Aerogel emulsion

Abstract

The invention relates to the technical field of coatings, discloses an aerogel emulsion, and provides a scheme for solving the problems that coatings on the market at present are poor in environmental protection property and pungent in smell, and fireproof, waterproof, ultraviolet-proof, corrosion-resistant and other properties gradually cannot meet the use requirements of users. The adhesive comprises the following raw materials in parts by weight: 100-120 parts of glutinous rice glue, 6-8 parts of a coalescing agent, 1-5 parts of a dispersing agent, 3-8 parts of a defoaming agent, 20-30 parts of aerogel, 2-3 parts of titanium dioxide, 50-80 parts of a flame retardant, 50-80 parts of melamine, 2-4 parts of cellulose, 2-3 parts of a biological preservative and 100-150 parts of deionized water. The glutinous rice glue is used as a main basic raw material, has the advantages of no toxicity, no peculiar smell, environmental protection, durability, low maintenance rate and good anticorrosion effect, after the glutinous rice glue is mixed with other raw materials, the water resistance, heat insulation and fire resistance of the aerogel emulsion are improved, the preparation efficiency is high, and the aerogel emulsion can be used in the fields of refrigerators, air conditioners, automobiles, steamships, tunnels and the like.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, in particular to an aerogel emulsion. Background Art

[0002] Paint, traditionally known as paint in China, is a viscous liquid coated on the surface of an object to be protected or decorated, and can form a continuous film that is firmly attached to the object. It is usually mainly resin, oil, or emulsion, with or without pigments, fillers, and corresponding additives, and is prepared with organic solvents or water.

[0003] Most of the existing coatings have a pungent odor and poor environmental protection. In addition, with the advancement of production technology, the fire resistance and corrosion resistance of the existing coatings are gradually unable to meet the user's usage needs. The present invention proposes an environmentally friendly aerogel emulsion with high-efficiency thermal insulation material, which can effectively improve the thermal insulation performance of the product and the sound insulation and noise reduction performance of the product. It has strong adhesion, does not absorb moisture, is corrosion-resistant and wear-resistant. While improving the thermal insulation performance of the product, it will not incur high cost increases, and the thermal insulation and corrosion resistance are significantly improved. It is clean, environmentally friendly, non-toxic and non-combustible. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an aerogel emulsion, which solves the problem that the coatings currently on the market have poor environmental protection, pungent odor, and the fire resistance, waterproofness, UV resistance and corrosion resistance properties are gradually unable to meet the user's usage needs.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] An aerogel emulsion comprises the following raw materials in parts by weight: 100-120 parts of glutinous rice glue, 6-8 parts of film-forming aid, 1-5 parts of dispersant, 3-8 parts of defoamer, 20-30 parts of aerogel, 2-3 parts of titanium dioxide, 50-80 parts of flame retardant, 50-80 parts of melamine, 2-4 parts of cellulose, 2-3 parts of biological preservative and 100-150 parts of deionized water.

[0007] Preferably, the raw materials include the following parts by weight: 120 parts of glutinous rice glue, 6 parts of film-forming aid, 3 parts of dispersant, 5 parts of defoaming agent, 25 parts of aerogel, 2 parts of titanium dioxide, 60 parts of flame retardant, 60 parts of melamine, 2 parts of cellulose, 2 parts of biological preservative, and 120 parts of deionized water.

[0008] Preferably, the raw materials include the following parts by weight: 120 parts of glutinous rice glue, 8 parts of film-forming aid, 3 parts of dispersant, 5 parts of defoaming agent, 30 parts of aerogel, 3 parts of titanium dioxide, 80 parts of flame retardant, 80 parts of melamine, 4 parts of cellulose, 3 parts of biological preservative, and 130 parts of deionized water.

[0009] Preferably, the film-forming aid is one of propylene glycol butyl ether and propylene glycol methyl ether acetate.

[0010] Preferably, the dispersant is one of sodium polyphosphate solution and disproportionate potassium rosinate soap solution.

[0011] Preferably, the flame retardant is brominated polystyrene.

[0012] Preferably, the defoaming agent is one of emulsified silicone oil, polyoxypropylene glyceryl ether, polyoxypropylene polyoxyethylene glyceryl ether, and polydimethylsiloxane.

[0013] Preferably, the biological preservative is chitosan.

