KR20110086663A - Nano paint composition - Google Patents

Abstract

PURPOSE: A nano paint composition is provided to improve the adhesive force of the composition with the surface to be coated by uniformly containing nano materials. CONSTITUTION: A nano paint composition with the high intensity contains 2~38wt% of nano material, 3~81wt% of thickener, 18~48wt% of micro-cement main hardening binder, 3~15wt% of reinforcing agent, 4~12wt% of expansion material of calcium sulfoaluminate, 5~23wt% of viscosity controlling and reinforcing agent, 0.1~30wt% of reinforcing frame, 0.5~5wt% of organic polymer coagulant of polyacrylamid, 3~70wt% of inorganic sol liquid hardening binder, 3~45wt% of reinforcing fiber, 3~28wt% of heat-proof reinforcing agent, 0.5~18wt% of hardening diluents, and 5~35wt% of filler.

Description

Nano paint composition {NANO PAINT COMPOSITION}

The present invention relates to a solid body composition which maintains the properties thereof and maximizes them by utilizing materials such as silica airgel and carbon nanotubes having high thermal insulation and high heat dissipation. That is, it relates to a highly efficient coating composition. The nano-materials, such as an airgel mentioned below, are collectively called a nano material. The dispersibility of nanomaterials is smoothed and adhesion is increased to increase wettability and adhesion with other materials to form a high-strength coating film. The present invention relates to a nano coating composition of a composite type containing nano materials for contributing to the smooth practical use of nano materials.

Recently, attention has been focused on the environment such as overuse of fossil fuels, global warming response, green industry technology, and carbon dioxide reduction. Since then, many energy-saving technologies and technologies for maximizing energy efficiency have been developed. Research is being conducted in many large corporations and public research institutes. As an example, even if the patent and utility model disclosed to the Korea Patent Office for insulation is over 10,000 technologies are disclosed, ongoing technology development is ongoing. Applicant has also developed the illite-containing hydraulic inorganic paints and airgel-containing paints, panels, and sheets from the patent application for 'multifunctional hydrocurable varnish composition' containing biotite and yellow soil, which are eco-friendly paints in 2001. This has led to the present, based on the valuable experience of the technology development process and trial and error.

Background technologies such as heat insulation and surface heating, which can be simply expressed in the first place, are energy that generates 100% effect from the past technology that achieves 100% effect by applying 10 contents of material input. The development of technologies to increase the efficiency of the fuel cell is also underway as an alternative energy source for fossil fuels (such as wind, land, solar, tidal power, and biofuels such as corn extracts). Both classes are very important technologies, but the applicant's personal thought is cautious that the development of the former technology, which can improve the adaptability and efficiency of energy use, takes precedence.

Among the patents disclosed by the Korean Intellectual Property Office, examples of heat-insulated silica airgels are the publicly available technology for manufacturing basic new material airgel powders and exothermic carbon nanotubes, and the resulting silica airgel powders are already available in Korea in 2009. It is being commercialized. However, the use of the silica aerogels having excellent characteristics of low thermal conductivity, which are excellent in themselves, has many problems in practical use by forming a composite due to a weak mechanical strength and lack of adhesion with other materials due to hydrophobicity.

In order to form a solid by combining silica airgel with other materials, the pore state must be maintained without degrading hydrophobicity so that the purpose can be achieved by utilizing its characteristics, and it can be easily applied for high temperature below 700 degrees Celsius. It can be differentiated from foamed polyurethane foam, which is a conventional organic insulating material. In the case of urethane foam, it is easy to apply at low temperature, but it is applied to less than 100 degrees Celsius, flame retardancy, and toxic gas is generated in case of fire. In addition, aerogels and nanotubes should contain a large amount of nanomaterials in comparison with other binders by volume in complexing with other materials, and it is difficult to expect the effect if they are not compressed.

The technology for compounding aerogels and nanotubes is insignificant, and even if the characteristics of nanomaterials are combined, combined, and put into practical use, they are still at the beginning level. Many technical developments remain homework.

Difficulties in complexing nanomaterials have been delayed in practical use due to excessive adhesion with other binders, incompatibility of dispersion, and lack of durability of solids. In addition, the application of pressure-sensitive adhesives such as cellulose causes problems in compressibility when excessive, which is somewhat unreasonable in application. It may cause discoloration and change of properties at high temperature.

In conclusion, there are not many publicly disclosed technologies for complexing nanomaterials, but the technologies complexed with micro cement, polyacrylamide, calcium sulfo aluminate, borosilicate glass powder, etc., as described in the present invention, are extremely insignificant and overall differentiated from the composition. I can be.

