CN112300639A - Organic-inorganic composite interior wall coating with visible light catalytic effect and preparation method thereof - Google Patents
Organic-inorganic composite interior wall coating with visible light catalytic effect and preparation method thereof Download PDFInfo
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- CN112300639A CN112300639A CN202011225697.4A CN202011225697A CN112300639A CN 112300639 A CN112300639 A CN 112300639A CN 202011225697 A CN202011225697 A CN 202011225697A CN 112300639 A CN112300639 A CN 112300639A
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/43—Thickening agents
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect and a preparation method thereof, wherein the organic-inorganic composite interior wall coating is mainly prepared from the following components in parts by weight: 15-25 parts of deionized water, 0.4-0.8 part of a dispersant, 0.1-0.5 part of an alkaline pH regulator, 0.1-0.5 part of a wetting agent, 0.1-0.5 part of a pigment, 10-18 parts of a common filler, 10-21 parts of a porous filler, 10-25 parts of a visible light catalytic nano titanium dioxide prefabricated stock solution, 4-10 parts of an emulsion, 12-18 parts of an inorganic component, 1-2 parts of an antifreeze agent, 1-2 parts of a film-forming additive, 0.8-1.4 parts of a thickening agent, and 0.2-0.4 part of a defoaming agent. The invention overcomes the defects of lower utilization efficiency, poorer aging resistance, easy hardening and embrittlement of inorganic coating after film forming and the like of the existing internal wall coating (organic coating) photocatalyst with visible light catalytic effect, endows the coating with higher standard environmental protection performance by combining the visible light catalytic material and the organic-inorganic composite coating, and achieves the balance of high photocatalytic efficiency and excellent performance of a paint film.
Description
Technical Field
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect and a preparation method thereof, which are applied to the field of interior wall coatings.
Background
In recent years, visible light catalytic materials have received increasing attention due to their excellent photocatalytic properties. The visible light catalytic material overcomes the disadvantage that the common photocatalytic material can be subjected to photocatalytic degradation only under the irradiation of near ultraviolet light with stronger energy through modification treatment, can generate free electron and hole pairs with strong oxidizing property under the irradiation of visible light, continuously decomposes indoor air pollutants, does not generate secondary pollution, and is an ideal indoor air purification material. The type of the existing photocatalytic material for the coating is mainly nano-scale modified titanium dioxide, and the substance is usually easily shielded or wrapped by other components when being applied to a coating system, so that the utilization efficiency of the photocatalyst is influenced. Patent application CN201910608852.1 discloses an interior wall coating with visible light catalytic effect, which has significant effect on degrading pollutants such as formaldehyde. On the basis of the invention, further improving the environmental protection performance, the paint film stability and the photocatalyst utilization efficiency of the product becomes a challenge.
Compared with organic coatings, inorganic coatings have certain advantages: the base material of the inorganic coating is directly obtained from the nature and has rich sources; the high alkalinity of the inorganic coating can kill most of the strains, and simultaneously, the good air permeability of the inorganic coating can keep the paint film dry; the high porosity of the inorganic coating increases the contact chance of the photocatalytic material and air pollutants, and is beneficial to improving the photocatalytic degradation efficiency; the inorganic coating has excellent aging resistance, degradation resistance and other properties, and the paint film has stable and durable performance. However, the inorganic coating also has some disadvantages, such as the inorganic coating is easy to become hard and brittle after film forming.
Therefore, it is necessary to provide an organic-inorganic composite interior wall coating with better photocatalytic efficiency, paint film physical properties, ultraviolet light aging resistance, and paint film less prone to embrittlement and having visible light catalytic effect, and a preparation method thereof.
Disclosure of Invention
In order to overcome the defects that the existing interior wall coating (organic coating) photocatalyst with the visible light catalysis effect has low utilization efficiency, poor aging resistance, hardening and embrittlement of inorganic coating after film forming and the like, the invention provides the organic-inorganic composite interior wall coating with the visible light catalysis effect and the preparation method thereof.
The technical scheme of the invention is as follows:
an organic-inorganic composite interior wall coating with a visible light catalytic effect is prepared from the following components in parts by weight:
15-25 parts of water, namely,
0.4 to 0.8 portion of dispersant,
0.1 to 0.5 portion of alkaline pH regulator,
0.1 to 0.5 portion of wetting agent,
10-18 parts of a pigment, namely,
10-21 parts of common filler,
10-25 parts of a porous filler,
4-10 parts of visible light catalytic nano titanium dioxide prefabricated stock solution,
12-18 parts of an emulsion,
4-15 parts of an inorganic component,
1-2 parts of an antifreeze agent,
1-2 parts of a film-forming auxiliary agent,
0.8 to 1.4 portions of thickening agent,
0.2-0.4 part of defoaming agent;
the wetting agent is one or any combination of two of long-chain alkyl polyoxyethylene ether or nonionic modified fatty acid derivatives;
the dispersant is one or any combination of two of a hydrophobic modified sodium salt dispersant or a hydrophobic modified ammonium salt dispersant;
the thickening agent is one or any combination of two of a hydrophobic modified alkali swelling acrylic acid thickening agent or a hydrophobic modified polyurethane thickening agent;
the inorganic component is one or any combination of two of potassium silicate and silica sol;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
15-29.5 parts of water,
2-8 parts of a sodium salt dispersing agent,
2-5 parts of a wetting agent,
0.1 to 0.2 portion of alkaline pH regulator,
55-75 parts of visible light catalytic nano titanium dioxide,
0.5 to 1.5 portions of thickening agent,
0.2-0.4 part of defoaming agent;
in the visible light catalytic nano titanium dioxide prefabricated stock solution, the visible light catalytic nano titanium dioxide is a spherical porous modified titanium dioxide photocatalyst with the particle size of 1.0-2.0um, and the wetting agent is a hydrophilic surfactant.
