CN113105763A - Indoor heat-insulating coating - Google Patents

Abstract

The invention provides an indoor heat-insulating coating which comprises the following raw materials in parts by weight: acrylic resin, aggregate particles, superfine calcium carbonate, a thickening agent, a film-forming auxiliary agent, carbamate, a defoaming agent, a pH regulator, water, modified cellulose and a carbon forming agent; the preparation method of the acrylic resin comprises the following steps: step 1: mixing 100-200 parts by weight of methacrylate, 300-320 parts by weight of polyvinyl compound and 0.5-1 part by weight of initiator at 0-10 ℃, stirring, and heating to 20-30 ℃ for polymerization reaction for 30-60 min; step 2: under the stirring condition, 100-150 parts by weight of hydroxyl acrylate monomer protected by silane and 50-60 parts by weight of organic silicon polymer are added into the mixture obtained in the step 1, and polymerization reaction is carried out at 20-30 ℃ for 30-60 min to obtain an acrylic resin product.

Description

Indoor heat-insulating coating

Technical Field

The invention relates to the field of coatings, in particular to an indoor heat-insulating coating.

Background

In northern China, particularly in the northeast, a large amount of coal is used for heating in winter, under the premise that low carbon and low emission are greatly promoted in China, energy-saving and heat-insulating requirements on houses and public buildings are compelled, the problem of energy-saving and heat-insulating of building walls is increasingly concerned, governments and enterprises find methods for heat-insulating buildings and reducing the use of coal in various aspects, at present, the heat-insulating of the walls mainly adopts methods of pasting heat-insulating plates and brushing coatings on external walls, the decorative material coating of the building walls is preferred, the heat-insulating of the walls can not only solve the heat-insulating problem, but also relatively reduce the thickness of the walls, and is an effective energy-saving mode for realizing the energy saving of the buildings at present, so, however, the existing heat-insulating coating has good heat-insulating effect, but is not beautiful, poor in decoration, good in decoration, poor in heat-insulating effect, and lack of indoor heat-insulating coating with heat insulation and decoration.

Disclosure of Invention

The invention provides an indoor heat-insulating coating, which at least solves the problem that the heat-insulating effect and the decoration of the heat-insulating coating in the prior art can not be considered at the same time.

The invention provides an indoor heat-insulating coating which comprises the following raw materials in parts by weight:

20-30 parts of acrylic resin, 60-70 parts of aggregate particles, 1-1.5 parts of superfine calcium carbonate, 0.1-0.5 part of thickening agent, 1-1.5 parts of film-forming assistant, 0.1-0.2 part of carbamate, 0.1-0.2 part of defoaming agent, 0-0.02 part of pH regulator, 0-15 parts of water, 0.1-0.3 part of modified cellulose and 1-5 parts of carbon forming agent;

the aggregate is formed by mixing marble broken stones, colored mica sheets, hollow glass beads, carborundum, superfine perlite and quartz sand according to the weight ratio of 1:1:1:1: 1;

further, the preparation method of the acrylic resin comprises the following steps:

step 1: mixing 100-200 parts by weight of methacrylate, 300-320 parts by weight of polyvinyl compound and 0.5-1 part by weight of initiator at 0-10 ℃, stirring, and heating to 20-30 ℃ for polymerization reaction for 30-60 min;

step 2: and (2) adding 100-150 parts by weight of silane-protected acrylate monomer with hydroxyl and 50-60 parts by weight of organic silicon polymer into the mixture obtained in the step (1) under the stirring condition, and carrying out polymerization reaction for 30-60 min at the temperature of 20-30 ℃ to obtain an acrylic resin product.

Further, the acrylic resin is a water-based epoxy acrylic resin.

Furthermore, the acrylic resin is formed by mixing aqueous acrylic elastic resin and aqueous hydroxyl acrylic resin according to the weight ratio of 1: 1.

Further, the film-forming assistant is formed by mixing dodecyl alcohol ester, propylene glycol butyl ether and propylene glycol methyl ether according to the weight ratio of 1:1: 1.

Further, the thickener is an alkali soluble swelling thickener.

Further, the carbon forming agent is water-based isocyanate.

Further, the modified cellulose is formed by mixing hydroxyethyl fiber and hydroxymethyl fiber according to the weight ratio of 1: 1.

Furthermore, the particle size of the superfine calcium carbonate is 0.01-0.05 mu m, and the particle size of the aggregate particles is 2-4 mm.

Further, the preparation method of the indoor heat-insulating coating comprises the following steps:

step 1, weighing raw materials in parts by weight;

step 2, uniformly mixing the marble broken stone, the colored mica sheet, the hollow glass beads, the carborundum, the superfine perlite and the quartz sand to prepare aggregate particles;

step 3, mixing acrylic resin, superfine calcium carbonate, water, a film forming auxiliary agent, carbamate, modified cellulose and a carbon forming agent, and uniformly stirring at the rotating speed of 300-500 r/min by using a dispersion machine;

step 4, adding aggregate particles into the product obtained in the step 2, uniformly stirring, and adding a pH regulator to regulate the pH value to 8-9; and adding a defoaming agent and a thickening agent, and uniformly stirring until the viscosity of the mixture is 76-78 kp to obtain the heat-insulating coating.

