CN107793852B - Environment-friendly latex paint taking ceramic polishing waste residues as regenerated filler and preparation method thereof - Google Patents

Environment-friendly latex paint taking ceramic polishing waste residues as regenerated filler and preparation method thereof Download PDF

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CN107793852B
CN107793852B CN201711171148.1A CN201711171148A CN107793852B CN 107793852 B CN107793852 B CN 107793852B CN 201711171148 A CN201711171148 A CN 201711171148A CN 107793852 B CN107793852 B CN 107793852B
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polishing waste
ceramic polishing
waste residue
filler
environment
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CN107793852A (en
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郭艳平
李保庆
王丽娜
赵由才
任杰
韩金岑
林锦军
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Guangdong Vocational College of Environmental Protection Engineering
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Guangdong Vocational College of Environmental Protection Engineering
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D125/04—Homopolymers or copolymers of styrene
    • C09D125/08—Copolymers of styrene
    • C09D125/14—Copolymers of styrene with unsaturated esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C—CHEMISTRY; METALLURGY
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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
    • C09D143/00—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 containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
    • C09D143/04—Homopolymers or copolymers of monomers containing silicon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C09D5/028—Pigments; Filters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/05—Alcohols; Metal alcoholates
    • C08K5/053—Polyhydroxylic alcohols
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The invention provides an environment-friendly latex paint taking ceramic polishing waste residues as a regenerated filler and a preparation method thereof, and relates to the technical field of environmental protection. An environment-friendly latex paint taking ceramic polishing waste residue as a regenerated filler comprises the following raw materials in percentage by weight: 10-50% of ceramic polishing waste residue, 10-50% of emulsion, 0-28% of pigment and filler, 1-21.5% of additive and the balance of water. The emulsion paint has the advantages of resource saving, cost reduction, safety, environmental protection, good chemical and mechanical properties of acid and alkali resistance, brushing resistance, wear resistance and the like, wide application range and good application prospect. A method for preparing environment-friendly latex paint by taking ceramic polishing waste residues as regenerated fillers comprises the following steps: and (3) sanding and pulping the ceramic polishing waste residue, the pigment and filler, the additive and water, and then adding the emulsion for blending. The method has the advantages of simple preparation process, strong controllability and low preparation cost, and is suitable for large-scale production.

Description

Environment-friendly latex paint taking ceramic polishing waste residues as regenerated filler and preparation method thereof
Technical Field
The invention relates to the technical field of environmental protection, and in particular relates to an environment-friendly latex paint taking ceramic polishing waste residues as a regenerated filler and a preparation method thereof.
Background
In the field of building coatings, emulsion paint is a water-based coating prepared by adding pigment, filler and various auxiliaries into synthetic resin emulsion serving as a base material, has simple preparation process, convenient construction and small environmental pollution, and is more and more favored by the market. The filler is used as an extender pigment of the latex paint, mainly plays a role in skeleton structure and improvement of paint performance, and accounts for about 20-40% of the components of the latex paint. At present, most of latex paint products in the market adopt mineral substances such as heavy calcium carbonate, light calcium carbonate, talcum powder, wollastonite powder, sericite powder, quartz powder and the like as fillers. The mining and processing of these mineral raw materials is irreparable from the environmental and natural resources.
During the process of polishing and burnishing the building ceramics, a large amount of ceramic polishing waste residues are generated. On a dry basis, about 2.1kg of solid waste is generated every square meter of polished tile is produced. The annual output of ceramic polished tiles in China reaches over hundreds of millions of squares, so that the quantity of ceramic polished waste residues generated every year is staggering. Due to the problems of limitation of production technology and the like, the large-scale recycling rate of the waste residues is very low, more than 90% of the waste residues are not efficiently utilized at present, the waste residues are mainly buried after simple dehydration, potential risks are caused to the environment, and the development of the ceramic industry is greatly restricted. For example, the ceramic solid waste treatment center in a certain area dehydrates or simply treats the collected ceramic waste slurry, and then the ceramic waste slurry is sold as a substitute raw material for producing building materials, including producing ash bricks, glazed bricks, ceramic tiles, perforated bricks, cement and the like. However, in these approaches, the utilization amount of the whole waste residue is not large, the enterprise profit is low, and the treatment capacity is difficult to be improved because the application ratio of the waste residue is low and the added value of the product is low, so that a large amount of dehydrated waste residue is often accumulated, land resources are occupied, and the surrounding environment is seriously affected. Therefore, the problem of diversified and large-scale comprehensive utilization of resources of ceramic polishing waste residues in China is urgently needed to be solved.
