WO2014193151A1 - Resin composition and method for preparing same - Google Patents

Resin composition and method for preparing same Download PDF

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Publication number
WO2014193151A1
WO2014193151A1 PCT/KR2014/004735 KR2014004735W WO2014193151A1 WO 2014193151 A1 WO2014193151 A1 WO 2014193151A1 KR 2014004735 W KR2014004735 W KR 2014004735W WO 2014193151 A1 WO2014193151 A1 WO 2014193151A1
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Prior art keywords
absorbent
adsorbent
resin composition
resin
base resin
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PCT/KR2014/004735
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French (fr)
Korean (ko)
Inventor
박종길
Original Assignee
Park Jong Gil
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Publication of WO2014193151A1 publication Critical patent/WO2014193151A1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/043—Carbonates or bicarbonates, e.g. limestone, dolomite, aragonite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
    • B01J20/226—Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/262—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/264—Synthetic macromolecular compounds derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/281—Sorbents specially adapted for preparative, analytical or investigative chromatography
    • B01J20/282—Porous sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3007—Moulding, shaping or extruding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/46—Materials comprising a mixture of inorganic and organic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
    • B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes

Definitions

  • the present invention relates to a resin composition and a method for manufacturing the same, and to a resin composition used in the casting field such as spray, brush, hand lay-up, rotary coating, casting, injection and the like and a method for producing the same.
  • steel In general, steel has excellent rigidity according to its inherent characteristics, but there is a problem that rust occurs when exposed to moisture, and plastic is vulnerable to chemicals, erosion, ultraviolet rays, or discoloration. Has surface defects.
  • solvent-based or water-soluble paints are conventionally used, for example, oil-based, alkyd-based, chloride-based, vinyl-based, acrylic-based, epoxy-based, urethane-based, silicate-based, silicone-based, fluorine-based, ester-based, amino-based, and the like.
  • various resins have been used to paint paints or coatings on the surface of manufacturing materials to compensate for the shortcomings of steel or plastic materials, and at the same time to give color to improve appearance.
  • paints and coating agents are used using various materials in addition to oil, alkyd, chlorinated rubber, vinyl, acrylic, epoxy, urethane, silicate, silicon, fluorine, ester, amino, etc. R & D production sales.
  • the urethane / urea material uses isocyanates and polyols / polyamines
  • the carbon dioxide is generated by chemical reaction with isocyanate groups and water (H 2 O) during coating and coating processes to create bubbles and pores in the coating film.
  • H 2 O isocyanate groups and water
  • epoxy resins acrylic resins, alkyd resins, ester resins and the like also cause various problems such as poor adhesion of the coating film and deterioration of coating performance due to the influence of moisture when working in a high humidity environment.
  • various methods such as absorbents, adsorbents, and very hydrophobic resins have been proposed, but they have not been obtained satisfactorily until now, and their characteristics are not universal, so they are applied to a very partial part, which is also expensive. It has a limit to use.
  • the absorbers or adsorbents are mainly used, which have a large number of nanopores and have a pore size of about 2 (angstrom) to 10 Minerals with a certain size are mainly used, and typical examples are Molecular Sieves, Zeolite, Silica and Activated Carbon.
  • the absorber or the adsorbent since the absorber or the adsorbent is heated to remove moisture or other gas in the nanopores, the absorber or the adsorbent which has been cooled and packaged is purchased and used, and thus air is introduced into the nanopores during the cooling process. It is introduced and even a small amount of moisture in the atmosphere is introduced.
  • the absorbent or adsorbent produced in this way has a problem in that the absorption and adsorption capacity of the nano-pores is reduced compared to the nano-cavities under reduced pressure due to the air inside the nano-pores. It was found that the absorption and adsorption capacity was remarkably improved.
  • the inside of the nanopores was kept under reduced pressure just before the absorbent or adsorbent was added to the resin. Since the opening of the pupil is blocked with a polymer resin larger in size than the nanopores, the inside of the nanopores can be maintained at a reduced pressure.
  • One of the specific methods to solve this problem is the step of heating the absorbent or adsorbent to remove moisture, air, etc. in the inside of the nano-pores and expanding the inside of the nano-cavity to decompress, and put into the resin in the heated state in the step.
  • This is a method of maintaining the absorbent, the adsorbent, and the interior of the nanopores under reduced pressure even when the resin is at room temperature or heated.
  • Another specific method is to use a vacuum pump or the like while the absorbent or adsorbent is heated at room temperature or heated.
  • Resin is a method of maintaining a reduced pressure even at room temperature or heated state.
  • the present invention is to solve the above problems, in the coating, coating or resin molding, it is possible to work in a high humidity environment by removing the water or gas mixed into the resin during coating or molding, coating coating film while increasing the adhesive force And to provide a resin composition capable of smoothing the surface of the molded article and its manufacturing method.