This has led to the present invention in order to solve the problem of the practical use of nanomaterials. In order to effectively apply energy, the surface hardness and adhesion strength are improved by quantitative application of other inorganic materials and tacky organic polymers in order to solve, overcome and easily realize the problem of complexing new nano materials. In addition, the development of the coating is different from the method of attaching panel type work is easy and fast to complete the air to provide a nano coating composition which is also differentiated and economical workability is given. In addition, it is intended to maximize the durability by maximizing the compression and maximize the characteristics of the nano-material to maximize the durability.

In order to achieve the above-mentioned problems and objects, a nano coating composition is provided.

Silica Airgel, Organic Airgel, Metal Oxide Airgel, Single Wall Carbon Nanotube, Multiwall Carbon Nanotube, Nanocarbon, Organic Nanotube, Boron Nitride Nanotube, Titanate Nanotube, Nickel Oxide Nanotube, Tungsten Oxide Nanotube, Oxidation Copper-titanium oxide nanotube powder, metal oxide nanotubes. 2 to 38% by weight of nanomaterials, characterized in that it is composed of one or more selected.

3 to 18% by weight thickener, characterized in that at least one selected from graphene, fullerene, nano cray, hectorite, aluminum oxide, aluminum sulfate, barium oxide.

18 to 48% by weight of the main hardening binder of the micro cement.

3 to 15% by weight of a reinforcing material, characterized in that one of silica fume and fumed silica is selected.

4-12 weight% of expansion materials of calcium sulfo aluminate.

5 to 23% by weight of a viscosity modifier and reinforcing material, characterized in that at least one of magnesium oxide and fluorine-containing magnesium oxide nanopowder is selected.

0.1-30% by weight of reinforcing aggregate, characterized in that at least one of borosilicate glass powder, glassy carbon, and ammonium sulfate is selected.

0.5-5 weight% of organic polymer flocculents of polyacrylamide.

Zirconia sol, titania sol, metal oxide sol. 3 to 70% by weight of the inorganic sol liquid curing binder, characterized in that at least one selected from the group.

At least one selected from yttrium fiber, hafnia fiber, cerium oxide fiber, zirconia fiber, carbon nanotube fiber, carbon nanofiber, polyimide fiber, kevlar fiber, aramid fiber, zirconia bulk fiber and alumina-silica fiber 3 to 45% by weight of reinforcing fibers.

Heat-resistant reinforcing material, characterized in that at least one selected from cementite, tungsten oxide, tin oxide, tin oxide nano powder, copper oxide nano powder, nano nitride powder, lanthanum oxide, strontium, nickel oxide, manganese oxide, cerium oxide 28 wt%.

Curing diluent 0.5 characterized in that at least one selected from perhydro polysilazane, fluorocarbon resin, carrageenan, butylene glycol, propylene glycol, polyester ketone resin, liquid polyacryl varnish, polycarbonate resin, polyacetal resin 18 weight%.

Silicon carbide powder, silicon carbide nano powder, tungsten carbide, titanium carbide, zirconium oxide powder, citric acid, zirconium silicate, calcium zirconate, aluminum nitride, silicon nitride, graphite, expanded graphite, titanate, bubble alumina, bubble silica, ammonium plaque Potassium alum, mullite, phosphate ester type, phosphate oxide, borate compound, metal carbide nano powder, beta spodumene lithium, petalite, lithium carbonate, lithium titanate, lithium manganate, lepidolite, neplen sineite, wallosto Provides a high-strength nano-coating composition containing nano-materials such as aerogel consisting of 5 to 35% by weight of a filler, characterized in that at least one selected from nit, polycrystalline silicon, silicon ferrite, cobalt ferrite, nickel ferrite. do.

In addition, the water used for the hydration reaction is provided with 0.5 to 3.5 relative to the total weight of the material 1, the whole material is compressed and tightly mixed by agitation, which is applied in the same manner as a general organic coating material through a coating machine.

When coating the coating composition consisting of the above composition, the nanomaterial is homogeneously contained, and the integration is made by increasing the adhesion to the surface to be coated. The characteristics are greatly improved. The efficiency of energy sources can be improved and environmentally friendly. In particular, it can be applied to general residential area, plant, equipment industry, semiconductor and fuel cell.

The structure, role, and operation of the present invention will be described in an easy to understand manner. The examples and the comparative examples are not separately indicated, and the problems of excessive and small amounts of the composition materials as a whole are indicated.

The present invention is to composite and paint the nano-materials such as heat-insulating silica airgel (Aerogel, aerogel) and pyrogenic carbon nanotube (colon nanotube), which is a typical inherent property, with other composition materials, to save the characteristics and to further enhance energy efficiency. In providing contributing paints.