Disclosure of Invention
The invention aims to provide the environment-friendly latex paint taking the ceramic polishing waste residues as the regenerated filler, which saves resources, reduces cost, is safe and environment-friendly, has better chemical and mechanical properties such as acid and alkali resistance, scrubbing resistance, wear resistance and the like, has wide application range and better application prospect.
The invention also aims to provide a preparation method of the environment-friendly latex paint with the ceramic polishing waste residues as the regenerated filler, which has the advantages of simple preparation process, strong controllability and low preparation cost and is suitable for large-scale production.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
The invention provides an environment-friendly latex paint taking ceramic polishing waste residues as a regenerated filler, which is prepared from the following raw materials in percentage by weight: 10-50% of ceramic polishing waste residue, 10-50% of emulsion, 0-28% of pigment and filler, 1-21.5% of additive and the balance of water.
The invention provides a preparation method of environment-friendly latex paint taking ceramic polishing waste residues as regenerated fillers, which comprises the following steps: and (3) sanding and pulping the ceramic polishing waste residue, the pigment and filler, the additive and water, and then adding the emulsion for blending.
The environment-friendly latex paint taking ceramic polishing waste residues as the regenerated filler and the preparation method thereof have the beneficial effects that:
the environment-friendly latex paint taking the ceramic polishing waste residues as the regenerated filler provided by the invention uses the ceramic polishing waste residues to replace mineral fillers as a regenerated raw material, reasonably utilizes wastes, saves resources, reduces the cost and protects the environment. The ceramic polishing waste residue is derived from a ceramic material containing a crystalline phase after high-temperature treatment at more than 1 thousand ℃, and has the characteristics of high hardness, high strength, stable physicochemical property and the like. After the grinding and polishing procedures of the ceramic production process, the obtained polishing slag has small primary particle size and is of an irregular amorphous sheet structure. After the sanding process for preparing the emulsion paint, the ceramic polishing slag particles are easy to be further refined and homogenized into a sheet structure with a smooth surface, the particle size dispersity is reduced, the emulsion paint is beneficial to forming a film and covering an action surface, the emulsion paint is prevented from chapping and is delayed to be pulverized, the strength and the hardness of the emulsion paint are improved, the chemical and mechanical properties of the emulsion paint, such as acid and alkali resistance, brushing resistance, wear resistance and the like, are enhanced, and the produced environment-friendly emulsion paint has a better application prospect.
The preparation method of the environment-friendly latex paint with the ceramic polishing waste residue as the regenerated filler is simple in preparation process, and can adopt conventional latex paint production process equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
FIG. 1 is a scanning electron microscope photograph of a ceramic polishing waste residue provided in an embodiment of the present invention;
FIG. 2 is a scanning electron microscope photograph of ceramic polishing waste provided by an embodiment of the present invention;
fig. 3 is a scanning electron microscope image of the ceramic polishing slag provided by the embodiment of the invention after being sanded for 20 min.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The following describes an environment-friendly latex paint using ceramic polishing waste residue as a regenerated filler and a preparation method thereof.
The embodiment of the invention provides an environment-friendly latex paint with ceramic polishing waste residues as regenerated fillers, which comprises the following raw materials in percentage by weight: 10-50% of ceramic polishing waste residue, 10-50% of emulsion, 0-28% of pigment and filler, 1-21.5% of additive and the balance of water. The ceramic polishing waste residue can be 15%, 21%, 36% or 41%, the emulsion can be 35%, 25%, 18% or 30%, the pigment and filler can be 4%, 27%, 26% or 3.5%, and the additive can be 6.6%, 2.1%, 1.9% or 3.2%.
Further, in a preferred embodiment of the present invention, the raw materials comprise, by weight: 20-40% of ceramic polishing waste residues, 20-40% of emulsion, 5-25% of pigment and filler, 5-17% of additive and the balance of water. Preferably, the ceramic polishing waste residue can be 24%, 27%, 31%, 36%, the emulsion can be 28%, 25%, 22%, 20%, the pigment and filler can be 5.5%, 8.5%, 10.5%, 14.2%, and the additive can be 8.6%, 12.2%, 8.7%, 5.5%.