The spherical porous modified titanium dioxide photocatalyst (visible light catalytic nano titanium dioxide) with the optimal particle size of 1.0-2.0um in the organic-inorganic composite interior wall coating with the visible light catalytic effect can play a photocatalysis role in a visible light wave band, the spherical porous modified titanium dioxide photocatalyst is used as the photocatalyst, the photocatalyst is premixed into a visible light catalytic nano titanium dioxide prefabricated stock solution and then is dispersed in the coating to realize the photocatalysis effect, and the porous filler is added through the system formula design and is matched with inorganic components to form a film so as to obtain a porous coating. The polarity difference between the visible-light-catalyzed nano titanium dioxide prefabricated stock solution and the coating substrate (the visible-light-catalyzed nano titanium dioxide prefabricated stock solution system is hydrophilic, and the coating substrate system is oleophilic) is manufactured through system design, so that more spherical porous modified titanium dioxide photocatalysts float and are distributed on the surface of a paint film in a film forming stage, the photocatalytic nano titanium dioxide photocatalyst shows an excellent photocatalytic effect, has good environmental protection performance, and can effectively degrade harmful gases in air such as nitrogen oxide, methyl mercaptan, toluene, formaldehyde and the like. The specific method comprises the following steps: 1. selecting a hydrophilic wetting dispersion system, and preparing a photocatalyst prefabricated stock solution (namely the visible light catalytic nano titanium dioxide prefabricated stock solution) according to the formula of the visible light catalytic nano titanium dioxide prefabricated stock solution; 2. preparing a coating base material (the base material refers to other components except for a visible light catalytic nano titanium dioxide prefabricated stock solution) by using long-chain macromolecules or a wetting agent and a hydrophobic dispersing agent which contain alkyl and ester and have a low HLB value and matching with a hydrophobic modified thickening system; 3. mixing the visible light catalytic nano titanium dioxide prefabricated stock solution with a coating base material, and dispersing to obtain a coating finished product. The organic-inorganic composite interior wall coating with the visible light catalytic effect also solves the problem of paint film embrittlement easily caused by inorganic coatings through matching of organic-inorganic film forming components, can also improve the problems of aging resistance and poor heat resistance of organic components, endows the coating with higher standard environmental protection performance, and achieves the balance of high photocatalytic efficiency and excellent performance of the paint film.
The organic-inorganic composite interior wall coating comprises the following components:
the alkaline pH regulator is
Any combination of one or two of BS 168 or MA-95;
the emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Iseman OE400, Iseman OE300 or Dow 290 Plus;
the pigment is rutile titanium dioxide;
the common filler is one or any combination of more than two of heavy calcium, talcum powder, mica powder and wollastonite;
the porous filler is one or any combination of calcined soil and diatomite;
the inorganic component is one or any combination of two of potassium silicate and silica sol;
the defoaming agent is one or any combination of mineral oil modified defoaming agent and silicon dioxide defoaming agent.
The antifreeze agent may be polyethylene glycol.
The water is preferably deionized water.
The preferable alkaline pH regulator is used for regulating the pH of the coating more quickly and easily; the preferable emulsion and film-forming additive lead the film-forming effect to be better; preferred pigments have better paint film hiding power; the optimized common filler plays a role of a skeleton in a paint film, so that the physical property of the paint film is improved; the addition of a preferred porous filler renders the coating porous; preferred inorganic components are readily available; the preferable defoaming agent has good defoaming effect; the optimized antifreeze agent can obviously improve the antifreeze performance of the coating.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the thickening agent is one or any combination of two of alkali swelling acrylic acid thickening agent and polyurethane thickening agent;
the alkaline pH regulator is
Any combination of one or two of BS 168 or MA-95;
the defoaming agent is one or any combination of mineral oil modified defoaming agent and silicon dioxide defoaming agent.
Preferred thickeners provide better adjustment of the stock solution viscosity. Preferred alkaline pH adjusting agents adjust rapidly. The preferable defoaming agent has good defoaming effect.
The organic-inorganic composite interior wall coating further comprises:
0.2 to 0.4 portion of preservative
0.3-0.6 part of mildew preventive.
The antiseptic and the mildew preventive are added to improve the antiseptic and mildew resistance of the paint film.
The organic-inorganic composite interior wall coating comprises the following components in percentage by weight:
the preservative is CIT or MIT or any combination of two of CIT and MIT;
the mildew preventive is one or any combination of ZnPT or IPBC.
The preferred preservative has better antiseptic and bactericidal effects; the preferred mildewcide has better mildewproof effect.
The visible light catalytic nano titanium dioxide prefabricated stock solution further comprises:
0.1-0.5 part of preservative.
The stock solution can be prevented from deterioration by adding antiseptic.
In the visible light catalytic nano titanium dioxide prefabricated stock solution: the preservative is CIT or MIT or any combination of the two.
The preferred preservative has better preservative effect.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 400-600r/min for 4-6 minutes, slowly adding the thickening agent inwards after stirring, then dispersing for at least 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1400-1600r/min for high-speed dispersion for at least 10 minutes, then reducing the rotating speed to 600-800r/min, and uniformly dispersing to obtain the visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of the defoaming agent, stirring and dispersing uniformly at the speed of 600r/min 400-; then adding pigment, common filler and porous filler, and dispersing at a high speed of 1400-1600r/min for at least 15 minutes; when the fineness reaches 45-55 μm, the rotating speed is reduced to 800 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze and the rest of the defoaming agent are sequentially added inwards, the rest of the thickening agent is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
According to the preparation method of the organic-inorganic composite interior wall coating with the visible light catalysis effect, the visible light catalysis nano titanium dioxide prefabricated stock solution is prepared firstly, and then the visible light catalysis nano titanium dioxide prefabricated stock solution and the coating substrate are prepared through the coating system formula, so that the polarity of the visible light catalysis nano titanium dioxide prefabricated stock solution is poor (the visible light catalysis nano titanium dioxide prefabricated stock solution system is hydrophilic, and the coating substrate system is oleophilic), more spherical porous modified titanium dioxide photocatalysts float up and are distributed on the surface of a paint film in the film forming stage when the visible light catalysis nano titanium dioxide prefabricated stock solution and the coating substrate system are mixed, and the excellent photocatalysis effect; meanwhile, the porous filler is added into the system and is matched with inorganic components, and a porous coating can be obtained after film formation, so that the porous coating with high photocatalytic performance is obtained. The preparation method is simple and convenient.
And (3) after the rotating speed is reduced to 600-800r/min in the step (I), adding a preservative in the visible light catalytic nano titanium dioxide prefabricated stock solution formula in the dispersing process, and adding a mildew preventive and a preservative in the organic-inorganic composite interior wall coating formula with the visible light catalytic effect before the defoamer is added in the step (II).
