KR100735717B1 - A paint using disposable styrofoam and the method of the same - Google Patents

Abstract

The present invention relates to a paint using waste styrofoam and a method of manufacturing the same, wherein the waste styrofoam collected and washed is 45% by weight of toluene, 7% by weight of xylene, 10% by weight of solvent, 3% by weight of acetone, and 35% by weight of thinner. Mixing% to oxidize; Freezing the oxidized mixed solution at -30 ° C to -40 ° C; And it relates to a method for producing a paint using waste styrofoam and the paint prepared by the method comprising the step of drying after the heat treatment to 35 ℃ to 45 ℃ the difficult solid.

Thus, according to the paint and the manufacturing method using the waste styrofoam according to the present invention, by recycling the waste styrofoam to be disposed of, there is an advantage to reduce the cost of industrial waste treatment, give a price advantage and reduce environmental pollution. In addition, the use of the components contained in the waste styrofoam, there is no need to add a separate additive, so there is an excellent effect, such as can be widely universalized paint excellent in water resistance, durability, and heat insulation at low cost.

Waste Styrofoam, Paint

Description

A paint using disposable styrofoam and the method of the same}

The present invention relates to a paint and a waterproofing liquid, and more particularly, 45% by weight of toluene, 7% by weight of xylene, 10% by weight of ethanol, 3% by weight of acetone, and 35% by weight of waste styrofoam collected and washed. Mixing; Positing the oxidized liquid at -30 ° C to -40 ° C; It relates to a high quality paint produced through the step of pulverizing the solid after the heat treatment to 35 ℃ to 45 ℃.

In general, paint or paint is a general expression of what is used for protecting and coloring the surface of an object by spreading the fluid on the surface of the object to form a thin layer. Objects are slightly eroded by external influences, large or small, and often have a low surface product value. Therefore, it protects against external influences and controls the protection, corrosion prevention, oil resistance, chemical resistance, moisture resistance, beautification, smoothing, labeling, gloss, and sterilization and conductivity of objects. · Paint for the purpose of reflection and prevention of adhesion of living organisms.

The first use of paints was in the field of painting with colorants and pigments, but since 1670, dry oil was manufactured as a domestic industry. In the late 19th century, economic activity became active and the demand for paints increased. Rosin modified glycerol ester varnish began manufacturing synthetic paints such as rheology alkyd resin in 1927. Emulsion paints were developed in 40 years, and after World War II plastics (synthetic resins) were developed, a lot of synthetic resins were used.

There are many kinds of raw materials for paints, and the main components of coating are classified into major components and sub-elements, pigments and solvents. The main components are the colorants and the pigment components, which are the coating-forming components. A colorant corresponds to a transparent paint, and is a component that disperses a pigment or the like and gives fluidity to the paint. That is, (i) As a liquid component containing a component, an additive, and a solvent, it means liquid components other than the pigment or dye added for coloring, and a pigment is a component which gives a color to a coating film.

Drying oil, processed dry oil, synthetic resin, natural resin, and cellulose derivative are used as coating components. Although dry or semi-dry oil is still a major raw material, it has recently been replaced by various synthetic resins. The use of natural resins has also declined, and derivatives from natural rubber and fiber are still used frequently. On the other hand, synthetic resins have a constant quality and stable supply. In particular, it has the characteristic that the modification suitable for the characteristic of the coating film requested | required is possible.

Pigments are usually colored powders that are insoluble in water and solvents, and are distinguished from dyes soluble in solvents. Effects of pigment addition to paints include coloring, concealment, and viscosity, and reinforcement and anticorrosion of coating films. The pigment in the coating state is sufficiently dispersed in the colorant and remains dispersed even after drying with the coating film.

The solvent is generally added in order to keep the paint in a fluid state, and there are a hydrocarbon-based, alcohol-based, ester-based, ketone-based, and water-based system. Commonly used solvents include petroleum light oil, alcohol, toluene, ether, acetone and halogenated hydrocarbons. Although there are many organic solvents, their use has been greatly limited in recent years against the air pollution caused by the evaporation. Water-soluble paints are diluted with water, in which case water is not called a solvent. It is necessary to use less impact on the environment and less flammable.

Examples of the additive include a disinfectant, a desiccant (hardener), a pigment dispersant, an emulsifier, a thickener, an anti-skinning agent, an insecticide, and a disinfectant.

Paints are called by various names by classification methods, and can be classified into water-based paints and oil-based paints.

