RU2799227C1 - Improved decorative composition - Google Patents

Abstract

FIELD: building finishing materials.

SUBSTANCE: invention is intended for decorative finishing without preliminary preparation of external and internal building surfaces made of concrete, brick, wood, chipboard, plywood, metal, glass, plastic and other surfaces. The textured decorative composition contains, wt.%: an acrylic copolymer dispersion with a minimum film formation temperature, MTP, equal to 0°C 10-13, aqueous dispersion of vinyl acetate 6-7, polyacrylic salts 0.5-1, thickener 0.7-1.8, plasticizer - slowly evaporating hydrophobic glycol ether 0.8-1.5, antiseptic preservative 0.2-0.8, filler 65-74, pigment 0.5-0.9, water - the rest. As a filler, marble chips with a fraction of 0.2-0.5 mm and/or quartz sand are used. The composition of the pigment contains light-reflecting substances or light-accumulative substances.

EFFECT: creation of an elastic composition for a decorative coating with high adhesion.

4 cl, 1 tbl, 3 ex

Description

The invention relates to building finishing materials and is intended for decorative finishing without preliminary preparation of external and internal building surfaces made of concrete, brick, wood, chipboard, plywood, metal, glass, plastic and other surfaces.

Many different technical solutions are known regarding building coatings, such as decorative plaster, paints, etc. for interior and exterior finishing of building surfaces made of different materials, both for prepared surfaces and without preliminary preparation.

Known Waterproofing elastic plaster for indoor and outdoor use (RF patent for the invention No. 2606482, publ.10.04.2016), including, wt.%: acrylic dispersion 20-35; marble chips fraction 0.5-2.5 mm with the necessary granular decorative coating 10-40; water-based paste with a viscosity of 1.5-6 MPa from activated fine micromarble particles 10-25; a paste of activated fine water-based titanium dioxide with a viscosity of 1.5-6 MPa 2-15; natrosol 0.3-1.7; biocide 0.01-0.05; defoamer 0.4-1.6; fragrance 0.13-1.8; solvent for diluting acrylic dispersion 0.1-1.2, while these pastes are obtained by processing aqueous suspensions of fine-grained marble chips and titanium dioxide with a water content of 30 to 80% in an ultrasonic flow type cavitation reactor.

The disadvantages of this technical solution is the complexity in production, low adhesion, low hiding power of the material, lack of elasticity, high labor intensity when applying this material.

Also known is a FOUR-COMPONENT COMPOSITION FOR PROTECTIVE AND DECORATIVE COATING (RF patent No. 2553851, publ. 06/20/2015), containing a two-component primer layer and a finish layer, each of the primer and finish layers contains a base based on epoxy resins and a hardener. The base of the primer layer contains an epoxy oligomer with a molecular weight of not more than 370, a phenoxy resin with an epoxy equivalent mass of at least 3000, epoxidized castor oil, polymethyldiphenylsiloxane, ethylene glycol monoethyl ether, nanoshell titanium dioxide, anhydrous aluminum dioxide and microcalcite, and modified polyamide is used as a primer layer hardener. The base of the finishing layer contains melamine-formaldehyde resin K-421-02, acrylic copolymer BMS-86, phenoxy resin with an epoxy equivalent weight of at least 3000, epoxidized castor oil, polymethyldiphenylsiloxane, ethylene glycol monoethyl ether, glass microspheres finished with vinyltriethoxysilane, anhydrous aluminum dioxide, microcalcite and nanoo barrel muscovite, and a modified polyamide was used as the hardener of the finishing layer, while the ratio of base and hardener in each layer is 10:1.

The disadvantages of the known product is the high toxicity of the material, low adhesion, fragility, lack of elasticity, high labor intensity when applying this material, despite the fact that the surface must be perfectly flat.

Known MARBLE COMPOSITION FOR FINISHING WORKS (RF patent No. 2219140, publ. 20.12.2003), containing marble chips as a filler and an acrylic binder, characterized in that it contains an acrylic copolymer dispersion A-6000 as an acrylic binder and additionally it contains as a binder dispersion of MDP-50 polyvinyl acetate, as fillers - marble flour, dolomite flour and quartz sand, a preservative with antiseptic properties, titanium white as a pigment, methylcellulose as a plasticizer, 25% aqueous ammonia solution and water with the following content of components , wt.%: dispersion of polyvinyl acetate MDP-50 10-12; dispersion acrylic copolymer A-6000 3.5-4.5; marble flour 35-37; dolomite flour 3.5-4.5; marble chips 20-22; quartz sand 15-25; preservative-antiseptic 0.1-0.3; methylcellulose 0.4-0.6; ammonia (25% aqueous solution) 0.06-0.08; pigment 2.2-3.5; water the rest.

