KR101997644B1 - Smoke inhibiting binder compositions for making eco-friendly functional particle board, smoke inhibiting binder using the same, and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a smoke inhibiting binder composition for preparing a particle board, and an eco-friendly functional particle board using a binder prepared by using the same and, more specifically, to a smoke inhibiting binder for preparing a particle board which can significantly improve smoke inhibiting properties of the particle board, has flame retardancy, antibiotic and antifungal properties, germicidal properties, deodorizing properties, tensile strength, disruptive strength and bending strength, and can prevent and/or minimize emission of formaldehyde; and to an eco-friendly functional particle board prepared by using the same.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a transparent binder resin composition for use in functional eco-friendly particle boards, a transparent binder prepared by using the same, and a method for manufacturing the same. BACKGROUND ART < RTI ID = 0.0 >

The present invention relates to a binder which is suitable for use in the production of particle boards, a composition for use in the preparation thereof, and a process for producing the same.

Conventionally developed particle boards (hereinafter referred to as PBs) produce wood from logs and break up the remaining waste into small pieces, or break up waste materials of buildings, household waste materials, wood byproducts, It is a processing material made by mixing adhesive and pressing at high temperature and high pressure. The amount of waste wood used for the production of PB is 11,260,400 m3, which is 40% of the annual domestic demand of wood (as of 2015) 28,151,000 ㎥.

In addition, in order to manufacture PB, wood chips were generally manufactured by assembling a thermosetting synthetic resin system as an adhesive bond. Formation of formaldehyde, which is a causative substance of atopic skin, may occur when the above-mentioned preparation is performed, and organic volatile organic compounds (VOCs) may be released from a binder used for attaching a sheet or a film to the PB surface. The recognition of PB is not good because of the disadvantages such as the occurrence of deadly toxins.

PB is made of waste wood, and the strength of wood itself is low, so it is exposed to decay and weather, and many of them become discolored, worn and cracked, and even the termite and salt food damage causes weakness and durability. It can be a dead wood. In addition, wood absorbs or desorces water molecules (H ₂ O) in celluloses and hemicelluloses, which occupy more than 70% of the cell wall, depends on the relative humidity and temperature. There is also a theory that it will be up to 30%.

In addition, furniture, desk, kitchen furniture (sink), and built-in furniture that have been processed with PB over time tend to peel off the adhesive film or sheet paper as the finish. When moisture is generated inside the PB plate as a peeled part, the PB chip rapidly expands to weaken the bonding force, causing a problem that bacteria and fungus may breed, which may cause hygiene problems. Accordingly, there has been an attempt to develop a functional PB having improved and improved the above problems. However, existing developed products have a reduction effect on formaldehyde and / or VOCs generated from the particle board. However, There is a problem that the improved range of effect is insufficient such that smoke is generated and the commerciality is deteriorated. Accordingly, there is a need for a novel particle board material and a functional particle board using the same, which can increase the commerciality with superior suppression effect while minimizing the pollutants emitted from the particle board.

Korean Publication No. 10-2013-0074504 (Publication date 2013. 07. 04)

Accordingly, the present inventors have made effort to provide a particle board that overcomes the disadvantages of the conventional particle board. As a result, the inventors of the present invention have found that when a particle board is manufactured using the composition of the present invention, the particle board is excellent in fire retardancy, durability, The present invention has been completed. That is, an object of the present invention is to provide a permeable binder for functional eco-friendly particle board and a functional eco-friendly particle board using the same.

In order to solve the above-mentioned problems, the present invention provides a transparent binder resin composition for eco-friendly particle board, water; And a melamine resin.

In a preferred embodiment of the present invention, the opacifier may include a crystal prepared by processing at least two selected from boric acid, zinc carbonate, and magnesium hydroxide.

In a preferred embodiment of the present invention, the opacifier may include crystals prepared by processing boric acid, zinc carbonate, and magnesium hydroxide.

In one preferred embodiment of the present invention, the crystal may be obtained by processing boric acid, zinc carbonate, and magnesium hydroxide at a weight ratio of 1: 3.0 to 4.5: 1.4 to 2.0.

In a preferred embodiment of the present invention, the oxidizing agent comprises a first step of preparing a saturated aqueous solution of boric acid; A step of heating a saturated aqueous solution of boric acid, dissolving zinc carbonate and magnesium hydroxide in a saturated aqueous solution of boric acid and then boiling; And cooling, filtering, and then drying the filtrate to obtain white crystals.

In one preferred embodiment of the present invention, the permeable binder composition of the present invention may contain 0.1 to 5.0% by weight of the antistatic agent, 10 to 15% by weight of water and a residual amount of a melamine resin.

In one preferred embodiment of the present invention, the permeable binder composition of the present invention may further comprise a flame retardant.

In one preferred embodiment of the present invention, the permeable binder composition of the present invention may further comprise a flame retardant adjuvant.

In one preferred embodiment of the present invention, the permeable binder composition may further comprise an intensifier.

In one preferred embodiment of the present invention, the permeable binder composition of the present invention may further comprise a desiccant.

In one preferred embodiment of the present invention, the permeable binder composition of the present invention may further comprise an antimicrobial agent.

As a preferred embodiment of the present invention, the permeable binder composition of the present invention may further comprise a coupling agent.

In one preferred embodiment of the present invention, the permeable binder composition of the present invention may further comprise a preservative.

In one preferred embodiment of the present invention, the permeable binder composition of the present invention may further comprise a penetrating agent.

In a preferred embodiment of the present invention, the flame retardant may include silane-coated ammonium and ammonium polyphosphate.

In one preferred embodiment of the present invention, the flame retardant may include silane-coated ammonium and ammonium polyphosphate in a ratio of 1: 1.5 to 3.0.

In a preferred embodiment of the present invention, the flame-retardant adjuvant may include at least one selected from ammonium sulfate, ammonium polyphosphate and polyphosphazene.

In one preferred embodiment of the present invention, the permeable binder composition of the present invention comprises 0.5 to 5.0% by weight of an opacifying agent, 20 to 25% by weight of a flame retardant, 0.5 to 2.0% by weight of a flame retardant auxiliary, 0.3 to 1.2% To about 2.0% by weight of an antimicrobial agent, from about 1.0% to about 3.0% by weight of an antimicrobial agent, from about 0.3% to about 1.2% by weight of a coupling agent, from about 0.05% to about 1.2% .

Another object of the present invention is to provide a method for preparing a permeable binder using the permeable binder composition, comprising the steps of: preparing a permeable binder composition having various compositions as described above; Mixing the permeable binder composition and stirring the mixture at a stirring speed of 800 to 1,500 rpm for 10 to 30 minutes to prepare an agitated material; And aging the agitated material in a dark room at 20 to 35 DEG C for 6 to 12 hours to obtain a binder.

It is still another object of the present invention to provide a binder which contains aged material of a mixture obtained by mixing the above-described permeable binder compositions of various compositions.

Another object of the present invention is to provide a particle board comprising a thermocompression product of a coating on which a particle chip is penetrated and coated with the transparent binder.

The eco-friendly functional particle board (PB) produced by using the permeable binder of the present invention is superior in strength to PB prepared by using conventional melamine binder resin, and is excellent in fine dust and dust It is possible to effectively prevent or minimize the generation of odors, bacteria and fungi due to the decay of the inside of the PB chip due to the hygroscopic absorption of the PB, and furthermore, the antibacterial, Deodorization and the like. It is also possible to remove unreacted residual (free) formaldehyde in the melamine resin (or urea melamine resin) solution and the volatile organic compounds (VOCs) released from the adhesive that adheres the sheet or film to the surface of the PB by a finishing operation, It is possible to suppress the generation of smoke at the time of use, and to provide a PB which is very excellent in both ductility and flame retardancy.