Oil-based paints are mainly paints using colorants made from natural oils, etc. Especially oil-based paint is a paint made from voile oil, and voile oil is a drying agent such as soybean oil, linseed oil, petroleum oil and fish oil. It was added and oxidatively polymerized until it became a suitable viscosity, blowing air at the temperature of 120 degrees C or less, and a desiccant is further added to it as a coloring agent. This is also simply called paint. There are kneading paints (85-90% of pigments) and combination paints (60-65% of pigments) according to the blending ratio of pigment and voile oil. However, oil paint has a disadvantage in that drying is slow and lacks in firmness, water resistance and alkali resistance. In addition, the organic solvent is contained in the paint 40% or more, there is a problem that causes photochemical smog.

On the other hand, an aqueous paint or an aqueous paint uses water as a diluent instead of an organic solvent, and is economical, easy to handle, and safe. It is usually divided into emulsion type, emulsion type with aggregate, and water-soluble synthetic resin type. These main coating components generally include polyvinyl acetate, polystyrene, styrene-butadiene copolymers, emulsions of acrylic acid-ester copolymers, alkyd resins, amino resins, epoxy resins, and the like.

On the other hand, it is divided into thermosetting type and natural curing type according to the coating method. The thermosetting type includes styrene-butadiene type and acrylic acid ester type, and the thermosetting type is widely used as an electrodeposition paint for automobile body primer. Used as It is also used as a coating material for food and beverage cans.

The natural curing type is vinyl acetate, etc., and is often coated with a spray for indoor and outdoor paints of buildings, and emulsion paints are mainly used.

The advantage of water-based paints is that water acts as a solvent, so there is no risk of fire or environmental pollution, and the coating can be used for concrete, mortar, etc. because it is water-resistant and has a good base resistance. On the other hand, since the small particles of the resin forming the emulsion fuse to form a coating film, there is a disadvantage that there is not much gloss.

In addition, styrofoam is white and light, and has excellent water resistance, heat insulation, sound insulation, and cushioning properties. Therefore, packaging materials for building materials, decorative furniture, prefabricated houses, wall and ceiling materials, stage equipment, agricultural products and meats, etc. It is widely used as a packaging material for transportation of electronic products or other fragile items, as a wall material of meat freezing warehouse, exterior of refrigeration pipe, and the like.

However, styrofoam is cheap, easy to make and functional, but good, but not easy to disassemble, heat treatment is not easy to dispose or recycle, there are various problems such as environmental problems.

Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a paint having excellent water resistance, durability, and thermal insulation by using waste styrofoam which is a construction waste material.

In addition, another object of the present invention to provide a method for producing a paint using the waste styrofoam.

In order to achieve the above object, the present invention is any one selected from the group consisting of 45% by weight of toluene, 7% by weight of xylene, nucleic acid, cyclonucleic acid, alcohol, ether, and halogenated hydrocarbons in the collected and washed waste styrofoam. 10% by weight of the solvent, 3% by weight of acetone, 35% by weight of the thinner to oxidize; Freezing the oxidized mixed solution at -30 ° C to -40 ° C; And it provides a paint manufacturing method using waste styrofoam comprising the step of pulverizing after drying the frozen solid to 35 ℃ to 45 ℃ heat.

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In addition, the paint manufacturing method using waste styrofoam is characterized in that it further comprises the step of diluting the powder with a lacca diluent to dissolve.

The solvent Nucleic acids, cyclonucleic acids, alcohols, ethers, halogenated hydrocarbons.

In another aspect, the present invention comprises the steps of mixing 30% by weight of methanol, 60% by weight of enamel thinner, 10% by weight of toluene to the waste styrofoam collected and washed for 24 hours; Oxidizing by adding 40% by weight of the mixed solution, 40% by weight of xylene, 10% by weight of acetone, and 10% by weight of thinner; Freezing the oxidized liquid at -10 ° C; Heat treating the solid to 70 ° C., and then grinding the solid; And it provides a paint manufacturing method using the waste styrofoam comprising the step of mixing by adding lacca thinner to the powder.

The present invention also provides a paint using waste styrofoam, characterized in that produced by the above method.

Hereinafter, a paint using waste styrofoam according to the present invention and a method for producing the same will be described in detail.

Paint using waste styrofoam according to the present invention after washing the styrofoam collected at the construction waste material discharge site and pulverized to the appropriate size 45% by weight of toluene, 7% by weight of xylene, 10% by weight of solvent, 3% by weight of acetone %, Thinner 35% by weight in a stirrer and mixed, and the oxidized liquid is frozen rapidly at -30 ℃ to -40 ℃, the resulting solid is slowly heat treated to 35 ℃ to 45 ℃ again dried and pulverized, It is obtained by dissolving with diluent and finally mixing with adding chemicals and minerals.