  • Resin composition according to the present invention for achieving the above object is a base resin; It is added to the base resin in an expanded state, the absorbent having a porous structure to remove the water or gas generated in the base resin; characterized in that it comprises a.
  • the absorbent is characterized in that it is expanded by heating to 50 °C to 1000 °C.
  • the absorbent is characterized in that it is expanded by creating a vacuum atmosphere.
  • the absorbent may be expanded to 50 ° C. to 1000 ° C. while forming a vacuum atmosphere.
  • the absorbent is characterized in that it comprises any one of zeolite, talc, silica, calcium carbonate, fly ash.
  • Method for producing a resin composition according to the present invention for achieving the above object comprises the steps of preparing a base resin; An expansion step of expanding the absorbent of the porous structure; And a mixing step of adding and mixing the absorbent in the expanded state in the expansion step to the base resin to remove water or gas generated in the base resin.
  • the absorbent is heated to 50 to 1000 °C to expand.
  • the expansion step it is characterized by expanding by forming a vacuum atmosphere in the absorbent.
  • the absorbent is heated to 50 ° C. to 1000 ° C. while expanding the absorbent while forming a vacuum atmosphere.
  • the absorbent is heated to a temperature higher than a predetermined temperature in the expansion step to remove moisture or gas contained therein.
  • the absorbent in which water or gas is removed by heating is added to the base resin. Therefore, it is possible to increase the volume ratio capable of absorbing the water or gas mixed in the base resin.
  • the resin composition according to the present invention since the inside of the absorbent having a porous structure is in a state in which the internal pressure of the absorbent is relatively lower than atmospheric pressure, the resin composition and water in the air react with each other. It can be easily absorbed carbon dioxide has the advantage of making the surface of the product or the surface of the product using the casting smooth.
  • 1 is a flow chart showing a method for producing a resin composition according to the present invention.
  • Figure 2 is a cross-sectional view showing an example of a heating unit applied to the manufacturing method of the resin composition according to the present invention.
  • FIG 3 is a cross-sectional view showing another embodiment of a heating unit applied to the method of manufacturing a resin composition according to the present invention.
  • the resin composition according to the present invention is a porous resin which is added to the base resin and the base resin and added to the base resin in an expanded state to remove gas generated by the reaction between the base resin and water in the air. Structure absorbers or adsorbents.
  • the resin composition may be used for painting, casting, and the like. Hereinafter, the resin composition for painting will be described as an example.
  • Base resin is commonly used in liquid polyurethane, epoxy, polyethylene (PE), polypropylene (PP), polyvinyl resin, unsaturated polyester resin, acrylonitrile-butadiene-styrene or paint It can be applied to a single material or a mixture of two or more different materials.
  • the base resin is a polyurethane resin, but is not limited thereto.
  • the base resin according to the present embodiment is a liquid phase, but not limited to this, it is a matter of course that a powdery resin or powder coating can be applied.
  • the base resin according to the present invention is used to include 20 to 50% by weight of a rigid polyurethane resin and 50 to 80% by weight of a flexible polyurethane resin
  • the rigid polyurethane resin is a trimmer or triol using toluene diisocyanate Ductors, resins obtained by trimer or biuret reactions of hexamethylene diisocyanate, trimers of isophorone diisocyanates or adductors of triols, trimers of diphenylmethane diisocyanates or adduct resins of triols, and the like can be used. .
  • Flexible polyurethane resins include polyether polyols and polyester polyols with neopentyl glycol, methyl propanediol, hexanediol, ethylene glycol, propylene glycol, butylene glycol, butylene glycol, trimethylolpropane, trimethylolethane and castor oil. It can be obtained by reacting one alcohol selected from the group consisting of one isocyanate selected from the group consisting of toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, diphenyl methane diisocyanate and the like.
  • the alcohols used for forming the rigid polyurethane resin are polyols and neopentyl glycols, methylpropanediol, hexanediol, ethylene glycol, propylene glycol, selected from the group consisting of polyether polyols, polyester polyols and mixtures thereof It may include at least one selected from the group consisting of butylene glycol, butylene glycol, trimethylolpropane, trimethylol ethane and castor oil.
  • the resin composition according to the present invention is made by adding and mixing an absorbent or adsorbent in a heated and expanded state by a heating unit 200 to be described later to the prepared base resin.
  • the resin composition according to the present invention is added to the base resin by heating the absorbent or the adsorbent at a temperature such that deformation of the absorbent or the adsorbent does not occur through the heating unit 200 to be described later.
