A self-blocking fuel alcohol polyether-2 phosphate modified water-based acrylic anticorrosion resin and its preparation method

Abstract

The invention relates to a self-blocking oil polyether-2 phosphate modified water-based acrylic anticorrosion resin and a preparation method thereof. In parts by weight, the components are: 6.0-15.0 parts of oleyl polyether-2 phosphate, 5.0-9.0 parts of crosslinking monomer, 0.6-2.0 parts of benzoyl peroxide, 6.0-12.0 parts of propyl polyoxyethylene epoxy ether, 4.0-7.0 parts of acrylic acid, 65.0-130.0 parts of acrylate hard monomer, acrylic acid 10.0-30.0 parts of ester soft monomer, 2.0-5.0 parts of silane coupling agent, 3.0-8.0 parts of allyl glycidyl ether, 30.0-50.0 parts of co-solvent, 4.0-12.0 parts of neutralizing agent, 100.0-200.0 parts of deionized water part; the self-blocking fuel alcohol polyether-2 phosphate modified water-based acrylic anticorrosion resin prepared by the present invention has good flexibility, artificial aging resistance, acid and alkali resistance, salt spray resistance, corrosion resistance, A series of properties such as flame retardancy, when preparing flame-retardant coatings and anti-corrosion coatings, no additional flame retardants and anti-corrosion agents are required; it can be formulated into one-component and two-component water-based coatings.

Description

technical field [0001] The invention relates to a modified water-based acrylic resin, in particular to a self-blocking fuel alcohol polyether-2 phosphate modified water-based acrylic anticorrosive resin and a preparation method thereof, belonging to the technical field of synthetic water-based resins. Background technique [0002] Over the years, my country's acrylic resin industry has developed rapidly, and product output has continued to expand. The national industrial policy encourages the acrylic resin industry to develop in the direction of high-tech products, and domestic enterprises have gradually increased their investment in new investment projects. Investors are paying more and more attention to the acrylic resin industry, which has increased the demand for research on the development of the acrylic resin industry. [0003] Acrylic emulsion has good color retention, gloss retention, weather resistance, alkali resistance and other advantages. Moreover, there are a ...

AI Technical Summary

Problems solved by technology

The preparation method of the phosphate-modified acrylate emulsion is: (1) primary polymerization: 10-20 parts of methyl methacrylate, 2-3 parts of methacrylic acid, 1-2 parts of acrylonitrile and 10-15 parts After pre-emulsification of styrene, carry out an emulsion polymerization, and adjust the pH value to obtain a first-time polymerization emulsion; (2) Secondary polymerization: pre-emulsify 30-45 parts of methacrylate hydroxyester, and 5-10 parts of phosphate mono The body is added to the primary polymerization emulsion together, and the secondary emulsion polymerization is carried out to obtain a phosphate-modified acrylate emulsion with a core-shell structure. The phosphate monomer is trichloroethyl phosphate, trichloropropyl phosphate or orthophosphate Ethyl ester, this invention adds halogen elements, which are easy to release poisonous gas when heated, and are easy to cause harm to the human body; Chinese patent CN108250347A discloses a phosphate-modified acrylic core-shell emulsion resistant to salt spray, and the shell layer contains long-chain alkanes Base-acrylate phosphate diester functional group; its components include acrylate soft and hard monomers, acrylic acid, long-chain alkyl-acrylate phosphate diester, neutralizing agent, initiator, emulsifier and water. Alkyl-acrylate phosphate diesters are not flexible enough to adapt to special bending requirements; Chinese patent CN108299587A discloses an acrylic modified emulsion for water-based anti-corrosion coating resins, and its formula is as follows according to the weight ratio: Monomer: Styrene 10 to 31 parts, 1 to 5 parts of monobutyl itaconate, 1 to 5 parts of butyl acrylate, 5 to 15 parts of isooctyl acrylate, 1 to 5 parts of vinyl tertiary carbonate, methacrylic acid 0.1 to 1 part, 0.5 to 2 parts of methylol acrylamide, 60 to 65 parts of water; additives: 0.5 to 5 parts of isomeric decanol phosphate, 0.01 to 0.1 part of n-dodecyl mercaptan, Nonylphenol polyoxyethylene ether ammonium sulfate 0.01-0.1 part, ammonium persulfate 0.01-0.1 part, tert-butyl hydroperoxide 0.01-0.1 part, carving white powder 0.01-0.1 part, N methyldiethanolamine 0.1-1 part, 0.1-1 part of preservative, 0.1-1 part of mineral oil defoamer; after the modified emulsion of the present invention is applied to the coating, the cross-linking speed of the coating is greatly improved, but Its flame retardant and anti-corrosion functions are limited, and the functional groups are easy to fall off and weather