound functional monomers and crosslinking agents, thereby significantly improving the adhesion, viscosity and coating film density of the prepared NPA aldehyde-free water-based acrylic emulsion.
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Citation Information

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