2 to 38% by weight of nanomaterial, 3 to 18% by weight of thickener, 18 to 48% by weight of main hardening binder, 3 to 15% by weight of reinforcing material, 4 to 12% by weight of expanding material, 5 to 23% by weight of viscosity control and reinforcing material, reinforcement Aggregate 0.1-30 wt%, Organic Polymer Coagulant 0.5-5 wt%, Inorganic Sol Liquid Curing Binder 3-70 wt%, Reinforcing Fiber 3-45 wt%, Heat Resistant 3-23 wt%, Hardening Diluent 0.5-18 wt% And 5 to 35% by weight of the filler.

The high functional nano material of the composition of the present invention is a silica airgel, which is a new material that can be applied to thermal barrier applications having a very low thermal conductivity, and a carbon nanotube having a thermal conductivity of about 5 times copper as the opposite concept, and the inherent characteristics thereof. Exercising is difficult when used alone. The reason is that it is difficult to form a solid body due to separation, separation, non-adhesiveness, heterogeneous miscibility with other materials due to hydrophobicity and ultra-light weight, and the nanomaterial is actively introduced into the present invention to solidify it. Paint to maintain its properties. The present invention is applied to functional materials such as heat insulation and heat generation of the present invention and is adhered to other composition materials to form an integrated solid body. Unlike conventional attachable panel method, it is painted to improve workability and energy efficiency. In the case of an excess, the effect is maintained as it is, but the bonding strength with other materials is lowered, and the coating film becomes poor, and in the case of a small amount, its inherent characteristics are difficult to obtain.

Thickeners increase the bond between nanomaterials and micro cement by increasing the viscosity and volume expansion of some parts. Nanomaterials are ultra-lightweight, suspended and not easy to settle and are spaced apart upwards, which impedes the formation of binders due to poor access to other materials. This is applied to enhance the bonding force between nanomaterials and micro cement materials, and other materials are suspended, and the surface adhesion with nanomaterials is increased and combined. Excessive amounts do not combine with agitation and overall volume increase due to viscosity increase. When small amount, the volume does not increase and the adhesive strength is low, and the bonding force is drastically reduced.

Micro cement serves as the main hardening binder. It is applied as the main hardening material of solid body by increasing the bonding strength and adhesion between nanomaterials and other fillers. It is a micro-size particle cement, which has good pore filling and flowability, which leads to an increase in fluidity and hardens by evenly adhering to other materials. In excess, the strength is lowered and in small quantities it is similar.

Reinforcing materials such as silica fume serve to increase the strength of the entire coating film. In addition, it gives adhesive strength when stirring and improves the bonding strength between nanomaterial and cement. In excess, the volume increases, and in the small amount, the bonding strength and strength decrease.

Calcium sulfo aluminate expanders, unlike ordinary cellulose and starch, swell and swell, and when hydrated, colloidal phases of acicular crystals form, adhering and expanding other materials and impart some elasticity. It expands and expands at the same time, increasing the adhesion between nanomaterials and other materials, and swelling to compress. As a result, the bonding force is increased and the crack prevention and elasticity are given. In excess, the viscosity rises to loosen the binding force and do not form a tight gap. Small amounts are not compressed.

Viscosity control and reinforcement materials, such as magnesium oxide, complement the strength of the entire paint, and control the flow, adhesion, and viscosity of the paint.Increase the bonding strength due to the viscosity increase during stirring and the strength and workability due to the control of fluidity during application. This is due to an increase in viscosity when excessive, resulting in poor agitation and intensification of the separation between the nanomaterial and the micro cement. Adhesion becomes low. In small amounts, the strength of the coating film is partially lowered, and the mixing force is lowered due to the increase of fluidity of other materials during stirring.

Reinforcing aggregates, such as borosilicate glass powder, increase the bonding strength between nanomaterials and other materials, and play a role of skeletal core material because they exist in the weak part of nanoscale skeleton. It can be compared with aggregate in general concrete mix. When stirring, the miscibility of the whole material is quickly improved. In excess, the strength is weakened, and in small amounts it is the same.

The organic polymer flocculant of polyacrylamide is wet expanded upon stirring with water, has cohesion, and aggregates all materials between layers to increase viscosity. This increases the cohesion between materials and has agglomeration and high viscosity. If the stirring is continued, it is partially compressed by the increase of fluidity and the increase of the bonding force, and gradually converts from the gel state into the aqueous solution state, and the whole agitated mixture is mixed. In an aqueous solution with polyvalent metal cations such as calcium and magnesium, polyacrylamide has a property of discharging some of the moisture contained in the polyacrylamide, and proceeds to a low viscosity in a very high gel state. The whole material is compressed and densified in the adhered state. This increases the bonding force and improves fluidity. In the case of excess, separation of materials occurs due to the increase of viscosity, and in the case of small amount, other materials cannot stick together.

