CN114015340B - Sand-in-water multicolor paint and preparation method and application thereof - Google Patents
Sand-in-water multicolor paint and preparation method and application thereof Download PDFInfo
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- CN114015340B CN114015340B CN202111453906.5A CN202111453906A CN114015340B CN 114015340 B CN114015340 B CN 114015340B CN 202111453906 A CN202111453906 A CN 202111453906A CN 114015340 B CN114015340 B CN 114015340B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 239000003973 paint Substances 0.000 title claims abstract description 100
- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- 239000000839 emulsion Substances 0.000 claims abstract description 76
- 230000001681 protective effect Effects 0.000 claims abstract description 65
- 239000003292 glue Substances 0.000 claims abstract description 38
- 239000000853 adhesive Substances 0.000 claims abstract description 37
- 230000001070 adhesive effect Effects 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 239000006185 dispersion Substances 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000002791 soaking Methods 0.000 claims abstract description 7
- 239000008187 granular material Substances 0.000 claims abstract description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 72
- 238000003756 stirring Methods 0.000 claims description 57
- 229920002635 polyurethane Polymers 0.000 claims description 39
- 239000004814 polyurethane Substances 0.000 claims description 39
- 239000011248 coating agent Substances 0.000 claims description 34
- 238000000576 coating method Methods 0.000 claims description 34
- 239000008367 deionised water Substances 0.000 claims description 33
- 229910021641 deionized water Inorganic materials 0.000 claims description 33
- 230000000844 anti-bacterial effect Effects 0.000 claims description 32
- 239000003899 bactericide agent Substances 0.000 claims description 32
- 239000002518 antifoaming agent Substances 0.000 claims description 30
- 239000003431 cross linking reagent Substances 0.000 claims description 25
- 239000002562 thickening agent Substances 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000002270 dispersing agent Substances 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 14
- 239000001913 cellulose Substances 0.000 claims description 12
- 229920002678 cellulose Polymers 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 12
- 239000006004 Quartz sand Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 230000009477 glass transition Effects 0.000 claims description 5
- 239000013530 defoamer Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical group CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003755 preservative agent Substances 0.000 claims description 3
- 230000002335 preservative effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- -1 alcohol ester Chemical class 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 235000010215 titanium dioxide Nutrition 0.000 claims description 2
- 239000003086 colorant Substances 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 description 19
- 239000010410 layer Substances 0.000 description 17
- 230000003179 granulation Effects 0.000 description 11
- 238000005469 granulation Methods 0.000 description 11
- 239000012752 auxiliary agent Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000000428 dust Substances 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- DAFHKNAQFPVRKR-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)C DAFHKNAQFPVRKR-UHFFFAOYSA-N 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 240000002989 Euphorbia neriifolia Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- IPGANOYOHAODGA-UHFFFAOYSA-N dilithium;dimagnesium;dioxido(oxo)silane Chemical class [Li+].[Li+].[Mg+2].[Mg+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O IPGANOYOHAODGA-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/29—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for multicolour effects
-
- 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
Landscapes
- 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 relates to a sand-in-water multicolor paint and a preparation method and application thereof, wherein the sand-in-water multicolor paint is composed of the following raw materials in parts by weight: 40-60 parts of base paint, 20-30 parts of protective glue solution and 15-30 parts of continuous phase emulsion; the preparation method of the sand-in-water multicolor paint comprises the following steps: adding color paste into the base paint to adjust the color to a qualified color, then adding the protective glue solution to granulate, controlling the particle size by controlling the rotating speed and time, and adding the continuous phase emulsion after the particles are manufactured to obtain the sand-in-water multicolor paint. The sand-in-water is painted on the surface of metal in various colors, the sand-in-water has high adhesive force and is not easy to fall off, the bonding strength after soaking reaches more than 0.8MPa, and meanwhile, the sand-in-water has the advantages of rich color and uniform dispersion, and has better market prospect.
Description
Technical Field
The invention relates to the field of water-based paint, in particular to sand-in-water multicolor paint and a preparation method and application thereof.
Background
The sand-in-water coating is a novel high-grade water-based exterior wall coating which is subsequent to a real stone paint and a water-in-water coating, and combines the advantages of the water-in-water coating and the real stone paint. The method of coating the color sand in the water-in-water color dots is adopted, so that the water-in-water color dots have rich colors and high simulation degree of water-in-water paint, and have the texture of real stone paint and natural stone.
The existing sand-in-water coating can only be generally used for the surface of a relatively rough base layer such as concrete and the like, is exposed in the environment of outdoor wind, sun and rain all the year round, and can easily fall off if being used for the surface of smooth metal such as an aluminum plate and the like. In recent years, with the development of the construction industry, the amount of the metal plate material for the facade of a building is greatly increased. Meanwhile, the requirements of developers on the decorative effect of the coating are higher and higher, so that a product which has high adhesive force, can be applied to the surface of metal and has good decorative effect is needed.
