CN113604119A - Water-based hydrophobic self-cleaning finishing oil and preparation method thereof - Google Patents

Water-based hydrophobic self-cleaning finishing oil and preparation method thereof Download PDF

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Publication number
CN113604119A
CN113604119A CN202110831619.7A CN202110831619A CN113604119A CN 113604119 A CN113604119 A CN 113604119A CN 202110831619 A CN202110831619 A CN 202110831619A CN 113604119 A CN113604119 A CN 113604119A
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agent
resin
water
cleaning
powder
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CN202110831619.7A
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Inventor
史险锋
何静
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Chengdu Presster New Materials Co ltd
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Chengdu Presster New Materials Co ltd
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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
    • 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
    • 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
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C—CHEMISTRY; METALLURGY
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure

Abstract

The invention discloses water-based hydrophobic self-cleaning oil varnish and a preparation method thereof, belonging to the technical field of coatings and comprising the following raw materials in percentage by mass: 50-90% of component resin, 8-20% of functional powder and 1-10% of auxiliary agent, wherein the combined resin is water-based epoxy resin, fluorine modified water-based acrylic resin and M5 inorganic-organic silicon resin; the functional powder is white fluorescent powder, paraffin powder and a thickening agent; the coating disclosed by the invention is completely made of an aqueous material, is safe, environment-friendly and free of peculiar smell, and avoids harm to constructors and users; the electronic transition realizes the automatic stripping and self-cleaning function of the surface charged pollutants by absorbing and releasing light energy; the coating can adapt to the surfaces of various base materials such as metal, glass, concrete, ceramic and the like, has strong adhesive force, weather resistance and rain wash resistance, and has excellent dryness and good adhesive fastness; the light energy is slowly released at night and the sterilization effect is adopted to remove the surface microorganisms and keep the surface of the gloss oil coating smooth, so that the breeding of the microorganisms is prevented from influencing the use.