The disadvantages of this composition is low adhesion, fragility, lack of elasticity, high labor intensity when applying this material, despite the fact that the surface must be perfectly flat.

The technical problem facing the invention is to create a new elastic decorative coating with high adhesion.

The technical result of the invention is the creation of an elastic composition for a decorative coating with high adhesion and its environmental friendliness.

The technical result of the invention is achieved in that the textured decorative coating containing filler, acrylic binders, pigment, antiseptic, plasticizer, thickener and water is characterized in that it contains an acrylic copolymer dispersion with a minimum film formation temperature of 0°C and an aqueous dispersion of vinyl acetate as binder, polyacrylic salts, thickener, and slow evaporating hydrophobic glycol ether as a plasticizer with the following content of components, wt.%:

aqueous dispersion of vinyl acetate 6 - 7;

acrylic dispersion with MTP=0°С 10 - 13;

polyacrylic salts 0.5 - 1;

thickener 0.7 - 1.8;

slowly evaporating hydrophobic glycol ether 0.8 - 1.5;

preservative-antiseptic 0.2-0.8;

filler 65 - 74;

pigment 0.5 - 0.9;

water the rest.

In a textured decorative composition, marble chips with a fraction of 0.2-0.5 mm and/or quartz sand can be used as a filler. In a textured decorative composition, the pigment may contain reflective substances that can refract a beam of light, which creates a beautiful effect at night. Also, the composition of the pigment may include light-accumulative substances that can accumulate solar energy during daylight hours and create a glow of the material for 6-9 hours at night.

As part of the decorative coating, materials with a hazard class not higher than 4 and materials are used that, when copolymerized, form a very stable component that provides an elastic coating with high adhesion to other materials.

The specified content and ratio of components is optimal for achieving a technical result. A change in the composition of the coating of the quantitative content of components below or above the specified values will lead to a change in the balance of the composition and will not provide the manufactured product with sufficiently high elasticity and high adhesive properties.

In accordance with the claimed invention, various compositions of a textured decorative composition are made in a certain ratio of components.

The following table 1 shows specific examples of the compositions of the compositions that were used to study their properties.

The resulting textured decorative coating is elastic, with a high degree of stretching and high adhesion. This product can be used for both interior and exterior cladding. The coating is applied to various surfaces without prior preparation by mechanized application (compressor with a gun for applying decorative plasters, airless spraying station) or mechanical (trowel, spatula, etc.).

The adhesive composition, consisting of an acrylic copolymer dispersion with a minimum film formation temperature of 0 ° C (acrylic dispersion with MTP = 0 ° C), gives the material increased elasticity and resistance to stretching and deformation, an aqueous dispersion of vinyl acetate in combination with polyacrylic salts creates increased adhesion to many materials and increases copolymerization with acrylates. The thickener allows you to create a composition that, when mixed with fillers, does not allow it to precipitate. As a pigment, for example, titanium white, iron oxide pigments are used. As a filler, for example, quartz sand or marble chips with a fraction of 0.2-0.5 mm can be used.

It has been experimentally proved that using marble chips with a fraction of 0.2-0.5 mm as a filler to obtain a high-quality composition when applied is most optimal, both mechanically and by air and airless spraying. Marble chips of fraction 0.2-0.5, when mixed with the adhesive composition, when applied by spraying, lie flat on the surface and do not fly off.

During the tests, the material showed the following results: adhesion of the coating, MPa 0.72 (the ability of the decorative coating "Aegis" to securely bond with the surface material (concrete, wood, metal, etc.); resistance to static water, part 48 (moisture resistance); frost resistance F 35 (durability at temperature extremes); fire safety KM 1 (non-combustible); vapor permeability coefficient 0.2 (allows steam to pass and not accumulate between the coating and surface material); wear resistance; material elasticity (when bending and creases the material does not break or crack); resistant to ultraviolet; heat-saving ability (a layer of 2 mm replaces a cement block 10 cm thick in terms of thermal conductivity).

