CN111286236A - Aqueous single-component white flour material and preparation method and application thereof - Google Patents
Aqueous single-component white flour material and preparation method and application thereof Download PDFInfo
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- CN111286236A CN111286236A CN201911376741.9A CN201911376741A CN111286236A CN 111286236 A CN111286236 A CN 111286236A CN 201911376741 A CN201911376741 A CN 201911376741A CN 111286236 A CN111286236 A CN 111286236A
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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
- C09D133/04—Homopolymers or copolymers of esters
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/42—Gloss-reducing agents
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a water-based single-component white surface material and a preparation method and application thereof, wherein the water-based single-component white surface material comprises 30-40 parts of polyacrylic emulsion, 10-20 parts of polyurethane emulsion, 0.1-0.5 part of defoaming agent, 1-5 parts of wetting dispersant, 0.5-1.5 parts of thickening agent, 25-30 parts of titanium white slurry, 1-3 parts of organic matting agent, 3-5 parts of Fischer-Tropsch wax, 5-10 parts of film-forming auxiliary agent, 0.1-0.2 part of pH regulator, 0.1-0.2 part of bactericide and 5-10 parts of water; the aqueous single-component white-top material disclosed by the invention has the advantages of strong compactness of a paint film, excellent water resistance, high fullness, good construction performance and strong adhesive force, overcomes the defects of low fullness, poor compactness, poor adhesive force, general water resistance and the like of the existing aqueous single-component white-top material, and simultaneously has a certain yellowing resistance effect, thereby being a novel composite aqueous environment-friendly product.
Description
Technical Field
The invention belongs to the technical field of water-based wood paint, and particularly relates to a water-based single-component white surface material, and a preparation method and application thereof.
Background
With the further improvement of environmental protection regulations and the aim of reducing the earth load, the novel paint with low or zero VOC emission becomes a research and development hotspot, and the research, development, popularization and application of the water-based wood paint are more and more valued by people. In recent years, research and development of the water-based wood lacquer have achieved unprecedented development in China.
The water-based wood lacquer has been successfully applied to home decoration and common furniture thereof, and has expanded market share. However, in some middle and high-end fields, such as bathrooms and cabinets, based on cost requirements, the aqueous single-component woodware product is difficult to meet the requirements of customers on performance, the effect of the aqueous single-component paint is inferior, and the market is quite blank. The furniture such as bathroom and the like is well known for high water resistance, high fullness and wide application, and the water-based single-component technology is difficult to overcome.
The improvement of the above problems is usually achieved from two points of view, the selection of the host resin and the application of the matting material. The resin used as single-component waterborne wood on the market is generally acrylic emulsion, a composite or hybrid of waterborne acrylic and polyurethane emulsion. No matter which film forming material is adopted, the improvement of the performance is limited by raw materials, formulas and processes. And in the later process, the conventional inorganic water-based extinction material is adopted, so that the compactness of a paint film is further weakened, the hydrophilicity is poor, and the problems of poor water resistance, whitening and the like are caused.
In conclusion, the water-based single-component white surface material which has good fullness, good compactness, excellent adhesive force and good water resistance, and the preparation method and the application thereof need to be researched.
Disclosure of Invention
The invention aims to provide a water-based single-component white flour material, a preparation method and application thereof, and solves the problems of poor water resistance, low fullness and poor adhesion of the existing water-based white flour material; meanwhile, the easy construction (spraying) and yellowing performance of the single-component white surface material are improved.
The invention provides a water-based single-component white surface material, which comprises 30-40 parts of polyacrylic acid emulsion, 10-20 parts of polyurethane emulsion, 0.1-0.5 part of defoaming agent, 1-5 parts of wetting dispersant, 0.5-1.5 parts of thickening agent, 25-30 parts of titanium white slurry, 1-3 parts of organic matting powder, 3-5 parts of Fischer-Tropsch wax, 5-10 parts of film-forming assistant, 0.1-0.2 part of pH regulator, 0.1-0.2 part of bactericide and 5-10 parts of water.
Further, the titanium white slurry comprises the following components in parts by weight: 70-80 parts of rutile titanium dioxide, 5-10 parts of a dispersing agent, 0.1 part of a defoaming agent, 0.1-0.2 part of a bactericide and 10-15 parts of ionized water. The titanium dioxide is preferably chloride rutile type titanium dioxide, such as TS6200, titanium dioxide R-595 or titanium dioxide CR 510. The adding amount is 70-80 parts; preferably 80 parts.
