KR102476342B1 - Oil-stain composition - Google Patents

Abstract

The present invention relates to an oil stain composition, more specifically, comprising: 10-25 wt% of linseed oil, 10-35 wt% of alkyd resin, 1-5 wt% of copper carbonate, 0.1-1 wt% of bentone, 0.1-1 wt% of polyethylene wax, 0.1-1 wt% of phytoncide, 0.1-1 wt% of UV absorber, 1-5 wt% of antifouling agent, 0.1-1 wt% of phosphorus-based flame retardant, and the remaining of dimethyl carbonate. According to the present invention, deformation of wood is prevented, durability is improved due to excellent waterproofing, antisepsis, antifouling, mold resistance, pest control, and the like, and flame retardancy is excellent.

Description

Oil stain composition {OIL-STAIN COMPOSITION}

The present invention relates to an oil stain composition, and more particularly, to prevent deformation of wood, improve durability by increasing waterproof, antiseptic, antifouling, insect repellent, mold resistance, etc., thereby increasing the lifespan of wood and improving flame retardancy. It relates to an oil stain composition that does.

In general, paint refers to a general term for fluid materials that protect and beautify the surface of an object by creating a solid film by painting on the surface of a solid material, and paint, enamel, and the like belong to this category.

The constituent components of these paints include a colorant that is the main component of the paint film, which is the final purpose of the paint, an additive that is a minor element of the paint film formation and is added in small amounts to the main elements to improve various properties such as dispersion, drying, and curing of the paint, and There are solvents used to become crude elements and to make paint easier to apply. Such a paint becomes a transparent paint when no pigment is added, and becomes a colored paint when a pigment is added.

As one of the above paints, there is an oil stain widely used for coloring wood.

Oil stain is often treated on the surface of wood, but it is easily wet and rotted by exposure to the external environment or damaged by insects. In this case, there is a problem that the life of the wood is shortened and maintenance costs are continuously required.

KR 10-1035835 B1 KR 10-2011-0125131 A

Accordingly, an object of the present invention is to provide an oil stain composition capable of increasing the lifespan of wood by preventing deformation of wood, improving durability by increasing waterproof, antiseptic, antifouling, insect repellent, mold resistance, etc. .

Another object of the present invention is to provide an oil stain composition that can improve the flame retardancy of wood.

Oil stain composition according to the present invention, 10 to 25% by weight of linseed oil (LINSEED OIL), 10 to 35% by weight of alkyd resin, 1 to 5% by weight of copper carbonate, 0.1 to 1% by weight of bentone, 0.1 to 1% by weight of polyethylene wax %, 0.1 to 1% by weight of phytoncide, 0.1 to 1% by weight of UV absorber, 1 to 5% by weight of antifouling agent, 0.1 to 1% by weight of phosphorus-based flame retardant and the balance dimethyl carbonate.

The antifouling agent is cuprous oxide (Cu ₂ O).

It is characterized in that it further comprises 1 to 2% by weight of one or more preservatives of tocopherol and kitof.

It is characterized in that it further comprises 1 to 2% by weight of the enzyme-treated starfish extract.

It further comprises 0.5 to 1% by weight of neem extract and 0.5 to 1% by weight of pyrethrum extract, wherein the extraction solvent of the neem extract and pyrethrum extract is ethanol or an aqueous ethanol solution.

It is characterized in that it further comprises 0.1 to 1% by weight of gelatin and 0.1 to 1% by weight of aluminum hydroxide.

According to the oil stain composition of the present invention, deformation of wood is prevented, waterproof, antiseptic, antifouling, mold resistance, insect repellency, etc. are excellent, so durability is improved, and flame retardancy is also excellent.

Hereinafter, the present invention will be described in detail.

The oil stain composition according to the present invention is applied to the surface of wood to improve properties such as durability and flame retardancy of wood.

This oil stain composition can be applied to decks, interior and exterior walls of various wooden buildings, as well as various working environments in which conventional oil-stained wood is used, and its implementation is not limited.