The aqueous polyurethane emulsion is widely applied to industrial paint and wood paint, is used as a main film forming substance, has excellent weather resistance and bonding force, and has obviously excellent weather resistance and bonding strength compared with the conventional acrylic emulsion latex paint in the case that the aqueous polyurethane emulsion is applied to the latex paint in recent years. However, the components in the aqueous polyurethane emulsion and the water-in-sand have a rejection function, so that the phenomena of precipitation, flocculation, layering and the like often occur in the application of the aqueous polyurethane emulsion and the water-in-sand paint, normal construction cannot be carried out, and the use of the product is influenced.
Disclosure of Invention
The invention aims to overcome the problem that the existing sand-in-water coating is easy to fall off when used on the surface of metal, and provides a sand-in-water multicolor coating which is applied to the surface of metal and has high adhesive force and good decorative effect.
The specific scheme is as follows:
the sand-in-water multicolor paint comprises the following raw materials in parts by weight: 40-60 parts of base paint, 20-30 parts of protective glue solution and 20-40 parts of continuous phase emulsion;
the base paint comprises the following raw materials in parts by weight: 15-25 parts of deionized water, 0-0.2 part of bactericide, 0.1-0.3 part of dispersant, 0.5-1 part of defoamer, 0.5-1 part of cross-linking agent, 10-15 parts of powder filler, 20-30 parts of quartz sand, 1.5 parts of cellulose, 0.01-0.1 part of pH regulator, 25-35 parts of polyurethane emulsion, 0.3-0.7 part of film-forming assistant, 0.3-0.7 part of propylene glycol, 0.01-0.1 part of thickener, 0-0.3 part of preservative and 8-12 parts of protective adhesive;
the protective glue solution consists of the following raw materials in parts by weight: 5-10 parts of protective glue and 90-95 parts of deionized water;
the continuous phase emulsion comprises the following raw materials in parts by weight: 50-55 parts of polyurethane emulsion, 2-3 parts of film forming additive, 2-3 parts of propylene glycol, 0.1-0.3 part of pH regulator, 0.2-0.5 part of cross-linking agent, 0.01-0.1 part of defoaming agent, 0-0.3 part of bactericide, 0.01-0.1 part of thickening agent and 40-50 parts of deionized water.
Further, the dispersing agent is 5027 in Nopockets, the defoaming agent is NXZ in Nopockets, the powder filler is the combination of kaolin, titanium dioxide and talcum powder in any proportion, the pH regulator is AMP-95, and the protective glue is S482 in ByK in Germany.
Further, the polyurethane emulsion is aqueous polyurethane emulsion, the solid content is 45-50wt%, the glass transition temperature is 28-35 ℃, the lowest film forming temperature is 5 ℃, the viscosity is 300-2000mpa & s at 25 ℃, and the hydroxyl content is 3.0-3.5wt%;
optionally, the film-forming aid is alcohol ester twelve, the cross-linking agent is coated Ex-640, and the thickening agent is Dow chemical TT935.
Further, the preparation method of the sand-in-water multicolor paint comprises the following steps: adding color paste into the base paint to adjust the color to a qualified color, then adding the protective glue solution to granulate, controlling the particle size by controlling the rotating speed and time, and adding the continuous phase emulsion after the particles are manufactured to obtain the sand-in-water multicolor paint.
Further, the sand-in-water multicolor paint is sprayed on the metal surface, and the spraying amount is 1-2kg/m 2 Is formed when the catalyst is used.
The invention also provides a preparation method of the sand-in-water multicolor paint, which comprises the following steps:
obtaining the raw materials according to the weight parts;
preparing a base paint: mixing deionized water, a bactericide, a dispersant and a defoaming agent, adding powder filler, quartz sand and cellulose after stirring, keeping stirring, adding a pH regulator, uniformly mixing, and then testing to obtain a qualified product when the fineness of solid matters in a solution is lower than 30-50um, adding a polyurethane emulsion, a film-forming assistant, propylene glycol, a cross-linking agent, a defoaming agent, a thickening agent, a bactericide and a protective adhesive after the fineness is qualified, and uniformly stirring to obtain the base paint for later use;
preparing a protective colloid solution: mixing deionized water and protective glue, and uniformly stirring to obtain a protective glue solution for later use;
preparation of continuous phase emulsion: mixing polyurethane emulsion, a film-forming assistant, propylene glycol, a cross-linking agent and a pH regulator, adding a defoaming agent, a bactericide, a thickening agent and deionized water after uniformly stirring, and uniformly stirring to obtain the continuous phase emulsion for later use;
adding color paste into the base paint to adjust the color to a qualified color, then adding the protective glue solution to granulate, controlling the particle size by controlling the rotating speed and time, and adding the continuous phase emulsion after the particles are manufactured to obtain the sand-in-water multicolor paint.