Further, the preparation method of the polyacrylic acid emulsion comprises the following steps: 35 parts of acrylic esters, 25 parts of methacrylic acid and 0.8 part of alkyl alcohol ether sulfate ammonium salt emulsifier are subjected to polymerization reaction, and the emulsion with the anionic gradient structure is formed by a multi-kettle series connection bulk polymerization process. The polyacrylic emulsion prepared by the process can be SETAQUA6785 produced by Zhan Xin company or AC2524 (a product prepared by the materials and the process) produced by Europadi company.
Further, the preparation method of the polyurethane emulsion comprises the following steps: 9 parts of toluene diisocyanate, 5 parts of polyethylene glycol and 45 parts of dimethylol methacrylic acid are uniformly mixed, 1.5 parts of hydrophilic chain extender DMPA is introduced through a self-emulsion synthesis process, and 0.3 part of nonylphenol polyoxyethylene ether is introduced into a blocked end to synthesize a polyurethane inverse polymerization emulsion through hybridization (the prior art process). The polyurethane emulsion may be Lacper4219, Van der NeOREZ-986, Van der Waals Chemicals.
Further, the defoaming agent includes at least one of an organosiloxane, a polyether, and a polyether-modified silicon. The defoamer may be BYK094, BYK024 (a defoaming polysiloxane solution belonging to the class of organosiloxanes) from BYK, germany, or TEGO foamex810 (a polysiloxane-polyether copolymer belonging to the class of polyether modified silicones) from EVONIK, or TEGO AIREX 902W defoamer from EVONIK.
Further, the wetting dispersant includes at least one of an anionic dispersant, a non-ionic dispersant and a multifunctional dispersant. The anionic dispersant, the nonionic dispersant, and the multifunctional dispersant are free of solvent and ethoxynonylphenol. The wetting and dispersing agent may be TEGO Dispers 740W (non-ionic fatty acid derivatives) or TEGO Dispers715W (anionic polyacrylic acid sodium salt) or TEGO Dispers760W (aqueous solutions of multifunctional surfactants with pigment affinity groups) from TEGO, Germany.
Further, the thickener includes at least one of acrylics, polyurethanes, and cellulose ethers. The thickener may be Thixol 53L (acrylic acid copolymer solution) and Coapur830W (non-ionic aqueous polyurethane) from COATEX, France, RM-8W thickener, Rohm Hass TT-935 thickener or Kelaine hydroxyethyl cellulose ether thickener, etc.
Further, the organic matting powder is thermosetting polymethyl urea resin. The organic extinction powder is an organic thermosetting polymethyl urea resin modified extinction substance without hydrophilic groups. The organic matting powder can be used as a series of matting powders such as M6 of Yabao company in America, and the like, and can obtain surface properties and advantages which cannot be obtained by a standard matting agent such as traditional white carbon black or wax, can provide water resistance of a paint film, better smooth hand feeling and scratch resistance by adding the organic matting powder into water-based woodware, and has excellent ultraviolet stability and improved weather resistance of the paint.
Further, the Fischer-Tropsch wax is a long-chain aliphatic hydrocarbon which can improve the hand feeling and enhance the hydrophobicity of the paint film, such as the sand rope C80, and the addition amount is 3-5 parts, preferably 5 parts.
Further, the film forming aid includes a plurality of dipropylene glycol methyl ether, dipropylene glycol butyl ether, and diethylene glycol monobutyl ether.
Further, the bactericide is CMI (aqueous chloromethyl isothiazolinone), MI (aqueous methyl isothiazolinone) and bromonitropropanediol or a mixture of two or more of the above without N-/O-formal. Such as Parmetol A28 (CMI/MI and bromonitropropanediol mixture) or Parmetol K20 (CMI/MI mixture) from Shumei, Germany, and LXE and British Schulv fungicides from Rosehas. The addition amount is 0.1-0.5 part, preferably 0.2-0.3 part.
Further, the pH adjusting agent is ammonia, triethylamine or alcohol amine, preferably alcohol amine with small odor, such as AMP-95 (2-amino-2-methyl-1-propanol in molecular structure) of American ANGS. The pH value of the atomic ash is adjusted to ensure the stability during the storage process and is generally controlled between 7 and 9. The addition amount is 0.1-0.5 part, preferably 0.1-0.3 part.