Fig. 1 (A) is a photograph of a pulverizer for manufacturing a particle chip for producing PB of the present invention, B is a PB dryer, C is a dry state in a dryer, D is a cutter of PB and E is a PB coater.
2 shows the results of the antimicrobial activity measurement of Comparative Preparation Example 1. Fig.
Fig. 3 shows the results of the antimicrobial activity measurement in Production Example 1. Fig.
Fig. 4 shows the result of confirming the fungus resistance grade of Comparative Production Example 1. Fig.
Fig. 5 shows the result of confirming the fungus resistance grade of Preparation Example 1. Fig.
Fig. 6 shows the result of confirming the mold resistance of Comparative Production Example 1. Fig.
Fig. 7 shows the result of confirming the mold resistance of Production Example 1. Fig.
8 shows the results of confirming the flame retardancy (flame retardancy) of the functional environmentally friendly PB prepared in Preparation Example 1.
FIGS. 9A to 9D show the results of measurement of smoke density for radiant heat in Production Example 1. FIG.
FIGS. 10A to 10D show the results of measurement of smoke density for the firing column of Production Example 1. FIG.
11 shows the results of checking the removal rates of total volatile organic compounds (TVOC), toluene (toluene) and formaldehyde in Comparative Production Example 1. FIG.
12 shows the results of confirming the removal rates of total volatile organic compounds (TVOC), toluene (toluene) and formaldehyde in Production Example 1. FIG.
Fig. 13 shows the result of confirming the plane tensile strength of Comparative Production Example 1. Fig.
Fig. 14 shows the result of confirming the plane tensile strength of Production Example 1. Fig.

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

In general, a variety of binder resins are used for bonding particle chips in the production of PB. Urea resins, melamine resins (or urea melamine resins), and phenol resins are used as such binder resins. Since the melamine resin forms a colorless transparent film when cured, it is widely used in the manufacture of floorboards, furniture members, adhesion of veneers at the time of manufacture, low-pressure melamine, high-pressure melamine, high-pressure laminate, overlay, have. The coating or coating formed by curing the melamine resin is resistant to water resistance, heat resistance, and chemical resistance. In addition, melamine resins are colorless and transparent and hard, so they are widely used as floorboards, roofing boards, inner wall materials, crosslinking agents, and PB adhesives.

Although the PB is somewhat different according to the amount of formaldehyde emission, depending on the u type PB, the M type PB and the P type PB, it is generally specified to be 5 mg / L or less based on the formaldehyde emission amount at the time of shipment.

In recent years, it has been further strengthened to the former formaldehyde emission amount. E0 type at 0.5 mg / L or less, E1 type at 1.5 mg / L or less, E2 type at 5 mg / L or less, Among plate products, 72.1% of PB and 86.2% or more of MDF were products other than KS-based grades, but are now gradually shifting to E1 and E0 levels. Various methods for reducing the amount of formaldehyde generated have been attempted since the standards and regulations for formaldehyde emission have been strengthened. In the present invention, 0.1% by weight of residual formaldehyde in the melamine resin is contained, And a permeable binder for PB manufacture.

The present invention can use at least one selected from the group consisting of urea resin, melamine resin and phenol resin as an adhesive resin, in which a permeable binder composition (hereinafter referred to as "composition") for the production of a functional environmentally friendly particle board Preferably, a melamine resin can be used.

PB is a processing material made by crushing waste wood, building waste materials, household waste materials, wood by-products, etc., made into small pieces and mixing adhesive with high temperature and high pressure. It reduces heat of combustion by endothermic reaction during combustion, There is a high possibility that a large amount of harmful smoke (gas) is generated when the reaction such as dehydration work, and the smoke density is high. Accordingly, the composition of the present invention may further comprise a suppressing agent for suppressing the generation of harmful smoke (gas). As the oxidizing agent, a common oxidizing agent used in the present invention can be used. Preferably, a crystal prepared by processing two or three kinds selected from boric acid, zinc carbonate and magnesium hydroxide (Mg (OH) 2) More preferably a crystal prepared by processing boric acid (H ₃ BO ₃ ), zinc carbonate (ZnCO ₃ ) and magnesium hydroxide at a weight ratio of 1: 2.5 to 5: 1.0 to 2.5, more preferably A crystal prepared by processing boric acid, zinc carbonate, and magnesium hydroxide at a weight ratio of 1: 3.0 to 4.5: 1.4 to 2.0 can be used as a suppressing agent. In addition, the boric acid in the oxidizing agent component is well soluble in hot water, exhibits weak acidity, and has a weak sterilizing action and antiseptic property. Due to their bactericidal properties, they have a high level of resistance to natural insect repellents, mold growth inhibition and termites. Therefore, when the oxidizing agent is used, not only the smoke of PB but also flame retardancy, bactericidal, antifungal and termite resistance can be increased. At this time, when the zinc carbonate and the magnesium hydroxide are out of the weight ratio range, the opacifying effect may be relatively decreased as compared with the case where the zinc carbonate and magnesium hydroxide are used within the weight range.

In the first step, the boron-containing agent dissolves boric acid in water to prepare a saturated boric acid aqueous solution; A step of heating a saturated aqueous solution of boric acid, and then dissolving one or two selected from zinc carbonate and magnesium hydroxide in a heated saturated aqueous solution of boric acid and then boiling; And cooling, filtering, and then drying the filtrate to obtain white crystals.

The amount of the boric acid, zinc carbonate and magnesium hydroxide used is preferably such that the weight ratio between the above-mentioned components is satisfied.

In a preferred embodiment of the present invention, 5 mL (3 g) of boric acid is injected into a beaker filled with 50 mL of water, heated at 80 to 105 ° C for 20 to 40 minutes so as to become a saturated solution, 10 mL (11 g) of zinc is poured into a saturated solution of boric acid, and 5 mL (5.5 g) of magnesium hydroxide (Mg (OH) 2) is added while stirring is continued at 800 to 1,400 rpm. Next, the mixture is boiled for 50 minutes to 90 minutes, left to stand for 5 to 8 hours, filtered, and then dried to obtain white columnar crystals.

The content of the suppressing agent in the composition of the present invention may be 0.1 to 5.0% by weight, preferably 0.5 to 2.5% by weight, more preferably 0.6 to 1.0% by weight. At this time, if the content of the oxidizing agent is less than 0.1% by weight, the use amount thereof may be too small to exhibit an oppressive effect. If the content exceeds 5.0% by weight, other properties such as the plane tensile strength of PB There may be a problem that is rather degraded.

In the composition of the present invention, the water is used for the purpose of mixing the adhesive resin of the permeable binder with other compositions and securing an appropriate viscosity of the binder. The water is used in an amount of 10 to 15% by weight, preferably 10 to 13.5% It is more preferable to use 10.2 to 12.5% by weight, and if the water content is less than 10% by weight, there may be a problem that the components are not mixed well. If the water content is more than 15% by weight, The moisture content is increased and the drying time is prolonged and the mixture of the composition is not aged well so that there is a problem that the physical properties of the PB made with the soft binder are inferior.

PB is a processed wood rather than a wood, and it is made by using it as furniture waste material, wood by-product, etc., so that when the fire is made, the ignition point is very low and there is a problem that it burns easily. Accordingly, the composition of the present invention may further comprise a flame retardant and a flame retardant adjuvant to impart flame retardancy to the PB.

As the flame retardant, a flame retardant for wood generally used in the related art can be used, but at least one selected from silane-coated ammonium polyphosphate and ammonium polyphosphate (aqueous APP) can be used.

Ammonium polyphosphate (water-soluble APP) is excellent in the effect of removing metal ion odor, and has excellent dispersing action and prevention of crystal formation. And has a function of preventing the precipitation of a poorly soluble substance as crystals and preventing the change of pH. However, the ammonium polyphosphate has a problem of water resistance, and may cause a problem of generating bleed when placed under high temperature and high humidity conditions. And insufficient heat resistance, it melts well at around 90 ~ 110 ° C, and there is not much adhesion and solution viscosity at all, which is insufficient for single use. In addition, when the melamine compound is coated on the surface of the powder of ammonium polyphosphate, it has a large specific gravity and a good bottom sediment, poor dispersibility, stickiness and poor drying property. Therefore, it is more preferable to mix the silane-coated ammonium polyphosphate and the ammonium polyphosphate as the flame retardant. The ammonium polyphosphate coated (coated) with silane has good dispersibility and sedimentability and can increase the bonding force between the particle chips.