Compared with the prior art, the method has the following advantages:
1) according to the organic-inorganic composite interior wall coating with the visible light catalytic effect, the photocatalyst can float on the surface of a paint film in a film forming stage by manufacturing the photocatalyst prefabricated liquid and the base material with poor polarity, so that the utilization efficiency of the photocatalyst is improved; the use of the porous filler can increase the surface area of a paint film, increase the contact chance of the photocatalyst and organic substances and improve the degradation effect; meanwhile, a paint film with good physical property and aging resistance can be obtained by matching organic and inorganic film-forming components;
2) the preparation method of the organic-inorganic composite interior wall coating with the visible light catalysis effect is used for preparing the visible light catalysis nano titanium dioxide prefabricated stock solution, the polarity difference between the visible light catalysis nano titanium dioxide prefabricated stock solution and the coating substrate is prepared through the coating system formula, so that more spherical porous modified titanium dioxide photocatalysts float and distribute on the surface of a paint film in a film forming stage when the visible light catalysis nano titanium dioxide prefabricated stock solution and the coating substrate are mixed, the excellent photocatalysis effect is shown, the porous filler and the inorganic component are added into the matching system, and the porous coating can be obtained after film forming, so that the porous coating with high photocatalysis performance is obtained.
Detailed Description
The technical solution of the present invention will be described in detail with reference to examples.
Example 1
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
21.6 parts of deionized water
0.6 portion of dispersant
0.1 part of alkaline pH regulator
0.2 portion of wetting agent
16 portions of pigment
Common filler 21 parts
10 portions of porous filler
Visible light catalytic nano titanium dioxide prefabricated stock solution 5 parts
15 portions of emulsion
6 portions of inorganic component
Antifreeze agent 1.3 parts
Film-forming assistant 1.2 parts
0.8 part of thickening agent
0.4 portion of defoaming agent
0.3 part of preservative
0.5 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
25.5 parts of deionized water
5 parts of sodium salt dispersant
Wetting agent 3 parts
0.1 part of alkaline pH regulator
Visible light catalytic nano titanium dioxide 65 parts
0.8 part of thickening agent
0.3 portion of defoaming agent
0.3 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is long-chain alkyl polyoxyethylene ether;
the dispersant is a hydrophobic modified sodium salt dispersant;
the thickening agent is a hydrophobic modified alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is
BS 168；
The emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Iseman OE 400;
the pigment is rutile titanium dioxide;
the common filler is heavy calcium carbonate;
the porous filler is calcined soil;
the inorganic component is potassium silicate;
the defoaming agent is a mineral oil modified defoaming agent;
the antifreeze agent is polyethylene glycol;
the preservative is CIT;
the mildew preventive is ZnPT.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 1.8 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is an alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is
BS 168；
The defoaming agent is a mineral oil modified defoaming agent;
the preservative is CIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 500r/min for 5 minutes, slowly adding the thickening agent after stirring, then dispersing for 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1500r/min for high-speed dispersion for 10 minutes, then reducing the rotating speed to 700r/min, adding the preservative inwards, and uniformly dispersing to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of defoaming agent, stirring and dispersing uniformly at the speed of 500r/min, slowly adding the thickening agent accounting for 75% of the total volume of the thickening agent inwards, dispersing for 10 minutes, then increasing the rotating speed to 1200r/min, and continuing to disperse for 10 minutes; then adding pigment, common filler and porous filler into the mixture, and dispersing the mixture at a high speed of 1500r/min for 15 minutes; when the fineness reaches 50 mu m, reducing the rotating speed to 700 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the residual defoamer are sequentially added inwards, the residual thickener is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
Example 2
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
21.5 parts of deionized water
0.7 part of dispersant
0.1 part of alkaline pH regulator
0.2 portion of wetting agent
16 portions of pigment
12 portions of common filler
19 parts of porous filler
Visible light catalytic nano titanium dioxide prefabricated stock solution 5 parts
15 portions of emulsion
6 portions of inorganic component
Antifreeze agent 1.3 parts
Film-forming assistant 1.2 parts
0.8 part of thickening agent
0.4 portion of defoaming agent
0.3 part of preservative
0.5 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
25.5 parts of deionized water
5 parts of sodium salt dispersant
Wetting agent 3 parts
0.1 part of alkaline pH regulator
Visible light catalytic nano titanium dioxide 65 parts
0.8 part of thickening agent
0.3 portion of defoaming agent
0.3 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is long-chain alkyl polyoxyethylene ether;
the dispersant is a hydrophobic modified ammonium salt dispersant;
the thickening agent is a hydrophobic modified polyurethane thickening agent;
the alkaline pH regulator is MA-95;
the emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Iseman OE 400;
the pigment is rutile titanium dioxide;
the common filler is any combination of talcum powder and mica powder;
the porous filler is diatomite;
the inorganic component is potassium silicate;
the defoaming agent is a mineral oil modified defoaming agent.
The preservative is MIT;
the mildew preventive is IPBC.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 1.0 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is a polyurethane thickening agent;
the alkaline pH regulator is MA-95;
the defoaming agent is a mineral oil modified defoaming agent;
the preservative was MIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 500r/min for 5 minutes, slowly adding the thickening agent inwards after stirring, then dispersing for at least 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1500r/min for high-speed dispersion for 10 minutes, then reducing the rotating speed to 700r/min, adding the preservative inwards, and uniformly dispersing to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of defoaming agent, stirring and dispersing uniformly at the speed of 500r/min, slowly adding a thickening agent accounting for 70% of the total volume of the thickening agent inwards, dispersing for 10 minutes, then increasing the rotating speed to 1200r/min, and continuing to disperse for 10 minutes; then adding pigment, common filler and porous filler, and dispersing at a high speed of 11500r/min for 15 minutes; when the fineness reaches 50 mu m, reducing the rotating speed to 700 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the residual defoamer are sequentially added inwards, the residual thickener is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
Example 3
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
20.3 portions of deionized water
0.7 part of dispersant
0.1 part of alkaline pH regulator
0.2 portion of wetting agent
15 portions of pigment
11 portions of common filler
20 portions of porous filler
6 parts of visible light catalytic nano titanium dioxide prefabricated stock solution
Emulsion 17 parts
Inorganic component 5 parts
Antifreeze agent 1.4 parts
Film-forming assistant 1.3 parts
0.8 part of thickening agent
0.4 portion of defoaming agent
0.3 part of preservative
0.5 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
20.5 parts of deionized water
5 parts of sodium salt dispersant
Wetting agent 3 parts
0.1 part of alkaline pH regulator
Visible light catalytic nano titanium dioxide 70 parts
0.8 part of thickening agent
0.3 portion of defoaming agent
0.3 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is long-chain alkyl polyoxyethylene ether;
the dispersant is any combination of a hydrophobic modified sodium salt dispersant and a hydrophobic modified ammonium salt dispersant;
the thickening agent is any combination of a hydrophobic modified alkali swelling acrylic acid thickening agent and a hydrophobic modified polyurethane thickening agent;
the alkaline pH regulator is
Any combination of BS 168 and MA-95;
the emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Iseman OE 400;
the pigment is rutile titanium dioxide;
the common filler is any combination of talcum powder, mica powder and wollastonite;
the porous filler is any combination of calcined soil and diatomite;
the inorganic component is potassium silicate;
the defoaming agent is a mineral oil modified defoaming agent.