The preparation method of the water-based single-component white-finish material comprises the following steps:
(1) weighing raw materials of the titanium white slurry according to the weight parts, mixing and uniformly stirring deionized water, a defoaming agent, a dispersing agent and a bactericide, stirring for 5-10 minutes at the rotation speed of 600-1500 r/min, adding rutile titanium dioxide, and dispersing for 20-30 minutes at the rotation speed of 1200-1500r/min to prepare the titanium white slurry;
(2) weighing raw materials of the water-based single-component white surface material according to the weight part, uniformly mixing polyacrylic emulsion, polyurethane emulsion, a defoaming agent, a thickening agent, a pH regulator and a film-forming additive, stirring for 5 minutes under the condition of 1200-1500r/min until no shrinkage exists, then adding a wetting dispersant under the condition of 300-500r/min, then adding organic matting powder, dispersing under the condition of 1200-1500r/min until the fineness is less than or equal to 35, then adding the titanium white slurry prepared in the step (1), uniformly dispersing, adding the rest raw materials, and regulating to standard viscosity to obtain the water-based single-component white surface material.
The water-based single-component white surface material can be applied to bathroom furniture and cabinets, and is directly mixed with water according to a specified proportion by adopting a method known in the art during construction, and then is sprayed or blade-coated on an object to be coated.
The invention has the beneficial effects that:
1. the polyacrylic acid emulsion synthesized by adopting a gradient structure is matched with the hybrid modified polyurethane emulsion, so that a paint film has good fullness, good compactness, excellent adhesive force and good water resistance;
2. according to the invention, the polyacrylic acid emulsion synthesized by adopting a gradient structure is matched with the hybrid modified polyurethane emulsion, and the organic matting powder is used in a matching manner, so that the water resistance and weather resistance of a paint film are improved.
3. The Fischer-Tropsch wax is properly introduced, so that the surface hand feeling and the hydrophobicity of the paint film are obviously improved, the hand feeling is smooth and fine, and the paint film is more comfortable and attractive when observed by naked eyes;
4. the product of the invention can be used by directly adding water without using time limit, and can also be used as white primer, so the sealing performance is better;
5. the water-based single-component white surface material is a water-based environment-friendly product, and is suitable for being applied and coated in single-component systems with higher resistance requirements, such as bathrooms, cabinets and the like.
Detailed Description
The technical effects of the present invention will be specifically described below by way of examples. It should be noted that the following examples are given solely for the purpose of illustration and are not to be construed as limitations on the scope of the invention, as many insubstantial modifications and variations of the invention may be made by those skilled in the art without departing from the spirit and scope of the invention.
Example 1
(1) Preparation of 80% titanium white slurry:
the titanium white slurry is directly added into the wood lacquer system, which is not easy to disperse, so that stable nano alumina slurry is prepared in advance and then added into the wood lacquer system in the paint mixing stage.
A. The titanium white slurry is prepared from the following raw materials in parts by weight:
mixing and stirring deionized water, a defoaming agent, a dispersing agent and a bactericide uniformly according to the weight parts, dispersing for 5-10 minutes at a medium and low speed, adding titanium dioxide, dispersing for 20-30 minutes at a high speed, and obtaining titanium dioxide slurry with the fineness of less than or equal to 15 microns.
The titanium dioxide content in the titanium white slurry is 80%, and no delamination and coarsening phenomenon is found at 50 ℃/7 d.
Preparing a water-based single-component white-surface material:
the preparation method comprises the following steps:
uniformly mixing polyacrylic acid emulsion, polyurethane emulsion, a defoaming agent, a thickening agent and a dispersing agent in parts by weight, dispersing at a high speed for 10 minutes without shrinkage, adding organic matting powder, dispersing at a high speed for 5 minutes to obtain a fineness of less than or equal to 35 microns, sequentially adding a film-forming assistant, a bactericide, a pH regulator, water and a thickening agent, uniformly dispersing, adjusting the viscosity to a standard viscosity, and packaging to be detected.
