CN113604081A - Low-temperature film-forming real stone paint and preparation process thereof - Google Patents

Low-temperature film-forming real stone paint and preparation process thereof Download PDF

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CN113604081A
CN113604081A CN202111021494.8A CN202111021494A CN113604081A CN 113604081 A CN113604081 A CN 113604081A CN 202111021494 A CN202111021494 A CN 202111021494A CN 113604081 A CN113604081 A CN 113604081A
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film
paint
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real stone
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鲁文停
程金龙
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Fujian Sankeshu New Material Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D1/00Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/43Thickening agents
    • C09D7/44Combinations of two or more thickening agents
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • C09D7/62Additives non-macromolecular inorganic modified by treatment with other compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/65Additives macromolecular

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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Abstract

The invention relates to a low-temperature film-forming stone-like paint and a preparation process thereof, wherein the stone-like paint is prepared from the following base materials and aggregate in parts by weight of 25-27: 73 are mixed and prepared; the base material is mainly prepared from the following components in parts by weight:

Description

Low-temperature film-forming real stone paint and preparation process thereof
Technical Field
The invention relates to a low-temperature film-forming real stone paint and a preparation process thereof, which are applied to the field of production of real stone paints.
Background
In recent years, the stone-like effect and excellent performance of the stone-like paint are more and more favored by consumers, the sales volume thereof is increased day by day, and the market share is gradually increased. However, because the real stone paint is thick paste type paint, the thickness of the paint film is about 5-10 times of that of the traditional emulsion paint and multicolor paint, and the like, so the real stone paint often has a series of problems of low paint film drying speed, low initial strength, poor water-white resistance and the like during construction in autumn and winter and in low-temperature and high-humidity areas. Particularly in northern areas, because the temperature is low in the early winter, the traditional real stone paint has no way of construction when the temperature is lower than 5 ℃, but many customers forcibly construct the real stone paint for reaching the construction period, so that the problems of incapability of forming a film, low initial strength of the paint film, cracking, flowering and the like are finally caused, and the construction period is greatly prolonged. In contrast, the traditional solution is to use an oily stone-like paint, which is added with a large amount of film-forming additives, and is being gradually eliminated at present due to the strong smell and extreme environmental pollution.
Therefore, it is desirable to provide a low-temperature film-forming stone-like paint which can be formed at a low temperature (below 0 ℃), has a fast coating film drying speed, is environmentally friendly, has low odor, and has high initial strength, and a preparation process thereof.
Disclosure of Invention
In order to overcome the defects of large amount of film forming auxiliary agents, large smell, no environmental protection, low drying speed of a paint film, low initial strength and the like of the existing stone-like paint, the invention provides the low-temperature film forming stone-like paint and the preparation process thereof.
The technical scheme of the invention is as follows:
the low-temperature film-forming real stone paint comprises the following base materials and aggregate in parts by weight of 25-27: 73 are mixed and prepared; the base material is mainly prepared from the following components in parts by weight:
Figure BDA0003242118160000011
Figure BDA0003242118160000021
the special modified bentonite is organic high polymer modified lithium-based sheet silicate;
the low-temperature self-filming emulsion is synthesized by internal plasticizing monomers;
the aggregate is formed by mixing 40-80 mesh natural colored sand and 80-120 mesh natural colored sand, wherein the 40-80 mesh natural colored sand accounts for 18-22% of the total weight of the aggregate.