Here, the optimal composition ratios for using the silane-coated ammonium polyphosphate and ammonium polyphosphate as flame retardants are 1: 1.5 to 3.0 volume ratio, preferably 1: 1.8 to 2.5 volume ratio, of the silane-coated ammonium polyphosphate and ammonium polyphosphate , More preferably in a ratio of 1: 1.8 to 2.2 by volume. If the amount of ammonium polyphosphate is less than 1.5 parts by volume based on the amount of ammonium polyphosphate, the amount of the silane-coated polyphosphate in the composition is relatively large and the flame retardancy may be rather reduced. If ammonium polyphosphate is used in an amount exceeding 3.0 parts by volume, The amount of the coated ammonium polyphosphate is relatively small so that the mechanical properties of the PB may be lower than when a proper amount of the ammonium silane-coated polyphosphate is used.

The optimum amount of the flame retardant in the composition of the present invention is 20 to 25% by weight, preferably 21.5 to 25% by weight, more preferably 22.5 to 24.5% by weight in the total weight of the composition. If the content of the flame retardant is less than 20% by weight, proper flame retardancy and flame retardancy may not be secured. If the content of the flame retardant exceeds 25% by weight, permeability of the binder resin produced by the composition of the present invention to particle chips, There may be a problem that other physical properties such as mechanical properties of PB are deteriorated, so it is preferable to use within the above range.

The composition of the present invention may further comprise a flame retardant aid in addition to the flame retardant. As the flame retardant aid, at least one selected from ammonium sulfate ((NH4) 2SO4), ammonium polyphosphate and polyphosphazene can be used, and preferably at least one selected from ammonium sulfate and ammonium polyphosphate, Ammonium sulfate may be used. When the flame-retarding auxiliary agent is mixed with additives, preferably sulfur-containing additives, pyrometallic acid is produced by pyrolysis at the time of combustion, and this is caused by dehydration when the protective layer is formed and when polymetaphosphoric acid is formed (Carbonaceous) film can block oxygen to give a high heat resistance (flame retardancy). The content of the flame-retardant auxiliary in the composition of the present invention is preferably 0.5 to 2.0% by weight, more preferably 0.6 to 1.6% by weight, and still more preferably 0.75 to 1.40% by weight. The use amount is too small and there is no effect of improving the flame retardancy due to the use of the flame-retardant aid. Even when the flame-retardant aid is used in an amount exceeding 2.0% by weight, further flame retardancy is not always effective.

PB is composed of waste residue after manufacturing of single plate, waste residue of wood, pulp chips, sawdust, various sawdust, waste residue after woodworking, waste residues after construction of wooden houses, and apartment house waste residues. When these waste materials are used, the strength is weak in the production conditions and shrinkage expansion may occur due to moisture fluctuation. In order to improve the above disadvantages, the composition of the present invention may further include a strength reinforcing agent in order to make the part of the particle chip having a weakened strength to become a coating and to exhibit tensile strength reinforcement, water resistance, moisture resistance and antiseptic function. As the strength reinforcing agent, a mixed powder obtained by mixing aerogels and pyrophyllite may be used. Preferably, airgel and pyrophyllite are mixed at a weight ratio of 1: 0.40 to 1.00, more preferably 1: 0.60 to 0.85 weight ratio of airgel and pyrophyllite Mixed powders may be used.

The aerogels are highly porous nanostructures having a specific surface area of 600 to 1,500 m ² / g and are composed of nanoparticles having a size of 1 to 50 nm. The porous structure of the airgel is excellent in heat insulation, Can be prevented from cracking, and the strength is increased by mixing with pyrophyllite. In addition, the aerogels increase the adhesive force to improve the adhesion of the particle chip chips, the flat tensile strength, and the thermal deformation and improve the long-term deformation by the load. Pyrophosphate is abundant in fat, has the function of refractory, filler, and is well mixed with aerogels.

The content of the reinforcing agent in the composition of the present invention may be 0.3 to 1.2% by weight, preferably 0.5 to 1.0% by weight, more preferably 0.60 to 0.80% by weight. If the content of the reinforcing agent is less than 0.3% by weight, the amount of the reinforcing agent to be used is too small to improve the mechanical strength of the PB. If the amount of the reinforcing agent is more than 1.2% by weight, the other properties of the PB may deteriorate There may be a problem.

Over time, when the sheet or sheet of paper as a finish material has poor adhesion and moisture is generated inside the PB board, the particle chip expands rapidly and the bonding force rapidly increases. The problem of weakening and hanging occurs, and bacteria and fungi are breeded, which may cause hygiene problems. The composition of the present invention may further include a desiccant to compensate for and improve the above problems. As the desiccant, general desiccants used in the art can be used, and liquid paraffin wax can be preferably used. Moisture resistance of PB can be improved by infiltration of liquid paraffin wax into the particle chip or coating on the surface of the particle. Fluid paraffin wax can retard water content and dimensional change without changing the function of PB and improve water resistance and moisture resistance . The content of the moisture-proofing agent in the composition of the present invention may be 0.5 to 2.0 wt%, preferably 0.5 to 1.6 wt%, more preferably 0.7 to 1.0 wt%. If the content of the moisture-proofing agent is less than 0.5% by weight, the amount of the moisture-proofing agent used may be too small to improve the water resistance and moisture resistance of the PB. If the moisture-proofing agent is used in an amount exceeding 2.0% by weight, The mixing property with the particle chip is deteriorated and there is a problem that the permeability of the binder to the particle chip is low. Therefore, it is preferable to use within the above range.

In addition, the composition of the present invention may further comprise an antibacterial agent to impart antimicrobial activity, antifungal property, bactericidal activity, deodorizing property and the like of PB. The antimicrobial agent may include at least one selected from an organic antimicrobial agent and an inorganic antimicrobial agent, preferably an inorganic antimicrobial agent. The inorganic antimicrobial agent is preferably a mixture of Ag nanoparticles and titanium dioxide (TiO ₂ ) nanoparticles containing silver nanoparticles and titanium dioxide (TiO ₂ ) nanoparticles in a weight ratio of 1: 0.5 to 1.0 TiO ₂ ) nanoparticles in a weight ratio of 1: 0.75 to 1.00. Silver (Ag) nanoparticles are not only strong in antibacterial and disinfecting power, they are used as antibiotics in a wide range of fields such as deodorization, formaldehyde (CH ₂ O) and VOCs removal, far-infrared and anion emission, and mixed with titanium dioxide nanoparticles Thereby eliminating volatile organic compounds released from the residual formaldehyde in the adhesive resin and the binders used to adhere the sheet or film, and the odor from the process of decomposing due to the absorption of waste wood, and even the harmful effects of termites, Or deterioration of strength and durability thereof, can be solved, and a deodorant and antiseptic (antiseptic) effect can be obtained.

The content of the antibacterial agent in the composition of the present invention may be 1.0 to 3.0% by weight, preferably 1.5 to 2.7% by weight, more preferably 1.70 to 2.20% by weight based on the total weight of the composition, If the content of the antimicrobial agent is less than 1.0 wt%, the antimicrobial effect may be insufficient, and even if the antimicrobial agent content exceeds 3.0 wt%, the antimicrobial effect is not further increased.

Since the permeable binder prepared from the composition of the present invention may be non-polar, hydrophobic, the binding force with the hydrophilic particle chip may be deteriorated. The composition of the present invention may further include a coupling agent to improve the chemical bonding between the interface between the permeable binder and the particle chip. The introduction of coupling agent can increase bending strength, elastic modulus, dimensional stability, and impact strength. The content of the coupling agent is 0.3 to 1.2% by weight, preferably 0.5 to 1.2% by weight, more preferably 0.65 to 1.0% by weight, based on the total weight of the composition. %. ≪ / RTI > If the content of the coupling agent is less than 0.5 wt%, the effect of increasing the physical properties due to the use of the coupling agent may be insufficient. If the content of the coupling agent is more than 1.2 wt%, the viscosity of the binder is increased. On the contrary, And there is a problem that the flame retardancy of PB is lowered. Therefore, it is preferable to use within the above range.

In order to effectively inhibit generation of mosses, microorganisms, and other pollens due to corrosion or decay of PB interior or surface due to penetration of moisture, to inhibit the generation of fungi which corrode sterilization, insect pests or termite particle chips, As shown in FIG. As the preservative, at least one selected from an organic preservative and an inorganic preservative can be used, preferably an inorganic preservative, more preferably copper sulfate (CuSO ₄ ), which is an inorganic preservative. The content of the preservative in the composition of the present invention may be 0.05 to 1.2% by weight, preferably 0.50 to 1.20% by weight, and more preferably 0.70 to 1.15% by weight based on the total weight of the composition. If the preservative content is less than 0.05% by weight, the preservative effect may be inadequate and the preservative effect may not be exhibited. If the preservative content is more than 1.2% by weight, the preservative effect is excellent, but the penetration effect of the permeable binder on the particle chip is decreased The mechanical properties of the PB may be reduced.

