A bio-based stone paint and its preparation method

Abstract

This invention provides a bio-based stone-like paint and its preparation method. The bio-based stone-like paint comprises a base material and a solvent. The base material, calculated by weight, includes: 50-100 parts bio-based resin, 30-50 parts high-temperature resistant resin, 10-20 parts silicon carbide, 10-15 parts zirconium dioxide, 5-10 parts aluminum oxide, and 15-20 parts quartz sand. The weight ratio of the base material to the solvent is 1:(1-3). The bio-based stone-like paint provided by this invention has good heat resistance and is not prone to deformation or softening under long-term high-temperature environments, thus ensuring the normal decorative effect of the stone-like paint.

Description

Technical Field

[0001] This invention relates to the field of stone paint technology, and in particular to a bio-based stone paint and its preparation method. Background Technology

[0002] Bio-based stone paint is a type of stone paint produced using biomass as raw material. Biomass is a material derived from various organic organisms formed through photosynthesis, including all living organisms such as animals, plants, and microorganisms.

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

[0004] This invention provides a bio-based stone paint and its preparation method. The bio-based stone paint has good heat resistance and is not prone to deformation or softening under long-term high-temperature conditions.

[0005] According to one objective of the present invention, a bio-based stone paint is provided, wherein the raw materials of the bio-based stone paint include a base material and a solvent; the raw materials used to prepare the base material, calculated by mass parts, 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).

[0006] Preferably, the raw materials used to prepare the solvent, calculated by mass parts, include: 100-150 parts of film-forming aid, 20-30 parts of ethylene glycol, 15-20 parts of defoamer, 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 heat stabilizer.

[0007] Preferably, 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:(3-7).

[0008] In the process of preparing bio-based resins, through reactions such as esterification, polycondensation, and polymerization, these biomass resources can be transformed into bio-based resins with coating application properties, thereby realizing the preparation of bio-based stone paint.

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

[0010] Organosilicon resins, polyimide resins, and polyphenylene sulfide resins all have excellent high-temperature resistance. High-temperature resistant resins prepared by mixing these resins can maintain the stability and performance of the coating under high-temperature conditions.

[0011] Preferably, the raw materials used to prepare the defoamer 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:(3-5):1.

[0012] A high-temperature resistant defoamer prepared by using polydimethylsiloxane, mineral oil, ethylene bis-stearamide and ethylene glycol can ensure that the coating still has good defoaming performance at high temperatures, avoiding the impact of bubbles on the coating performance.

[0013] Preferably, the raw materials used to prepare the high-temperature resistant solvent include γ-butyrolactone, propylene carbonate, and azole, and the weight ratio of γ-butyrolactone, propylene carbonate, and azole 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, alcohols, esters, and aromatic hydrocarbons, but has limited solubility in aliphatic hydrocarbons and cycloalkanes. Propylene carbonate is a low-viscosity, high-boiling-point compound with biodegradable properties. Zolpidem exhibits lower hydrolytic activity than aldehydes, ketones, and imines, and demonstrates better stability. The high-temperature resistant solvent prepared by mixing these compounds can significantly improve the high-temperature resistance of the finished coating.

[0015] Preferably, 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 (1-3):(0.5-1.5).

[0016] The addition of high-temperature resistant additives can further improve the coating's resistance to long-term high-temperature environments.

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

[0018] S1. Mix bio-based resin, high-temperature resistant resin, silicon carbide, zirconium dioxide, aluminum oxide, and quartz sand, and stir evenly to obtain the 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 additive, and heat stabilizer and mix to obtain bio-based stone paint.