Further, the base paint is prepared by: adding deionized water into a base paint preparation kettle at room temperature, regulating the rotation speed of a dispersion machine to 200-400r/min, sequentially adding a bactericide, a dispersing agent and a defoaming agent, keeping the rotation speed and stirring for 3-5min, adding powder filler, quartz sand and cellulose, increasing the rotation speed to 500-600r/min, adding a pH regulator, increasing the rotation speed to 1000-1200r/min, stopping the machine for sampling after dispersing for 15-30min, starting the machine for stirring after testing that the fineness is lower than 30-50um and testing the fineness is qualified, reducing the rotation speed to 800-900r/min, sequentially adding a polyurethane emulsion, a film-forming auxiliary agent, propylene glycol, a cross-linking agent, a defoaming agent, a thickening agent, a bactericide and a protective adhesive, and continuously stirring for 10-20min to obtain the base paint for later use.
Further, the preparation of the protective colloid solution comprises the following steps: adding deionized water into a stirring kettle at room temperature, adjusting the rotating speed of a dispersion machine to be 300-500r/min, adding protective glue, increasing the rotating speed to be 700-800r/min, and dispersing for 1-2 hours to obtain the protective glue solution for later use.
Further, continuous phase emulsion preparation: adding the polyurethane emulsion into a stirring kettle at room temperature, increasing the rotating speed to 300-500r/min, sequentially adding the film-forming assistant, propylene glycol, a cross-linking agent and a pH regulator, increasing the rotating speed to 700-900r/min, dispersing for 10-20min, adding a defoaming agent, a bactericide, a thickening agent and deionized water, and dispersing for 10-20min to obtain the continuous phase emulsion for later use.
The invention also protects the application of the sand-in-water multicolor paint in surface treatment of metal substrates.
Has the advantages that:
the water-coated sand multicolor paint comprises a base paint, a protective glue solution and a continuous phase emulsion, wherein the base paint is used for mixing with color paste, the fineness of the base paint is controlled to facilitate the dispersion of the color paste, and the color paste is dispersed during granulation, so that a foundation is laid for the formation of a multicolor coating.
Furthermore, the protective adhesive is an artificially synthesized nano-scale magnesium lithium silicate salt substance, forms a three-dimensional cabin-shaped structure after swelling in water, and is uniformly coated on the base paint particles to form an ultrathin transparent protective layer so as to prevent the base paint from bleeding.
Furthermore, the continuous phase emulsion of the invention is based on a polyurethane emulsion, which on the one hand ensures the adhesive strength of the coating on the metal substrate and on the other hand can interact with the crosslinking agent in the base paint. Preferably, the crosslinker is cold Ex-640, which is commonly chemical, and contains two groups: a group capable of bonding to the metal substrate to be bonded; and another group can be combined with a high polymer material, such as polyurethane molecules, so that a strong chemical bond is formed at a bonding interface, and the adhesive force is greatly improved.
In a word, the sand-in-water multicolor paint can be used for a metal base layer, has high adhesive force, has the adhesive strength of more than 1.2MPa in a standard state after being used, has the adhesive strength of more than 0.8MPa after being soaked in water, and is not easy to fall off and peel off. Meanwhile, the color paste in the coating is uniformly dispersed, so that the visual effect of uniformly dispersing various color particles can be formed, and the coating has a good market application prospect.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Those skilled in the art will recognize that the specific techniques or conditions, not specified in the examples, are according to the techniques or conditions described in the literature of the art or according to the product specification. The reagents or instruments used are conventional products which are commercially available, and are not indicated by manufacturers. In the following examples, "%" means weight percent, unless otherwise specified.
The test methods used below included:
bonding strength: the test is carried out by referring to the 7.17 bond strength test method in the JG/T24-2018 standard.
The following main reagents were used:
preservative: dow MBS5050
Dispersing agent: norpule 5027
Powder filler: kaolin is DG 80 of inner Mongolia super brand building materials science and technology Limited company
Titanium dioxide: bailey Co R-699
Cellulose: aksu's EMH500
pH regulator: dow chemical AMP-95
A crosslinking agent: common chemical Coadd Ex-640
Propylene glycol: dow propylene glycol PG
Film-forming auxiliary agent: texanol of Istman
Defoaming agent: NXZ of Nopock
Polyurethane emulsion: wanhua PUD emulsion, the parameters are: the water-based polyurethane emulsion has the solid content of 45-50wt%, the glass transition temperature of 28-35 ℃, the minimum film-forming temperature of 5 ℃, the viscosity of 300-2000mpa & s at 25 ℃ and the hydroxyl content of 3.0-3.5wt%.