Oil stain composition according to the present invention, 10 to 25% by weight of linseed oil (LINSEED OIL), 10 to 35% by weight of alkyd resin, 1 to 5% by weight of copper carbonate, 0.1 to 1% by weight of bentone, 0.1 to 1% by weight of polyethylene wax %, 0.1 to 1% by weight of phytoncide, 0.1 to 1% by weight of UV absorber, 1 to 5% by weight of antifouling agent, 0.1 to 1% by weight of phosphorus-based flame retardant and the balance dimethyl carbonate.

The linseed oil (LINSEED OIL) is oil made from seeds of linseed, and it is preferable to use one in which the viscosity is increased by 15 to 35% by high temperature treatment. This is because adhesion and permeability to wood are improved through this increase in viscosity, while preventing cracking of the coating film due to extreme temperature changes and delaying discoloration of the wood itself.

The linseed oil is preferably contained in an amount of 10 to 25% by weight based on 100% by weight of the total composition. If the content is too small, it is difficult to improve adhesion and permeability, and even if the amount is excessive, no further enhanced action effect appears. , because it is not economical.

The alkyd resin can increase the drying speed of the oil stain composition, and serves to improve workability due to rapid drying and improve basic physical properties of the oil stain composition. A styrene urethane alkyd resin may be used as the alkyd resin, but is not limited thereto.

The alkyd resin is preferably included in an amount of 10 to 35% by weight based on 100% by weight of the total composition. If the content is too small, it is difficult to improve physical properties, and if the content is excessive, the price is high and the economy is not good.

The copper carbonate serves to increase the preservative properties of wood, and through this, the shelf life of wood can be significantly extended. The copper carbonate is not only homogeneously dispersed in the solvent dimethyl carbonate, but also effectively releases copper ions to prevent damage to pests. The particle size of the copper carbonate is not limited, but is preferably about 1 to 20 μm, which is in consideration of dispersibility and economic feasibility.

The copper carbonate is preferably included in an amount of 1 to 5% by weight based on 100% by weight of the total composition. If the content is too small, it is difficult to improve the preservative properties, and if the content is too small, it is difficult to improve the dispersibility. to be.

The bentone is a suspension made by dispersing organically modified hectorite in volatile silicone and is used as a thickener.

The bentone is preferably included in an amount of 0.1 to 1% by weight based on 100% by weight of the total composition, which takes into account the viscosity of the entire composition.

The polyethylene wax serves to prevent delamination by imparting lubricity to the composition.

The polyethylene wax is preferably included in an amount of 0.1 to 1% by weight based on 100% by weight of the total composition, which takes into account the physical properties of the overall composition.

The phytoncide is a compound word of phyton=plant meaning 'plant' in Greek and cide=killer meaning 'sterilization power', and refers to forest bathing oil that has excellent forest bathing effects and is harmless to the human body. That is, the phytoncide is a volatile substance that trees and plants make and emit on their own to resist pests or fungi, and is an oily liquid in which dozens of components are mixed, and has an excellent sterilization effect. Examples of such phytoncides include hinokitiol of cypress tree, α-cadinol of cypress tree, camphore of camphor tree, ctiral of rose, and menthol of mint. One or two or more of these may be selected and used.

The phytoncide is preferably included in an amount of 0.1 to 1% by weight based on 100% by weight of the total composition. If the content is less than 0.1% by weight, the effect is insignificant, and if the amount is excessive, economic efficiency is reduced.

The UV absorber serves to prevent deterioration of mechanical properties and discoloration of wood by ultraviolet rays. The UV absorber can use various products known in the art to which this technology belongs, for example, 2-(2-hydroxy-5-methylphenyl)benzotriazole, 2-(2-hydroxy-3-tertiary- At least one selected from the group consisting of butyl 5methylphenyl)-5-chlorobenzotriazole and 2-(2-hydroxy-3,5-ditertiary-butylphenyl)-5-chlorobenzotriazole may be used.

These UV absorbers are preferably included in an amount of 0.1 to 1% by weight based on 100% by weight of the total composition.

The antifouling agent is for securing the antifouling property of wood, and it is preferable to use cuprous oxide (Cu ₂ O) as an inorganic antifouling agent.

The antifouling agent is preferably included in an amount of 1 to 5% by weight based on 100% by weight of the total composition.