TABLE 1 ceramic polishing pad chemistry (%)
Figure BDA0001474961890000051
TABLE 2 ceramic polishing slag phase composition (semi-quantitative%)
Figure BDA0001474961890000052
As can be seen from tables 1 and 2, the ceramic polishing waste residue provided by the present invention mainly contains chemical components such as silicon oxide, aluminum oxide, etc., and the main crystal phase substance is quartz. The ceramic polishing waste residue is a ceramic material containing a crystalline phase and obtained by high-temperature treatment at more than 1 thousand ℃, and has high hardness, high strength and stable physicochemical properties. After the grinding and polishing procedures of the ceramic production process, the obtained waste slag particles have small particle size. According to the statistical result of particle size analysis, 90% of the ceramic polishing waste residues have particle sizes not larger than 50-120 microns, 50% of the ceramic polishing waste residues have particle sizes not larger than 30-50 microns, 10% of the ceramic polishing waste residues have particle sizes not larger than 1-10 microns, and the average particle size is 10-50 microns. The specific surface area is more than 800m2The whiteness is between 80 and 92 per kg.
The ceramic polishing waste residues are used as a filler for the emulsion paint, and after the sand grinding process for preparing the emulsion paint, the polishing waste residues are easy to further refine and homogenize into a sheet structure with a smooth and flat surface, and the particle size dispersity is reduced. The sheet structure is beneficial to film formation of the latex paint, covers the action surface, prevents chapping of the latex paint, delays pulverization, improves the strength and hardness of the latex paint, and enhances the chemical and mechanical properties of acid and alkali resistance, brushing resistance, wear resistance and the like. And the ceramic polishing waste residue is alkaline, which is beneficial to the stability of an emulsion paint system, and the produced emulsion paint product has better application prospect.
The ceramic polishing waste residue and the sanding slurry particles thereof provided by the invention are subjected to microscopic morphology test. As can be seen from FIGS. 1 and 2, the raw ceramic polishing waste residue provided by the present invention has an irregular amorphous sheet-like structure; as can be seen from FIG. 3, the ceramic polishing waste residue provided by the present invention is uniform after 20min sanding, and the particles thereof are of a sheet structure with a flat and smooth surface. Compared with the spherical and needle structure, the sheet structure is beneficial to film formation of the latex paint, covers the action surface, prevents chapping of the latex paint, delays pulverization, improves the strength and hardness of the latex paint, improves the performance and expands the application range.
The emulsion has direct influence on the quality of the emulsion paint. The emulsion plays a role in increasing the strength of the coating and improving the times of smearing and scrubbing resistance in the emulsion paint. In the invention, the types and the proportions of the emulsion, the ceramic polishing waste residues and various additives are all researched by experiments, so that the compatibility of the raw materials is good, and the performance of the prepared emulsion paint is good. In the embodiment of the invention, styrene-acrylic emulsion, pure acrylic emulsion, silicone acrylic emulsion and the like are mainly selected.
Pigment fillers are an important component of latex paints. In order to meet different requirements, emulsion paints have multiple colors, and pigments are required to be added into the emulsion paints to endow different colors, so that decoration and protection are realized. In this embodiment, the pigment includes conventional inorganic or organic pigments such as titanium dioxide, fluorescent whitening agent, ultramarine, phthalocyanine blue, and zinc chrome, and is used singly or in combination.
The filler is also called extender pigment, which can reduce the use of expensive pigment, reduce the cost, increase the strength of the coating and improve the performance of the coating. The commonly used latex paint filler is mainly mineral filler such as heavy calcium carbonate, light calcium carbonate, wollastonite powder, sericite powder, quartz powder and the like. Because the mining and processing of the mineral filler can damage the environment and natural resources, the ceramic polishing waste residue is adopted to replace the mineral filler. When other common mineral fillers are properly reduced and replaced by ceramic polishing waste residues, the performance of the latex paint can be enhanced. In the invention, the mineral filler comprises talcum powder, calcined kaolin, mica powder, heavy calcium carbonate, light calcium carbonate and the like, and is used singly or compositely.
In the preparation process of the latex paint, different additives are added according to actual needs to achieve the required performance. In a preferred embodiment of the present invention, the additive includes any one or at least two of a thickener, a dispersant, an antifoaming agent, an antiseptic and antifungal agent, a film-forming aid, a leveling agent, and a pH adjuster.