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

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

[0022] Preferably, in step S2, the vacuum stirring time is 80-100 min, the temperature is 150-200℃, and the stirring speed is 200-300 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 this invention are as follows: by adding high-temperature resistant resin, defoamer, high-temperature resistant solvent and high-temperature resistant additives, the heat resistance of the natural stone paint can be improved, and the natural stone paint is not prone to deformation or softening under long-term high temperature environment, so as to ensure the normal decorative effect of the natural stone paint. Detailed Implementation

[0025] The technical features of the technical solution provided by the present invention will be further clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] This embodiment provides a bio-based stone-like paint, the preparation method of which includes the following steps:

[0028] S1. Mix 50 parts by weight of bio-based resin, 30 parts by weight of 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, and 15 parts by weight of quartz sand, and stir evenly to obtain the 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 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 additive, and 7 parts by weight of heat stabilizer and mix to obtain bio-based stone paint.

[0030] The raw materials used to prepare bio-based resins include: vegetable oil, starch, and cellulose, with a weight ratio of 2:5:3.

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

[0032] The raw materials used to prepare the defoamer include: polydimethylsiloxane, mineral oil, ethylene bis-stearamide, and ethylene glycol, with a weight ratio of 2:1:3:1.

[0033] The raw materials used to prepare the high-temperature resistant solvent include: γ-butyrolactone, propylene carbonate, and azole alkyl copolymer, with a weight ratio of γ-butyrolactone, propylene carbonate, and azole alkyl in 2:1:1.

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

[0035] Example 2

[0036] This embodiment provides a bio-based stone-like paint, the preparation method of which includes the following steps:

[0037] S1. Mix 75 parts by weight of bio-based resin, 40 parts by weight of 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, and stir evenly to obtain the 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 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 additive, and 9 parts by weight of heat stabilizer and mix to obtain bio-based stone paint.

[0039] The raw materials used to prepare bio-based resins include: vegetable oil, starch, and cellulose, with a weight ratio of 2:5:5.

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

[0041] The raw materials used to prepare the defoamer include: polydimethylsiloxane, mineral oil, ethylene bis-stearamide, and ethylene glycol, with a weight ratio of 2:1:4:1.

[0042] The raw materials used to prepare the high-temperature resistant solvent include: γ-butyrolactone, propylene carbonate, and azole alkyl copolymer, with a weight ratio of γ-butyrolactone, propylene carbonate, and azole alkyl in 3:2:3.

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

[0044] Example 3

[0045] This embodiment provides a bio-based stone-like paint, the preparation method of which includes the following steps:

[0046] S1. Mix 100 parts by weight of bio-based resin, 50 parts by weight of 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, and 20 parts by weight of quartz sand, and stir evenly to obtain the 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 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 additive, and 10 parts by weight of heat stabilizer and mix to obtain bio-based stone paint.

[0048] The raw materials used to prepare bio-based resins include: vegetable oil, starch, and cellulose, with a weight ratio of 2:5:7.

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

[0050] The raw materials used to prepare the defoamer include: polydimethylsiloxane, mineral oil, ethylene bis-stearamide, and ethylene glycol, with a weight ratio of 2:1:5:1.

[0051] The raw materials used to prepare the high-temperature resistant solvent include: γ-butyrolactone, propylene carbonate, and azole alkyl copolymer, with a weight ratio of γ-butyrolactone, propylene carbonate, and azole alkyl in 4:3:5.

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

[0053] Example 4

[0054] This embodiment provides a bio-based stone paint. Compared with Example 1, the difference in composition 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. Apart from the above differences, the materials, formulation ratios, and preparation operations used in this embodiment are strictly consistent with those in Example 1.

[0055] Example 5

[0056] This embodiment provides a bio-based stone-like paint. Compared with Example 1, the difference in composition is that the raw materials used to prepare the high-temperature resistant resin include: organosilicon resin and polyimide resin, and the organosilicon resin and polyimide resin are mixed in a mass ratio of 4:3. Apart from the above differences, the materials, formulation ratios, and preparation operations used in this embodiment are strictly consistent with those in Example 1.