Inorganic sol liquid curing binders, such as zirconia sol, are applied as heat-resistant curing binders to increase the strength of the entire coating material and increase the bonding strength and adhesion to the drawings. In excess, material separation may occur, and in small amounts, the bonding strength is low.

Reinforcing fibers, such as yttrium fibers, improve the crack prevention and bendability of the coating film and increase the bonding strength between layers to further increase the strength. In excess, the total amount of other binds decreases, resulting in a low bond and poor coating. In small amounts, the strength may be lowered and cracks in the coating may occur.

Heat-resistant reinforcing materials such as cementite remain between the layers of nanomaterials and micro cement, and the bonding strength is increased and the strength of the coating film is improved. In excess and in small amounts, the bonding strength is weak and cracking may occur.

Curing diluents, such as perhydro polysilazane, further prevent weakening of the bonding force with other materials due to the repulsive force of the nanomaterial when stirring, and increase the compressibility, densification and integration by adding a binding force. Increase the strength during coating curing. In excess, too, the overproduction of its own film lowers the binding force, and in the small amount, the binding force and strength are lowered.

Fillers, such as silicon carbide powder, are involved in the formation of dense voids in coatings, which in turn exist between layers of nanomaterials and other materials, resulting in increased strength. In addition, the adhesion is increased by giving a heavy feeling of the paint. Excessive and minor amounts of low strength result in cracking.

As described above, 0.5 to 3.5 weight of water is added to the total mixed composition to 1 weight of the total composition material and the compressed emulsion is completed by stirring at least 500 rpm and at least 3 minutes at less than 2500 rpm. It is applied in the same way as general paint.

Claims (1)

Silica Airgel, Organic Airgel, Metal Oxide Airgel, Single Wall Carbon Nanotube, Multiwall Carbon Nanotube, Nanocarbon, Organic Nanotube, Boron Nitride Nanotube, Titanate Nanotube, Nickel Oxide Nanotube, Tungsten Oxide Nanotube, Oxidation Copper-titanium oxide nanotube powder, metal oxide nanotubes. 2 to 38% by weight of nanomaterials, characterized in that it is composed of one or more selected. 3 to 18% by weight thickener, characterized in that at least one selected from graphene, fullerene, nano cray, hectorite, aluminum oxide, aluminum sulfate, barium oxide. 18 to 48% by weight of the main hardening binder of the micro cement. 3 to 15% by weight of a reinforcing material, characterized in that one of silica fume and fumed silica is selected. 4-12 weight% of expansion materials of calcium sulfo aluminate. 5 to 23% by weight of a viscosity modifier and reinforcing material, characterized in that at least one of magnesium oxide and fluorine-containing magnesium oxide nanopowder is selected. 0.1-30% by weight of reinforcing aggregate, characterized in that at least one of borosilicate glass powder, glassy carbon, and ammonium sulfate is selected. 0.5-5 weight% of organic polymer flocculents of polyacrylamide. Zirconia sol, titania sol, metal oxide sol. 3 to 70% by weight of the inorganic sol liquid curing binder, characterized in that at least one selected from the group. At least one selected from yttrium fiber, hafnia fiber, cerium oxide fiber, zirconia fiber, carbon nanotube fiber, carbon nanofiber, polyimide fiber, kevlar fiber, aramid fiber, zirconia bulk fiber and alumina-silica fiber 3 to 45% by weight of reinforcing fibers. Heat-resistant reinforcing material, characterized in that at least one selected from cementite, tungsten oxide, tin oxide, tin oxide nano powder, copper oxide nano powder, nano nitride powder, lanthanum oxide, strontium, nickel oxide, manganese oxide, cerium oxide 28 wt%. Curing diluent 0.5 characterized in that at least one selected from perhydro polysilazane, fluorocarbon resin, carrageenan, butylene glycol, propylene glycol, polyester ketone resin, liquid polyacryl varnish, polycarbonate resin, polyacetal resin 18 weight%. Silicon carbide powder, silicon carbide nano powder, tungsten carbide, titanium carbide, zirconium oxide powder, citric acid, zirconium silicate, calcium zirconate, aluminum nitride, silicon nitride, graphite, expanded graphite, titanate, bubble alumina, bubble silica, ammonium plaque Potassium alum, mullite, phosphate ester type, phosphate oxide, borate compound, metal carbide nano powder, beta spodumene lithium, petalite, lithium carbonate, lithium titanate, lithium manganate, lepidolite, neplen sineite, wallosto High-strength nano-coating composition containing nanomaterials such as aerogels composed of 5 to 35% by weight of a filler, characterized in that at least one selected from knight, polycrystalline silicon, silicon ferrite, cobalt ferrite, and nickel ferrite.