The thickener is used as an important additive in the latex paint, is mainly used for improving and increasing the viscosity of the latex paint, keeps certain rheological property, prevents the sagging phenomenon in construction, and endows the latex paint with excellent mechanical property and storage stability. In the embodiment of the invention, the thickening agent is selected from polyurethane thickening agent, alkali swelling thickening agent, cellulose thickening agent and the like, and is added singly or compositely.
The dispersing agent reduces the dispersion time of raw materials, stabilizes the dispersion, and has the effects of reducing flocculation, enhancing stability, improving gloss and increasing color development. In the embodiment of the present invention, the dispersant includes an anionic dispersant, a nonionic dispersant, a hydrophobic dispersant, and the like.
When the emulsion paint is used in the aspects of buildings and the like, the emulsion paint needs to have the performances of corrosion resistance and mildew resistance, and the corrosion of corrosive substances such as chemical substances and the like and the corrosion of mildew on a coating body are avoided. In the embodiment of the invention, the additive also comprises an antiseptic and mildew-proof agent such as isothiazolone, benzothiazolinone and derivatives thereof and the like so as to improve the performance of the emulsion paint.
The film-forming assistant is used as one of important additives in the latex paint, so that the latex paint achieves the construction performance and the film-forming quality. The latex paint has a complicated film-forming process, so that the dispersed polymer particles are mutually agglomerated into a whole. The film-forming assistant promotes the plastic flow and elastic deformation of latex particles, softens the surfaces of the particles, promotes the polymer particles to be easily pressed and deformed, and fuses to form a film; the film-forming assistant can lower the lowest film-forming temperature of emulsion and latex paint. In the embodiment of the invention, the film-forming auxiliary agent is selected from an alcohol ester film-forming agent, an alcohol ether film-forming agent, propylene glycol, ethylene glycol and the like, and is used singly or compositely.
In the construction process, the leveling property of the emulsion paint is poor, brush marks and orange peels can appear during brushing/spraying, and shrinkage, pinholes, sagging and other phenomena can appear in the drying process. An effective way to overcome the disadvantage of poor leveling is to add leveling agents. In the embodiment of the invention, the organic silicon modified leveling agent, the acrylic leveling agent, the polyurethane rheological additive and the like are mainly selected and used singly or compositely.
The pH regulator is used for regulating the pH value of the emulsion paint, increasing the stability of the emulsion paint and having the functions of moistening and dispersing. In embodiments of the present invention, the pH adjusting agent includes an organic amine adjusting agent, an Amp-95pH adjusting agent, and the like.
In order to enable the prepared emulsion paint to have excellent mechanical properties and chemical properties, through experimental study of the inventor, the pigment and filler comprise 0-8% of pigment and at least one of 0-20% of mineral filler, and the additive comprises 0.2-3.2% of thickening agent, 0.3-4% of dispersing agent, 0.2-3% of defoaming agent, 0.1-3% of anti-corrosion and anti-mildew agent, 0.1-6% of film-forming assistant, 0.1-2% of flatting agent and 0-0.3% of pH regulator.
The embodiment of the invention also provides a preparation method of the environment-friendly latex paint taking the ceramic polishing waste residue as the regenerated filler, which comprises the following steps:
fully mixing and stirring 1/2-4/5 of water, part of thickening agent, dispersing agent, 1/2-3/4 of defoaming agent and antiseptic and mildew-proof agent which are measured in advance for 0-20 min at the stirring speed of 500-800 rpm.
After being stirred evenly, the ceramic polishing waste residue and the pigment are added. In the embodiment of the invention, mineral filler can be added, and the mixture is dispersed for 0-40 min at the stirring speed of 800-1500 rpm to obtain a coarse dispersion liquid.
And adding the coarse dispersion liquid into a sand mill to be ground for 5-60 min, wherein the rotating speed of a motor of a grinding cavity is 1000-3000 rpm. Preferably, the particle size of the grinding beads is 0.3 to 3.0mm for sufficient grinding. The smaller the abrasive bead size, the smaller the particle size of the abrasive slurry particles. And testing the fineness, preferably the fineness is below 40 mu m, and obtaining the pigment filler slurry with uniform dispersion.