The preservative is any combination of CIT and MIT;
the mildew preventive is any combination of ZnPT and IPBC.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 2.0 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is any combination of an alkali swelling acrylic acid thickening agent and a polyurethane thickening agent;
the alkaline pH regulator is
Any combination of BS 168 and MA-95;
the defoaming agent is a mineral oil modified defoaming agent;
the preservative is any combination of CIT and MIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and a part of defoamer, dispersing and stirring at the rotating speed of 500r/min for 5 minutes, slowly adding the thickener inwards after stirring, then dispersing for 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1500r/min for high-speed dispersion for 10 minutes, then reducing the rotating speed to 700r/min, adding the preservative inwards, and uniformly dispersing to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and the rest defoaming agent, stirring and dispersing uniformly at the speed of 500r/min, slowly adding the thickening agent accounting for 80 percent of the total volume of the thickening agent inwards, dispersing for 10 minutes, then increasing the rotating speed to 1200r/min, and continuing to disperse for 10 minutes; then adding pigment, common filler and porous filler into the mixture, and dispersing the mixture at a high speed of 1500r/min for 15 minutes; when the fineness reaches 50 mu m, reducing the rotating speed to 700 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the defoaming agent are sequentially added inwards, the rest of the thickening agent is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
Example 4
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
21.4 parts of deionized water
0.7 part of dispersant
0.1 part of alkaline pH regulator
0.2 portion of wetting agent
14 portions of pigment
14 portions of common filler
Porous filler 17 parts
7 parts of visible light catalytic nano titanium dioxide prefabricated stock solution
15 portions of emulsion
6 portions of inorganic component
Antifreeze agent 1.3 parts
Film-forming assistant 1.2 parts
0.9 portion of thickening agent
0.4 portion of defoaming agent
0.3 part of preservative
0.5 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
20.5 parts of deionized water
5 parts of sodium salt dispersant
Wetting agent 3 parts
0.1 part of alkaline pH regulator
Visible light catalytic nano titanium dioxide 70 parts
0.8 part of thickening agent
0.3 portion of defoaming agent
0.3 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is long-chain alkyl polyoxyethylene ether;
the dispersant is a hydrophobic modified sodium salt dispersant;
the thickening agent is a hydrophobic modified alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is
BS 168；
The emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Iseman OE 400;
the pigment is rutile titanium dioxide;
the common filler is any combination of heavy calcium carbonate and talcum powder;
the porous filler is one or any combination of calcined soil and diatomite;
the inorganic component is potassium silicate;
the defoaming agent is a mineral oil modified defoaming agent.
The preservative is CIT;
the mildew preventive is ZnPT.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 1.0 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is an alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is
BS 168；
The defoaming agent is a mineral oil modified defoaming agent;
the preservative is CIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 500r/min for 5 minutes, slowly adding the thickening agent inwards after stirring, then dispersing for 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1500r/min for high-speed dispersion for 10 minutes, then reducing the rotating speed to 700r/min, adding the preservative inwards, and uniformly dispersing to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of defoaming agent, stirring and dispersing uniformly at the speed of 500r/min, slowly adding the thickening agent accounting for 70% of the total volume of the thickening agent inwards, dispersing for 10 minutes, then increasing the rotating speed to 1200r/min, and continuing to disperse for 10 minutes; then adding pigment, common filler and porous filler into the mixture, and dispersing the mixture at a high speed of 1500r/min for 15 minutes; when the fineness reaches 45-55 μm, reducing the rotating speed to 700 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the residual defoamer are sequentially added inwards, the residual thickener is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
Example 5
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
21.5 parts of deionized water
0.7 part of dispersant
0.1 part of alkaline pH regulator
0.2 portion of wetting agent
14 portions of pigment
11 portions of common filler
20 portions of porous filler
7 parts of visible light catalytic nano titanium dioxide prefabricated stock solution
15 portions of emulsion
6 portions of inorganic component
Antifreeze agent 1.3 parts
Film-forming assistant 1.2 parts
0.8 part of thickening agent
0.4 portion of defoaming agent
0.3 part of preservative
0.5 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
20.5 parts of deionized water
5 parts of sodium salt dispersant
Wetting agent 3 parts
0.1 part of alkaline pH regulator
Visible light catalytic nano titanium dioxide 70 parts
0.8 part of thickening agent
0.3 portion of defoaming agent
0.3 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is long-chain alkyl polyoxyethylene ether;
the dispersant is a hydrophobic modified ammonium salt dispersant;
the thickening agent is a hydrophobic modified polyurethane thickening agent;
the alkaline pH regulator is MA-95;
the emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Iseman OE 400;
the pigment is rutile titanium dioxide;
the common filler is any combination of heavy calcium carbonate, talcum powder and mica powder;
the porous filler is calcined soil;
the inorganic component is potassium silicate;
the defoaming agent is a mineral oil modified defoaming agent.
