Fire-retardant water-based core-shell type acrylic resin paint and oil paint preparation method

Abstract

The invention discloses a fire-retardant water-based core-shell type acrylic resin paint and oil paint preparation method. The preparation method of fire-retardant water-based core-shell type acrylicresin paint and oil paint comprises the steps that the following raw materials in parts by weight including 50-65 parts of water, 0.4-2.3 parts of emulsifying agent, 0.6-3.0 parts of methacrylic acidand 0.3-0.7 part of crylic acid are added into a reaction container, the temperature is raised to be 45 DEG C, stirring is conducted for 40 minutes, an A monomer is added, and emulsifying time is 30-70 minutes; the temperature is raised to be 65 DEG C, runback water is introduced, after the temperature is raised to be 77 DEG C, heat preservation is conducted, 0.3-0.7 parts by weight of initiator Ais added dropwise, dropping time is 1-3 hours, and after dropping is completed, reaction is carried out for 2-4 hours, so that core layer emulsion is obtained; a B monomer and 0.3-0.4 parts by weightof initiator A are added into the obtained core layer emulsion simultaneously, dropping time is 1-2 hours, after dropping is completed, the temperature is kept at 75-85 DEG C for stirring reaction for 3 hours, then 0.6-1.1 parts by weight of fire-retardant cross-linking agent is added, the temperature is kept at 75-95 DEG C for reaction for 1-3 hours, the temperature is reduced to be 50 DEG C, 0.3 parts by weight of emulsifying agent is added, reaction time is 30 minutes, and ammonium hydroxide is added to adjust the pH value until the pH value is 7-8, so that the fire-retardant waterproof water-based core-shell type acrylic resin paint and oil paint are obtained. The obtained fire-retardant water-based core-shell type acrylic resin paint and oil paint have good fire retardance.

Description

technical field [0001] The invention relates to a preparation method of water-based core-shell type acrylic resin, in particular to a preparation method of flame-retardant water-based core-shell type acrylic resin coating and paint. Background technique [0002] Paint, traditionally called paint in China. The so-called paint is coated on the surface of the object to be protected or decorated, and can form a continuous film firmly attached to the object to be coated, usually based on resin, oil, or emulsion, with or without adding pigments, fillers, adding The corresponding additives are viscous liquids prepared with organic solvents or water. [0003] Since the founding of New China 60 years ago, along with the development of various industries in the national economy, the coating industry as a supporting tool has gradually developed from a very inconspicuous small industry to an indispensable and important industry in various fields of the national economy. After several ...

AI Technical Summary

Problems solved by technology

[0008] But the currently used water-emulsion acrylic resin coatings are increasingly showing its insurmountable shortcomings. [7] , such as in the case of low temperature and high humidity, the drying is slow and it is difficult to form a film; the coating film is easy to mold, easy to pollute, and not wear-resistant; the freeze-thaw stability and mechanical stability are not good; The film compactness, flatness and glossiness are not good, so that the further improvement of the performance of the coating material is limited

[0009] In addition, there are defects such as low flame retardant performance and tedious addition of emulsifiers