The composition of the present invention may further comprise a penetrating agent so that the permeable binder is uniformly penetrated into the particle chip. At this time, the penetrant may be a common penetrant used in the art, and preferably an anionic alkyl succinate may be used. The amount of the penetrating agent may be 0.2 to 1.0 wt%, preferably 0.4 to 1.0 wt%, more preferably 0.65 to 1.00 wt%, based on the total weight of the composition. If the amount of the penetrating agent is less than 0.2 wt%, the amount of the penetrating agent used may be too small to achieve the effect of using it. If the amount of the penetrating agent is more than 1.0 wt%, the physical properties of the PB may not be improved. It is preferable to use it within the above range.

The above-described composition of the present invention can be used to produce a transparent binder by the following method.

The binder of the present invention comprises a first step of preparing a composition of various compositions as described above; A step of mixing the above-mentioned composition and then producing a stirred product; And (3) aging the agitated product. The binder can be produced by a process comprising the steps of:

The composition of the first step is as described above.

The two-stage stirred product can be prepared by stirring the composition of the first stage at a stirring rate of 800 to 1,500 rpm for 10 to 30 minutes, preferably at a stirring rate of 1,000 to 1,350 rpm for 15 to 25 minutes. At this time, if the stirring speed is less than 800 rpm, the composition components may not dissolve well, and if the stirring speed exceeds 1,500 rpm, bubbles may occur. The stirring time is a relative suitable stirring time according to the stirring speed.

The aging is carried out in a dark room at 20 to 35 ° C for 6 to 12 hours, preferably in a dark room at 20 to 30 ° C for 7 to 10 hours It is allowed to stand and aged to produce the inventive bindable binder.

The thus-produced permeable binder of the present invention can be applied to a particle chip to produce PB. In a preferred embodiment, the particle chip is put into an automatic mixing coater, and then the permeable binder is charged and mixed , A first step in which a permeable binder is used to prepare a coating that is permeable to particle chips; Pressing the coating material with a hot press to produce a thermocompression product; Followed by drying the thermocompression product in three steps to produce a functional eco-friendly particle board.

In the first step, the amount of the permeable binder may be from 32.5 to 48.7 parts by weight, preferably from 35.0 to 45.0 parts by weight, and more preferably from 37 to 43 parts by weight, based on 100 parts by weight of the particle chip. At this time, if the amount of the permeable binder is less than 32.5 parts by weight, the binder may not be sufficiently penetrated into the particle chip, so that the physical properties of the PB may be poor. When the amount of the binder is 48.7 parts by weight or more, There may be a falling problem.

The two-step pressing is performed by pressing the coating material of the first step into a hot press at an upper plate temperature of 100 to 120 ° C and a lower plate temperature of 110 to 155 ° C for 5 to 10 minutes to 60 to 80 kgf / cm ² .

After completion of the thermocompression bonding, the functional eco-friendly particle board of the present invention can be manufactured by drying at room temperature (18 to 35 ° C) for 1 to 3 days.

Hereinafter, preferred embodiments and experimental examples are provided to facilitate understanding of the present invention. However, the following examples and experiments are provided only for the purpose of easier understanding of the present invention, and the present invention is not limited by the examples and experimental examples.

[ Example ]

Preparation Example  1-1: Preparation of flame retardant

Silane-coated ammonium polyphosphate and ammonium polyphosphate (water-soluble APP) in a volume ratio of 1: 2 to prepare a flame retardant.

Preparation Example  1-2 to 1-3 and Example of comparison preparation  1-1-2

A flame retardant was prepared in the same manner as in Preparation Example 1, except that the silane-coated ammonium polyphosphate and ammonium polyphosphate were mixed and stirred to prepare a flame retardant.

division Silane-coated ammonium polyphosphate and ammonium polyphosphate Volume Ratio Preparation Example 1-1 1: 2.0 Preparation Example 1-2 1: 1.8 Preparation Example 1-3 1: 2.5 Comparative Preparation Example 1-1 1: 1.0 Comparative Preparation Example 1-2 1: 3.5

Preparation Example  2-1: Blanched  Produce

3 g of boric acid was added to a beaker filled with 50 ml of water, and heated and stirred at 95 캜 for 30 minutes so as to become a saturated solution to prepare a boric acid solution.

Next, 11 g of basic zinc carbonate was added to the boric acid solution, and 5.5 g of magnesium hydroxide (Mg (OH) ₂ ) was added while stirring was continued at 1,200 rpm.

Next, the magnesium hydroxide-added solution was boiled for 1 hour and left for 6 hours.

Next, after filtration, the filtrate was dried to obtain a white columnar crystal, which was prepared as an oxidizing agent.

Preparation Example  2-1 to 2-3 and Example of comparison preparation  2-1 to 2-2

Boric acid, zinc carbonate and magnesium hydroxide were added and stirred in the same manner as in Preparative Example 2-1 so as to have the composition ratios shown in Table 2 below, thereby preparing white opaque pillar-shaped opacifiers .

division Boric acid, zinc carbonate, and magnesium hydroxide weight ratio Preparation Example 2-1 1: 3.67: 1.83 Preparation Example 2-2 1: 4.21: 1.45 Preparation Example 2-3 1: 3.20: 1.95 Comparative Preparation Example 2-1 1: 2.13: 1.83 Comparative Preparation Example 2-2 1: 3.67: 0.50 Preparation for Comparison Example 2-3 1: 3.67: 3.67

Preparation Example  3-1: Preparation of antimicrobial agent

(Ag) nanoparticles and titanium dioxide (TiO ₂ ) nanoparticles in a weight ratio of 1: 0.87.

Preparation Example  3-2 to 3-3 and Example of comparison preparation  3-1 to 3-2

Antimicrobial agents were prepared in the same manner as in Preparation Example 3-1 except that silver nanoparticles and titanium dioxide nanoparticles were mixed so as to have the composition ratios shown in Table 3 below to prepare mixed nano powders (antibacterial agents).

division Silver nanoparticle and titanium dioxide nanoparticle weight ratio Preparation Example 3-1 1: 0.87 Preparation Example 3-2 1: 0.75 Preparation Example 3-3 1: 1.00 Comparative Preparation Example 3-1 1: 0.30 Comparative preparation example 3-2 1: 1.20

Preparation Example  4-1: Strength reinforcement  Produce

Mixed powders were prepared by mixing an aerogel (Talc) having a specific surface area of 600 to 1,500 m ² / g and a size of 1 to 50 nm with pyrophyllite at a ratio of 1: 0.78, and prepared as an intensifier.

Example  1: Functional environment friendly Particleboard  For manufacturing Superiority  Manufacture of binders

A melamine resin was added to water, and the flame retardant of Preparation Example 1-1 was added, followed by the addition of ammonium sulfate as a flame retardant aid. Thereafter, the antifungal agent of Preparative Example 2-1, the antifungal agent of Preparative Example 3-1, the strength enhancer of Preparation Example 4-1, paraffin wax as a moisture-proofing agent, acrylic acid coupling agent as phosphate, copper sulfate as a preservative and alkyl succinate as a penetrating agent are shown in the following table 3, and the mixture was stirred at a stirring speed of 1,200 rpm for 20 minutes to prepare a stirring product.

Next, the agitated product was aged in a dark room at 22 to 23 ° C. for 8 hours to prepare a permeable binder.

Comparative Example  One

Melamine resin (containing 0.1% by weight of residual formaldehyde, manufactured by Sun Chemical Company) was prepared as a binder for the production of functional eco-friendly particle board.

Example  2 to 3 and Comparative Example  2 to 3

A flame retardant was prepared in the same manner as in Example 1 except that the flame retarder of Preparation Example 1-1 was used instead of the flame retarder of Preparation Example 1-1 in Preparation Examples 1-2 to 1-3 and Comparative Preparation Examples 1-1 to 1-2 Of Examples 1 to 3 and Comparative Examples 1 to 2 were prepared.