The phosphorus-based flame retardant serves to form a thermal barrier in case of fire to improve flame retardancy, and the phosphorus-based flame retardant includes at least trialkyl phosphate, alkyldiaryl phosphate and triaryl phosphate in monomeric form, and Resorcinol bisphenyl phosphate (RDP) in oligomeric form. may contain one or more.

The phosphorus-based flame retardant is preferably included in an amount of 0.1 to 1% by weight based on 100% by weight of the total composition.

The dimethyl carbonate is used as a solvent, is a component that accounts for the largest content in the oil stain composition, and is included as the remainder in the composition.

The oil stain composition of the present invention, prepared as described above, has the advantage of preventing deformation of wood, improving waterproof, antiseptic, antifouling, mold resistance, insect repellency, etc. to increase durability, and also improve flame retardancy.

Meanwhile, the oil stain composition according to the present invention preferably further includes at least one preservative selected from tocopherol and chitoef.

The tocopherol and chitoef are natural preservatives, which increase the preservative and antibacterial power of the oil stain composition.

The preservative is preferably included in an amount of 1 to 2% by weight based on 100% by weight of the total composition. to be.

In addition, the oil stain composition according to the present invention preferably further comprises an enzyme-treated starfish extract.

The enzyme-treated starfish extract not only has an excellent heavy metal adsorption function, but also improves the overall physical properties of the coating film. The method for producing the enzyme-treated starfish extract is to add water to the starfish, decompose the protein component in the starfish with a proteolytic enzyme, and obtain only calcium carbonate, which is an inorganic component, and dry it. At this time, the type of starfish is not limited, and star starfish may be used.

The enzyme-treated starfish extract is preferably included in 1 to 2% by weight based on 100% by weight of the total composition. Because.

The oil stain composition of the present invention preferably further comprises a neem extract and a pyrethrum extract. This is to improve the durability of the wood by increasing the pest control property, that is, the insecticidal effect.

The extract of pyrethrum contains a large amount of a component called pyrethrin, which is highly toxic to insects and paralyzes motor nerves, but can be used as an environmentally friendly insecticide that is non-toxic to warm-blooded animals.

In addition, the extract of neem contains a sterilizing and detoxifying ingredient called azadirachtin, so it can be used as a powerful eco-friendly insecticide.

In the present invention, the extraction method of pyrethrum and neem is not limited, but it is sufficient to follow the extraction method of various known plant extracts. However, it is preferable to use ethanol or ethanol aqueous solution as a solvent in order to maximize the insecticidal effect. In addition, the insecticidal effect is most excellent when flowers are used for the pyrethrum and neem fruits are used as the neem. Illustratively, it can be prepared by drying and pulverizing flowers of pyrethrum or neem fruits, adding 2 to 10 times 95% ethanol, extracting at 20 to 40 ° C. for 5 to 30 hours, and concentrating or drying.

The neem extract and pyrethrum extract are preferably included in 0.5 to 1% by weight of neem extract and 0.5 to 1% by weight of pyrethrum extract, based on 100% by weight of the total composition. , in order not to impair the basic physical properties of the composition.

In addition, the oil stain composition of the present invention preferably further improves flame retardancy by further including gelatin and aluminum hydroxide.

The gelatin chemically has amino acid groups such as Alanine, Glycine, Proline, and Glutamic as basic functional groups, and the chains are connected by carbon atoms (i.e., there are many carbonized chains) ), if gelatin is adsorbed to a combustible material, a large amount of ammonia (NH ₃ ), which is an incombustible gas, will be released in case of fire, so that the concentration of the mixed gas around the flammable material does not reach the combustible limit, thereby increasing the flame retardant and flame retardant effect. In addition, it has a great effect on the flame retardant effect by blocking access of oxygen, and the carbonization chain present in gelatin not only shrinks or lowers the oxidation reaction or heat transfer that supplies the amount of heat required for combustion, but also prevents vaporization, which is the main cause of flame propagation. serves as a deterrent. Powdered gelatin may be used as the gelatin.

