Fluorocarbon elastic waterproof paint for metal color steel roofing and preparation method thereof

Abstract

The invention provides a fluorocarbon elastic waterproof paint for a metal color steel roofing and a preparation method thereof. The paint is prepared from the following raw materials by weight: in terms of 100 parts by mass, 5.0 to 20.0 parts of water, 0.5 to 1.5 parts of a dispersant, 0.1 to 0.5 part of a wetting agent, 0.1 to 0.8 part of an antifoaming agent, 0.1 to 0.3 part of an antiseptic, 0.1 to 0.8 part of a mildew inhibitor, 0.05 to 0.15 part of a pH value conditioning agent, 0.1 to 0.8 part of a thickening agent, 0.5 to 2.0 parts of a coupling agent, 0.5 to 1.5 parts of a silane cross-linking type adhesion promoter, 30.0 to 60.0 parts of an elemental fluorine-modified elastic acrylic acid emulsion, 10.0 to 30.0 parts of a filling material and 5.0 to 30.0 parts of a reflective heat-insulation material. The waterproof paint provided by the invention has long-lasting weatherability, excellent stain resistance and good reflective heat insulation effect and adhesion, and can be independently used as a waterproof paint for the metal color steel roofing.

Description

technical field [0001] The invention relates to a roof waterproof coating and a preparation method thereof, in particular to a metal color steel roof fluorocarbon elastic waterproof coating and a preparation method thereof. Background technique [0002] Metal color steel roof coatings mainly include waterproof coatings and reflective heat insulation coatings, all of which are made of pure acrylic emulsion, blended with acrylic emulsion and silicone emulsion, or neoprene latex as a film-forming material. Although it has a certain waterproof effect, UV resistance and Anti-aging, but its water resistance, aging resistance and stain resistance have limitations, and it cannot achieve the long-term reflective heat insulation effect. At the same time, the filler used has a great influence on the elasticity of the coating, which cannot meet the requirement that the metal roof waterproof coating must have certain elasticity. For example CN03106524.4, CN201410071894.3, CN201210171655...

AI Technical Summary

Problems solved by technology

[0003] At present, metal color steel roofs have a certain requirement for their waterproof coatings to have a certain reflection and heat insulation effect, and fluorocarbon elastic emulsions are used as film-forming substances mainly for exterior wall facades or exterior wall insulation finishes. Applied to roof waterproof coating, because it is difficult to have good adhesion on special substrates such as ceramic tile glaze, glass surface or color steel roof, especially metal color steel roof with high adhesion requirements, it cannot be used as metal color steel roof Independent use of waterproof coating

[0004] Therefore, it is necessary to study a new metal color steel roof waterproof coating that can solve the limitations of aging resistance and stain resistance in the existing acrylic emulsion waterproof coatings, so as to achieve long-term weather resistance and reflective heat insulation effects. The promotion and application of roof waterproof coating is of great significance

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