Example  4 to 5 and Comparative Example  4 to 7

Examples 4 to 5 and Comparative Examples 4 to 7 were carried out as shown in Table 5 below, in the same manner as in Example 1, except that a permeable binder was prepared, and a flux-proof binder was prepared by varying the amount of the flame retardant or flame- .

Category (% by weight) Example 1 Example 2 Example 3 Comparative Example 2 Comparative Example 3 water 10.830 10.830 10.830 10.830 10.830 Flame retardant Preparation Example 1-1 23.364 - - - - Preparation Example 1-2 - 23.364 - - - Preparation Example 1-3 - - 23.364 - - Comparative Preparation Example 1-1 - - - 23.364 - Comparative Preparation Example 1-2 - - - - 23.364 Flame retardant aid Ammonium sulfate 1.011 1.011 1.011 1.011 1.011 The Preparation Example 2-1 0.722 0.722 0.722 0.722 0.722 Preparation Example 2-2 - - - - - Preparation Example 2-3 - - - - - Comparative Preparation Example 2-1 - - - - - Comparative Preparation Example 2-2 - - - - - Preparation for Comparison Example 2-3 - - - - - Antimicrobial agent Preparation Example 3-1 2.120 2.120 2.120 2.120 2.120 Strength reinforcement Preparation Example 4-1 0.722 0.722 0.722 0.722 0.722 Desiccant Paraffin wax 0.800 0.800 0.800 0.800 0.800 Coupling agent Acrylic phosphate coupling agent 0.870 0.870 0.870 0.870 0.870 antiseptic Copper sulfate 1.011 1.011 1.011 1.011 1.011 Penetration agent Alkyl succinate 0.910 0.910 0.910 0.910 0.910 Adhesive resin Melamine resin The remaining balance (sum 100% by weight)

Category (% by weight) Example 4 Example 5 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 water 10.830 10.830 10.830 10.830 10.830 10.830 Flame retardant Preparation Example 1-1 21.580 24.475 18.822 27.050 23.364 23.364 Flame retardant aid Ammonium sulfate 1.011 1.011 1.011 1.011 0.38 2.510 The Preparation Example 2-1 0.722 0.722 0.722 0.722 0.722 0.722 Antimicrobial agent Preparation Example 3-1 2.120 2.120 2.120 2.120 2.120 2.120 Strength reinforcement Preparation Example 4-1 0.722 0.722 0.722 0.722 0.722 0.722 Desiccant Paraffin wax 0.800 0.800 0.800 0.800 0.800 0.800 Coupling agent Acrylic phosphate coupling agent 0.870 0.870 0.870 0.870 0.870 0.870 antiseptic Copper sulfate 1.011 1.011 1.011 1.011 1.011 1.011 Penetration agent Alkyl succinate 0.910 0.910 0.910 0.910 0.910 0.910 Adhesive resin Melamine resin The remaining balance (sum 100% by weight)

Example  6 to 7 and Comparative Example  8-10

A flame retardant was prepared in the same manner as in Example 1 except that, in place of the flame retarder of Preparation Example 1-1, flame retardants were used as flame retardants in Preparation Examples 2-2 to 2-3 and Comparative Preparation Examples 2-1 to 2-5 as shown in Tables 6 and 7, Examples 2-3 and Comparative Examples 8-10 were respectively prepared by using a flame retardant of 2-3.

Category (% by weight) Example 6 Example 7 Comparative Example 8 Comparative Example 9 Comparative Example 10 water 10.830 10.830 10.830 10.830 10.830 Flame retardant Preparation Example 1-1 23.364 23.364 23.364 23.364 23.364 Flame retardant aid Ammonium sulfate 1.011 1.011 1.011 1.011 1.011 The Preparation Example 2-1 - - - - - Preparation Example 2-2 0.722 - - - - Preparation Example 2-3 - 0.722 - - - Comparative Preparation Example 2-1 - - 0.722 - - Comparative Preparation Example 2-2 - - - 0.722 - Preparation for Comparison Example 2-3 - - - - 0.722 Antimicrobial agent Preparation Example 3-1 2.120 2.120 2.120 2.120 2.120 Strength reinforcement Preparation Example 4-1 0.722 0.722 0.722 0.722 0.722 Desiccant Paraffin wax 0.800 0.800 0.800 0.800 0.800 Coupling agent Acrylic phosphate coupling agent 0.870 0.870 0.870 0.870 0.870 antiseptic Copper sulfate 1.011 1.011 1.011 1.011 1.011 Penetration agent Alkyl succinate 0.910 0.910 0.910 0.910 0.910 Adhesive resin Melamine resin The remaining balance (sum 100% by weight)

Category (% by weight) Example 8 Example 9 Comparative Example 11 Comparative Example 12 water 10.830 10.830 10.830 10.830 Flame retardant Preparation Example 1-1 23.364 23.364 23.364 23.364 Flame retardant aid Ammonium sulfate 1.011 1.011 1.011 1.011 The Preparation Example 2-1 0.500 1.500 0.011 5.050 Antimicrobial agent Preparation Example 3-1 2.120 2.120 2.120 2.120 Strength reinforcement Preparation Example 4-1 0.722 0.722 0.722 0.722 Desiccant Paraffin wax 0.800 0.800 0.800 0.800 Coupling agent Acrylic phosphate coupling agent 0.870 0.870 0.870 0.870 antiseptic Copper sulfate 1.011 1.011 1.011 1.011 Penetration agent Alkyl succinate 0.910 0.910 0.910 0.910 Adhesive resin Melamine resin The remaining balance (sum 100% by weight)

Example  10-11 and Comparative Example  13-16

Examples 10 to 11 and Comparative Examples 13 to 16 were each prepared in the same manner as in Example 1, except that the inhibiting binders were produced by varying the amount of the reinforcing agent and the penetrating agent as shown in Table 8 below. Respectively.

Comparative Example 15 was produced in the same composition and composition ratio as in Example 1, except that only pyrophyllite was used without using an aerogel as an intensity reinforcing agent.

Category (% by weight) Example 10 Example 11 Comparative Example 13 Comparative Example 14 Comparative Example 15 Comparative Example 16 water 10.830 10.830 10.830 10.830 10.830 10.830 Flame retardant Preparation Example 1-1 23.364 23.364 23.364 23.364 23.364 23.364 Flame retardant aid Ammonium sulfate 1.011 1.011 1.011 1.011 1.011 1.011 The Preparation Example 2-1 0.722 0.722 0.722 0.722 0.722 0.722 Antimicrobial agent Preparation Example 3-1 2.120 2.120 2.120 2.120 2.120 2.120 Strength reinforcement Preparation Example 4-1 0.353 1,000 0.127 1.400 0.722 0.722 Desiccant Paraffin wax 0.800 0.800 0.800 0.800 0.800 0.800 Coupling agent Acrylic phosphate coupling agent 0.870 0.870 0.870 0.870 0.870 0.870 antiseptic Copper sulfate 1.011 1.011 1.011 1.011 1.011 1.011 Penetration agent Alkyl succinate 0.910 0.910 0.910 0.910 0.910 0.118 Adhesive resin Melamine resin The remaining balance (sum 100% by weight)

Manufacturing example  1: Fabrication of functional eco-friendly PB (Particle board)

Particle chips were put into an automatic mixing coater, and 40 parts by weight of the binder prepared in Example 1 was injected into 100 parts by weight of the particle chips, and the mixture was coated for 10 minutes to form a mixed penetration coating.

The coated coatings were placed in a hot plate press having a top plate temperature of 110 ° C and a lower plate temperature of 145 ° C and thermocompression at 50 kgf / cm ² for 5 minutes. Next, the thermocompression product was put into a dryer and dried at room temperature (22 to 25 ° C) for 3 days to produce functional environmentally friendly PB.

The manufacturing facilities used for manufacturing the PB are shown in FIGS. 1 to 5. Fig. 1 shows a pulverizer of the material for PB of the present invention, Fig. 2 shows a dryer, Fig. 3 shows a drying state in a dryer, Fig. 4 shows a cutter of PB, Fig.

Comparative Manufacturing Example  One

PB was prepared in the same manner as in Preparation Example 1 except that the binder of Comparative Example 1 (manufactured by Sun Synth. Co., Ltd.) was used instead of Example 1 as a binder.