And slowly adding metered emulsion, film-forming auxiliary agent and residual defoaming agent into the slurry. And (3) uniformly stirring at a low speed of 300-800 rpm, adding the rest of thickening agent, pH regulator and the rest of water to regulate the viscosity of the system, and uniformly stirring to obtain the emulsion paint sample. Preferably, a certain amount of the leveling agent can be added, and the mass percentage of the leveling agent in the raw materials is 0.1-2%.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The embodiment provides an environment-friendly latex paint taking ceramic polishing waste residue as a regenerated filler, which comprises the following components in percentage by weight:
35% of ceramic polishing waste residue, 25% of styrene-acrylic emulsion, 5% of rutile titanium dioxide, 0.1% of fluorescent whitening agent, 2.2% of propylene glycol, 1.3% of alcohol ester film-forming agent, 0.1% of hydroxyethyl cellulose, 0.8% of anionic dispersant, 0.7% of organic silicon modified defoaming agent, 0.2% of isothiazolone antiseptic and mildew-proof agent, 0.5% of alkali swelling thickening agent, 0.4% of organic silicon modified leveling agent, 0.2% of Amp-95pH regulator and the balance of water.
The preparation method mainly comprises the following steps:
weighing the above measured raw materials, adding hydroxyethyl cellulose, anionic dispersant, isothiazolinone preservative, propylene glycol and 1/2 organosilicon modified defoamer, adding 2/3 of water, and fully mixing at 500rpm for 5 min. And then adding the measured ceramic polishing waste residue, rutile type titanium dioxide and fluorescent whitening agent, and coarsely dispersing at high speed of 1200rpm for 10 min.
And (3) adding the coarse dispersion into a sand mill, grinding for 20min, wherein the grinding bead is 1mm, the rotating speed of a grinding cavity motor is 1500rpm, and the test fineness is below 25 mu m, so as to prepare the uniformly dispersed pigment filler slurry.
Slowly adding the metered styrene-acrylic emulsion, the alcohol ester film-forming agent and the balance defoaming agent into the slurry, uniformly stirring at a low speed of 500rpm, adding the metered alkali swelling thickener, and regulating the viscosity of the system to 85KU by using the organic silicon modified leveling agent, the Amp-95pH regulator and the balance water to prepare the paint sample.
Example 2
The embodiment provides an environment-friendly latex paint taking ceramic polishing waste residue as a regenerated filler, which comprises the following components in percentage by weight:
20% of ceramic polishing waste residue, 30% of styrene-acrylic emulsion, 3% of titanium dioxide, 0.1% of ultramarine, 5% of talcum powder, 5% of calcined kaolin, 2.5% of propylene glycol, 1.5% of alcohol ester film-forming agent, 0.1% of modified hydroxyethyl cellulose, 0.7% of nonionic dispersant, 0.6% of organic silicon defoaming agent, 0.2% of isothiazolinone antiseptic and mildew-proof agent, 0.5% of polyurethane thickening agent, 0.2% of organic amine pH regulator and the balance of water.
The preparation method mainly comprises the following steps:
weighing the above weighed modified hydroxyethyl cellulose, nonionic dispersant, isothiazolone antiseptic and mildew preventive, propylene glycol and 3/4 silicone defoamer, adding 4/5 water, and fully mixing at 400rpm for 10 min. And then adding the measured ceramic polishing waste residue, talcum powder, calcined kaolin, titanium dioxide and ultramarine, and coarsely dispersing for 15min at a high speed of 1200 rpm.
And (3) adding the coarse dispersion into a sand mill, grinding for 10min, wherein the grinding bead is 1mm, the rotating speed of a grinding cavity motor is 1800rpm, and the test fineness is below 30 mu m, so as to prepare the uniformly dispersed pigment filler slurry.
Slowly adding the metered styrene-acrylic emulsion, the alcohol ester film-forming agent and the balance of the defoaming agent into the slurry, uniformly stirring at a low speed of 450rpm, adding the metered polyurethane thickening agent, and regulating the viscosity of the system to 90KU by using the organic amine pH regulator and the balance of water to prepare the paint sample.