[0014] Furthermore, the preparation method of the aerogel comprises the following steps:

[0015] S1, prepare glutinous rice glue, film-forming agent, dispersant, defoamer, aerogel, titanium dioxide, flame retardant, melamine, cellulose, biological preservative, deionized water according to weight ratio, and pour the glutinous rice glue and film-forming agent into the reactor and stir evenly to form the first material;

[0016] S2, pouring the ionized water, flame retardant, aerogel, melamine, dispersant, and titanium dioxide prepared in S1 into a mixing tank, and stirring evenly to form a second material;

[0017] S3, pouring the second material in S2 into the reactor in S1, stirring after mixing, and then adding the defoamer, cellulose, and biological preservative prepared in S1 into the reactor in sequence, stirring evenly to form an aerogel emulsion.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The glutinous rice glue used in the present invention is used as the basic raw material, which has the advantages of being non-toxic, odorless, environmentally friendly and healthy, and having a low maintenance rate. It also has good salt-alkali resistance and a good anti-corrosion effect. After being mixed with other raw materials, the waterproofness and heat insulation and fire resistance of the aerogel emulsion are improved. The aerogel emulsion can be used in refrigerators, air conditioners, automobiles, ships, tunnels, etc., and plays the roles of heat insulation, fire prevention, waterproofness, and anti-corrosion.

[0020] 2. The aerogel in the present invention is porous, disordered, and has a continuous network structure at the nanometer level. The aerogel contains a large amount of air, and the typical pore size is in the range of 1 to 100 nanometers, and the porosity is above 80%. Its fine nanostructure makes the thermal conductivity of the material extremely low, and it has a large specific surface area. The scattering of light and sound is much smaller than that of traditional porous materials, and the mixing effect in the solution is good, which helps to further improve the thermal insulation and fire resistance of the aerogel emulsion, and is more suitable for use in refrigerators, air conditioners, automobiles, ships, tunnels, etc., with good protection effect.

[0021] 3. The raw materials of the aerogel emulsion in the present invention are easy to obtain, green and environmentally friendly, and have high preparation efficiency and good economic benefits. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] An aerogel emulsion comprises the following raw materials in parts by weight: 100 parts of glutinous rice glue, 6 parts of propylene glycol butyl ether, 1 part of sodium polyphosphate solution, 3 parts of emulsified silicone oil, 20 parts of aerogel, 2 parts of titanium dioxide, 50 parts of brominated polystyrene, 50 parts of melamine, 2 parts of cellulose, 2 parts of chitosan and 100 parts of deionized water.

[0025] Embodiment 2

[0026] An aerogel emulsion comprises the following raw materials in parts by weight: 110 parts of glutinous rice glue, 7 parts of propylene glycol butyl ether, 3 parts of sodium polyphosphate solution, 5 parts of emulsified silicone oil, 22 parts of aerogel, 2 parts of titanium dioxide, 60 parts of brominated polystyrene, 55 parts of melamine, 3 parts of cellulose, 2 parts of chitosan and 120 parts of deionized water.

[0027] Embodiment 3

[0028] An aerogel emulsion comprises the following raw materials in parts by weight: 120 parts of glutinous rice glue, 8 parts of propylene glycol methyl ether acetate, 3 parts of sodium polyphosphate solution, 5 parts of polyoxypropylene polyoxyethylene glycerol ether, 30 parts of aerogel, 3 parts of titanium dioxide, 80 parts of brominated polystyrene, 80 parts of melamine, 4 parts of cellulose, 3 parts of chitosan and 130 parts of deionized water.

[0029] Embodiment 4

[0030] An aerogel emulsion comprises the following raw materials in parts by weight: 120 parts of glutinous rice glue, 3 parts of potassium disproportionate rosin acid soap solution, 5 parts of polyoxypropylene polyoxyethylene glycerol ether, 30 parts of aerogel, 3 parts of titanium dioxide, 80 parts of brominated polystyrene, 80 parts of melamine, 4 parts of cellulose, 3 parts of chitosan and 130 parts of deionized water.

[0031] Embodiment 5

[0032] An aerogel emulsion comprises the following raw materials in parts by weight: 120 parts of glutinous rice glue, 8 parts of propylene glycol methyl ether acetate, 5 parts of disproportionate potassium rosin soap solution, 8 parts of polydimethylsiloxane, 30 parts of aerogel, 3 parts of titanium dioxide, 80 parts of brominated polystyrene, 80 parts of melamine, 4 parts of cellulose, 3 parts of chitosan, and 150 parts of deionized water.