Manufacturing example  2 to 9 and Comparative Manufacturing Example  2 to 14

PB was produced in the same manner as in Preparation Example 1 except that each of the binders of Examples 2 to 9 or Comparative Preparations 2 to 14 was used in place of the binder of Example 1 to prepare PB, 9 and Comparative Production Examples 2 to 14, respectively (see Table 9).

division bookbinder Production Example 1 Example 1 Production Example 2 Example 2 Production Example 3 Example 3 Production Example 4 Example 4 Production Example 5 Example 5 Production Example 6 Example 6 Production Example 7 Example 7 Production Example 8 Example 8 Production Example 9 Example 9 Production Example 10 Example 10 Production Example 11 Example 11 Comparative Preparation Example 1 Comparative Example 1 Comparative Production Example 2 Comparative Example 2 Comparative Production Example 3 Comparative Example 3 Comparative Production Example 4 Comparative Example 4 Comparative Preparation Example 5 Comparative Example 5 Comparative Preparation Example 6 Comparative Example 6 Comparative Preparation Example 7 Comparative Example 7 Comparative Preparation Example 8 Comparative Example 8 Comparative Preparation Example 9 Comparative Example 9 Comparative Preparation Example 10 Comparative Example 10 Comparative Production Example 11 Comparative Example 11 Comparative Preparation Example 12 Comparative Example 12 Comparative Preparation Example 13 Comparative Example 13 Comparative Preparation Example 14 Comparative Example 14 Comparative Preparation Example 15 Comparative Example 15 Comparative Production Example 16 Comparative Example 16

Experimental Example  1: Antimicrobial activity measurement

The anti-microbial properties of the PBs prepared in the above Preparation Examples and Comparative Production Examples were measured and submitted to the Korean Institute of Construction & Living Environment Test. The antimicrobial activity was measured by KCL-FiR-1003 in accordance with the criteria of Comparative Preparation Example 1 and Preparation Example 1 The measurement results are shown in Fig. 2 and Fig. 3, respectively.

In Comparative Production Example 1, E. coli, Staphylococcus aureus, and pneumococci were all 99.9% (FIG. 2). Production Example 1 of the functional eco-friendly PB of the present invention also contained 99.9% of E. coli, 99.9% of Staphylococcus aureus and 99.9% The results of the same antibacterial measurement (FIG. 3) were almost the same as those of Comparative Preparation Example 1.

The results of the antimicrobial activity measurement on Production Examples 2 to 3, Production Examples 6 to 9, Comparative Production Examples 2 to 3, and Comparative Production Examples 8 to 12 are shown in Table 10 below.

division Bacterial reduction rate (%) E. coli Staphylococcus aureus Pneumococcus Production Example 1 99.9 99.9 99.9 Production Example 2 99.8 99.9 99.9 Production Example 3 99.9 99.8 99.9 Production Example 6 99.9 99.8 99.9 Production Example 7 99.9 99.9 99.8 Production Example 8 99.9 99.8 99.9 Production Example 9 99.9 99.9 99.8 Comparative Preparation Example 1 99.9 99.9 99.9 Comparative Production Example 2 99.9 99.9 99.9 Comparative Production Example 3 99.8 99.9 99.8 Comparative Preparation Example 8 99.9 99.9 99.8 Comparative Preparation Example 9 99.9 99.9 99.9 Comparative Preparation Example 10 99.9 99.9 99.9 Comparative Production Example 11 99.9 99.9 99.9 Comparative Preparation Example 12 99.9 99.9 99.9

It was confirmed that PB of the preparation examples and the comparative preparation examples had excellent antibacterial properties (see Table 10 above).

However, it was difficult to work in the production of PB of Comparative Production Example 1, and the pain, such as eyes, nose, and throat, was felt. In general, the aqueous solution of formaldehyde is commercially available as a disinfectant, a bactericide, and an antiseptic agent. The melamine resin used as a binder in Comparative Production Example 1 has a very high concentration of formaldehyde of 0.1% (1,000 ppm) . It is reported that residual formaldehyde in melamine resin is highly toxic to the human body, and symptoms of illness occur when it is exposed. When the residual formaldehyde concentration is less than 0.1 ppm, irritation occurs in eyes, nose and throat, It is said that it has a fatal effect such as respiratory disorder. Regarding this, the standards for environmentally friendly materials are set based on the amount of formaldehyde emission as follows, and the regulations are regulated by the law.

(super) seo Less than 0.3 mg / l, the highest grade grade with the lowest amount of formaldehyde. E0 0.5mg / l or less, medium and advanced materials E1 1.5mg / l or less, indoor furniture use basic grade E2 Less than 5mg / l, Indoor furniture not available

Experimental Example  2: Mold resistance and resistance experiment

The fungi resistance and resistance of the PB prepared in the above Preparation Examples and Comparative Production Examples were measured and submitted to Korea Institute of Construction & Living Environment Research Institute. The mold resistance was measured according to ASTM G21-15 and the fungus resistance according to ASTM D6329-98 (2015) The results of measurement of the fungus resistance of Comparative Preparation Example 1 and Production Example 1 are shown in FIGS. 4 and 5, respectively, and the results of the fungus resistance measurement are shown in FIGS. 6 and 7, respectively.

The mold resistance of Comparative Production Example 1 was excellent at 0 grade (Fig. 4) and good at mold resistance of 1.0 or less (Fig. 6). In addition, the PB of Production Example 1 also showed excellent results with a mold resistance of 0 grade (FIG. 5) and a mold resistance of 1.0 or less (FIG. 7). At this time, the reference value of the fungus resistance grade is 0 to 4 grade.

Comparative Production Example 1 showed excellent mold resistance and resistance even without a separate antimicrobial agent because of the high concentration of residual formaldehyde in the binder used in PB manufacture of Comparative Preparation Example 1 as in the antibacterial activity test of Experimental Example 1 .

The results of the antimicrobial activity measurement on Production Examples 2 to 3, Production Examples 6 to 9, Comparative Production Examples 2 to 3, and Comparative Production Examples 8 to 12 are shown in Table 12 below.

division Mold resistance
(4 weeks later) Mold resistance
(log value) Mold spores
(CFU / plate) Production Example 1 0 ratings 1.0 <10 Production Example 2 0 ratings 1.0 <10 Production Example 3 0 ratings 1.0 <10 Production Example 6 0 ratings 1.0 <10 Production Example 7 0 ratings 1.0 <10 Production Example 8 0 ratings 1.0 <10 Production Example 9 0 ratings 1.0 <10 Comparative Preparation Example 1 0 ratings 1.0 <10 Comparative Production Example 2 0 ratings 1.0 <10 Comparative Production Example 3 0 ratings 1.0 <10 Comparative Preparation Example 8 0 ratings 1.0 <10 Comparative Preparation Example 9 0 ratings 1.0 <10 Comparative Preparation Example 10 0 ratings 1.0 <10 Comparative Production Example 11 0 ratings 1.0 <10 Comparative Preparation Example 12 0 ratings 1.0 <10

Experimental Example  3: Flame retardancy measurement

The flame retardancy of the PB prepared in the Production Examples and Comparative Production Examples was measured according to the test standard of the National Security No. 2016-138, and the results of the measurements were submitted to the Korea Institute of Construction & Environment Test Respectively.

The measurement results for Production Examples 1 to 7 and Comparative Production Examples 1 to 10 are shown in Table 13 below. The carbonization length, carbonization area, residual salt time and decay time in Table 13 below are the average values measured three times for each sample.

division Carbonization length
(cm) Carbonized area
(cm ² ) Brine Time
(second) Burst time
(second) Production Example 1 6.0 22.3 0 0 Production Example 2 6.9 24.4 One 3 Production Example 3 5.7 21.1 0 0 Production Example 4 7.1 26.9 2 4 Production Example 5 5.5 20.2 0 0 Production Example 6 6.2 22.7 One 0 Production Example 7 6.3 22.6 0 0 Production Example 8 6.4 22.7 One 0 Production Example 9 5.8 21.5 0 0 Comparative Preparation Example 1 19.7 55.8 13 22 Comparative Production Example 2 12.8 38.2 3 8 Comparative Production Example 3 5.6 20.9 0 0 Comparative Production Example 4 15.3 42.3 10 17 Comparative Preparation Example 5 5.5 20.4 0 0 Comparative Preparation Example 6 9.6 32.1 3 6 Comparative Preparation Example 7 5.9 22.5 0 0 Comparative Preparation Example 8 6.3 22.9 0 0 Comparative Preparation Example 9 6.7 23.5 0 One Comparative Preparation Example 10 7.1 24.0 One One Comparative Production Example 11 6.4 22.8 One One Comparative Preparation Example 12 5.8 21.4 0 0 [Criteria for passing flammability]
* Carbonization length: within 20 cm / * Carbonization area: 50 cm ² Within
* Bleaching time: Within 10 seconds / * Bleed time: Within 30 seconds

As a result of the measurement of the results shown in Table 13, when the volume ratio of ammonium polyphosphate contained in the flame retardant component was decreased, the flame retardancy tended to decrease slightly. When the ammonium polyphosphate volume ratio was increased, the flame retardancy was slightly increased Respectively.

