Preparation method and product of ultra-wide-temperature-range high-performance water-based damping paint

Abstract

The invention discloses a preparation method and product of ultra-wide-temperature-range high-performance water-based damping paint. The method comprises the following steps of (1) preparing the following ingredients in parts by weight: 30 to 40 parts of acrylic resin blending emulsion, 10 to 20 parts of deionized water, 0.3 to 0.8 part of antifoaming agents, 0.3 to 0.8 part of dispersing agents,10 to 20 parts of talcum powder being 200 to 1000 meshes, 10 to 30 parts of sericite powder being 100 to 600 meshes and 0.4 to 0.8 part of thickening agents, wherein the acrylic resin blending emulsion is prepared by mixing three kinds of acrylic resin emulsion with the vitrification temperatures being -30 DEG C, 0 DEG C and 30 DEG C according to a certain proportion; (2) stirring the acrylic resin blending emulsion, the deionized water, the antifoaming agents and the dispersing agents for 5 minutes at the rotating speed being 500 rpm; (3) adding talcum powder and sericite powder into a stirring container; performing stirring for 10 minutes at the rotating speed of 1000 rpm; (4) adding a thickening agent into the stirring container; performing stirring for 10 minutes at the rotating speedof 1500 rpm; (5) obtaining the ultra-wide-temperature-range high-performance water-based damping paint. The composite loss factor in the ultra-wide-temperature-range range of -40 to 50 DEG C can be greater than 0.05.

Description

technical field

[0001] The invention relates to a water-based damping paint, in particular to a preparation method and a product of an ultra-wide temperature range high-performance water-based damping paint. Background technique

[0002] At present, the main damping coatings in the industry include traditional polyurethane / polyether constrained layer damping coatings and water-based damping coatings. Most of the former will release VOC and cannot be sprayed on a large scale, and cannot meet the composite loss factor greater than or equal to 0.05 in the wide temperature range of -40°C to 50°C (especially below -10°C), so that it can be used in some industries. Fields such as high-speed rail in extremely cold regions and aerospace are limited; the main defect of the latter is that it is difficult to achieve high-performance damping in a wide temperature range. Contents of the invention

[0003] In view of the above deficiencies, the purpose of the present invention is to pr...