The preservative is MIT;
the mildew preventive is IPBC.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 2.0 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is a polyurethane thickening agent;
the alkaline pH regulator is MA-95;
the defoaming agent is a mineral oil modified defoaming agent;
the preservative was MIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 500r/min for 5 minutes, slowly adding the thickening agent inwards after stirring, then dispersing for 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1500r/min for high-speed dispersion for 10 minutes, then reducing the rotating speed to 700r/min, adding the preservative inwards, and uniformly dispersing to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of defoaming agent, stirring and dispersing uniformly at the speed of 500r/min, slowly adding the thickening agent accounting for 80% of the total volume of the thickening agent inwards, dispersing for 10 minutes, then increasing the rotating speed to 1200r/min, and continuing to disperse for 10 minutes; then adding pigment, common filler and porous filler into the mixture, and dispersing the mixture at a high speed of 1500r/min for 15 minutes; when the fineness reaches 50 mu m, reducing the rotating speed to 700 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the residual defoamer are sequentially added inwards, the residual thickener is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
Example 6
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
22 portions of deionized water
0.4 portion of dispersant
0.3 part of alkaline pH regulator
0.5 part of wetting agent
10 portions of pigment
10 portions of common filler
15 portions of porous filler
10 parts of visible light catalytic nano titanium dioxide prefabricated stock solution
12 portions of emulsion
Inorganic component 15 parts
Antifreeze agent 1 part
Film-forming assistant 1 part
Thickener 1.4 parts
0.4 portion of defoaming agent
0.4 portion of preservative
0.6 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
29.5 parts of deionized water
8 parts of sodium salt dispersant
Wetting agent 5 parts
0.1 part of alkaline pH regulator
Visible light catalysis nanometer titanium dioxide 55 parts
1.5 portions of thickening agent
0.4 portion of defoaming agent
0.5 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is a nonionic modified fatty acid derivative;
the dispersant is any combination of a hydrophobic modified sodium salt dispersant and a hydrophobic modified ammonium salt dispersant;
the thickening agent is any combination of a hydrophobic modified alkali swelling acrylic acid thickening agent and a hydrophobic modified polyurethane thickening agent;
the alkaline pH regulator is
Any combination of BS 168 and MA-95;
the emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Ismann OE 300;
the pigment is rutile titanium dioxide;
the common filler is wollastonite;
the porous filler is calcined soil;
the inorganic component is silica sol;
the defoaming agent is a silicon dioxide defoaming agent.
The preservative is any combination of CIT and MIT;
the mildew preventive is any combination of ZnPT and IPBC.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 1.8 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is a polyurethane thickening agent;
the alkaline pH regulator is AMP-95;
the defoaming agent is a silicon dioxide defoaming agent;
the preservative is BIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 400r/min for 4 minutes, slowly adding the thickening agent inwards after stirring, then dispersing for 12 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1400r/min for high-speed dispersion for 12 minutes, then reducing the rotating speed to 600r/min, adding the preservative inwards, and uniformly dispersing to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of defoaming agent, stirring and dispersing uniformly at the speed of 400r/min, slowly adding the thickening agent accounting for 75% of the total volume of the thickening agent inwards, dispersing for 12 minutes, then increasing the rotating speed to 1000r/min, and continuing to disperse for 12 minutes; then adding pigment, common filler and porous filler into the mixture, and dispersing the mixture at a high speed of 1400r/min for 18 minutes; when the fineness reaches 45 mu m, reducing the rotating speed to 600 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the residual defoamer are sequentially added inwards, the residual thickener is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
Example 7
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
15 portions of deionized water
0.8 portion of dispersant
0.5 part of alkaline pH regulator
0.1 part of wetting agent
Pigment 17.1 parts
10 portions of common filler
25 parts of porous filler
4 parts of visible light catalytic nano titanium dioxide prefabricated stock solution
18 portions of emulsion
4 portions of inorganic component
Antifreeze 2 parts
Film-forming assistant 2 parts
0.8 part of thickening agent
0.2 portion of defoaming agent
0.2 portion of preservative
0.3 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
15 portions of deionized water
4 parts of sodium salt dispersant
Wetting agent 5 parts
0.2 portion of alkaline pH regulator
75 parts of visible light catalytic nano titanium dioxide
0.5 part of thickening agent
0.2 portion of defoaming agent
0.1 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is any combination of long-chain alkyl polyoxyethylene ether and nonionic modified fatty acid derivatives;
the dispersant is a hydrophobic modified sodium salt dispersant;
the thickening agent is a hydrophobic modified alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is
BS 168；
The emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Dow 290 Plus;
the pigment is rutile titanium dioxide;
the common filler is talcum powder;
the porous filler is diatomite;
the inorganic component is any combination of potassium silicate and silica sol;
the defoaming agent is any combination of mineral oil modified defoaming agent and silicon dioxide defoaming agent.
The preservative is CIT;
the mildew preventive is ZnPT.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 1.0 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is an alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is
BS 168；
The defoaming agent is any combination of a mineral oil modified defoaming agent and a silicon dioxide defoaming agent;
the preservative is CIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 600r/min for 6 minutes, slowly adding the thickening agent inwards after stirring, dispersing for 16 minutes, slowly adding the visible light catalytic nano titanium dioxide inwards, increasing the rotating speed to 1600r/min, dispersing at a high speed for 16 minutes, reducing the rotating speed to 800r/min, adding the preservative inwards, and dispersing uniformly to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of defoaming agent, stirring and dispersing uniformly at the speed of 600r/min, slowly adding the thickening agent accounting for 70% of the total volume of the thickening agent inwards, dispersing for 16 minutes, then increasing the rotating speed to 1400r/min, and continuing to disperse for 16 minutes; then adding pigment, common filler and porous filler into the mixture, and dispersing the mixture at a high speed of 1600r/min for 16 minutes; when the fineness reaches 55 mu m, reducing the rotating speed to 800 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the residual defoamer are sequentially added inwards, the residual thickener is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
Example 8
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
25 parts of deionized water
0.4 portion of dispersant
0.2 portion of alkaline pH regulator
0.1 part of wetting agent
10 portions of pigment
10 portions of common filler
20 portions of porous filler
Visible light catalytic nano titanium dioxide prefabricated stock solution 5 parts
16 parts of emulsion
Inorganic component 8 parts
Antifreeze agent 1.5 parts
Film-forming assistant 1.5 parts
Thickener 1.4 parts
0.2 portion of defoaming agent
0.4 portion of preservative
0.3 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
18.1 parts of deionized water
8 parts of sodium salt dispersant
Wetting agent 2 parts
0.2 portion of alkaline pH regulator
Visible light catalytic nano titanium dioxide 70 parts
1 part of thickening agent
0.2 portion of defoaming agent
0.5 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is long-chain alkyl polyoxyethylene ether;
the dispersant is a hydrophobic modified ammonium salt dispersant;
the thickening agent is a hydrophobic modified alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is MA-95;
the emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Iseman OE 400;
the pigment is rutile titanium dioxide;
the common filler is any combination of mica powder and wollastonite;
the porous filler is diatomite;
the inorganic component is potassium silicate;
the defoaming agent is a mineral oil modified defoaming agent.