Example 3
The embodiment provides an environment-friendly latex paint taking ceramic polishing waste residue as a regenerated filler, which comprises the following components in percentage by weight:
35% of ceramic polishing waste residue, 25% of pure acrylic emulsion, 2% of phthalocyanine blue, 5% of mica powder, 2.0% of ethylene glycol, 1.3% of alcohol ether film-forming agent, 0.6% of associated alkali swelling thickener, 0.7% of hydrophobic dispersant, 0.6% of organosilicon modified defoaming agent, 0.3% of benzothiazolinone, 0.1% of Amp-95pH regulator and the balance of water.
The preparation method mainly comprises the following steps:
weighing the above weighed hydrophobic dispersant, benzothiazolone, ethylene glycol, 3/5 organosilicon modified defoamer and 1/2 associated alkali swelling thickener, adding 3/4 water, and mixing thoroughly at 300rpm for 5 min. Subsequently, the above measured ceramic polishing waste residue, mica powder and phthalocyanine blue were added, and coarsely dispersed at a high speed of 1500rpm for 15 min.
And (3) adding the coarse dispersion liquid into a sand mill, grinding for 15min, wherein the grinding bead is 1.5mm, the rotating speed of a grinding cavity motor is 2000rpm, and the testing fineness is below 35 mu m, so as to prepare the uniformly dispersed pigment filler slurry.
Slowly adding the metered pure acrylic emulsion, the alcohol ether film-forming agent and the balance antifoaming agent into the slurry, uniformly stirring at low speed of 350rpm, adding the metered balance thickening agent, and regulating the viscosity of the system to 85KU by using an Amp-95pH regulator and the balance water to obtain a paint sample.
Example 4
The embodiment provides an environment-friendly latex paint taking ceramic polishing waste residue as a regenerated filler, which comprises the following components in percentage by weight:
30% of ceramic polishing waste residue, 20% of silicone-acrylic emulsion, 4% of zinc chrome yellow, 5% of ground calcium carbonate, 5% of talcum powder, 1.8% of propylene glycol, 1.2% of alcohol ester film-forming agent, 0.1% of hydroxymethyl cellulose, 0.5% of polyurethane thickener, 0.9% of nonionic dispersant, 0.7% of organic silicon defoamer, 0.3% of benzothiazolinone derivative, 0.1% of Amp-95pH regulator and the balance of water.
The preparation method mainly comprises the following steps:
weighing the above metered nonionic dispersant, benzothiazolinone derivative, propylene glycol, 3/4 silicone defoamer and hydroxymethyl cellulose, adding 3/5 of water, and mixing thoroughly at a medium speed of 500rpm for 5 min. Then, the measured ceramic polishing waste residue, heavy calcium carbonate, talcum powder and zinc chrome yellow are added, and coarse dispersion is carried out for 20min at a high speed of 1000 rpm.
And (3) adding the coarse dispersion liquid into a sand mill, grinding for 20min, wherein the grinding bead is 1.5mm, the rotating speed of a grinding cavity motor is 1600rpm, and the test fineness is below 35 mu m, so as to prepare the uniformly dispersed pigment filler slurry.
Slowly adding the metered silicone-acrylic emulsion, the alcohol ester film-forming agent and the balance of the defoaming agent into the slurry, uniformly stirring at a low speed under the condition of 400rpm, adding the metered polyurethane thickener, and regulating the viscosity of the system to 95KU by using an Amp-95pH regulator and the balance of water to prepare the paint sample.
Test examples
The environment-friendly latex paint prepared in the embodiment 1-4 and using the ceramic polishing waste residue as the regenerated filler is selected for performance detection, and the result is as follows:
table 3 results of performance testing
Figure BDA0001474961890000131
As can be seen from Table 3, the environment-friendly latex paints prepared by using the ceramic polishing waste residues as the regenerated fillers provided in examples 1 to 4 have good stability, brushing resistance, acid resistance, alkali resistance and water resistance, good construction performance, short drying time and good appearance. In example 2, example 3 and example 4, most of the mineral filler is replaced by the ceramic polishing waste residue, and all of the mineral filler is replaced by the ceramic polishing waste residue in example 1, according to the test results, the latex paint products prepared in example 1 and example 3 have stronger brushing resistance which is more than 2000 times, and have better performance with the drying time less than two hours.