Description

Water-based hydrophobic self-cleaning finishing oil and preparation method thereof
Technical Field
The invention relates to the technical field of coatings, in particular to water-based hydrophobic self-cleaning finishing oil and a preparation method thereof.
Background
The finishing oil is a coating which is coated on the surface of an object to increase the gloss and improve the protection inner layer. The resin with good film-forming property is dissolved in solvent (medium) to prepare transparent and bright material with certain fluidity and viscosity, and a layer of coating can improve the aesthetic level and other properties of the product. For urban beautification, a layer of varnish is often coated on the surfaces of various building base materials such as metal, glass, concrete, ceramic and the like at present. The performance requirements of the finishing oil for urban buildings generally include hydrophobicity, self-cleaning property, wear resistance and scratch resistance and the like.
The surface hydrophobic technology is a basic technology with wide and deep effects and high practical value, and is widely applied to daily life of people. Methods for enhancing the hydrophobic surface of the coating layer mainly by improving the roughness of the solid surface include a template method, a sol-gel method, a layer-by-layer self-assembly method, chemical deposition, etching, phase separation and the like. The application mechanism of the existing surface hydrophobic coating is that the nano structure of the solid surface plays an important role in the obvious lotus leaf hydrophobic property of the hydrophobic material, and the nano structure can generate a very high contact angle. The sol-gel method takes molecular alkoxide such as silicon, titanium, tin, aluminum or zirconium as a precursor, and the alkoxide and inorganic compounds are solidified through the processes of solution, sol and gel to prepare the nano or nano hybrid material with a three-dimensional network structure, so that the hydrophobic or super-hydrophobic coating is directly prepared.
The hydrophobic self-cleaning gloss oil at the present stage has the following defects of high preparation cost and difficult large-scale preparation; the traditional hydrophobic self-cleaning gloss oil adopts an organic solvent to dissolve and blend solid materials, and after the traditional hydrophobic self-cleaning gloss oil is used and dried in construction, a large amount of organic solvent is volatilized and then enters the atmosphere, so that the environment is polluted, and the health of a human body is influenced; and the prior hydrophobic self-cleaning gloss oil has less consideration on the adsorption of charged dust of outdoor buildings and has limited self-cleaning effect. The hydrophobic water-based self-cleaning varnish can be produced and applied in batches, is safe and environment-friendly, and can meet the market demand well.
Disclosure of Invention
One of the objectives of the present invention is to provide an aqueous hydrophobic self-cleaning varnish to solve the above problems.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the water-based hydrophobic self-cleaning finishing oil comprises the following raw materials in percentage by mass:
50 to 90 percent of combined resin
8 to 20 percent of functional powder
1-10% of an auxiliary agent;
wherein the combined resin is water-based epoxy resin, fluorine-modified water-based acrylic resin and M5 inorganic-organic silicon resin; the functional powder is white fluorescent powder (such as YAG05 of Entex), paraffin powder and a thickening agent;
the invention reasonably matches a plurality of high-quality resins: wherein, the waterborne epoxy resin has the performances of weather resistance, durability, chemical resistance, corrosion resistance, wear resistance, non-pollution resistance and the like;
the fluorine modified water-based acrylic resin is prepared by dissolving, dispersing and emulsifying water-based solid acrylic resin (solid resin, which is purchased from new material GmbH, Guangzhou, Dusmanikang, Netherlands, model B805) grafted with fluorine element to prepare fluorine modified water-based acrylic resin emulsion;
the fluorine modified waterborne acrylic resin and the waterborne epoxy resin are combined according to a certain proportion, have compact texture and ultralow surface free energy, have strong scratch resistance, ideal hydrophobic effect and good self-cleaning capability;
the M5 inorganic-silicone resin is a special modified epoxy resin (multifunctional group) with silicone component introduced, purchased from friendship resin limited, brand: andebao, type: AG-8701; the M5 inorganic-organic silicon resin wraps the white light fluorescent functional powder and is matched with the nano silver ion bactericide, so that the white light fluorescent functional powder has the effect of releasing electrons by utilizing light energy absorption, realizes the automatic stripping function of charged dust pollutants, and can also kill bacteria and fungi on the surface to prevent the growth of microorganisms, so that the surface of a coated object is bright and clean as new for a long time. The resins are mutually cooperated as connecting materials in proper proportion; and proper auxiliaries are added to be coordinated with each other, so that the prepared water-based hydrophobic self-cleaning gloss oil has excellent performance and can basically solve the problems.