On the contrary, Comparative Production Example 1 in which PB is a conventional binder has a problem in that the length of carbonization and the time of residual flame can not satisfy the standard value.

In Comparative Preparation Example 2, which was produced from a binder in which ammonium polyphosphate was used in an amount of less than 1.5 parts by volume based on 1 part by volume of the silane-coated polyphosphoric acid ammonium salt as a flame retardant, the flame retardancy tended to be significantly lowered than in Production Example 2, In Comparative Preparation Example 3, in which ammonium was used in a ratio exceeding 3.0 volume ratio, there was almost no effect of increasing the flame retardancy as compared with Production Example 3.

Further, Comparative Production Example 4 produced from a binder using less than 20% by weight of a flame retardant agent had a problem that the flame retardancy was drastically reduced as compared with Production Example 1 and Production Example 4, Comparative Production Example 5 produced by the binder exhibited no effect of increasing the flame retardancy as compared with Production Examples 1 and 5.

Further, Comparative Production Example 6 produced from a binder using less than 0.5% by weight of a flame-retarding auxiliary agent showed a problem that the flame retardancy was reduced as compared with Production Example 1, and that the flame- Comparative Production Example 7 showed no effect of increasing the flame retardancy as compared with Production Example 1.

In Comparative Production Examples 8 to 10, there was no significant difference in flame retardancy when compared with Production Examples 6 to 7. [

Further, when comparing Production Example 1, Production Examples 8 to 9 and Comparative Production Examples 11 to 12, it was judged that the flame retardancy was slightly increased by the use of the oxidizing agent, but when the amount of the oxidizing agent was examined, The incremental change is considered to be very fine.

Experimental Example  4: Non-Flaming of smoke density and Flaming measurement  through Oppression  Effect measurement

In order to confirm the smoothing effect on the PBs of the production examples and comparative production examples, experiments were performed to measure radiant heat and direct heat according to the smoke density of PB.

Radiation heat and flame heat test methods were tested in accordance with the Fire Bureau Notice No. 2017-1, and the results were shown in FIG. 9 and FIG. Here, FIGS. 9A to 9D are measurement results for non-flame, and FIGS. 10A to 10D are flame measurement results.

The measurement results of Production Examples 2 to 3, Production Examples 6 to 9, Comparative Production Examples 2 to 3, and Comparative Production Examples 8 to 10 are shown in Table 14 below.

division For radiant heat
Maximum smoke density For flame heat
Maximum smoke density Production Example 1 262 286 Production Example 2 268 292 Production Example 3 256 275 Production Example 6 275 302 Production Example 7 257 278 Production Example 8 288 316 Production Example 9 223 247 Comparative Production Example 2 295 339 Comparative Production Example 3 263 310 Comparative Preparation Example 8 337 376 Comparative Preparation Example 9 359 414 Comparative Preparation Example 10 277 304 Comparative Production Example 11 410 453 Comparative Preparation Example 12 219 240 [Maximum smoke density acceptance threshold]
* Maximum smoke density for radiant heat less than 400
* The maximum smoke density for flame heat is less than 400

According to the measurement results of Table 14, in the case of the manufacturing example, the smoke density for the radiant heat and the direct heat was lower than the reference value. Further, Comparative Production Examples 2 to 3 also did not show a large difference in smoke density when compared with Production Example 1 and the like.

On the contrary, the PB of Comparative Preparation Example 8 prepared from the binder using the oxidizing agent using zinc carbonate in an amount of less than 2.5 parts by weight of zinc carbonate in comparison with the boric acid had satisfactory acceptance criteria as compared with Production Example 1 and Production Example 6, And the smoke density was increased sharply.

PB of Comparative Preparation Example 9 produced from a binder using magnesium hydroxide in an amount of less than 0.5 weight ratio with respect to boric acid had a problem that the smoke density of radiant heat exceeded the reference value as well as the smoke density of radiant heat.

The PB of Comparative Production Example 10, which was produced from a binder using a boron-containing agent having a magnesium hydroxide content exceeding 2.5 parts by weight based on the boric acid, showed no enhancement of coercive effect as compared with Production Example 1 and Production Example 7.

Further, in Comparative Production Example 11 produced from the binder containing 0.011% by weight of the binder resin in a trace amount, it can be confirmed that there is a problem that the smoke density is drastically increased, Compared with Production Example 9, Comparative Production Example 12 using more than 5% by weight of the oxidizing agent did not significantly increase the coercive effect even though the oxidizing agent was used more than three times.

Experimental Example  5: Total volatile organic compounds ( TVOC ), Toluene (toluene), formaldehyde (formaldehyde) removal rate

The removal rates of TVOC, toluene and formaldehyde for the PBs of the production examples and comparative production examples were measured in accordance with the indoor air quality process test standard (Ministry of Environment notification No. 2017-11), and the results are shown in Table 15 below. The removal ratios in Table 15 were measured based on the TVOC, toluene and formaldehyde measurement values of PB of Comparative Production Example 1 based on the following equation (1).

[Equation 1]

Removal rate (%) = (measured value of Comparative Preparation Example 1-measured value of sample) / (measured value of Comparative Preparation Example 1)} 100 (%)

11A and 11B show test results of Comparative Production Example 1, and test results of Production Example 1 are shown in FIG.

For reference, the standard values of the office furniture and office chair, the student desk lamp, and the office partition of the Environmental Industrial Technology Institute are shown in Table 16 below.

division TVOC toluene Formaldehyde Measures
(mg / (m ² , h)) Removal rate
(%) Measures
(mg / (m ² , h)) Removal rate
(%) Measured value (mg / (m ² , h)) Removal rate
(%) Comparative Preparation Example 1 0.350 - 0.001 - 0.885 - Production Example 1 0.089 75.0 Non-detection 100 0.038 96.0 Production Example 2 0.094 73.2 Non-detection 100 0.522 94.1 Production Example 3 0.079 77.5 Non-detection 100 0.021 97.6 Production Example 6 0.095 72.8 0.0001 0.056 93.7 Production Example 7 0.077 78.1 Non-detection 100 0.028 96.8 Production Example 8 0.102 70.9 0.001 - 0.097 89.0 Production Example 9 0.081 76.9 Non-detection 100 0.030 96.6 Comparative Production Example 2 0.087 75.2 Non-detection 100 0.027 96.9 Comparative Production Example 3 0.088 74.9 0.0001 90 0.065 92.6 Comparative Production Example 4 0.136 61.2 0.0001 90 0.111 87.5 Comparative Preparation Example 5 0.072 79.5 Non-detection 100 0.027 96.9 Comparative Preparation Example 8 0.090 74.3 Non-detection 100 0.034 96.2 Comparative Preparation Example 9 0.085 75.8 Non-detection 100 0.040 95.5 Comparative Preparation Example 10 0.090 74.3 Non-detection 100 0.094 89.4 Comparative Production Example 11 0.152 56.6 0.0002 80 0.143 83.8 Comparative Preparation Example 12 0.080 77.1 Non-detection 100 0.031 96.5 Comparative Preparation Example 15 0.145 58.5 0.0005 50 0.254 71.3 Comparative Production Example 16 0.126 63.9 0.0002 80 0.181 79.6

Total volatile organic compounds (TVOC) 0.4 mg / (m ² , h) toluene 0.080 mg / (m ² , h) Formaldehyde 0.12 mg / (m ² , h)

As shown in Table 15, it was confirmed that both the preparation example and the comparative preparation example show a very excellent TVOC, toluene and formaldehyde removal effect as compared with the comparative preparation example 1.