In conclusion, the environment-friendly latex paint taking the ceramic polishing waste residues as the regenerated filler provided by the invention uses the ceramic polishing waste residues to replace mineral fillers as raw materials, reasonably utilizes wastes, saves resources, reduces the cost and protects the environment. The ceramic polishing waste residue is derived from a ceramic material containing a crystalline phase after high-temperature treatment at more than 1 thousand ℃, and has the characteristics of high hardness, high strength, stable physicochemical property and the like. After the grinding and polishing procedures of the ceramic production process, the obtained polishing slag has small primary particle size and is of an irregular amorphous sheet structure. After the sanding process for preparing the emulsion paint, the ceramic polishing slag particles are easy to be further refined and homogenized into a sheet structure with a smooth surface, the particle size dispersity is reduced, the emulsion paint is beneficial to forming a film and covering an action surface, the emulsion paint is prevented from chapping and is delayed to be pulverized, the strength and the hardness of the emulsion paint are improved, the chemical and mechanical properties of the emulsion paint, such as acid and alkali resistance, brushing resistance, wear resistance and the like, are enhanced, and the produced environment-friendly emulsion paint has a better application prospect.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims (2)

1. The environment-friendly latex paint taking ceramic polishing waste residues as a regenerated filler is characterized in that the environment-friendly latex paint taking the ceramic polishing waste residues as the regenerated filler is prepared from the following raw materials in percentage by weight: 35% of ceramic polishing waste residue, 25% of styrene-acrylic emulsion, 5% of rutile titanium dioxide, 0.1% of fluorescent whitening agent, 2.2% of propylene glycol, 1.3% of alcohol ester film-forming agent, 0.1% of hydroxyethyl cellulose, 0.8% of anionic dispersant, 0.7% of organic silicon modified defoaming agent, 0.2% of isothiazolinone antiseptic and mildew inhibitor, 0.5% of alkali swelling thickener, 0.4% of organic silicon modified leveling agent, 0.2% of Amp-95pH regulator and the balance of water;
the preparation method of the environment-friendly latex paint comprises the following steps: weighing the above measured raw materials, adding 2/3 of water into the hydroxyethyl cellulose, the anionic dispersant, the isothiazolinone preservative, the propylene glycol and the 1/2 organosilicon modified defoamer, and fully mixing for 5min at the rotating speed of 500 rpm; then, adding the measured ceramic polishing waste residue, the rutile type titanium dioxide and the fluorescent whitening agent, and coarsely dispersing at a high speed of 1200rpm for 10 min;
adding the coarse dispersion into a sand mill, grinding for 20min, wherein the grinding bead is 1mm, the rotating speed of a grinding cavity motor is 1500rpm, and the test fineness is below 25 mu m to prepare uniformly dispersed pigment filler slurry; after the ceramic polishing waste residue is subjected to a sanding process, thinning and homogenizing the ceramic polishing waste residue into a flaky structure with a smooth surface;
slowly adding the metered styrene-acrylic emulsion, the alcohol ester film forming agent and the balance of the defoaming agent into the slurry, uniformly stirring at a low speed of 500rpm, adding the metered alkali swelling thickener, and regulating the viscosity of a system to 85KU by using the organic silicon modified leveling agent, the Amp-95pH regulator and the balance of water to prepare a paint sample.
2. The method for preparing the environment-friendly latex paint with the ceramic polishing waste residues as the regenerated filler according to claim 1, which is characterized by comprising the following steps:
weighing the raw materials, adding 2/3 of water into the hydroxyethyl cellulose, the anionic dispersant, the isothiazolinone preservative, the propylene glycol and the organic silicon modified defoaming agent of 1/2, and fully mixing for 5min at the rotating speed of 500 rpm; then, adding the ceramic polishing waste residue, the rutile type titanium dioxide and the fluorescent whitening agent, and coarsely dispersing at a high speed of 1200rpm for 10 min;
adding the coarse dispersion into a sand mill, grinding for 20min, wherein the grinding bead is 1mm, the rotating speed of a grinding cavity motor is 1500rpm, and the test fineness is below 25 mu m to prepare uniformly dispersed pigment filler slurry; after the ceramic polishing waste residue is subjected to a sanding process, thinning and homogenizing the ceramic polishing waste residue into a flaky structure with a smooth surface;
slowly adding the styrene-acrylic emulsion, the alcohol ester film forming agent and the balance of the defoaming agent into the slurry, uniformly stirring at a low speed of 500rpm, adding the alkali swelling thickener, and adjusting the viscosity of the system to 85KU by using the organic silicon modified leveling agent, the Amp-95pH regulator and the balance of water to prepare the paint sample.
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