The water-based single-component white paint has various physical and chemical performance indexes:
example 2
The procedure is as in example 1, except that NEOREZ-986 is used in the polyurethane emulsion of this example, as in example 1. Meanwhile, the proportion of each component in the embodiment is also different:
example 3
The preparation process is the same as that of example 1, except that the aqueous single-component white flour material polyacrylic acid emulsion of the example adopts the following AC 2524:
example 4
The preparation process is the same as that of example 1, except that the polyacrylic acid emulsion of the water-based single-component white flour material of the example is AC2524, and the polyurethane emulsion NEOREZ-986 is as follows:
example 5
The preparation process is the same as that in example 1, except that the titanium dioxide of the aqueous single-component white surface material of the embodiment is dispersed as follows:
example 6
The preparation process is the same as that of example 1, except that the matting powder of the aqueous single-component white material of the example is carried out by adopting the traditional fumed silica matting SY-7000 as follows:
the data obtained from the above examples are shown in Table 1 (Standard for Performance test GB/T23999-2009)
Through the data, the system has the advantages of higher hardness, good fullness, strong water resistance, excellent yellowing resistance, excellent chemical resistance and completely better comprehensive performance than that of the common white-face material. Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The water-based single-component white surface material is characterized by comprising the following components in parts by weight: 30-40 parts of polyacrylic acid emulsion, 10-20 parts of polyurethane emulsion, 0.1-0.5 part of defoaming agent, 1-5 parts of wetting dispersant, 0.5-1.5 parts of thickening agent, 25-30 parts of titanium white slurry, 1-3 parts of organic matting powder, 3-5 parts of Fischer-Tropsch wax, 5-10 parts of film-forming assistant, 0.1-0.2 part of pH regulator, 0.1-0.2 part of bactericide and 5-10 parts of water.
2. The aqueous single-component white top material according to claim 1, wherein the titanium white paste comprises, in parts by weight: 70-80 parts of rutile titanium dioxide, 5-10 parts of a dispersing agent, 0.1 part of a defoaming agent, 0.1-0.2 part of a bactericide and 10-15 parts of deionized water.
3. The aqueous single-component white top material according to claim 1, wherein the antifoaming agent comprises at least one of an organosiloxane, a polyether, and a polyether-modified silicon.
4. The aqueous single-component white top material according to claim 1, wherein the wetting dispersant comprises at least one of an anionic dispersant, a non-ionic dispersant and a multifunctional dispersant.
5. The aqueous one-component white top material of claim 1, wherein the thickener comprises at least one of acrylics, polyurethanes, and cellulose ethers.
6. The aqueous single-component white top material according to claim 1, wherein the organic matting powder is a thermosetting polymethylurea resin.
7. The aqueous single component white top material of claim 1, wherein the fischer-tropsch wax is a long chain aliphatic hydrocarbon.
8. The aqueous single component white top material of claim 1, wherein the film forming aid comprises a plurality of dipropylene glycol methyl ether, dipropylene glycol butyl ether, and diethylene glycol monobutyl ether.
9. The method for preparing an aqueous one-component white top material according to any one of claims 1 to 8, comprising the steps of:
(1) weighing raw materials of the titanium white slurry according to the weight parts, mixing and uniformly stirring deionized water, a defoaming agent, a dispersing agent and a bactericide, stirring for 5-10 minutes at the rotation speed of 600-1500 r/min, adding rutile titanium dioxide, and dispersing for 20-30 minutes at the rotation speed of 1200-1500r/min to prepare the titanium white slurry;
(2) weighing raw materials of the water-based single-component white surface material according to the weight part, uniformly mixing polyacrylic emulsion, polyurethane emulsion, a defoaming agent, a thickening agent, a pH regulator and a film-forming additive, stirring for 5 minutes under the condition of 1200-1500r/min until no shrinkage exists, then adding a wetting dispersant under the condition of 300-500r/min, then adding organic matting powder, dispersing under the condition of 1200-1500r/min until the fineness is less than or equal to 35, then adding the titanium white slurry prepared in the step (1), uniformly dispersing, adding the rest raw materials, and regulating to standard viscosity to obtain the water-based single-component white surface material.
10. Use of the aqueous single-component white-top material according to claim 9 in sanitary furniture and cabinets.
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| CN112143314A (en) * | 2020-09-28 | 2020-12-29 | 福州展辰新材料有限公司 | Water-based high-fullness wood coating suitable for electrostatic spraying |
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| CN112143314A (en) * | 2020-09-28 | 2020-12-29 | 福州展辰新材料有限公司 | Water-based high-fullness wood coating suitable for electrostatic spraying |
| CN112143314B (en) * | 2020-09-28 | 2022-06-07 | 福州展辰新材料有限公司 | Water-based high-fullness wood coating suitable for electrostatic spraying |
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Application publication date: 20200616 |