The low-temperature film-forming real stone paint adopts the compounding of low-temperature self-film-forming emulsion, special modified bentonite and pure acrylic elastic emulsion, is matched with other preferable component types and dosage proportions, has the advantages of low-temperature self-film forming, high film drying speed, environmental protection, low odor, high initial strength and the like, and can better deal with and solve the construction problems in autumn and winter and in low-temperature and high-humidity areas. The low-temperature self-film-forming emulsion adopts a block internal plasticizing core-shell polymerization technology, and introduces a plasticizing functional monomer (internal plasticizing monomer) through a core segment, so that a high-molecular chain segment is endowed with excellent winding capacity, and the emulsion is ensured to have excellent low-temperature film-forming property. Meanwhile, hydrophobic branched chains are embedded in the high-molecular chain segments of the shell segments, so that the latex particles are endowed with soft and hard combination capacity, and the paint film is ensured to have excellent water-white resistance and stability. The low-temperature film-forming real stone paint does not need to be added with any film-forming auxiliary agent, and meanwhile, the paint film of the low-temperature film-forming real stone paint has excellent low-temperature high-humidity water whitening resistance and excellent bonding strength. The low-temperature self-film-forming emulsion is matched with the pure acrylic elastic emulsion, so that the pigment carrying capacity of a system is high, the strength, weather resistance and color retention of a paint film can be improved, the standing property of the aggregate of the real stone paint is high due to the addition and matching of the special modified bentonite, the water volatilization of the paint film can be accelerated, and the actual drying time and the surface drying time can be shortened. Compared with the existing stone-like paint added with the film-forming auxiliary agent, the finally prepared low-temperature self-film-forming emulsion of the scheme has the following main advantages: the paint film does not need to add other film forming auxiliary agents, antifreeze agents and the like, so that the VOC content of the system is greatly reduced, and meanwhile, the pungent smell of construction can be greatly reduced; the surface drying full-dry time and the initial strength of the paint film are improved by more than 1 time, the paint film can be well adapted to construction environments in autumn and winter and in low-temperature and high-humidity areas, meanwhile, the overall performance of the paint film is excellent, the paint film completely meets the relevant standards of JG/T24-2018 external walls and HJ 2537-.
Wherein, preferably, the water is industrial tap water, and has wide sources and low cost.
The internal plasticizing monomer comprises 2-ethylhexyl acrylate and diallyl phthalate, and the weight part ratio of the 2-ethylhexyl acrylate to the diallyl phthalate is 2.5-3.5: 2.
The low-temperature self-film-forming emulsion synthesized by the internal plasticizing monomer is preferably selected, so that the surface drying speed of a paint film is higher, the film-forming efficiency is higher, the bonding strength is higher, and the initial strength and the water resistance of the paint film can be further and quickly improved.
The cellulose is ethyl hydroxyethyl cellulose, and the thickener is one or any combination of two of a hydrophobic modified alkali swelling thickener or a polyurethane thickener.
The water retention of the optimized cellulose is equivalent to that of the traditional hydroxyethyl cellulose, but the water resistance is more excellent, and the optimized cellulose is matched with the optimized thickening agent, so that the spraying atomization performance of the paint vehicle is good, the low, medium and high shear viscosity is mutually considered, the good anti-precipitation water separation performance and the construction sand falling rate of the finished paint can be ensured, and the integral storage performance and the construction performance of the paint vehicle are provided.
The thickening agent is prepared by mixing a hydrophobic modified alkali swelling thickening agent and a polyurethane thickening agent according to the weight ratio of 1:3-1: 1.
The preferable thickening agent can balance the construction sand-removing rate and the surface effect of the paint film.
The antifreeze agent is ethylene glycol.
The whole freezing resistance of the system is further improved by optimizing the type of the antifreeze.
The defoaming agent is an NXZ type defoaming agent.
The preferable type of the defoaming agent enables the defoaming effect in the system preparation process to be better.
The preparation process of the low-temperature film-forming real stone paint mainly comprises the following steps of:
(1) adding water into a dispersion machine container, adjusting the dispersion rotation speed of the dispersion machine to 1000-1200 r/min, then sequentially and slowly adding cellulose and special modified bentonite, dispersing for 3-5 min, then adding concentrated ammonia water, and continuously dispersing for 3-5 min until the dispersion is uniform;
(2) adjusting the dispersion rotation speed to 800-1000 rpm, and slowly adding the low-temperature self-film-forming emulsion and the pure acrylic elastic emulsion into the mixture obtained in the step (1) in sequence for dispersing for 5-8 minutes;
(3) maintaining the dispersion rotation speed of 800-;
(4) and uniformly mixing the base material and the aggregate to obtain the low-temperature film-forming real stone paint.
The preparation process of the low-temperature film-forming real stone paint is simple and convenient in steps, convenient to operate and beneficial to batch production.
Compared with the prior art, the method has the following advantages:
1) the low-temperature film-forming real stone paint adopts the compounding of low-temperature self-film-forming emulsion, special modified bentonite and pure acrylic elastic emulsion, is matched with other preferable component types and dosage proportions, has the advantages of low-temperature self-film forming, high film drying speed, environmental protection, low odor, high initial strength and the like, and can better deal with and solve the construction problems in autumn and winter and in low-temperature and high-humidity areas;
2) the low-temperature self-film-forming emulsion synthesized by the internal plasticizing monomer is preferably selected, so that the surface drying speed of a paint film is higher, the film-forming efficiency is higher, the bonding strength is higher, and the initial strength and the water resistance of the paint film can be further and quickly improved;
3) the ethyl hydroxyethyl cellulose is matched with the hydrophobic modified alkali swelling thickener and/or the polyurethane thickener, so that the paint has good spraying atomization performance and low, medium and high shear viscosity, the good anti-precipitation water separation performance and construction sand dropping rate of the finished paint can be ensured, and the integral storage performance and construction performance of the paint are provided;
4) the preparation process of the low-temperature film-forming real stone paint is simple and convenient in steps, convenient to operate and beneficial to batch production.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the embodiments of the specification.
Example 1
The low-temperature film-forming real stone paint is prepared by mixing the following base materials and aggregate according to the weight part ratio of 27: 73; the base material is mainly prepared from the following components in parts by weight:
Figure BDA0003242118160000041
the special modified bentonite is organic high polymer modified lithium-based sheet silicate;
the low-temperature self-filming emulsion is synthesized by internal plasticizing monomers;
the aggregate is formed by mixing 40-80 mesh natural colored sand and 80-120 mesh natural colored sand, wherein the 40-80 mesh natural colored sand accounts for 20% of the total weight of the aggregate.
The internal plasticizing monomer comprises 2-ethylhexyl acrylate and diallyl phthalate, and the weight part ratio of the 2-ethylhexyl acrylate to the diallyl phthalate is 3: 2.
The cellulose is ethyl hydroxyethyl cellulose. The thickening agent is prepared by mixing a hydrophobic modified alkali swelling thickening agent and a polyurethane thickening agent according to the weight ratio of 1: 1.
The antifreeze agent is ethylene glycol.
The defoaming agent is an NXZ type defoaming agent.
The preparation process of the low-temperature film-forming real stone paint mainly comprises the following steps of:
(1) adding water into a container of a dispersion machine, adjusting the dispersion rotation speed of the dispersion machine to 1100 r/min, then sequentially and slowly adding cellulose and special modified bentonite, dispersing for 4 min, then adding concentrated ammonia water, and continuously dispersing for 4 min until the mixture is uniformly dispersed;
(2) adjusting the dispersion speed to 900 revolutions per minute, and slowly adding the low-temperature self-filming emulsion and the pure acrylic elastic emulsion into the mixture obtained in the step (1) in sequence for dispersing for 6 minutes;
(3) maintaining the dispersion rotation speed of 900 revolutions per minute, sequentially adding a defoaming agent, a bactericide, an antifreeze agent and a thickening agent into the mixture obtained in the step (2), and dispersing for 8 minutes to obtain a base material;
(4) and uniformly mixing the base material and the aggregate to obtain the low-temperature film-forming real stone paint.
Example 2
The low-temperature film-forming real stone paint is prepared from the following base materials and aggregate in a weight ratio of 26: 73; the base material is mainly prepared from the following components in parts by weight:
Figure BDA0003242118160000051
the special modified bentonite is organic high polymer modified lithium-based sheet silicate;
the low-temperature self-filming emulsion is synthesized by internal plasticizing monomers;
the aggregate is formed by mixing 40-80 mesh natural colored sand and 80-120 mesh natural colored sand, wherein the 40-80 mesh natural colored sand accounts for 18 percent of the total weight of the aggregate.
The internal plasticizing monomer comprises 2-ethylhexyl acrylate and diallyl phthalate, and the weight part ratio of the 2-ethylhexyl acrylate to the diallyl phthalate is 3.5: 2.
The cellulose is ethyl hydroxyethyl cellulose, and the thickener is prepared by mixing a hydrophobic modified alkali swelling thickener and a polyurethane thickener according to the weight ratio of 1: 2.
The antifreeze agent is ethylene glycol.
The defoaming agent is an NXZ type defoaming agent.
The preparation process of the low-temperature film-forming real stone paint mainly comprises the following steps of:
(1) adding water into a container of a dispersion machine, adjusting the dispersion rotation speed of the dispersion machine to 1000 r/min, sequentially and slowly adding cellulose and special modified bentonite, dispersing for 5 min, then adding concentrated ammonia water, and continuously dispersing for 3 min until the mixture is uniformly dispersed;