For the manufacture of a textured decorative coating, all components are taken within the stated ratios. The product is prepared by mixing the components included in this composition with a mixer in containers, having previously prepared an adhesive composition from an aqueous dispersion of vinyl acetate, an acrylic dispersion with MTP = 0 ° C, polyacrylic salts, a thickener, slowly evaporating hydrophobic glycol ether and an antiseptic preservative, followed by adding to her pigment, and then the filler and further uniform mixing with a construction mixer.

The invention is illustrated by examples of a specific implementation.

Example 1

The textured decorative coating is an elastic rough coating with elements of gloss and sparkle due to the refraction of light on the edge of the marble chips, the components of which are evenly distributed throughout the mass with wt.%:

aqueous dispersion of vinyl acetate 7;

acrylic dispersion with MTP=0°C 12;

polyacrylic salts 0.5;

thickener 0.9;

slowly evaporating hydrophobic glycol ether 0.8;

preservative-antiseptic 0.2;

marble chips with a fraction of 0.2-0.5 70;

pigment 0.6;

water 8.

Example 2

The textured decorative coating is an elastic rough coating with elements of gloss and sparkle due to the refraction of light on the edge of the marble chips, the components of which are evenly distributed throughout the mass with wt.%:

aqueous dispersion of vinyl acetate 7;

acrylic dispersion with MTP=0°C 13;

polyacrylic salts 0.8;

thickener 1.1;

slowly evaporating hydrophobic glycol ether 1.2;

preservative-antiseptic 0.4;

marble chips with a fraction of 0.2-0.5 50;

quartz sand 17;

pigment 0.5;

water 9.

Example 3

The textured decorative coating is an elastic rough coating that has a light-accumulative effect and is capable of creating a glow of the material for 6-9 hours at night, the components of which are evenly distributed throughout the mass with wt.%:

aqueous dispersion of vinyl acetate 6;

acrylic dispersion with MTP=0°C 12;

polyacrylic salts 1;

thickener 1.8;

slowly evaporating hydrophobic glycol ether 1.5;

preservative-antiseptic 0.8;

quartz sand 65;

pigment with light accumulative substance 0.9;

water 11.

The claimed combination of features makes it possible to obtain an elastic decorative coating with high adhesion, which has such properties as frost resistance, environmental friendliness, resistance to external environmental influences, economy in use, fire safety and is heat-saving. The product has a large number of color shades (more than 30), both natural and modern, and by adding black chips to the main background, it is possible to get additional tones. Due to the composition of this product, the appearance of the treated surfaces has the reflection and roughness of the stone and gives the surfaces a noble appearance.

The manufacturing technology of the claimed composition can be implemented in any production that has the necessary equipment. In addition, the production of this product can be called easily controlled from a technological point of view and has no side effects.

Thus, the invention makes it possible to obtain a new decorative, fireproof, environmentally friendly coating with high adhesion.

Table 1

Components Component content 1 2 3 4 Aqueous dispersion of vinyl acetate 7 6 7 6 Acrylic dispersion with MTP=0°С 12 10 13 12 Polyacrylic salts 0.5 0.5 0.8 1 Thickener 0.9 0.7 1.1 1.8 Slow evaporating hydrophobic glycol ether 0.8 1 1.2 1.5 Preservative-antiseptic 0.2 0.3 0.4 0.8 Filler 70 74 67 65 Pigment 0.6 0.5 0.5 0.9 Water 8 7 9 eleven

Claims (5)

1. Textured decorative composition containing filler, acrylic binders, pigment, antiseptic, plasticizer and water, characterized in that it contains an acrylic copolymer dispersion with a minimum film formation temperature of 0°C, an acrylic dispersion with MTP=0°C and an aqueous dispersion vinyl acetate as a binder, polyacrylic salts, thickener, and slowly evaporating hydrophobic glycol ether as a plasticizer with the following content, wt.%: aqueous dispersion of vinyl acetate 6-7 acrylic dispersion with MTP=0°С 10-13 polyacrylic salts 0.5-1 thickener 0.7-1.8 slowly evaporating hydrophobic glycol ether 0.8-1.5 preservative-antiseptic 0.2-0.8 filler 65-74 pigment 0.5-0.9 water rest 2. Textured decorative composition according to claim 1, characterized in that marble chips with a fraction of 0.2-0.5 mm and/or quartz sand are used as a filler. 3. Textured decorative composition according to claim 1, characterized in that the composition of the pigment contains reflective substances. 4. Textured decorative composition according to claim 1, characterized in that the composition of the pigment contains light-accumulative substances.