And (3) bactericide: HF of THOR
Protection glue: s482 of BYK
Thickening agent: dow TT935
Example 1:
the preparation method of the water-in-sand multicolor paint comprises the following steps:
(1) Preparing a base paint: at room temperature, 15.3 parts of deionized water is added into a base paint preparation kettle, the rotating speed of a dispersion machine is adjusted to 300r/min, 0.1 part of bactericide, 0.3 part of dispersant and 0.5 part of defoaming agent are sequentially added, the rotating speed is kept and the mixture is stirred for 5min, 15 parts of powder filler, 20 parts of quartz sand and 1.5 parts of cellulose are slowly added, the rotating speed is increased to 500r/min, 0.1 part of pH regulator is added, the rotating speed is slowly increased to 1200r/min, after the mixture is dispersed for 20min, the machine is stopped and the sample is taken, after the test fineness (the fineness is lower than 50 um) is qualified, the machine is started and the stirring is carried out, the rotating speed is reduced to 900r/min, 35 parts of polyurethane emulsion, 0.5 part of film-forming auxiliary agent, 0.5 part of propylene glycol, 0.5 part of defoaming agent, 0.4 part of crosslinking agent, 0.1 part of thickening agent, 0.2 part of bactericide and 10 parts of protective adhesive are sequentially added, after the stirring for 15min, the machine is stopped and the sample is taken for detection, and the color mixing is carried out for later use after the qualified detection.
(2) Preparing a protective adhesive: at room temperature, 95 parts of deionized water is added into a stirring kettle, the rotating speed of a dispersion machine is adjusted to be 500r/min, 5 parts of protective glue powder is slowly added, the rotating speed is increased to be 800r/min, the stirring kettle is stopped to sample and detect after being dispersed for 2 hours, and the protective glue powder is reserved after being detected to be qualified.
(3) Preparation of continuous phase emulsion: at room temperature, 50 parts of polyurethane emulsion is added into a stirring kettle, the rotating speed is increased to 500r/min, 3 parts of film-forming auxiliary agent, 2 parts of propylene glycol, 0.2 part of cross-linking agent and 0.2 part of PH regulator are sequentially added, the rotating speed is increased to 800r/min, after dispersion is carried out for 10min, 0.1 part of defoaming agent, 0.2 part of bactericide, 0.1 part of thickening agent and 45.2 parts of deionized water are added, dispersion is carried out for 15min, the machine is stopped, sampling is carried out, and the polyurethane emulsion is reserved after being detected to be qualified.
(4) And adding color paste into the base paint qualified in inspection according to the formula proportion and the color required by the sample plate to adjust the color to the qualified color for later use. Adding 22 parts of protective glue solution into a granulation cylinder, weighing 40 parts of base paints with different colors in corresponding proportion according to the sample effect, adding the base paints into the protective glue solution, starting stirring for granulation, and selecting different rotating speeds and time to control the particle size. And adding 38 parts of continuous phase emulsion after the particles are manufactured, and stirring and mixing uniformly to obtain the water-based sand-in-water coating for the metal base layer.
Firstly, removing dirt such as dust, oil stain and the like on a metal base layer, and spraying the water-based sand-in-water coating prepared by the invention on the surface of metal with the spraying amount of 1.5kg/m 2 . Through detection, the water-based sand-in-water coating for the metal base layer, prepared by the invention, has high adhesive force, the bonding strength reaches 1.2MPa in a standard state, and the bonding strength reaches 1.0MPa after soaking in water.
Example 2:
the preparation method of the water-in-sand multicolor paint comprises the following steps:
(1) Preparing a base paint: at room temperature, 16.8 parts of deionized water is added into a base paint preparation kettle, the rotating speed of a dispersion machine is adjusted to 300r/min, 0.1 part of bactericide, 0.3 part of dispersant and 0.3 part of defoaming agent are sequentially added, the rotating speed is kept and the mixture is stirred for 5min, 12 parts of powder filler, 25 parts of quartz sand and 1.5 parts of cellulose are slowly added, the rotating speed is increased to 500r/min, 0.1 part of pH regulator is added, the rotating speed is slowly increased to 1200r/min, after the mixture is dispersed for 20min, the machine is stopped and the sample is taken, after the test fineness (the fineness is lower than 50 um) is qualified, the machine is started and the stirring is carried out, the rotating speed is reduced to 900r/min, 32 parts of polyurethane emulsion, 0.5 part of film-forming auxiliary agent, 0.5 part of propylene glycol, 0.4 part of defoaming agent, 0.2 part of crosslinking agent, 0.1 part of thickening agent, 0.2 part of bactericide and 10 parts of protective adhesive are sequentially added, after the stirring is carried out for 15min, the machine is stopped and the sample is carried out for detection, and the color mixing is carried out for later.
(2) Preparing a protective adhesive: at room temperature, 95 parts of deionized water is added into a stirring kettle, the rotating speed of a dispersion machine is adjusted to be 500r/min, 5 parts of protective adhesive powder are slowly added, the rotating speed is increased to be 800r/min, the stirring kettle is stopped to sample and detect after being dispersed for 2 hours, and the protective adhesive powder is reserved after being detected to be qualified.