The first step in the production of paint using waste styrofoam is to liquefy and oxidize the waste styrofoam, after washing the styrofoam collected at the construction waste material discharge site and pulverizing to a suitable size, 45% by weight of toluene, 7% by weight of xylene, 10 wt% of the solvent, 3 wt% of acetone, and 35 wt% of thinner are added to the stirrer and mixed.

Only an appropriate amount of adhesive may be added to the oxidized stock solution subjected to the first step, and may be used as a liquid paint.

At this time, it is preferable to use nucleic acid, cyclonucleic acid, alcohol, ether, halogenated hydrocarbon as the solvent.

In this case, it is preferable to add 20 wt% of polysol and binder as the chemical substance, and 30 wt% of cement and silica sand, respectively, as the mineral material. Here, the binder is a binder having a known configuration, and is not limited to the kind thereof, and may be used in the same weight ratio as long as the binder has physical properties that can be added to the paint.

In addition, the paint using the waste styrofoam of the present invention is frozen by the instantaneous freezing of the oxidized mixed solution at -30 ℃ to -40 ℃ by slowly heat-treating again at 35 ℃ to 45 ℃ dried and then used as powder paint In addition, a diluent may be added to the powder and used as a mixed liquid paint.

<Example 1>

Paint using waste styrofoam is crushed to a suitable size after cleaning the styrofoam collected at the construction waste material discharge site. 45% by weight of the pulverized waste styrofoam and toluene, 7% by weight of xylene, 10% by weight of ethanol, 3% by weight of acetone, and 35% by weight of thinner were mixed in a stirrer for 30 minutes, and mixed with the oxidized liquid in a polysol and a binder. 20 wt% of each was added, and 30 wt% of cement and silica sand were each added, followed by stirring for 15 minutes to prepare a liquid paint.

<Example 2>

Paint using waste styrofoam is crushed to a suitable size after cleaning the styrofoam collected at the construction waste material discharge site. 500 g of the pulverized waste styrofoam, 45% by weight of toluene, 7% by weight of xylene, 10% by weight of ethanol, 3% by weight of acetone, and 35% by weight of thinner were added to a stirrer, and the oxidized liquid was mixed at about -35 ° C. The solid produced by freezing for 3 minutes was further heat-treated at 40 ° C. for 2 hours, dried, and then ground to prepare a powder paint.

<Example 3>

After dissolving 500 g of the powder paint prepared in Example 2 with 18 L of a lacquer diluent, 20 wt% of a polysol and a binder were added, and 30 wt% of cement and silica sand were added to prepare a liquid paint.

<Example 4>

Firstly, 30% by weight of methanol, 60% by weight of enamel thinner, and 10% by weight of toluene were added to a stirrer and the waste styrofoam was washed and mixed for 24 hours. Next, after oxidizing by adding 40% by weight of xylene, 10% by weight of acetone, and 10% by weight of thinner to the mixture thus prepared, the oxidized solution was frozen at −10 ° C. for about 3 minutes. Heat it to ℃ and dry slowly. After the dried solid is pulverized, lacquer thinner is added and mixed to prepare a liquid paint.

As described above, the present invention has been described for only one preferred embodiment, but it is apparent to those skilled in the art that various changes and modifications can be made within the technical spirit of the present invention based on the above embodiments. It is natural that such variations and modifications fall within the scope of the appended claims.

Thus, according to the paint and the manufacturing method using the waste styrofoam according to the present invention, by recycling the waste styrofoam to be disposed of, there is an advantage to reduce the cost of industrial waste treatment, give a price advantage and reduce environmental pollution. In addition, the use of the components contained in the waste styrofoam, there is no need to add a separate additive, so there is an excellent effect, such as can be widely universalized paint excellent in water resistance, durability, and heat insulation at low cost.

Claims (6)

delete Collected and washed waste styrofoam 45% by weight of toluene, 7% by weight of xylene, 10% by weight of a solvent selected from the group consisting of nucleic acid, cyclonucleic acid, alcohol, ether, halogenated hydrocarbon, acetone 3% by weight Mixing and oxidizing the thinner 35% by weight; Freezing the oxidized mixed solution at -30 ° C to -40 ° C; And Method for producing a paint using waste styrofoam comprising the step of drying the frozen solid by heat treatment at 35 ℃ to 45 ℃ after drying. In claim 2, Dissolving and diluting the powder with a lacca diluent further comprises a method for producing paint using waste styrofoam. delete delete The paint using waste styrofoam prepared by the method of claim 2 or 3.