[0033] The aerogel emulsions in the above five embodiments are all prepared by the following steps:

[0034] S1, prepare glutinous rice glue, film-forming agent, dispersant, defoamer, aerogel, titanium dioxide, flame retardant, melamine, cellulose, biological preservative, deionized water according to weight ratio, and pour the glutinous rice glue and film-forming agent into the reactor and stir evenly to form the first material;

[0035] S2, pouring the ionized water, flame retardant, aerogel, melamine, dispersant, and titanium dioxide prepared in S1 into a mixing tank, and stirring evenly to form a second material;

[0036] S3, pouring the second material in S2 into the reactor in S1, stirring after mixing, and then adding the defoamer, cellulose, and biological preservative prepared in S1 into the reactor in sequence, stirring evenly to form an aerogel emulsion.

[0037] The aerogel emulsions prepared in the above five embodiments are labeled 1, 2, 3, 4, and 5, respectively, and a metal plate surface coating with anticorrosive performance is purchased from the market and labeled 6. The emulsions No. 1 to 5 and the coating No. 6 are evenly coated on different positions on the surface of the same metal plate, and a salt spray test is performed after air drying to obtain the following table:

[0038]

[0039]

[0040] It can be seen from the above table that the aerogel emulsion prepared in the present invention has good salt and alkali resistance and good anti-corrosion effect compared with the coatings on the market.

[0041] The aerogel emulsions prepared in the above five embodiments are numbered 1, 2, 3, 4, and 5 respectively, and a metal plate surface coating with anti-corrosion performance is purchased from the market and marked as 6. The emulsions No. 1-5 and the coating No. 6 are evenly coated on different positions on the surface of the same metal plate, and after air-drying and shaping, they are immersed in water, and the time when the coating peels and breaks is recorded. The result is that the waterproofness is from strong to weak: 3>4>2>5>1>6. Therefore, it can be obtained that the aerogel emulsion prepared in Example 3 has the best waterproof effect.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerogel emulsion, characterized in that: The invention comprises the following raw materials in parts by weight: 100-120 parts of glutinous rice glue, 6-8 parts of film-forming aid, 1-5 parts of dispersant, 3-8 parts of defoaming agent, 20-30 parts of aerogel, 2-3 parts of titanium dioxide, 50-80 parts of flame retardant, 50-80 parts of melamine, 2-4 parts of cellulose, 2-3 parts of biological preservative and 100-150 parts of deionized water.

2. An aerogel emulsion according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 120 parts of glutinous rice glue, 6 parts of film-forming aid, 3 parts of dispersant, 5 parts of defoaming agent, 25 parts of aerogel, 2 parts of titanium dioxide, 60 parts of flame retardant, 60 parts of melamine, 2 parts of cellulose, 2 parts of biological preservative and 120 parts of deionized water.

3. An aerogel emulsion according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 120 parts of glutinous rice glue, 8 parts of film-forming aid, 3 parts of dispersant, 5 parts of defoaming agent, 30 parts of aerogel, 3 parts of titanium dioxide, 80 parts of flame retardant, 80 parts of melamine, 4 parts of cellulose, 3 parts of biological preservative and 130 parts of deionized water.

4. An aerogel emulsion according to claim 1, characterized in that: The film-forming aid is one of propylene glycol butyl ether and propylene glycol methyl ether acetate.

5. The aerogel emulsion according to claim 1, characterized in that: The dispersant is one of sodium polyphosphate solution and disproportionate potassium rosin acid soap solution.

6. An aerogel emulsion according to claim 1, characterized in that: The flame retardant is brominated polystyrene.

7. An aerogel emulsion according to claim 1, characterized in that: The defoaming agent is one of emulsified silicone oil, polyoxypropylene glyceryl ether, polyoxypropylene polyoxyethylene glyceryl ether, and polydimethylsiloxane.

8. An aerogel emulsion according to claim 1, characterized in that: The biological preservative is chitosan.

9. The aerogel emulsion according to claim 1, characterized in that: The preparation method of the aerosol latex comprises the following steps: S1, prepare glutinous rice glue, film-forming aid, dispersant, defoamer, aerogel, titanium dioxide, flame retardant, melamine, cellulose, biological preservative, deionized water according to weight ratio, and pour glutinous rice flour and film-forming aid into a reactor and stir evenly to form a first material; S2, pouring the ionized water, flame retardant, aerogel, melamine, dispersant, and titanium dioxide prepared in S1 into a mixing tank, and stirring evenly to form a second material; S3, pouring the second material in S2 into the reactor in S1, stirring after mixing, and then adding the defoamer, cellulose, and biological preservative prepared in S1 into the reactor in sequence, stirring evenly to form an aerogel emulsion.

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