[0057] Example 6

[0058] This embodiment provides a bio-based stone-like paint. Compared with Example 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. Apart from the above differences, the materials, formulation ratios, and preparation operations used in this embodiment are strictly consistent with those in Example 1.

[0059] Example 7

[0060] This embodiment provides a bio-based stone-like 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. Apart from the above differences, the materials, formulation 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 stone-like paint. Compared with Example 1, the difference in composition is that the raw materials used to prepare the high-temperature resistant additives include only magnesium oxide. Apart from the above differences, the materials, formulation ratios, and preparation operations used in this embodiment are strictly consistent with those in Example 1.

[0063] Comparative Example 1

[0064] This comparative example provides a commonly available bio-based stone paint.

[0065] Test case

[0066] 1. Test Object

[0067] This test example uses the bio-based stone paint prepared in Examples 1-8 and the bio-based stone paint provided in Comparative Example 1 as test objects to conduct relevant performance tests.

[0068] 2. Test Content

[0069] The bio-based stone paints in Examples 1-8 and Comparative Example 1 were selected for coating tests. The wall surface was used as the coating surface. The experiments were conducted indoors and irradiated with a high-temperature lamp at 75°C. The indoor experimental environment should be well ventilated and the coating surfaces should be spaced 1.2-1.5m apart.

[0070] 3. Test Results

[0071] Table 1. Relevant test performance results of bio-based stone paint

[0072]

[0073]

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

[0075] In this invention, the heat resistance of the natural stone paint can be improved by adding high-temperature resistant resin, defoamer, high-temperature resistant solvent, and high-temperature resistant additives. This ensures that the natural stone paint is not prone to deformation or softening under long-term high-temperature environments, thus guaranteeing its normal decorative effect.

[0076] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A bio-based stone-like paint, characterized in that, The raw materials for the bio-based stone paint include base material and solvent; The raw materials used to prepare the base material, calculated by mass parts, 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); The raw materials used to prepare the bio-based resin include: vegetable oil, starch, and cellulose; The raw materials used to prepare the high-temperature resistant resin include: organosilicon resin, polyimide resin, and polyphenylene sulfide resin; The solvent includes defoamers, high-temperature resistant solvents, and high-temperature resistant additives; The raw materials used to prepare the defoamer include: polydimethylsiloxane, mineral oil, ethylene bis-stearamide, and ethylene glycol. The raw materials used to prepare the high-temperature resistant solvent include γ-butyrolactone, propylene carbonate, and azoleidine; The raw materials used to prepare the high-temperature resistant additive include magnesium oxide and montmorillonite.

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

3. The bio-based stone paint as described in claim 2, characterized in that, The weight ratio of the vegetable oil, the starch, and the cellulose is 2:5:(3~7).

4. The bio-based stone paint as described in claim 2, characterized in that, 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 stone paint as described in claim 2, characterized in that, The weight ratio of the polydimethylsiloxane, the mineral oil, the ethylene bis-stearamide, and the first ethylene glycol is 2:1:(3~5):

1.

6. The bio-based stone paint as described in claim 2, characterized in that, The weight ratio of the γ-butyrolactone, the propylene carbonate, and the azole is (2~4):(1~3):(1~5).

7. The bio-based stone paint as described in claim 2, characterized in that, The weight ratio of the magnesium oxide to the montmorillonite is (1~3):(0.5~1.5).

8. A method for preparing bio-based stone paint as described in any one of claims 2 to 7, characterized in that, Includes the following steps: S1. Mix the bio-based resin, the high-temperature resistant resin, the silicon carbide, the zirconium dioxide, the aluminum oxide, and the quartz sand, and stir evenly to obtain the base material; S2. The film-forming aid, the second ethylene glycol, and the thickener are mixed in a vacuum mixer, and the base material is added and mixed. Then, the defoamer, the high-temperature resistant solvent, the high-temperature resistant aid, and the heat stabilizer are added and mixed to react, thereby obtaining bio-based stone paint.

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