Compared with the prior art, the invention has stable property and good heat preservation effect; the coating has the advantages of granite marble effect, easy construction, granite appearance, full display of natural flaky texture and texture of granite, good toughness, no addition of any color paste, suitability for public places, appropriate modeling, difficult fading and long service life.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

The compositions of examples 1 to 3 of the present invention are specifically shown in the following table (unit: kg).

	Example 1	Example 2	Example 3	Comparative example
					Acrylic resin	20	25	30	20
Aggregate particles	70	65	60	60
					Superfine calcium carbonate	1.5	3.5	1.2	1.5
Thickening agent	0.1	0.3	0.5	0.1
					Film forming aid	1	1.3	1.5	1
Carbamates, their preparation and their use	0.2	0.1	0.1	0.1
					Defoaming agent	0.1	0.2	0.2	0.1
PH regulator	0	0.01	0.02	0
					Water (W)	15	8	1	1
Modified cellulose	0.3	0.2	0.1	0.2
					Carbon forming agent	5	3	1	5

The acrylic resin in the embodiment 2 is water-based epoxy acrylic resin, and the acrylic resin in the embodiments 2 and 3 is formed by mixing water-based acrylic elastic resin and water-based hydroxy acrylic resin according to the weight ratio of 1: 1;

examples 1-3, the film forming aid in the control example was a mixture of dodecyl alcohol ester, propylene glycol butyl ether, and propylene glycol methyl ether at a weight ratio of 1:1: 1;

the thickening agents in examples 1-3 and the comparative example are alkali-soluble swelling thickening agents;

examples 1-3, comparative examples in which the char-forming agent was an aqueous isocyanate;

in examples 1 to 3 and comparative examples, the modified cellulose was obtained by mixing hydroxyethyl fiber and hydroxymethyl fiber at a weight ratio of 1: 1;

in examples 1 to 3 and comparative examples, the particle size of the ultrafine calcium carbonate was 0.01 to 0.05 μm, and the particle size of the aggregate particles was 2 to 4 mm;

the preparation method of the heat-insulating coating of the embodiment 1-3 and the comparative example comprises the following steps:

step 1, weighing raw materials in parts by weight;

step 2, uniformly mixing the marble broken stone, the colored mica sheet, the hollow glass beads, the carborundum, the superfine perlite and the quartz sand to prepare aggregate particles;

step 3, mixing acrylic resin, superfine calcium carbonate, water, a film forming auxiliary agent, carbamate, modified cellulose and a carbon forming agent, and uniformly stirring at the rotating speed of 300-500 r/min by using a dispersion machine;

step 4, adding aggregate particles into the product obtained in the step 2, uniformly stirring, and adding a pH regulator to regulate the pH value to 8-9; and adding a defoaming agent and a thickening agent, and uniformly stirring until the viscosity of the mixture is 76-78 kp to obtain the heat-insulating coating.

The preparation method of the acrylic resin used in example 1 of the present invention is as follows:

step 1: taking 100 parts by weight of methacrylate, 320 parts by weight of polyvinyl compound and 0.5 part by weight of initiator, stirring and mixing at 0-10 ℃, and heating to 30 ℃ for carrying out polymerization reaction for 50 min;

step 2: 100 parts by weight of the acrylate monomer with hydroxyl group protected by silane and 60 parts by weight of the organosilicon polymer are added into the mixture obtained in the step 1 under the condition of stirring, and the mixture is polymerized for 50min at the temperature of 30 ℃, so as to obtain the acrylic resin products of the embodiments 1 to 3 of the invention.

Wherein the polyvinyl compound is vinyl ether and divinylbenzene according to a molar ratio of 2: 1, the silane-protected acrylate monomer with hydroxyl is 2 to (trimethylsiloxy) ethyl methacrylate, and the organic silicon polymer is silicone oil.

The preparation method of the acrylic resin of the comparative example of the invention is as follows:

step 1: taking 180 parts by weight of methacrylate, 300 parts by weight of polyvinyl compound and 0.5 part by weight of initiator, stirring and mixing at 0-5 ℃, and heating to 30 ℃ for carrying out polymerization reaction for 50 min;

step 2: under the condition of stirring, 150 parts by weight of acrylate monomer with hydroxyl and 60 parts by weight of organic silicon polymer are added into the mixture obtained in the step 1, and polymerization reaction is carried out for 50min at 30 ℃, so as to obtain the acrylic resin of the comparative example of the invention.

Wherein the polyvinyl compound is vinyl ether and divinylbenzene according to a molar ratio of 2: 1, the acrylate monomer with hydroxyl is 2 hydroxyethyl methacrylate, and the organic silicon polymer is silicone oil.