(3) Preparation of continuous phase emulsion: at room temperature, 50 parts of polyurethane emulsion is added into a stirring kettle, the rotating speed is increased to 500r/min, 2 parts of film-forming auxiliary agent, 2 parts of propylene glycol, 0.2 part of cross-linking agent and 0.2 part of PH regulator are sequentially added, the rotating speed is increased to 800r/min, after dispersion is carried out for 10min, 0.1 part of defoaming agent, 0.2 part of bactericide, 0.1 part of thickening agent and 45.2 parts of deionized water are added, dispersion is carried out for 15min, the machine is stopped, sampling is carried out, and the polyurethane emulsion is reserved after being detected to be qualified.
(4) And adding color paste into the base paint qualified in inspection according to the formula proportion and the color required by the sample plate to adjust the color to the qualified color for later use. Adding 22 parts of the protective adhesive solution into a granulation cylinder, weighing 40 parts of base paints with different colors in corresponding proportions according to the sample effect, adding the base paints into the protective adhesive solution, starting stirring for granulation, and selecting different rotating speeds and time to control the particle size. And adding 38 parts of continuous phase emulsion after the particles are manufactured, and stirring and mixing uniformly to obtain the water-based sand-in-water coating for the metal base layer.
Firstly, removing dirt such as dust, oil stain and the like on a metal base layer, and spraying the water-based sand-in-water coating prepared by the invention on the surface of metal, wherein the spraying amount is 1.5kg/m 2 . Through detection, the water-based sand-in-water coating for the metal base layer, prepared by the invention, has high adhesive force, the bonding strength reaches 1.2MPa in a standard state, and the bonding strength reaches 1.0MPa after soaking in water.
Example 3:
the preparation method of the water-coated sand multicolor paint comprises the following steps:
(1) Preparing a base paint: at room temperature, 15.2 parts of deionized water is added into a base paint preparation kettle, the rotating speed of a dispersion machine is adjusted to 300r/min, 0.1 part of bactericide, 0.3 part of dispersant and 0.5 part of defoaming agent are sequentially added, the rotating speed is kept and the mixture is stirred for 5min, 10 parts of powder filler, 25 parts of quartz sand and 1.5 parts of cellulose are slowly added, the rotating speed is increased to 500r/min, 0.1 part of pH regulator is added, the rotating speed is slowly increased to 1200r/min, after the mixture is dispersed for 20min, the machine is stopped and the sample is taken, after the test fineness (the fineness is lower than 50 um) is qualified, the machine is started and the stirring is carried out, the rotating speed is reduced to 900r/min, 35 parts of polyurethane emulsion, 0.5 part of film-forming auxiliary agent, 0.5 part of propylene glycol, 0.5 part of defoaming agent, 0.5 part of crosslinking agent, 0.1 part of thickening agent, 0.2 part of bactericide and 10 parts of protective adhesive are sequentially added, after the stirring for 15min, the machine is stopped and the sample is taken for detection, and the color mixing is carried out for later use after the qualified detection.
(2) Preparing a protective adhesive: at room temperature, 95 parts of deionized water is added into a stirring kettle, the rotating speed of a dispersion machine is adjusted to be 500r/min, 5 parts of protective glue powder is slowly added, the rotating speed is increased to be 800r/min, the stirring kettle is stopped to sample and detect after being dispersed for 2 hours, and the protective glue powder is reserved after being detected to be qualified.
(3) Preparation of continuous phase emulsion: at room temperature, 54 parts of polyurethane emulsion is added into a stirring kettle, the rotating speed is increased to 500r/min, 3 parts of film-forming auxiliary agent, 2 parts of propylene glycol, 0.4 part of cross-linking agent and 0.2 part of PH regulator are sequentially added, the rotating speed is increased to 800r/min, after 10min of dispersion, 0.1 part of defoaming agent, 0.2 part of bactericide, 0.1 part of thickening agent and 40 parts of deionized water are added, 15min of dispersion is carried out, the machine is stopped and sampling is carried out, and the polyurethane emulsion is reserved after qualified detection.
(4) And adding color paste into the base paint which is qualified in inspection according to the formula proportion and the color required by the sample plate, and mixing the colors to the qualified color for later use. Adding 22 parts of protective glue solution into a granulation cylinder, weighing 40 parts of base paints with different colors in corresponding proportion according to the sample effect, adding the base paints into the protective glue solution, starting stirring for granulation, and selecting different rotating speeds and time to control the particle size. And adding 38 parts of continuous phase emulsion after the particles are manufactured, and stirring and mixing uniformly to obtain the water-based sand-in-water coating for the metal base layer.
Firstly, removing dirt such as dust, oil stain and the like on a metal base layer, and spraying the water-based sand-in-water coating prepared by the invention on the surface of metal, wherein the spraying amount is 1.5kg/m 2 . Through detection, the water-based sand-in-water coating for the metal base layer, prepared by the invention, has high adhesive force, the bonding strength reaches 1.5MPa in a standard state, and the bonding strength reaches 1.2MPa after soaking in water.