The aluminum hydroxide (Al(OH) ₃ ) is an inorganic flame retardant used to prevent oxidation, and has non-toxic and low smoke characteristics. In addition, there is an effect of delaying combustion due to dehydration reaction by endotherm.

The gelatin and aluminum hydroxide are preferably included in 0.1 to 1% by weight of gelatin and 0.1 to 1% by weight of aluminum hydroxide based on 100% by weight of the total composition.

In addition, in order for the oil stain composition according to the present invention to have a color, a small amount of pigment may be further added according to the color to be prepared, and the implementation is not limited, of course.

On the other hand, the method for producing an oil stain composition according to the present invention is based on a conventional method for preparing a general oil stain composition, and the method is not limited.

Illustratively, a solvent is added to flax oil, stirred, all other components except for bentone and UV absorber are added, stirred for 30 to 60 minutes, and finally, bentone and UV absorber are further added and stirred for 30 to 60 minutes. can do.

Hereinafter, the present invention will be described in more detail through examples.

(Example 1)

Linseed oil 20% by weight, styreneurethane alkyd resin 30% by weight, copper carbonate (average particle diameter 15㎛) 2% by weight, bentone 0.5% by weight, polyethylene wax 0.5% by weight, phytoncide menthol 0.5% by weight, UV absorber 2-( An oil stain composition was prepared by mixing 0.1% by weight of 2-hydroxy-5-methylphenyl)benzotriazole, 2% by weight of cuprous oxide as an antifouling agent, 0.5% by weight of trialkyl phosphate, and the balance of dimethyl carbonate.

(Example 2)

It was carried out in the same manner as in Example 1, but enzyme-treated starfish extract 1% by weight, pyrethrum extract 1% by weight, neem extract 1% by weight, gelatin powder 0.5% by weight, and aluminum hydroxide 0.5% by weight were further mixed.

At this time, in the enzyme-treated starfish extract, 1.5 L of water was added to 500 g of star starfish, and 15 g of proteolytic enzyme (Protamex TM, Novoenzyme, Denmark) was added and maintained at 55 ° C. for 10 hours to sufficiently degrade protein. . Then, only the immersed calcium carbonate component was collected, and 30 g of the collected calcium carbonate component was put in 300 ml of boiling water at 100 ° C., heated for 10 minutes, sufficiently dried in the shade, and pulverized with 300 to 500 mesh.

For the pyrethrum extract, pyrethrum flowers were dried in a dry oven at 60° C. for 4 days, and pulverized to obtain 200 g of pulverized product. Then, 1 kg of 95% ethanol was added thereto, extracted at room temperature for 20 hours, filtered using a Whatman filter paper, concentrated under reduced pressure at 45 ° C using a rotary evaporator, and freeze-dried.

For the neem extract, neem fruit was dried in a dry oven at 60° C. for 4 days, and pulverized to obtain 200 g of pulverized product. Then, 1 kg of 95% ethanol was added thereto, extracted at room temperature for 20 hours, filtered using a Whatman filter paper, concentrated under reduced pressure at 45 ° C using a rotary evaporator, and freeze-dried.

(Experimental Example 1)

The sample prepared as described above was applied to the surface of Douglas fir wood so that the thickness of the coating was 0.05 mm, and dried at room temperature for 48 hours.

In addition, an outdoor exposure test, a water resistance test, a mold resistance test, and a flame retardant test were conducted, and the results are shown in Table 1 below. As Comparative Example 1, a commercially available oil stain for wood was purchased and used.

In the outdoor exposure test, the test piece was placed on a test board at an angle of 45 degrees and left outdoors for one year, and then the observation results such as color difference, peeling of the coating, swelling, cracking, and cracking were comprehensively judged.

In the water resistance test, the test piece was immersed in 23 ± 1 ° C water, and the results of observation such as color difference, peeling of the coating, swelling, cracking, cracking, etc. were comprehensively judged immediately after taking out after 48 hours and after 2 hours.