The preservative is CIT;
the mildew preventive is IPBC.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 2.0 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is a polyurethane thickening agent;
the alkaline pH regulator is MA-95;
the defoaming agent is a mineral oil modified defoaming agent;
the preservative was MIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 400r/min for 4 minutes, slowly adding the thickening agent inwards after stirring, then dispersing for 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1400r/min for high-speed dispersion for 10 minutes, then reducing the rotating speed to 600r/min, adding the preservative inwards, and uniformly dispersing to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of defoaming agent, stirring and dispersing uniformly at the speed of 600r/min, slowly adding the thickening agent accounting for 80% of the total volume of the thickening agent inwards, dispersing for 10 minutes, then increasing the rotating speed to 1400r/min, and continuing to disperse for 10 minutes; then adding pigment, common filler and porous filler into the mixture, and dispersing the mixture at a high speed of 1600r/min for 15 minutes; when the fineness reaches 55 mu m, reducing the rotating speed to 800 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the residual defoamer are sequentially added inwards, the residual thickener is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
Example 9
The invention relates to an organic-inorganic composite interior wall coating with a visible light catalytic effect, which is mainly prepared from the following components in parts by weight:
19.7 parts of deionized water
0.5 part of dispersant
0.1 part of alkaline pH regulator
0.5 part of wetting agent
18 portions of pigment
11 portions of common filler
10 portions of porous filler
6 parts of visible light catalytic nano titanium dioxide prefabricated stock solution
18 portions of emulsion
10 portions of inorganic component
2 parts of antifreeze agent
Film-forming assistant 2 parts
0.8 part of thickening agent
0.4 portion of defoaming agent
0.4 portion of preservative
0.6 part of a mildew preventive;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
26.9 portions of deionized water
2 parts of sodium salt dispersant
Wetting agent 5 parts
0.1 part of alkaline pH regulator
Visible light catalytic nano titanium dioxide 65 parts
0.5 part of thickening agent
0.4 portion of defoaming agent
0.1 part of preservative;
the organic-inorganic composite interior wall coating comprises the following components:
the wetting agent is long-chain alkyl polyoxyethylene ether;
the dispersant is a hydrophobic modified sodium salt dispersant;
the thickening agent is a hydrophobic modified alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is
BS 168；
The emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Ismann OE 300;
the pigment is rutile titanium dioxide;
the common filler is mica powder;
the porous filler is calcined soil;
the inorganic component is potassium silicate;
the defoaming agent is a mineral oil modified defoaming agent.
The preservative is CIT;
the mildew preventive is IPBC.
The visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the visible light catalytic nano titanium dioxide is spherical porous modified titanium dioxide photocatalyst with the particle size of 1.0 um;
the wetting agent is a hydrophilic surfactant;
the thickening agent is an alkali swelling acrylic acid thickening agent;
the alkaline pH regulator is
BS 168；
The defoaming agent is a mineral oil modified defoaming agent;
the preservative is CIT.
The preparation method of the organic-inorganic composite interior wall coating with the visible light catalytic effect comprises the following steps of:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the deionized water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 400r/min for 4 minutes, slowly adding the thickening agent inwards after stirring, then dispersing for 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1600r/min for high-speed dispersion for 10 minutes, then reducing the rotating speed to 600r/min, adding the preservative inwards, and uniformly dispersing to obtain a visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the deionized water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of defoaming agent, stirring and dispersing uniformly at the speed of 400r/min, slowly adding the thickening agent accounting for 70% of the total volume of the thickening agent inwards, dispersing for 10 minutes, then increasing the rotating speed to 1000r/min, and continuing to disperse for 10 minutes; then adding pigment, common filler and porous filler into the mixture, and dispersing the mixture at a high speed of 1600r/min for 15 minutes; when the fineness reaches 45 mu m, reducing the rotating speed to 800 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze, the mildew preventive, the preservative and the residual defoamer are sequentially added inwards, the residual thickener is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
The information of raw materials and equipment related to the scheme is as follows:
the organic-inorganic composite interior wall coating comprises the following components in percentage by weight:
the alkaline pH regulator is of Wacker chemistry
BS 168, modesty MA-95;
the emulsion is Dow SF-208;
the film-forming auxiliary agent is Ismann OE400, Ismann OE300 and Dow 290 Plus;
the pigment is python R-996 titanium dioxide;
the common filler is 800 meshes of coarse whiting, Guangyuan HS-218 talcum powder, Rui GM-900 mica powder and Kote KT0018 wollastonite;
the porous filler is inner Mongolia super DG-80 calcined soil, Japanese Showa ray F diatomite;
the inorganic group comprises Xiamen Peteng 1010 potassium silicate and Xiamen Peteng S100 silica sol;
the wetting agent is Dow CF-10, Digao TEGO 740W;
the dispersant is 731A, CA-2500 in Rohm and Haas;
the antifreeze agent is Polyglykol 300 of Kelaien;
the antifoam being of the basf type
ST 2410, 309A of nopinaceae;
the thickener is Dow TT-615 and RM-8W;
the antiseptic is R-S of Torrel and PROXEL CMC of Dragon sand;
the mildew inhibitor is ZOE of Dragon sand, IPW40 of Trojan;
in the visible light catalytic nano titanium dioxide prefabricated stock solution:
the antiseptic is R-S of Torrel and PROXEL CMC of Dragon sand;
the wetting agent is GENAPOL X1005 of clariant;
the sodium salt dispersant is SN5040 of Nopocladia;
the thickener is Tao's ASE60, RM-2020;
the alkaline pH regulator is of Wacker chemistry
BS 168, modesty MA-95;
the antifoam being of the basf type
ST 2410, 309A of nopinaceae;
equipment:
a dispersion machine: shanghai modern, SFJ-400
Electronic scale: sidolis, BSA3202
Experimental data:
comparative sample 1: the preparation method of the common visible light catalytic interior wall coating (organic coating) comprises the following steps: accurately weighing 23.5 parts of deionized water, 0.4 part of ammonium salt dispersant, 0.1 part of MA-950.1 parts of alkyl polyoxyethylene ether and 0.1 part of mineral oil modified defoaming agent, stirring at the speed of 500r/min under a dispersion machine, slowly adding 1 part of polyurethane thickener, dispersing for 10 minutes, increasing the rotating speed to 1200r/min, and continuing to disperse for 10 minutes; adding 16 parts of pigment, 22 parts of common filler, 10 parts of porous filler and 4.2 parts of visible light catalytic nano titanium dioxide, and dispersing at a high speed for 15 minutes at a rotating speed of 1500 r/min; when the fineness reaches 50 mu m, the rotating speed is reduced to 700r/min, and at the moment, 19 parts of emulsion, 4001.2 parts of OE, 1.5 parts of polyethylene glycol, 0.5 part of ZnPT, 0.3 part of CIT and 0.1 part of mineral oil modified defoaming agent are added and uniformly dispersed.