As a preferred technical scheme: the auxiliary agent comprises an anti-settling agent, a leveling agent, a defoaming agent, an antistatic agent, a PH stabilizer, a bactericide and an adhesion promoter.
As a further preferable aspect: the anti-settling agent is water-based nano-scale silicon dioxide, such as VK-Sp15W of a new crystal material, so that the anti-settling agent can prevent powder from settling to play a role in stability, change thixotropy, adjust viscosity, improve leveling property and prevent the powder from skinning, and can play a more excellent role by being combined with other components of the anti-settling agent;
the leveling agent is polyether modified polydimethylsiloxane, such as EL-2503 (EONLEO, a brand name, available in Dongguan, easy-standing chemical and technical limited), and can promote the coating to be flat, smooth and uniform in film formation, and effectively increase the surface smoothness, scratch resistance and anti-blocking property;
the defoaming agent is also used as a surfactant, for example, TEG Airex 900 can be selected, and plays a role in preventing and eliminating bubbles in the production and construction processes;
the antistatic agent, for example AES200 (an amine salt polymer) from Shanghai Deyu, Inc., is selected to have an antistatic effect during production and construction.
The adhesion promoter can be, for example, EL-9041 of Dongguan Yiliaan company, so that the product has excellent adhesion fastness to base materials such as pig iron, stainless steel, organic composite plates, ceramic materials and the like.
As a preferred technical scheme: the water-based hydrophobic self-cleaning gloss oil comprises the following components in percentage by mass: 43% of fluorine modified water-based acrylic resin, 26% of M5 inorganic-organic silicon resin, 18% of water-based epoxy resin, 5% of white light fluorescent powder, 3.4% of paraffin powder, 1.2% of thickening agent, 0.8% of anti-settling agent, 0.5% of flatting agent, 0.5% of defoaming agent, 0.3% of antistatic agent, 0.2% of adhesion promoter, 0.8% of pH stabilizer and 0.3% of bactericide;
the invention also aims to provide a preparation method of the water-based hydrophobic self-cleaning gloss oil, which adopts the technical scheme that the preparation method comprises the following steps: mixing the raw materials except the defoaming agent, the adhesion promoter, the pH stabilizer and the antistatic agent according to the proportion, stirring and dispersing, then grinding to obtain the product with the fineness of below 25 mu m, then adding the defoaming agent, the antistatic agent, the pH stabilizer and the adhesion promoter according to the proportion, filtering and packaging to obtain the product.
Compared with the prior art, the invention has the advantages that: the water-based hydrophobic self-cleaning gloss oil completely adopts water-based materials, is safe, environment-friendly and odorless, and avoids harm to constructors and users; the paint has super-strong self-cleaning capability, and the surface is clean and is not easy to pollute; the fluorescent powder with proper type and content is cooperated with other components, and the automatic stripping and self-cleaning function of the surface charged pollutants is realized through absorption and release of light energy and electronic transition; after coating and drying, the surface hardness, the brightness and the scratch resistance are high; the adhesive is suitable for the surfaces of various base materials such as metal, glass, concrete, ceramic and the like, has strong adhesive force, weather resistance and rain wash resistance, and has excellent dryness and good adhesive fastness; the bactericide with proper type and content can remove surface microorganisms by slowly releasing light energy at night to keep the surface of the varnish coating smooth and clean and prevent the breeding of microorganisms from influencing the use.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1:
the water-based hydrophobic self-cleaning gloss oil is prepared from the following raw materials in percentage by mass: 43% of fluorine modified water-based acrylic resin, 26% of M5 inorganic-organic silicon resin, 18% of water-based epoxy resin, 18% of white light fluorescent powder XL-205%, 3.4% of paraffin powder, 1.2% of thickening agent, 0.8% of anti-settling agent VK-Sp15W 0.8%, flatting agent EL-25030.5%, defoaming agent TEG Airex 9000.5%, antistatic agent AES 2000.3%, adhesion promoter EL-90410.2%, 0.8% of PH stabilizer and 200.3% of bactericide YURUI;
the preparation method comprises the following steps: mixing the raw materials except the surfactant, the adhesion promoter and the antistatic agent according to the proportion, stirring and dispersing, then grinding to obtain the material with the fineness of below 25 mu m, then adding the surfactant, the adhesion promoter, the bactericide, the PH stabilizer and the antistatic agent according to the proportion, coating the material in a No. 4 cup for 70-150 seconds, and filtering and packaging to obtain the product A.
Example 2:
the water-based hydrophobic self-cleaning gloss oil is prepared from the following raw materials in percentage by mass: 41% of fluorine modified water-based acrylic resin, 23% of M5 inorganic-organic silicon resin, 20% of water-based epoxy resin, 20% of white light fluorescent powder XL-207%, 4.4% of paraffin powder, 1.2% of thickening agent, VK-Sp15W 0.8.8% of anti-settling agent, EL-25030.5% of flatting agent, TEG Airex 9000.5% of defoaming agent, 2000.3% of antistatic agent AES, 24% of adhesion promoter EL-90410.2%, 0.8% of PH stabilizer and 200.3% of bactericide YURUI;