Example 4
The preparation method of the water-in-sand multicolor paint comprises the following steps:
(1) Preparing a base paint: at room temperature, 15.2 parts of deionized water is added into a base paint preparation kettle, the rotating speed of a dispersion machine is adjusted to 200r/min, 0.1 part of bactericide, 0.3 part of dispersant and 0.5 part of defoaming agent are sequentially added, the rotating speed is kept and the mixture is stirred for 5min, 10 parts of powder filler, 28 parts of quartz sand and 1.5 parts of cellulose are slowly added, the rotating speed is increased to 550r/min, 0.1 part of pH regulator is added, the rotating speed is slowly increased to 1100r/min, after the mixture is dispersed for 20min, the machine is stopped and the sample is taken, after the test fineness (the fineness is lower than 50 um) is qualified, the machine is started and the stirring is carried out, the rotating speed is reduced to 800r/min, 35 parts of polyurethane emulsion, 0.5 part of film-forming auxiliary agent, 0.5 part of propylene glycol, 0.5 part of defoaming agent, 0.5 part of crosslinking agent, 0.1 part of thickening agent, 0.2 part of bactericide and 10 parts of protective adhesive are sequentially added, after the stirring for 15min, the machine is stopped and the sample is taken for detection, and the color mixing is carried out for later use after the qualified detection.
(2) Preparing a protective adhesive: at room temperature, 90 parts of deionized water is added into a stirring kettle, the rotating speed of a dispersion machine is adjusted to 400r/min, 10 parts of protective glue powder is slowly added, the rotating speed is increased to 700r/min, the stirring kettle is stopped to sample and detect after being dispersed for 2 hours, and the protective glue powder is reserved after being detected to be qualified.
(3) Preparation of continuous phase emulsion: at room temperature, 53 parts of polyurethane emulsion is added into a stirring kettle, the rotating speed is increased to 400r/min, 3 parts of film-forming auxiliary agent, 2 parts of propylene glycol, 0.4 part of cross-linking agent and 0.2 part of PH regulator are sequentially added, the rotating speed is increased to 700r/min, after dispersion is carried out for 10min, 0.1 part of defoaming agent, 0.2 part of bactericide, 0.1 part of thickening agent and 40 parts of deionized water are added, dispersion is carried out for 15min, stopping sampling is carried out, and the polyurethane emulsion is reserved after qualified detection.
(4) And adding color paste into the base paint qualified in inspection according to the formula proportion and the color required by the sample plate to adjust the color to the qualified color for later use. Adding 20 parts of protective glue solution into a granulation cylinder, weighing 60 parts of different-color base paints in corresponding proportion according to the sample effect, adding the base paints into the protective glue solution, starting stirring for granulation, and selecting different rotating speeds and time to control the particle size. And after the particles are manufactured, adding 20 parts of continuous phase emulsion, and stirring and mixing uniformly to obtain the water-based sand-in-water coating for the metal base layer.
Firstly, removing dirt such as dust, oil stain and the like on a metal base layer, and spraying the water-based sand-in-water coating prepared by the invention on the surface of metal, wherein the spraying amount is 1.5kg/m 2 . Through detection, the water-based sand-in-water coating for the metal base layer, prepared by the invention, has high adhesive force, the bonding strength reaches 1.2MPa in a standard state, and the bonding strength reaches 1.0MPa after soaking in water.
Example 5
The preparation method of the water-coated sand multicolor paint comprises the following steps:
(1) Preparing a base paint: at room temperature, adding 15.2 parts of deionized water into a base paint preparation kettle, regulating the rotating speed of a dispersion machine to 400r/min, sequentially adding 0.1 part of bactericide, 0.3 part of dispersant and 0.5 part of defoamer, keeping the rotating speed and stirring for 5min, slowly adding 15 parts of powder filler, 20 parts of quartz sand and 1.5 parts of cellulose, increasing the rotating speed to 600r/min, adding 0.1 part of pH regulator, slowly increasing the rotating speed to 1000r/min, stopping the machine for sampling after dispersing for 20min, starting the machine for stirring after testing the fineness (the fineness is lower than 50 mu m) is qualified, reducing the rotating speed to 800r/min, sequentially adding 30 parts of polyurethane emulsion, 0.5 part of film-forming assistant, 0.5 part of propylene glycol, 0.5 part of defoamer, 0.5 part of cross-linking agent, 0.1 part of thickening agent, 0.2 part of bactericide and 12 parts of protective adhesive, stopping the machine for sampling and detecting the mixture after the mixture is qualified by stirring 15min, and stopping the machine for color mixing for later use after the detection.
(2) Preparing protective glue: at room temperature, adding 92 parts of deionized water into a stirring kettle, adjusting the rotating speed of a dispersion machine to 400r/min, slowly adding 8 parts of protective adhesive powder, increasing the rotating speed to 800r/min, dispersing for 2 hours, stopping sampling and detecting, and keeping the product for later use after the detection is qualified.