  • the absorbent or the adsorbent is preferably added to the base resin while maintaining the temperature of 50 ° C to 1000 ° C, preferably 200 ° C to 600 ° C, and more preferably 200 ° C to 400 ° C.
  • Absorbents or adsorbents added to the base resin are porous structures, that is, those having many pores formed therein.
  • zeolites, silicas, and molecurassis of crystalline aluminum silicates having a cage or channel structure are used.
  • Molecular Sieves, Wollastonite, Talc, Pumice, Vermiculite, Vermiculite, Active Carbon, Calcium Carbonate (CaCO 3 ), Charcoal, Fly Ash Porous glass having micropores of 1 ⁇ 100 ⁇ , organic nanomolecules and metal ions may be combined to apply MOF (Metal-Organic Framework), which is a nanoporous hybrid compound.
  • MOF Metal-Organic Framework
  • the zeolite preferably has a size of 300 to 3000 mesh.
  • the base resin may include various additive materials such as a curing agent.
  • the resin composition added to the base resin while the absorbent or the adsorbent is heated is carbon dioxide (CO 2 ) by the reaction of the urethane group (-NHCOO-) of polyurethane and water (H 2 O) in the air during painting.
  • the absorbent or adsorbent added to the base resin in a heated state absorbs carbon dioxide, thereby smoothing and smoothing the surface of the coating object.
  • the resin composition according to the present invention may not only heat the absorbent ⁇ adsorbent through the heating unit 200, but may also expand the absorbent and the adsorbent by forming a vacuum atmosphere in the absorbent and the adsorbent, or alternatively, the absorbent or the adsorbent. It can also be expanded by forming a vacuum atmosphere while heating.
  • the method for producing a resin composition according to the present invention includes a preparation step, an expansion step, and a mixing step.
  • the preparation step may include applying the above-mentioned hard polyurethane resin, the flexible polyurethane resin, a curing agent, and various additive materials in the process of preparing the base resin 101.
  • the base resin 101 is prepared by mixing the above-mentioned materials in the storage tank 100 to prepare the base resin.
  • the expansion step expands the absorbent or adsorbent through the heating unit 200 before adding the absorbent or adsorbent to the base resin 101 to remove water or gas present in the microporous structure.
  • the heating device for heating the absorbent or the adsorbent may be a conventional apparatus, but the following will be described as an example of the heating unit 200 shown in FIG.
  • the heating unit 200 for heating the absorbent or the adsorbent is formed to be inclined to transfer the hopper 10 into which the heating object is introduced and the heating object introduced through the hopper 10 to discharge the heated heating object to the outside.
  • the main body 30 provided with the part 20 and the heating part 50 which heats the main body 30 are provided.
  • the main body 30 is formed in a tubular shape in which a hollow part is provided to allow a heating object to pass therethrough, and a hopper 10 is installed on the upper part to inject a heating object into the hollow part, and a hopper 10 is installed.
  • the lower side of the side facing the position is provided with a discharge portion 20 for discharging the heating object passing through the hollow portion to the outside.
  • the main body 30 is formed to have a predetermined length so that the heating object can be heated to a sufficient temperature by the heating unit while moving along the main body.
  • the heating object introduced into the main body 30 moves toward the discharge unit 20 while sliding by its own weight along the inclined main body.
  • a vibration device may be further provided to apply discontinuous vibration to the main body 30 so that the heating object can be easily moved inside the main body 30.
  • the heating unit 50 provides heat to the main body 30 so as to heat the heating object transferred along the hollow part, and is installed to surround the outer circumferential surface of the main body 30, and heat is discharged to the outside of the heating unit 50.
  • a heat insulating part 55 surrounding the heating part 50 is further provided to block the product from becoming.
  • the heating unit 50 may apply a heating wire such as an alloy of iron and chromium, an alloy of nickel and chromium, or alternatively, a planar heating element may be installed to surround the outer circumferential surface of the main body 30 in a band form.
  • a heating wire such as an alloy of iron and chromium, an alloy of nickel and chromium, or alternatively, a planar heating element may be installed to surround the outer circumferential surface of the main body 30 in a band form.
  • the heating unit is not limited to the above-described examples, it is also possible to apply a high frequency heating means for heating using a high frequency current.
  • the high frequency heating means may include a coil installed to surround the outside of the main body, and a high frequency oscillator for generating and applying a high frequency current signal to the coil.
  • the absorbent or adsorbent introduced into the main body is heated above a predetermined temperature while gradually moving along the main body, and moisture or gas contained therein is removed during the heating.
  • the volume ratio of absorbing the water or gas can be increased compared to the absorbent or the adsorbent in the normal temperature state.