the preparation method comprises the following steps: mixing the raw materials except the surfactant, the adhesion promoter and the antistatic agent according to the proportion, stirring and dispersing, then grinding to obtain the material with the fineness of below 25 mu m, then adding the surfactant, the adhesion promoter, the bactericide, the PH stabilizer and the antistatic agent according to the proportion, coating the material in a No. 4 cup for 70-150 seconds, and filtering and packaging to obtain a product B.
Example 3:
the water-based hydrophobic self-cleaning gloss oil is prepared from the following raw materials in percentage by mass: 43% of fluorine modified water-based acrylic resin, 29% of M5 inorganic-organic silicon resin, 15% of water-based epoxy resin, 15% of white light fluorescent powder XL-205%, 3% of paraffin powder, 1.6% of thickening agent, 0.8% of anti-settling agent VK-Sp15W 0.8%, flatting agent EL-25030.5%, defoaming agent TEG Airex 9000.5%, antistatic agent AES 2000.3%, adhesion promoter EL-90410.2%, 0.8% of PH stabilizer and 200.3% of bactericide YURUI;
the preparation method comprises the following steps: mixing the raw materials except the surfactant, the adhesion promoter and the antistatic agent according to the proportion, stirring and dispersing, then grinding to obtain the material with the fineness of below 25 mu m, then adding the surfactant, the adhesion promoter, the bactericide, the PH stabilizer and the antistatic agent according to the proportion, coating the material in a No. 4 cup for 70-150 seconds, and filtering and packaging to obtain a product C.
Comparative example 1
This comparative example, in order to verify the role of the aforementioned M5 inorganic-silicone resin, compared to example 1, the comparative example was prepared in the same manner as example 1 except that no M5 inorganic-silicone resin was added, and "comparative a" was obtained.
And (3) performance testing: the products obtained in the claims were tested for their relevant properties, the test methods were in accordance with the relevant standards, and the test results are shown in Table 1.
Table 1 product Performance test results
Figure BDA0003175656620000071
As can be seen from table 1, example 1 is the most preferable example, and from comparison between comparative example 1 and example 1, it can be seen that the M5 inorganic-silicone resin of the present invention has significant effects in water resistance, alkali resistance, scrub resistance, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The water-based hydrophobic self-cleaning finishing oil is characterized by comprising the following raw materials in percentage by mass:
50 to 90 percent of combined resin
8 to 20 percent of functional powder
1-10% of an auxiliary agent;
the combined resin is water-based epoxy resin, fluorine modified water-based acrylic resin and M5 inorganic-organic silicon resin; the functional powder is white fluorescent powder, paraffin powder and a thickening agent.
2. The aqueous hydrophobic self-cleaning overprint varnish of claim 1, wherein: the auxiliary agent comprises an anti-settling agent, a leveling agent, a defoaming agent, a bactericide and an adhesion promoter.
3. The aqueous hydrophobic self-cleaning overprint varnish of claim 1, wherein: in the combined resin, the mass ratio of the water-based epoxy resin: fluorine-modified aqueous acrylic resin: m5 inorganic-silicone resin = (15-20): 30-55): (10-25).
4. The aqueous hydrophobic self-cleaning overprint varnish of claim 1, wherein: in the functional powder, the white light fluorescent powder is calculated according to the mass ratio: paraffin powder: thickener = (5-10): (5-12): (1-3).
5. The aqueous hydrophobic self-cleaning overprint varnish of claim 1, wherein: the composite material consists of the following raw materials in percentage by mass: 43% of fluorine modified water-based acrylic resin, 26% of M5 inorganic-organic silicon resin, 18% of water-based epoxy resin, 5% of white light fluorescent powder, 3.4% of paraffin powder, 1.2% of thickening agent, 0.8% of anti-settling agent, 0.5% of flatting agent, 9000.5% of defoaming agent, 0.3% of antistatic agent, 0.2% of adhesion promoter, 0.8% of pH stabilizer and 0.3% of bactericide.
6. The method for preparing the aqueous hydrophobic self-cleaning overprint varnish of claim 2, characterized by comprising the following steps: mixing the raw materials except the defoaming agent, the adhesion promoter, the pH stabilizer and the antistatic agent according to the proportion, stirring and dispersing, then grinding to obtain the product with the fineness of below 25 mu m, then adding the defoaming agent, the antistatic agent, the pH stabilizer and the adhesion promoter according to the proportion, filtering and packaging to obtain the product.
CN202110831619.7A 2021-07-22 2021-07-22 Water-based hydrophobic self-cleaning finishing oil and preparation method thereof Withdrawn CN113604119A (en)

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Application Number Priority Date Filing Date Title
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Application publication date: 20211105