Bio-based real stone paint and preparation method thereof

Abstract

The invention provides a bio-based real stone paint and a preparation method thereof. The invention discloses bio-based real stone paint. The bio-based real stone paint is prepared from the following raw materials: a base material and a solvent, the base material is prepared from the following raw materials in parts by mass: 50-100 parts of bio-based resin, 30-50 parts of high-temperature-resistant resin, 10-20 parts of silicon carbide, 10-15 parts of zirconium dioxide, 5-10 parts of aluminum oxide and 15-20 parts of quartz sand; the weight ratio of the base material to the solvent is 1: (1-3). The bio-based real stone paint provided by the invention is relatively good in heat resistance, and is not easy to deform or soften in a long-term high-temperature environment, so that the normal decorative effect of the real stone paint is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of real stone paint, and in particular to a bio-based real stone paint and a preparation method thereof. Background Art

[0002] Bio-based real stone paint is real stone paint produced with biomass as raw material, where biomass is various organisms formed through photosynthesis, including materials derived from all living things such as animals, plants and microorganisms.

[0003] At present, the traditional bio-based real stone paint on the market has poor high temperature resistance. Under long-term high temperature conditions, the surface of the bio-based real stone paint may deform or soften, and even produce foam, thus affecting its overall performance and decorative effect. Summary of the invention

[0004] The invention provides a bio-based real stone paint and a preparation method thereof. The prepared bio-based real stone paint has good heat resistance and is not prone to deformation or softening in a long-term high temperature environment.

[0005] According to one object of the present invention, a bio-based real stone paint is provided, the raw materials of the bio-based real stone paint include a base material and a solvent; calculated by weight, the raw materials used to prepare the base material include: 50 to 100 parts of a bio-based resin, 30 to 50 parts of a high temperature resistant resin, 10 to 20 parts of silicon carbide, 10 to 15 parts of zirconium dioxide, 5 to 10 parts of aluminum oxide, and 15 to 20 parts of quartz sand; the weight ratio of the base material to the solvent is 1:(1 to 3).

[0006] Preferably, calculated by weight, the raw materials used to prepare the solvent include: 100-150 parts of film-forming aid, 20-30 parts of ethylene glycol, 15-20 parts of defoaming agent, 30-50 parts of high temperature resistant solvent, 10-20 parts of high temperature resistant aid, 3-5 parts of thickener, and 7-10 parts of thermal stabilizer.

[0007] Preferably, the raw materials for preparing the bio-based resin include: vegetable oil, starch, cellulose, and the weight ratio of the vegetable oil, starch, and cellulose is 2:5:(3-7).

[0008] In the process of preparing bio-based resins, these biomass resources can be converted into bio-based resins with coating application properties through esterification, polycondensation, polymerization and other reaction processes, so as to realize the preparation of bio-based real stone paint.

[0009] Preferably, the raw materials for preparing the high temperature resistant resin include: silicone resin, polyimide resin, polyphenylene sulfide resin, and the weight ratio of the silicone resin, polyimide resin, and polyphenylene sulfide resin is (3-5): (2-4):3.

[0010] Silicone resin, polyimide resin, polyphenylene sulfide resin, etc. all have excellent high temperature resistance. The high temperature resistant resin prepared by mixing them can maintain the stability and performance of the coating in a high temperature environment.

[0011] Preferably, the raw materials for preparing the defoaming agent include: polydimethylsiloxane, mineral oil, ethylene bisstearamide, and ethylene glycol, and the weight ratio of polydimethylsiloxane, mineral oil, ethylene bisstearamide, and ethylene glycol is 2:1:(3-5):1.

[0012] By using a high temperature resistant defoamer prepared with polydimethylsiloxane, mineral oil, ethylene bisstearamide and ethylene glycol, it can be ensured that the coating still has good defoaming performance at high temperatures, avoiding the influence of bubbles on the coating performance.

[0013] Preferably, the raw materials for preparing the high temperature resistant solvent include γ-butyrolactone, propylene carbonate and oxazolidine, and the weight ratio of γ-butyrolactone, propylene carbonate and oxazolidine is (2-4): (1-3): (1-5).

[0014] Y-butyrolactone is a colorless oily liquid with a high boiling point. It is miscible with water, alcohol, ester and aromatic hydrocarbons, and is limitedly soluble in aliphatic hydrocarbons and cycloalkanes. Propylene carbonate is a low-viscosity, high-boiling-point compound with biodegradability. The hydrolysis activity of oxazolidine is lower than that of aldehydes, ketones and imines, and has good stability. The high-temperature resistant solvent prepared by mixing them can greatly improve the high-temperature resistance of the coating after preparation.

