Aqueous acrylic flame retardant coating, preparation method thereof and construction process

Abstract

The invention discloses an aqueous acrylic flame retardant coating. The coating comprises the following components in parts by mass: 30-50 parts of aqueous acrylic acid, 5-10 parts of ammonium polyphosphate, 10-20 parts of asbestos powder, 5-10 parts of melamine, 8-15 parts of coated mica powder, 5 to 8 parts of temperature resistant pigment, and 30 to 40 parts of deionized water. The preparationmethod comprises the following steps: S1: weighing aqueous acrylic acid, ammonium polyphosphate, asbestos powder, melamine, coated mica powder and temperature-resistant pigment to obtain a preliminarymixture; S2: grinding the preliminary mixture, adding deionized water to mix and stir the materials, and finally filtering the material with a 200-mesh screen; and S3: packaging. The construction process comprises the following steps: A1: pretreatment of a part to-be-painted; A2: preparation of the aqueous acrylic flame retardant coating, and applying the primary coating to the part to-be-painted; and A3: performing the secondary coating, wherein a coating thickness in the primary coating and the secondary coating is 80 to 120 microns.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based acrylic flame-retardant coating, a preparation method and a construction process. Background technique [0002] Judging from the structural system and characteristics of the relatively complete ancient buildings preserved in my country, the frame structure system of the wooden frame structure is an important feature of the formation of ancient Chinese architectural structures. Its main structural features are wooden columns and beams as the main supporting components, which bear the load from the roof structure and transmit it to the columns through the beam frame, while the walls only bear their own loads, playing the role of enclosure and separation, quite Infill walls in existing frame structures. At present, the surface of ancient wooden structures in my country is mostly decorated with paint, which cannot be well protected and fireproof. Once a fire occurs, i...

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Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the present invention provides a water-based acrylic flame-retardant coating, a preparation method and a construction process to solve the technical problems that the existing coating cannot isolate heat sources, is flammable, and is not heat-resistant