Comparative sample 2: the preparation method of the common inorganic paint for the interior wall comprises the following steps: accurately weighing 27 parts of deionized water, 0.6 part of sodium salt dispersant, 0.4 part of alkyl polyoxyethylene ether and 0.4 part of mineral oil modified defoaming agent, stirring at the speed of 500r/min under a dispersion machine, slowly adding 1.3 parts of polyurethane thickener, after dispersing for 10 minutes, increasing the rotating speed to 1200r/min, and continuing to disperse for 10 minutes; adding 43 parts of pigment and filler, dispersing at high speed for 15 minutes at the rotating speed of 1500 r/min; when the fineness reaches 50 mu m, the rotating speed is reduced to 700r/min, and then 7 parts of emulsion, 20 parts of potassium silicate and 0.3 part of mineral oil modified defoaming agent are added and uniformly dispersed.
Firstly, detecting the visible light catalytic efficiency and the physical property of a paint film:
TABLE 1 Table of the results of the visible light catalytic efficiency, environmental protection performance and physical properties of paint film
Therefore, the paint has higher efficiency of removing methyl mercaptan, nitrogen oxide, formaldehyde, toluene and other harmful gases in the air and better washing resistance.
Secondly, coating dusting and embrittlement detection
(1) The coatings of each example were roll coated on a asbestos-free cement flat plate of 200mm X150 mm X (4-6) mm to obtain sample a.
Sample b was obtained by roll coating control 2 paint on a asbestos-free cement flat plate of 200mm X150 mm X (4-6) mm. The applied amount of both samples remained the same.
And (3) placing the samples a and b at the temperature of 5 ℃ for curing for 1 day, taking out the samples, wiping the samples by using black cloth, and observing the powder dropping condition.
TABLE 2 coating low-temp. dusting test table
| Low temperature dusting test | |
| Sample b (control 2) | Much powder fall |
| Sample a (example 1) | Slight dusting |
| Sample a (example 2) | Slight dusting |
| Sample a (example 3) | Slight dusting |
| Sample a (example 4) | Slight dusting |
| Sample a (example 5) | Slight dusting |
| Sample a (example 6) | Slight dusting |
| Sample a (example 7) | Slight dusting |
| Sample a (example 8) | Slight dusting |
| Sample a (example 9) | Slight dusting |
(2) The paint of each example and the paint of the comparative sample 2 are scraped on the same card paper by a 120-micrometer wire rod pair, the card paper is cured for 1 day at normal temperature, the card paper is bent after the curing is finished, a paint film of the paint of the comparative sample 2 is cracked, and the paint film of the paint of each example has no abnormality.
Therefore, the paint film of the paint is not easy to embrittle.
Third, ultraviolet aging resistance test of coating
A coating material of example 1 was applied to a non-asbestos cement plate of 150 mm. times.70 mm. times. (4-6) mm, and the plate was cured at room temperature for 3 days to obtain sample A.
A coating material of example 2 was applied to a non-asbestos cement plate of 150 mm. times.70 mm. times. (4-6) mm, and the plate was cured at room temperature for 3 days to obtain sample B.
A coating material of example 3 was applied to a non-asbestos cement plate of 150 mm. times.70 mm. times. (4-6) mm, and the plate was cured at room temperature for 3 days to obtain sample C.
A coating material of example 4 was applied to a non-asbestos cement plate of 150 mm. times.70 mm. times. (4-6) mm, and the plate was cured at room temperature for 3 days to obtain sample D.
A coating material of example 5 was applied to a non-asbestos cement plate of 150 mm. times.70 mm. times. (4-6) mm, and the plate was cured at room temperature for 3 days to obtain sample E.
A coating material of example 6 was applied to a non-asbestos cement plate of 150 mm. times.70 mm. times. (4-6) mm, and the plate was cured at room temperature for 3 days to obtain sample F.
A coating material of example 7 was applied to a non-asbestos cement plate of 150 mm. times.70 mm. times. (4-6) mm, and the plate was cured at room temperature for 3 days to obtain sample G.
A coating material of example 8 was formed into a film on a asbestos-free cement plate having a thickness of 150 mm. times.70 mm. times. (4-6) mm, and the film was cured at room temperature for 3 days to obtain sample H.
A coating of example 9 was applied to a non-asbestos cement plate of 150 mm. times.70 mm. times. (4-6) mm in thickness to form a film, which was then cured at room temperature for 3 days to obtain sample I.
A coating material of comparative sample 1 was applied to a non-asbestos cement plate having a thickness of 150 mm. times.70 mm. times.4-6 mm, and the plate was cured at room temperature for 3 days to obtain sample J.
The above film-forming method: and (3) one-time film preparation of the 120um wire rod, 6 hours later, one-time film preparation of the 80um wire rod, and normal-temperature maintenance for 3 days.
TABLE 3 ultraviolet aging resistance tester for coating
Therefore, the ultraviolet light aging resistance of the paint film of the paint is better.
In conclusion, the photocatalytic efficiency, the paint film physical property and the ultraviolet light aging resistance of the paint are better, and the paint film is less prone to embrittlement.
The organic-inorganic composite interior wall coating with visible light catalytic effect and the preparation method thereof according to the present invention are not limited to the above-mentioned embodiments, and any modification or replacement according to the principle of the present invention should be within the protection scope of the present invention.