(3) Preparation of continuous phase emulsion: at room temperature, adding 55 parts of polyurethane emulsion into a stirring kettle, increasing the rotating speed to 500r/min, sequentially adding 2 parts of film-forming additive, 3 parts of propylene glycol, 0.5 part of cross-linking agent and 0.3 part of PH regulator, increasing the rotating speed to 900r/min, dispersing for 10min, adding 0.1 part of defoaming agent, 0.2 part of bactericide, 0.1 part of thickening agent and 40 parts of deionized water, dispersing for 15min, stopping the machine, sampling, and detecting for later use after the detection is qualified.
(4) And adding color paste into the base paint which is qualified in inspection according to the formula proportion and the color required by the sample plate, and mixing the colors to the qualified color for later use. And adding 25 parts of the protective adhesive solution into a granulation cylinder, weighing 45 parts of base paints with different colors in corresponding proportions according to the sample effect, adding the base paints into the protective adhesive solution, stirring for granulation, and selecting different rotating speeds and time to control the particle size. And after the particles are manufactured, adding 30 parts of continuous phase emulsion, and stirring and mixing uniformly to obtain the water-based sand-in-water coating for the metal base layer.
Firstly, removing dirt such as dust, oil stain and the like on a metal base layer, and spraying the water-based sand-in-water coating prepared by the invention on the surface of metal, wherein the spraying amount is 1.5kg/m 2 . Through detection, the water-based sand-in-water coating for the metal base layer, prepared by the invention, has high adhesive force, the bonding strength reaches 1.4MPa in a standard state, and the bonding strength reaches 1.2MPa after soaking in water.
Comparative example 1
Reference is made to example 1, with the difference that the polyurethane emulsion in the base paint and in the continuous phase emulsion is replaced by an acrylic emulsion of equal mass:
when the coating is prepared by adopting Wanhua 8037 acrylic emulsion (the solid content is 46 percent, the glass transition temperature is 28 ℃ and the lowest film forming temperature is 24 ℃), the preparation method is the same as that of the example 1, spraying is carried out according to the same mode, the bonding strength under the detection standard state is 0.6MPa, and the bonding strength is lower than the use requirement of 1.0MPa.
When the paint is prepared by using the Xinguang XG-2765 acrylic emulsion (the solid content is 47%, the glass transition temperature is 20 ℃, and the minimum film forming temperature is 23 ℃), the preparation method is the same as that of the example 1, spraying is carried out according to the same mode, the bonding strength in a detection standard state is 0.7MPa, and the bonding strength is lower than the use requirement of 1.0MPa.
Comparative example 2
The coating preparation was carried out in accordance with example 1, except that the equal mass of badenfu emulsion was used instead of warhua PUD emulsion, and the preparation method was the same as example 1, and it was found that the coating was in the form of gel every other day after the preparation, and the coating could not be applied normally.
Comparative example 3
The preparation method is the same as example 1, and the paint preparation is carried out by adopting the same mass of the Openop-A protective adhesive to replace the BYK S482, and obvious precipitation appears after the paint is prepared and placed in a constant temperature oven at 25 ℃ for 3 days, so that normal construction cannot be carried out.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the foregoing embodiments may be combined in any suitable manner without contradiction. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The sand-in-water multicolor paint is characterized in that: comprises the following raw materials in parts by weight: 40-60 parts of base paint, 20-30 parts of protective glue solution and 20-40 parts of continuous phase emulsion;
the base paint comprises the following raw materials in parts by weight: 15-25 parts of deionized water, 0-0.2 part of bactericide, 0.1-0.3 part of dispersant, 0.5-1 part of defoamer, 0.5-1 part of cross-linking agent, 10-15 parts of powder filler, 20-30 parts of quartz sand, 1.5 parts of cellulose, 0.01-0.1 part of pH regulator, 25-35 parts of polyurethane emulsion, 0.3-0.7 part of film-forming assistant, 0.3-0.7 part of propylene glycol, 0.01-0.1 part of thickener, 0-0.3 part of preservative and 8-12 parts of protective adhesive; the powder filler is the combination of kaolin, titanium dioxide and talcum powder in any proportion; the protective glue solution consists of the following raw materials in parts by weight: 5-10 parts of protective glue and 90-95 parts of deionized water;
the continuous phase emulsion comprises the following raw materials in parts by weight: 50-55 parts of polyurethane emulsion, 2-3 parts of film forming additive, 2-3 parts of propylene glycol, 0.1-0.3 part of pH regulator, 0.2-0.5 part of cross-linking agent, 0.01-0.1 part of defoaming agent, 0-0.3 part of bactericide, 0.01-0.1 part of thickening agent and 40-50 parts of deionized water;
the polyurethane emulsion is aqueous polyurethane emulsion, the solid content is 45-50wt%, the glass transition temperature is 28-35 ℃, the lowest film forming temperature is 5 ℃, the viscosity is 300-2000mpa & s at 25 ℃, and the hydroxyl content is 3.0-3.5wt%; the protective glue is S482 of ByK, germany.