[0015] Preferably, the raw materials for preparing the high temperature resistant additive include magnesium oxide and montmorillonite, and the weight ratio of magnesium oxide to montmorillonite is (1-3): (0.5-1.5).

[0016] By adding high temperature resistant additives, the resistance of the coating in long-term high temperature environment can be further improved.

[0017] According to another aspect of the present invention, a method for preparing a bio-based real stone paint is provided, comprising the following steps:

[0018] S1. Mix the bio-based resin, high temperature resistant resin, silicon carbide, zirconium dioxide, aluminum oxide and quartz sand, stir evenly to obtain a base material;

[0019] S2. Mix the film-forming aid, ethylene glycol and thickener in a vacuum mixer, add the base material and mix, then add the defoamer, high temperature resistant solvent, high temperature resistant aid and heat stabilizer to react and obtain bio-based real stone paint.

[0020] Preferably, in step S1, the stirring temperature is 50-60° C., and the stirring speed is 150-200 rpm.

[0021] Preferably, after the stirring in step S1 is completed, the stirred mixture is allowed to stand at room temperature for 20 to 28 hours.

[0022] Preferably, the vacuum stirring in step S2 has a stirring time of 80 to 100 min, a temperature of 150 to 200° C., and a stirring rate of 200 to 300 rpm.

[0023] Preferably, the reaction temperature of the mixing reaction in step S2 is 20-30° C., and the stirring rate is 300-500 rpm.

[0024] The beneficial effects of the present invention are: by adding high temperature resistant resin, defoaming agent, high temperature resistant solvent and high temperature resistant auxiliary agent, the heat resistance of the real stone paint can be improved, and the real stone paint is not easy to deform or soften in a long-term high temperature environment, so as to ensure the normal decorative effect of the real stone paint. DETAILED DESCRIPTION

[0025] The following is a further clear and complete description of the technical features in the technical solution provided by the present invention in conjunction with the specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] Example 1

[0027] This embodiment provides a bio-based real stone paint, and the preparation method thereof comprises the following steps:

[0028] S1. 50 parts by weight of a bio-based resin, 30 parts by weight of a high temperature resistant resin, 10 parts by weight of silicon carbide, 10 parts by weight of zirconium dioxide, 5 parts by weight of aluminum oxide, 15 parts by weight of quartz sand were mixed and stirred to obtain a base material;

[0029] S2. Mix 100 parts by weight of film-forming aid, 20 parts by weight of ethylene glycol, and 3 parts by weight of thickener in a vacuum mixer, add the base material and mix, then add 15 parts by weight of defoamer, 30 parts by weight of high temperature resistant solvent, 10 parts by weight of high temperature resistant aid, and 7 parts by weight of heat stabilizer to react and obtain bio-based real stone paint.

[0030] The raw materials used to prepare the bio-based resin include: vegetable oil, starch, cellulose, and the weight ratio of vegetable oil, starch, and cellulose is 2:5:3;

[0031] The raw materials used to prepare the high temperature resistant resin include: silicone resin, polyimide resin, polyphenylene sulfide resin, and the weight ratio of silicone resin, polyimide resin, and polyphenylene sulfide resin is 3:2:3;

[0032] The raw materials used to prepare the defoaming agent include: polydimethylsiloxane, mineral oil, ethylene bis stearamide, and ethylene glycol, and the weight ratio of polydimethylsiloxane, mineral oil, ethylene bis stearamide, and ethylene glycol is 2:1:3:1;

[0033] The raw materials used to prepare the high temperature resistant solvent include: γ-butyrolactone, propylene carbonate, and oxazolidine copolymerized, and the weight ratio of γ-butyrolactone, propylene carbonate, and oxazolidine is 2:1:1;

[0034] The raw materials used to prepare the high temperature resistant additive include magnesium oxide and montmorillonite, and the weight ratio of magnesium oxide to montmorillonite is 1:0.5.

[0035] Example 2

[0036] This embodiment provides a bio-based real stone paint, and the preparation method thereof comprises the following steps:

[0037] S1. 75 parts by weight of a bio-based resin, 40 parts by weight of a high temperature resistant resin, 15 parts by weight of silicon carbide, 12 parts by weight of zirconium dioxide, 7 parts by weight of aluminum oxide, and 17 parts by weight of quartz sand were mixed and stirred to obtain a base material;

[0038] S2. Mix 125 parts by weight of film-forming aid, 25 parts by weight of ethylene glycol, and 4 parts by weight of thickener in a vacuum mixer, add the base material and mix, then add 17 parts by weight of defoamer, 40 parts by weight of high temperature resistant solvent, 15 parts by weight of high temperature resistant aid, and 9 parts by weight of heat stabilizer to react and obtain bio-based real stone paint.