Claims (9)
1. An organic-inorganic composite interior wall coating with a visible light catalytic effect is characterized in that: the adhesive is mainly prepared from the following components in parts by weight:
15-25 parts of water, namely,
0.4 to 0.8 portion of dispersant,
0.1 to 0.5 portion of alkaline pH regulator,
0.1 to 0.5 portion of wetting agent,
10-18 parts of a pigment, namely,
10-21 parts of common filler,
10-25 parts of a porous filler,
4-10 parts of visible light catalytic nano titanium dioxide prefabricated stock solution,
12-18 parts of an emulsion,
4-15 parts of an inorganic component,
1-2 parts of an antifreeze agent,
1-2 parts of a film-forming auxiliary agent,
0.8 to 1.4 portions of thickening agent,
0.2-0.4 part of defoaming agent;
the wetting agent is one or any combination of two of long-chain alkyl polyoxyethylene ether or nonionic modified fatty acid derivatives;
the dispersant is one or any combination of two of a hydrophobic modified sodium salt dispersant or a hydrophobic modified ammonium salt dispersant;
the thickening agent is one or any combination of two of a hydrophobic modified alkali swelling acrylic acid thickening agent or a hydrophobic modified polyurethane thickening agent;
the inorganic component is one or any combination of two of potassium silicate and silica sol;
the visible light catalytic nano titanium dioxide prefabricated stock solution is mainly prepared from the following components in parts by weight:
15-29.5 parts of water,
2-8 parts of a sodium salt dispersing agent,
2-5 parts of a wetting agent,
0.1 to 0.2 portion of alkaline pH regulator,
55-75 parts of visible light catalytic nano titanium dioxide,
0.5 to 1.5 portions of thickening agent,
0.2-0.4 part of defoaming agent;
in the visible light catalytic nano titanium dioxide prefabricated stock solution, the visible light catalytic nano titanium dioxide is a spherical porous modified titanium dioxide photocatalyst with the particle size of 1.0-2.0um, and the wetting agent is a hydrophilic surfactant.
2. The organic-inorganic composite interior wall coating material with visible light catalytic effect according to claim 1, characterized in that: the organic-inorganic composite interior wall coating comprises the following components:
the alkaline pH regulator is
Any combination of one or two of BS 168 or MA-95;
the emulsion is styrene-acrylic emulsion;
the film-forming auxiliary agent is Iseman OE400, Iseman OE300 or Dow 290 Plus;
the pigment is rutile titanium dioxide;
the common filler is one or any combination of more than two of heavy calcium, talcum powder, mica powder and wollastonite;
the porous filler is one or any combination of calcined soil and diatomite;
the defoaming agent is one or any combination of mineral oil modified defoaming agent and silicon dioxide defoaming agent.
3. The organic-inorganic composite interior wall coating material with visible light catalytic effect according to claim 1, characterized in that: the visible light catalytic nano titanium dioxide prefabricated stock solution comprises the following components:
the thickening agent is one or any combination of two of alkali swelling acrylic acid thickening agent and polyurethane thickening agent;
the alkaline pH regulator is
Any combination of one or two of BS 168 or MA-95;
the defoaming agent is one or any combination of mineral oil modified defoaming agent and silicon dioxide defoaming agent.
4. The organic-inorganic composite interior wall coating material with visible light catalytic effect according to claim 1, characterized in that: the organic-inorganic composite interior wall coating further comprises:
0.2 to 0.4 portion of preservative
0.3-0.6 part of mildew preventive.
5. The organic-inorganic composite interior wall coating material with visible light catalytic effect according to claim 4, characterized in that: the organic-inorganic composite interior wall coating comprises the following components in percentage by weight:
the preservative is CIT or MIT or any combination of two of CIT and MIT;
the mildew preventive is one or any combination of ZnPT or IPBC.
6. The organic-inorganic composite interior wall coating material with visible light catalytic effect according to claim 1, characterized in that: the visible light catalytic nano titanium dioxide prefabricated stock solution further comprises:
0.1-0.5 part of preservative.
7. The organic-inorganic composite interior wall coating material with visible light catalytic effect according to claim 6, characterized in that: in the visible light catalytic nano titanium dioxide prefabricated stock solution: the preservative is CIT or MIT or any combination of the two.
8. The method for preparing the organic-inorganic composite interior wall coating material with visible light catalytic effect according to any one of claims 1 to 7, wherein the method comprises the following steps: comprises the following steps which are carried out in sequence:
preparing a visible light catalytic nano titanium dioxide prefabricated stock solution:
mixing the water, the sodium salt dispersant, the wetting agent, the alkaline pH regulator and the defoaming agent, dispersing and stirring at the rotating speed of 400-600r/min for 4-6 minutes, slowly adding the thickening agent inwards after stirring, then dispersing for at least 10 minutes, then slowly adding the visible light catalytic nano titanium dioxide inwards, then increasing the rotating speed to 1400-1600r/min for high-speed dispersion for at least 10 minutes, then reducing the rotating speed to 600-800r/min, and uniformly dispersing to obtain the visible light catalytic nano titanium dioxide prefabricated stock solution;
(II) preparing the organic-inorganic composite interior wall coating with the visible light catalytic effect:
mixing the water, the dispersing agent, the alkaline pH regulator, the wetting agent and a part of the defoaming agent, stirring and dispersing uniformly at the speed of 600r/min 400-; then adding pigment, common filler and porous filler, and dispersing at a high speed of 1400-1600r/min for at least 15 minutes; when the fineness reaches 45-55 μm, the rotating speed is reduced to 800 r/min; then, the emulsion, the visible light catalytic nano titanium dioxide prefabricated stock solution, the inorganic component, the film forming additive, the antifreeze and the rest of the defoaming agent are sequentially added inwards, the rest of the thickening agent is slowly added, and the organic-inorganic composite interior wall coating with the visible light catalytic effect is obtained after uniform dispersion.
9. The method for preparing the organic-inorganic composite interior wall coating with visible light catalytic effect according to claim 8, wherein the method comprises the following steps: and (3) after the rotating speed is reduced to 600-800r/min in the step (I), adding a preservative in the visible light catalytic nano titanium dioxide prefabricated stock solution formula in the dispersing process, and adding a mildew preventive and a preservative in the organic-inorganic composite interior wall coating formula with the visible light catalytic effect before the defoamer is added in the step (II).
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| CN115477863A (en) * | 2021-06-16 | 2022-12-16 | 广东顺德三和化工有限公司 | Self-cleaning inorganic coating and preparation method thereof |
| CN116535911A (en) * | 2023-05-04 | 2023-08-04 | 浙江绿色德环保科技股份有限公司 | Visible light photocatalyst coating and preparation method thereof |
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Application publication date: 20210202 |