The properties of the coating materials of examples 1 to 3 of the present invention and comparative examples are shown in the following table.

The acrylic resin in the embodiment 1 of the invention adopts the acrylate monomer with hydroxyl protected by silane, so that the hydroxyl of the acrylate monomer is protected by silane, and the hydroxyl is prevented from participating in polymerization reaction, thereby improving the hydroxyl content in the acrylic resin and increasing the viscosity of the acrylic resin; the elastic emulsion of the comparison example directly adopts hydroxyl acrylate monomer to carry out polymerization reaction, so that hydroxyl participates in the polymerization process, the loss of the number of the hydroxyl is caused, and the viscosity is reduced; in the test process, the coating of the invention is similar to granite marble in color, can be visually imitated and falsified, has smooth coating, has a rough comparison example surface and has poor simulation effect of granite marble.

The invention has the advantages of simple construction, good heat preservation effect, good toughness, no color paste, long service life and the like, can make up for the defects of large occupied space and rough surface of the interior wall surface when the real stone material is used for molding, can ensure long-term use, and is not easy to fade. The coating has good heat insulation performance and is suitable for indoor wall surface heat insulation of high-grade public buildings, hotels, office buildings, government buildings, villas and the like.

Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the modifications and equivalents of the specific embodiments of the present invention can be made by those skilled in the art after reading the present specification, but these modifications and variations do not depart from the scope of the claims of the present application.

Claims (10)

1. The indoor heat-insulating coating is characterized by comprising the following raw materials in parts by weight:

20-30 parts of acrylic resin, 60-70 parts of aggregate particles, 1-1.5 parts of superfine calcium carbonate, 0.1-0.5 part of thickening agent, 1-1.5 parts of film-forming assistant, 0.1-0.2 part of carbamate, 0.1-0.2 part of defoaming agent, 0-0.02 part of pH regulator, 0-15 parts of water, 0.1-0.3 part of modified cellulose and 1-5 parts of carbon forming agent;

the aggregate is formed by mixing marble broken stones, colored mica sheets, hollow glass beads, carborundum, superfine perlite and quartz sand according to the weight ratio of 1:1:1:1: 1.

2. The indoor heat-insulating coating as claimed in claim 1, wherein the preparation method of the acrylic resin is as follows:

step 1: mixing 100-200 parts by weight of methacrylate, 300-320 parts by weight of polyvinyl compound and 0.5-1 part by weight of initiator at 0-10 ℃, stirring, and heating to 20-30 ℃ for polymerization reaction for 30-60 min;

step 2: and (2) adding 100-150 parts by weight of silane-protected acrylate monomer with hydroxyl and 50-60 parts by weight of organic silicon polymer into the mixture obtained in the step (1) under the stirring condition, and carrying out polymerization reaction for 30-60 min at the temperature of 20-30 ℃ to obtain an acrylic resin product.

3. The indoor heat-insulating coating as claimed in claim 1, wherein the acrylic resin is a water-based epoxy acrylic resin.

4. The indoor heat-insulating coating as claimed in claim 1, wherein the acrylic resin is a mixture of water-based acrylic elastic resin and water-based hydroxyl acrylic resin in a weight ratio of 1: 1.

5. The indoor heat-insulating coating as claimed in claim 1, wherein the film-forming assistant is a mixture of dodecyl alcohol ester, propylene glycol butyl ether and propylene glycol methyl ether in a weight ratio of 1:1: 1.

6. The indoor heat-insulating paint as claimed in claim 1, wherein the thickener is alkali soluble thickener.

7. The indoor heat-insulating coating as claimed in claim 1, wherein the carbon-forming agent is water-based isocyanate.

8. The indoor heat-insulating coating as claimed in claim 1, wherein the modified cellulose is prepared by mixing hydroxyethyl fiber and hydroxymethyl fiber in a weight ratio of 1: 1.

9. The indoor heat-insulating coating as claimed in claim 1, wherein the particle size of the superfine calcium carbonate is 0.01-0.05 μm, and the particle size of the aggregate particles is 2-4 mm.

10. The indoor heat-insulating coating as claimed in claim 1, wherein the preparation method of the indoor heat-insulating coating comprises the following steps:

step 1, weighing raw materials in parts by weight;

step 2, uniformly mixing the marble broken stone, the colored mica sheet, the hollow glass beads, the carborundum, the superfine perlite and the quartz sand to prepare aggregate particles;

step 3, mixing acrylic resin, superfine calcium carbonate, water, a film forming auxiliary agent, carbamate, modified cellulose and a carbon forming agent, and uniformly stirring at the rotating speed of 300-500 r/min by using a dispersion machine;

step 4, adding aggregate particles into the product obtained in the step 2, uniformly stirring, and adding a pH regulator to regulate the pH value to 8-9; and adding a defoaming agent and a thickening agent, and uniformly stirring until the viscosity of the mixture is 76-78 kp to obtain the heat-insulating coating.