[0039] The raw materials used to prepare the bio-based resin include: vegetable oil, starch, and cellulose, and the weight ratio of vegetable oil, starch, and cellulose is 2:5:5;

[0040] The raw materials used to prepare the high temperature resistant resin include: silicone resin, polyimide resin, polyphenylene sulfide resin, and the weight ratio of silicone resin, polyimide resin, and polyphenylene sulfide resin is 4:3:3;

[0041] The raw materials used to prepare the defoaming agent include: polydimethylsiloxane, mineral oil, ethylene bis stearamide, and ethylene glycol, and the weight ratio of polydimethylsiloxane, mineral oil, ethylene bis stearamide, and ethylene glycol is 2:1:4:1;

[0042] The raw materials used to prepare the high temperature resistant solvent include: γ-butyrolactone, propylene carbonate, and oxazolidine copolymerized, and the weight ratio of γ-butyrolactone, propylene carbonate, and oxazolidine is 3:2:3;

[0043] The raw materials used to prepare the high temperature resistant additive include magnesium oxide and montmorillonite, and the weight ratio of magnesium oxide to montmorillonite is 2:1.

[0044] Example 3

[0045] This embodiment provides a bio-based real stone paint, and the preparation method thereof comprises the following steps:

[0046] S1. 100 parts by weight of a bio-based resin, 50 parts by weight of a high temperature resistant resin, 20 parts by weight of silicon carbide, 15 parts by weight of zirconium dioxide, 10 parts by weight of aluminum oxide, 20 parts by weight of quartz sand were mixed and stirred to obtain a base material;

[0047] S2. Mix 150 parts by weight of film-forming aid, 30 parts by weight of ethylene glycol, and 5 parts by weight of thickener in a vacuum mixer, add the base material and mix, then add 20 parts by weight of defoamer, 50 parts by weight of high temperature resistant solvent, 20 parts by weight of high temperature resistant aid, and 10 parts by weight of heat stabilizer to react and obtain bio-based real stone paint.

[0048] The raw materials used to prepare the bio-based resin include: vegetable oil, starch, and cellulose, and the weight ratio of vegetable oil, starch, and cellulose is 2:5:7;

[0049] The raw materials used to prepare the high temperature resistant resin include: silicone resin, polyimide resin, polyphenylene sulfide resin, and the weight ratio of silicone resin, polyimide resin, and polyphenylene sulfide resin is 5:4:3;

[0050] The raw materials used to prepare the defoaming agent include: polydimethylsiloxane, mineral oil, ethylene bis stearamide, and ethylene glycol, and the weight ratio of polydimethylsiloxane, mineral oil, ethylene bis stearamide, and ethylene glycol is 2:1:5:1;

[0051] The raw materials used to prepare the high temperature resistant solvent include: γ-butyrolactone, propylene carbonate, and oxazolidine copolymerized, and the weight ratio of γ-butyrolactone, propylene carbonate, and oxazolidine is 4:3:5;

[0052] The raw materials used to prepare the high temperature resistant additive include magnesium oxide and montmorillonite, and the weight ratio of magnesium oxide to montmorillonite is 3:1.5.

[0053] Example 4

[0054] This embodiment provides a bio-based real stone paint. Compared with the embodiment 1, the difference in structure is that the raw materials used to prepare the bio-based resin include: vegetable oil and starch, and the vegetable oil and starch are mixed in a mass ratio of 2:5. Except for the above differences, the materials, formula ratios and preparation operations used in this embodiment are strictly consistent with those in the embodiment 1.

[0055] Example 5

[0056] This embodiment provides a bio-based real stone paint. Compared with the embodiment 1, the difference in structure is that the raw materials used to prepare the high temperature resistant resin include: silicone resin and polyimide resin, and the silicone resin and polyimide resin are mixed in a mass ratio of 4:3. Except for the above differences, the materials, formula ratios and preparation operations used in this embodiment are strictly consistent with those in the embodiment 1.

[0057] Example 6

[0058] This embodiment provides a bio-based real stone paint. Compared with the embodiment 1, the difference in composition is that the raw materials used to prepare the defoamer include: polydimethylsiloxane and mineral oil, and the polydimethylsiloxane and mineral oil are mixed in a mass ratio of 2:1. Except for the above differences, the materials, formula ratios and preparation operations used in this embodiment are strictly consistent with those in the embodiment 1.

[0059] Example 7

[0060] This embodiment provides a bio-based real stone paint. Compared with Example 1, the difference in composition is that the raw materials used to prepare the high temperature resistant solvent include: γ-butyrolactone and propylene carbonate, and γ-butyrolactone and propylene carbonate are mixed in a mass ratio of 3:2. Except for the above differences, the materials, formula ratios and preparation operations used in this embodiment are strictly consistent with those in Example 1.