2. The sand-in-water multicolor paint of claim 1, wherein: the dispersing agent is Nopleaceae 5027, the antifoaming agent is NXZ of Nopleaceae, and the pH regulator is AMP-95.
3. The sand-in-water multicolor paint of claim 1 or 2, characterized in that: the film-forming aid is alcohol ester twelve, and the thickener is Dow chemical TT935.
4. The sand-in-water multicolor paint of claim 1, wherein: the preparation method of the sand-in-water multicolor paint comprises the following steps: adding color paste into the base paint to adjust the color to a qualified color, then adding the protective glue solution to granulate, controlling the particle size by controlling the rotating speed and time, and adding the continuous phase emulsion after the particles are manufactured to obtain the sand-in-water multicolor paint.
5. The sand-in-water multicolor paint of claim 1 or 4, wherein: the water-coated sand multicolor paint is sprayed on the surface of metal, and the spraying amount is 1-2kg/m 2 The bonding strength of the formed coating in a standard state is more than or equal to 1.2MPa, and the bonding strength of the coating after soaking is more than or equal to 0.8MPa.
6. A method for preparing the sand-in-water multicolor paint of any one of claims 1 to 5, which is characterized by comprising the following steps: the method comprises the following steps:
obtaining the raw materials according to the weight parts;
preparing a base paint: mixing deionized water, a bactericide, a dispersant and a defoaming agent, adding a powder filler, quartz sand and cellulose after stirring, keeping stirring, adding a pH regulator, uniformly mixing, testing to obtain qualified products when the fineness of solid matters in a solution is lower than 50 micrometers, adding a polyurethane emulsion, a film-forming assistant, propylene glycol, a cross-linking agent, a defoaming agent, a thickening agent, a bactericide and a protective adhesive after the fineness is qualified, and uniformly stirring to obtain the base paint for later use;
preparing a protective colloid solution: mixing deionized water and protective glue, and uniformly stirring to obtain a protective glue solution for later use;
preparation of continuous phase emulsion: mixing polyurethane emulsion, a film-forming assistant, propylene glycol, a cross-linking agent and a pH regulator, adding a defoaming agent, a bactericide, a thickening agent and deionized water after uniformly stirring, and uniformly stirring to obtain the continuous phase emulsion for later use;
adding color paste into the base paint to adjust the color to a qualified color, then adding the protective glue solution to granulate, controlling the particle size by controlling the rotating speed and time, and adding the continuous phase emulsion after the particles are manufactured to obtain the sand-in-water multicolor paint.
7. The method for preparing the sand-in-water multicolor paint of claim 6, which is characterized in that: the preparation of the base paint comprises the following steps: adding deionized water into a base paint preparation kettle at room temperature, regulating the rotation speed of a dispersion machine to 200-400r/min, sequentially adding a bactericide, a dispersing agent and a defoaming agent, keeping the rotation speed and stirring for 3-5min, adding powder filler, quartz sand and cellulose, increasing the rotation speed to 500-600r/min, adding a pH regulator, increasing the rotation speed to 1000-1200r/min, stopping the machine for sampling after dispersing for 15-30min, starting the machine for stirring after testing that the fineness is lower than 50 mu m and passing the test, reducing the rotation speed to 800-900r/min, sequentially adding a polyurethane emulsion, a film-forming assistant, propylene glycol, a cross-linking agent, a defoaming agent, a thickening agent, a bactericide and a protective adhesive, and continuously stirring for 10-20min to obtain the base paint for later use.
8. The method for preparing the sand-in-water multicolor paint as claimed in claim 6, wherein the method comprises the following steps: preparing the protective glue solution: adding deionized water into a stirring kettle at room temperature, adjusting the rotating speed of a dispersion machine to be 300-500r/min, adding protective glue, increasing the rotating speed to 700-800r/min, and dispersing for 1-2 hours to obtain the protective glue solution for later use.
9. The method for preparing the sand-in-water multicolor paint as claimed in claim 6, wherein the method comprises the following steps: preparation of continuous phase emulsion: adding the polyurethane emulsion into a stirring kettle at room temperature, increasing the rotating speed to 300-500r/min, sequentially adding the film-forming aid, the propylene glycol, the cross-linking agent and the pH regulator, increasing the rotating speed to 700-900r/min, dispersing for 10-20min, adding the defoaming agent, the bactericide, the thickening agent and the deionized water, and dispersing for 10-20min to obtain the continuous phase emulsion for later use.
10. Use of the sand-in-water multicolor paint of any of claims 1-5 to surface treat a metal substrate.
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| US20100081742A1 (en) * | 2007-03-14 | 2010-04-01 | James Moore | Water-based polyurethane pigmented coating |
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Denomination of invention: A Water in Sand Colorful Coating and Its Preparation Method and Application Effective date of registration: 20231031 Granted publication date: 20221202 Pledgee: China Everbright Bank Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN FIRST NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980063583 |
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