(2) adjusting the dispersion speed to 800 revolutions per minute, and slowly adding the low-temperature self-filming emulsion and the pure acrylic elastic emulsion into the mixture obtained in the step (1) in sequence for dispersing for 8 minutes;
(3) maintaining the dispersion rotation speed of 800 revolutions per minute, sequentially adding a defoaming agent, a bactericide, an antifreeze agent and a thickening agent into the mixture obtained in the step (2), and dispersing for 5 minutes to obtain a base material;
(4) and uniformly mixing the base material and the aggregate to obtain the low-temperature film-forming real stone paint.
Example 3
The low-temperature film-forming real stone paint is prepared by mixing the following base materials and aggregate according to the weight part ratio of 25: 73; the base material is mainly prepared from the following components in parts by weight:
Figure BDA0003242118160000061
the special modified bentonite is organic high polymer modified lithium-based sheet silicate;
the low-temperature self-filming emulsion is synthesized by internal plasticizing monomers;
the aggregate is formed by mixing 40-80 mesh natural colored sand and 80-120 mesh natural colored sand, wherein the 40-80 mesh natural colored sand accounts for 22 percent of the total weight of the aggregate.
The internal plasticizing monomer comprises 2-ethylhexyl acrylate and diallyl phthalate, and the weight part ratio of the 2-ethylhexyl acrylate to the diallyl phthalate is 2.5: 2.
The cellulose is ethyl hydroxyethyl cellulose, and the thickener is prepared by mixing a hydrophobic modified alkali swelling thickener and a polyurethane thickener according to the weight ratio of 1: 3.
The antifreeze agent is ethylene glycol.
The defoaming agent is an NXZ type defoaming agent.
The preparation process of the low-temperature film-forming real stone paint mainly comprises the following steps of:
(1) adding water into a container of a dispersion machine, adjusting the dispersion rotation speed of the dispersion machine to 1200 r/min, sequentially and slowly adding cellulose and special modified bentonite, dispersing for 3 min, then adding concentrated ammonia water, and continuously dispersing for 5 min until the mixture is uniformly dispersed;
(2) adjusting the dispersion speed to 1000 r/min, and slowly adding the low-temperature self-filming emulsion and the pure acrylic elastic emulsion into the mixture obtained in the step (1) in sequence for dispersing for 5 min;
(3) maintaining the dispersion rotation speed of 1000 revolutions per minute, sequentially adding a defoaming agent, a bactericide, an antifreeze agent and a thickening agent into the mixture obtained in the step (2), and dispersing for 10 minutes to obtain a base material;
(4) and uniformly mixing the base material and the aggregate to obtain the low-temperature film-forming real stone paint.
Raw material information related to each example:
natural color sand: henan Fuyixin Co., 20-180 mesh
Ethyl hydroxyethyl cellulose: aksu 481FQ
Special modified bentonite: shanghai grid V448
Concentrated ammonia water: the science of West Long Guo is that the concentration of ammonia is 25% -28%
Low-temperature self-filming emulsion: ba De Fu RS-9078
Pure acrylic elastic emulsion: bardfy RS-9699
Defoaming agent: NXZ type defoaming agent for Hangao Kening
And (3) bactericide: HF type disinfectant manufactured by Thor, and EPW type disinfectant manufactured by Thor
An antifreeze agent: xiamenxin continuous-production glycol
Thickening agent: a hydrophobic modified alkali swelling thickener of Dow chemical DR-50 and a polyurethane thickener of Dow chemical RM-8W.
Experimental data:
paint film performance detection of low-temperature film-forming real stone paint in one embodiment and each embodiment
The detection method comprises the following steps: reference JB/T24-2018 external wall Standard
The detection results are as follows:
TABLE 1 film property test results of low-temperature film-forming real stone paint in each example
Figure BDA0003242118160000071
Figure BDA0003242118160000081
Second, the environmental protection performance of the low-temperature film-forming real stone paint of each embodiment is tested
The detection method comprises the following steps: standard of reference HJ 2537-2014 environmental Mark product technical requirement Water-based paint
The detection results are as follows:
table 2 test results of environmental protection performance of low-temperature film-forming real stone paint in each example
Figure BDA0003242118160000091
Figure BDA0003242118160000101
According to the test results of the embodiments, the low-temperature film-forming real stone paint prepared by the method has the advantages of good low-temperature self-film-forming property (below 0 ℃), high coating film drying speed, environmental protection, low odor, high initial strength and the like, all performance indexes of the paint meet the standards of HJ/T24-2018 'exterior wall', all environmental protection performance parameters can meet the standard requirements of HJ 2537-.
The low-temperature film-forming real stone paint and the preparation process thereof are not limited to the above embodiments, and any modification or replacement according to the principles of the present invention should be within the protection scope of the present invention.