[0061] Example 8

[0062] This embodiment provides a bio-based real stone paint, and compared with the embodiment 1, the difference in structure is that the raw materials used to prepare the high temperature resistant additive only include magnesium oxide. In addition to the above differences, the materials, formula ratios and preparation operations used in this embodiment are strictly consistent with those in the embodiment 1.

[0063] Comparative Example 1

[0064] This comparative example provides a bio-based real stone paint commonly found on the market.

[0065] Test Case

[0066] 1. Test subjects

[0067] In this test example, the bio-based real stone paint prepared in Examples 1 to 8 and the bio-based real stone paint provided in Comparative Example 1 were used as test objects to conduct relevant performance tests.

[0068] 2. Test content

[0069] The bio-based real stone paint in Examples 1 to 8 and Comparative Example 1 was selected for coating test, and the wall surface was used as the coating surface. The experiment was carried out indoors and irradiated with a high-temperature lamp at 75°C. The indoor experimental environment should keep the coating surface ventilated, and the coatings should be 1.2 to 1.5 m apart.

[0070] 3. Test results

[0071] Table 1 Related test performance results of bio-based real stone paint

[0072]

[0073]

[0074] The relevant performance test results of the bio-based real stone paint provided in Examples 1 to 8 and Comparative Example 1 are shown in Table 1.

[0075] In the present invention, the heat resistance of the real stone paint can be improved by adding high temperature resistant resin, defoamer, high temperature resistant solvent and high temperature resistant auxiliary agent, so as to ensure that the real stone paint is not easy to deform or soften in a long-term high temperature environment, so as to ensure the normal decorative effect of the real stone paint.

[0076] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bio-based real stone paint, characterized in that: The raw materials of the bio-based real stone paint include base material and solvent; Calculated by weight, the raw materials used to prepare the base material include: 50-100 parts of bio-based resin, 30-50 parts of high temperature resistant resin, 10-20 parts of silicon carbide, 10-15 parts of zirconium dioxide, 5-10 parts of aluminum oxide, and 15-20 parts of quartz sand; The weight ratio of the base material to the solvent is 1:(1-3).

2. The bio-based real stone paint according to claim 1, characterized in that: Calculated by mass, the raw materials used to prepare the solvent include: 100-150 parts of film-forming aid, 20-30 parts of ethylene glycol, 15-20 parts of defoaming agent, 30-50 parts of high temperature resistant solvent, 10-20 parts of high temperature resistant aid, 3-5 parts of thickener, and 7-10 parts of thermal stabilizer.

3. The bio-based real stone paint according to claim 1, characterized in that: The raw materials used to prepare the bio-based resin include: vegetable oil, starch, and cellulose, and the weight ratio of the vegetable oil, the starch, and the cellulose is 2:5:(3-7).

4. The bio-based real stone paint according to claim 1, characterized in that: The raw materials used to prepare the high temperature resistant resin include: silicone resin, polyimide resin, polyphenylene sulfide resin, and the weight ratio of the silicone resin, the polyimide resin, and the polyphenylene sulfide resin is (3-5): (2-4):

3.

5. The bio-based real stone paint according to claim 2, characterized in that: The raw materials used to prepare the defoaming agent include: polydimethylsiloxane, mineral oil, ethylene bisstearamide, and ethylene glycol, and the weight ratio of the polydimethylsiloxane, the mineral oil, the ethylene bisstearamide, and the ethylene glycol is 2:1:(3-5):

1.

6. The bio-based real stone paint according to claim 2, characterized in that: The raw materials used to prepare the high temperature resistant solvent include γ-butyrolactone, propylene carbonate, and oxazolidine, and the weight ratio of the γ-butyrolactone, the propylene carbonate, and the oxazolidine is (2-4): (1-3): (1-5).

7. The bio-based real stone paint according to claim 2, characterized in that: The raw materials used to prepare the high temperature resistant auxiliary agent include magnesium oxide and montmorillonite, and the weight ratio of the magnesium oxide to the montmorillonite is (1-3): (0.5-1.5).

8. A method for preparing the bio-based real stone paint according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. The bio-based resin, the high temperature resistant resin, the silicon carbide, the zirconium dioxide, the aluminum oxide, and the quartz sand are mixed and stirred to obtain a base material; S2. Mix the film-forming aid, the ethylene glycol, and the thickener in a vacuum mixer, add the base material to mix, then add the defoamer, the high temperature resistant solvent, the high temperature resistant aid, and the heat stabilizer to react and obtain a bio-based real stone paint.

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