For the mold resistance test, draw a circle with a diameter of about 4 cm on Whatman #3 filter paper, apply a certain amount of the sample to the circle, dry it for 3 days, cut the circle, and use it as a specimen. In the mold resistance test, a specimen prepared on PDA (Potato Dextrose Agar) was placed, sprayed with a certain amount of mold (Aspergillus niger) of 0.8 to 1.2 μm spores/ml, and then cultured for 4 weeks at 25 ° C and 80% humidity. (Grade 0 - strains do not grow, Grade 1 - strains grow less than 10%, Grade 2 - strains grow 10 to 30%, Grade 3 - strains grow 30 to 60%, Grade 4 - strains more than 60% ) was judged according to.

The flame retardant test was conducted in accordance with the Ministry of Public Safety and Security (Firefighting Industry Division) Notice No. 2015-1 (Revised Notice No. 2016-138) flame retardant performance standards (standard carbonization length within 20cm, carbonization area within 50cm2, residual flame time 10 seconds Within).

Experimental Example 1 Results Item Example 1 Example 2 Comparative Example 1 outdoor exposure test Good Good coating peeling water resistance Good Good partial exfoliation mold resistance Grade 0 Grade 0 1st class flame retardant performance carbonization length
(within 20cm) 19cm 7cm 25 cm carbon area
(within 50cm²) 41cm² 21cm² 68cm2 Afterburn time
(within 10 seconds) 8 seconds 0 seconds 15 seconds

As shown in Table 1, Examples 1 and 2 of the present invention were confirmed to be excellent in outdoor exposure test, water resistance, mold resistance, and flame retardancy.

As described above, the technical idea of the present invention has been specifically described in the preferred embodiment, but the above preferred embodiment is for explanation and not for limitation. As such, those skilled in the art will understand that various embodiments are possible through the combination of the embodiments of the present invention within the scope of the technical spirit of the present invention.

Claims (6)

delete delete linseed oil (LINSEED OIL) 10-25 wt%, alkyd resin 10-35 wt%, copper carbonate 1-5 wt%, bentone 0.1-1 wt%, polyethylene wax 0.1-1 wt%, phytoncide 0.1-1 wt%, 0.1 to 1% by weight of a UV absorber, 1 to 5% by weight of an antifouling agent, 0.1 to 1% by weight of a phosphorus flame retardant and the balance of dimethyl carbonate,
Oil stain composition characterized in that it further comprises 1 to 2% by weight of one or more preservatives of tocopherol and chitoef.
linseed oil (LINSEED OIL) 10-25 wt%, alkyd resin 10-35 wt%, copper carbonate 1-5 wt%, bentone 0.1-1 wt%, polyethylene wax 0.1-1 wt%, phytoncide 0.1-1 wt%, 0.1 to 1% by weight of a UV absorber, 1 to 5% by weight of an antifouling agent, 0.1 to 1% by weight of a phosphorus flame retardant and the balance of dimethyl carbonate,
Oil stain composition characterized in that it further comprises 1 to 2% by weight of the enzyme-treated starfish extract.
linseed oil (LINSEED OIL) 10-25 wt%, alkyd resin 10-35 wt%, copper carbonate 1-5 wt%, bentone 0.1-1 wt%, polyethylene wax 0.1-1 wt%, phytoncide 0.1-1 wt%, 0.1 to 1% by weight of a UV absorber, 1 to 5% by weight of an antifouling agent, 0.1 to 1% by weight of a phosphorus flame retardant and the balance of dimethyl carbonate,
Further comprising 0.5 to 1% by weight of neem extract and 0.5 to 1% by weight of pyrethrum extract,
The oil stain composition, characterized in that the extraction solvent of the neem extract and the pyrethrum extract is ethanol or an aqueous ethanol solution.
linseed oil (LINSEED OIL) 10-25 wt%, alkyd resin 10-35 wt%, copper carbonate 1-5 wt%, bentone 0.1-1 wt%, polyethylene wax 0.1-1 wt%, phytoncide 0.1-1 wt%, 0.1 to 1% by weight of a UV absorber, 1 to 5% by weight of an antifouling agent, 0.1 to 1% by weight of a phosphorus flame retardant and the balance of dimethyl carbonate,
Oil stain composition characterized in that it further comprises 0.1 to 1% by weight of gelatin and 0.1 to 1% by weight of aluminum hydroxide.