Claims (7)

1. The low-temperature film-forming real stone paint is characterized in that: the composite material is prepared from the following base materials and aggregate in parts by weight of 25-27: 73 are mixed and prepared; the base material is mainly prepared from the following components in parts by weight:
Figure FDA0003242118150000011
the special modified bentonite is organic high polymer modified lithium-based sheet silicate;
the low-temperature self-filming emulsion is synthesized by internal plasticizing monomers;
the aggregate is formed by mixing 40-80 mesh natural colored sand and 80-120 mesh natural colored sand, wherein the 40-80 mesh natural colored sand accounts for 18-22% of the total weight of the aggregate.
2. The low-temperature film-forming real stone paint as claimed in claim 1, wherein: the internal plasticizing monomer comprises 2-ethylhexyl acrylate and diallyl phthalate, and the weight part ratio of the 2-ethylhexyl acrylate to the diallyl phthalate is 2.5-3.5: 2.
3. The low-temperature film-forming real stone paint as claimed in claim 1, wherein: the cellulose is ethyl hydroxyethyl cellulose, and the thickener is one or any combination of two of a hydrophobic modified alkali swelling thickener or a polyurethane thickener.
4. The low-temperature film-forming real stone paint as claimed in claim 3, wherein: the thickening agent is prepared by mixing a hydrophobic modified alkali swelling thickening agent and a polyurethane thickening agent according to the weight ratio of 1:3-1: 1.
5. The low-temperature film-forming real stone paint as claimed in claim 1, wherein: the antifreeze agent is ethylene glycol.
6. The low-temperature film-forming real stone paint as claimed in claim 1, wherein: the defoaming agent is an NXZ type defoaming agent.
7. The process for preparing a low-temperature film-forming real stone paint as claimed in any one of claims 1 to 6, wherein: mainly comprises the following steps which are carried out in sequence:
(1) adding water into a dispersion machine container, adjusting the dispersion rotation speed of the dispersion machine to 1000-1200 revolutions per minute, then sequentially and slowly adding cellulose and special modified bentonite, dispersing for 3-5 minutes, then adding concentrated ammonia water, and continuously dispersing for 3-5 minutes until the dispersion is uniform;
(2) adjusting the dispersion rotation speed to 800-1000 rpm, and slowly adding the low-temperature self-film-forming emulsion and the pure acrylic elastic emulsion into the mixture obtained in the step (1) in sequence for dispersing for 5-8 minutes;
(3) maintaining the dispersion rotation speed of 800-;
(4) and uniformly mixing the base material and the aggregate to obtain the low-temperature film-forming real stone paint.
CN202111021494.8A 2021-09-01 2021-09-01 Low-temperature film-forming real stone paint and preparation process thereof Pending CN113604081A (en)

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CN106590268A (en) * 2016-11-14 2017-04-26 北京卫星制造厂 Real-stone paint and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114989685A (en) * 2022-06-14 2022-09-02 亚士创能科技(石家庄)有限公司 Texture paint and preparation method thereof
CN114989685B (en) * 2022-06-14 2023-08-11 亚士创能科技(石家庄)有限公司 Texture paint and preparation method thereof

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