Compared with Production Example 1, the result of Comparative Production Example 2 using a binder having a low ammonium polyphosphate ratio in the flame retardant of the binder showed a higher formaldehyde removal rate than that of Production Example 1, It is considered that the amount of formaldehyde dissipated from PB is decreased as the bonding force between the compositions in the PB is increased due to the coated ammonium polyphosphate. Compared with Production Example 1, Comparative Production Example 3, which was produced from a binder having a relatively high proportion of ammonium polyphosphate in the flame retardant of the binder, showed a somewhat reduced formaldehyde removal rate than Production Example 1. However, Comparative Production Examples 2 to 3 showed excellent overall TVOC, toluene and formaldehyde removal rates.

In Comparative Production Example 4 produced from a binder using less than 20% by weight of a flame retardant agent, TVOC removal rate and formaldehyde removal rate tended to decrease sharply as compared to Production Example 1.

Comparative Production Examples 8 to 9 showed similar removal rates as compared with Production Example 1, but in Comparative Production Example 10 in which the weight ratio of magnesium hydroxide in the oxidizing agent was rather high, the formaldehyde removal rate was drastically decreased Results. However, when compared with Comparative Production Example 1, excellent formaldehyde removal was exhibited.

Further, a comparison of Production Example 1, Production Examples 8 to 9 and Comparative Production Examples 11 to 12 shows that TVOC and formaldehyde removal rates are influenced by the content of the oxidizing agent in the binder used for PB production, As the content increased, the TVOC and formaldehyde removal rates tended to increase. However, when Production Example 9 and Comparative Production Example 12 are compared, it was confirmed that the TVOC and formaldehyde removal rates do not increase proportionally due to the high content of the oxidizing agent.

On the other hand, in Comparative Production Example 13 using a binder composed only of pyrophyllite as the strength reinforcing agent and Comparative Production Example 14 made of a binder using less than 0.2% by weight of the penetrating agent, the TVOC removal rate and the formaldehyde removal rate Showed a significant decrease.

Experimental Example  6: Measurement of plane tensile strength

The plane tensile strengths of the PBs of Production Example 1, Production Examples 10 to 11 and Comparative Production Examples 11 to 16 were measured using KSF 3104: 2016 in accordance with KSF 3104: 2016, Respectively. Table 17 shows the results of the measurement of the plane tensile strengths of PB prepared in Production Example 1, Production Example 5, Production Examples 10 to 11, Comparative Production Example 5 and Comparative Production Examples 13 to 16. [ The relative tensile strength reduction ratio is calculated based on the following equation (2).

[Equation 2]

Relative tensile strength reduction rate (%) = {(plane tensile strength of preparation example 1 - plane tensile strength of sample) / (plane tensile strength of preparation example 1)} 100 (%)

The plane tensile strength of Preparation Example 1 in Equation 2 is 1.1 MPa.

Here, the plane tensile strength test is a measurement of the characteristics when the particle board is subjected to stress, and a force is applied to the surface of the target by applying tensile force uniformly distributed on the surface of the target to resist the force perpendicular to the outer surface of the specimen Shall mean the vertical tensile test. In addition, the legal standard value of PB was 0.4 MPa or more, and Production Example 1 having a plane tensile strength of 1.1 MPa showed a result about 2.75 times higher than the legal standard value.

division Relative plane tensile strength reduction rate Production Example 1 100.00% Production Example 5 99.82% Production Example 8 100.73% Production Example 9 99.97% Production Example 10 98.57% Production Example 11 101.12% Comparative Preparation Example 5 97.80% Comparative Production Example 11 100.88% Comparative Preparation Example 12 96.64% Comparative Preparation Example 13 93.20% Comparative Preparation Example 14 101.40% Comparative Preparation Example 15 102.20% Comparative Production Example 16 95.72%

In the measurement results of Table 16, there was no difference in the flame retardancy between Comparative Preparation Example 5 prepared from a binder using more than 25% by weight of the flame retardant agent and Production Example 1 and Production Example 5 (using 24.475% by weight of the flame retardant agent) (See Table 12), but the plane tensile strength sharply decreased by about 2.0%.

In Comparative Production Example 11 produced from a binder having an intensifying strength of less than 0.30 wt%, the plane tensile strength was drastically decreased as compared with Production Example 1 and Production Example 10, and the binder having a strength reinforcing agent exceeding 1.20 wt% In Comparative Production Example 14, the effect of increasing the plane tensile strength was insufficient as compared with Production Example 1 and Production Example 11.

In Comparative Production Example 15 using a binder composed only of pyrophyllite as the strength reinforcing agent, the airgel was mixed with pyrophyllite as an intensity reinforcing agent, although it increased somewhat as compared with Production Example 1, Which is advantageous in terms of overall physical properties.

In addition, it was confirmed that the Comparative Production Example 16 produced from the binder using the penetrant at less than 0.2% by weight had a problem that the plane tensile strength was reduced by 4% or more as compared with Production Example 1. [

Further, when comparing Production Example 1, Production Examples 8 to 9 and Comparative Production Example 11, the content of the retarder in the binder did not greatly affect the plane tensile strength of PB. However, in the case of Comparative Production Example 12, which was a PB made of a binder using an overproducing agent in a binder, the plane tensile strength tended to be greatly reduced as compared with Production Example 9. [

Through the above Examples and Experimental Examples, it can be seen that the permeable binder composition of the present invention and the permeable binder produced therefrom have excellent antibacterial properties, antifungal properties, bactericidal properties, deodorizing property, tensile strength, rupture strength and bending strength, It is confirmed that it is suitable for manufacturing on a particle board having excellent resistance and flame retardancy as well as preventing and / or minimizing divergence.

It will be understood by those skilled in the art that the foregoing description of the present invention has been presented for illustrative purposes, and that those skilled in the art will readily understand that various changes may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments and examples are illustrative in all respects and not restrictive.

Claims (9)

delete 0.1 to 2.5% by weight of a suppressing agent comprising a crystal prepared by processing boric acid, zinc carbonate and magnesium hydroxide at a weight ratio of 1: 3.0 to 4.5: 1.4 to 2.0, 10 to 15% by weight of water and a residual amount of a melamine resin Wherein the binder resin composition comprises at least one binder resin.
3. The method according to claim 2,
A step 1 for producing a saturated aqueous boric acid solution;
A step of heating a saturated aqueous solution of boric acid, dissolving zinc carbonate and magnesium hydroxide in a saturated aqueous solution of boric acid and then boiling; And
After cooling and filtration, the filtrate is dried to obtain white crystals;
The present invention relates to a binder for a functional eco-friendly particle board, and a method for producing the same.
delete [3] The composition of claim 2, further comprising at least one selected from a flame retardant, a flame retardant, an intensifier, a desiccant, an antibacterial agent, a coupling agent, an antiseptic agent and a penetrant.
6. The method of claim 5, wherein the flame retardant is used in an amount of 0.1 to 5.0 wt%, the flame retardant is used in an amount of 20 to 25 wt%, the flame retardant aid is used in an amount of 0.5 to 2.0 wt%, the strength enhancer is used in an amount of 0.3 to 1.2 wt% , 0.3 to 1.2% by weight of a coupling agent, 0.05 to 1.2% by weight of a preservative, 0.2 to 1.0% by weight of a penetrating agent, 10 to 15% by weight of water and a residual amount of a melamine resin. .
Preparing a composition of any one of claims 2 to 3 and 5 to 6;
Stirring the mixture at a stirring speed of 800 to 1,500 rpm for 10 to 30 minutes to prepare an agitated product; And
And aging the agitated product in a dark room at 20 to 35 DEG C for 6 to 12 hours. The method of claim 1, wherein the agglomerated product is aged in a dark room at 20 to 35 DEG C for 6 to 12 hours.
Wherein the binder contains a fermented product of a mixture obtained by mixing a composition of any one of claims 2 to 3 and 5 to 6. 7. A binder for a functional eco-friendly particle board,
A particle board characterized by comprising a thermocompression product of a coating obtained by penetrating a particle chip with a transparent binder according to claim 8.

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