  • the absorbent or adsorbent in the heated state expands its own volume, and the number of gas molecules inside the absorbent or adsorbent is increased by moving the air and gas molecules remaining in the innumerable pores to the outside of the absorbent or adsorbent by thermal motion. At room temperature, the number of gas molecules is smaller than that of the gas molecules, resulting in a lean state.
  • the mixing step is a step of adding and mixing the absorbent or adsorbent in the expanded state by heating in the expansion step to the base resin 101, and is heated through the heating unit 200 to expand the pores therein (moisture is removed). And the absorbent or adsorbent of the vacuum) is discharged through the discharge portion 20 is injected directly into the storage tank (100).
  • the absorbent or adsorbent After adding and mixing an absorbent or adsorbent in a heated and expanded state to the base resin, the absorbent or adsorbent is cooled to room temperature with the base resin in a state in which the number of gas molecules is less than room temperature by thermal motion. The space is in a state where the pressure is relatively lower than room temperature.
  • the absorbent or adsorbent in the heated and expanded state becomes lower than the internal pressure in the process of cooling to room temperature, and as described above, the resin composition is contained in itself when the resin composition is applied to the surface of the coating object.
  • Carbon dioxide gas produced by reacting with moisture or moisture in the atmosphere can be easily absorbed.
  • the absorbent or adsorbent added to the resin maintains a reduced pressure so that the microporous structure adsorbs moisture or gas generated in the resin during coating, painting, and molding.
  • the expansion step is described as only the expansion of the absorbent or the adsorbent by heating.
  • the absorbent or the adsorbent may be expanded by maintaining a reduced pressure, that is, by exposure to a vacuum atmosphere.
  • it can also be expanded to form a vacuum atmosphere with heating. That is, in some cases, the inside of the micropores may be reduced in pressure by using a vacuum pump or the like at room temperature without heating the absorbent or the absorbent, and then the absorbent or the absorbent may be introduced into the resin.
  • Figure 3 shows another example of a heating unit.
  • the heating unit 210 for heating and expanding the absorbent or the adsorbent gas discharge unit for discharging the gas or gas generated while the moisture contained in the absorbent or the adsorbent during the heating of the absorbent or adsorbent evaporates 60 is provided.
  • the gas discharge unit 60 is installed in the main body 30 so that the steam generated while the moisture contained in the absorbent or the adsorbent by the heating unit 50 evaporates to the outside of the main body 30 from the hollow body ( 30 and the suction pipe 61 extending outward through the heat insulating part 55, the transfer pipe 62 connected to the end of the suction pipe 61, the suction pump 63 connected to the transfer pipe 62, And a shutoff valve 64 for opening and closing the flow path of the transfer pipe 62.
  • the gas discharge part 60 may further include a filter member so as to prevent the fine absorbent or the adsorbent from being discharged through the suction pipe 61.
  • the heating unit 210 is provided with an opening and closing portion in the hopper 10 to block the inflow of outside air into the hollow portion of the main body 30, although not shown in the drawing it is preferable to install a separate opening and closing portion on the discharge side. Do.
  • the opening and closing part is rotatably coupled to the upper end of the hopper 10 to seal the internal space of the main body 30.
  • the opening and closing unit opens and closes the passage of the hopper 10 in conjunction with the operation state of the gas discharge unit 60 to communicate with the outside of the hollow portion of the main body 30, or to be isolated from the outside air.
  • Discharge part 20 is preferably the end side is sealingly coupled to the storage tank 100 to prevent the outside air flows into the body (30).
  • the absorbent or adsorbent introduced into the hollow part is transferred to the discharge part 20 side along the hollow part.
  • the opening and closing part maintains the state of opening the passage of the hopper 10.
  • the upper portion of the hopper 10 is closed through the opening and closing part.
  • the air is sucked through the suction pump 63 to form a vacuum atmosphere.
  • the suction is stopped when the set pressure is reached, and the transfer pipe 62 is opened through the shutoff valve 64. To close.
  • the water contained in the absorbent or the adsorbent is vaporized at a temperature of 100 ° C. or lower, and the vaporized vapor is collected at the upper part of the hollow part.
  • the shutoff valve 64 of the gas discharge part 60 is opened, and the steam collected in the hollow part through the suction pump 63 is discharged to the outside of the main body 30.
  • the expansion step may be heated while supplying hot air into the main body 30.
  • the resin composition prepared through the preparation step, the expansion step, and the mixing step as described above is water or gas is removed in the expansion step, and since the pressure is relatively lower than atmospheric pressure inside the absorbent or the adsorbent, the resin composition according to the present invention is When performing the painting operation by using the resin composition and the moisture in the air is generated by reacting with each other or can easily absorb the moisture or gas contained in the resin composition itself.
  • one or more resin compositions such as polyurethane, epoxy, polyethylene (PE), polypropylene (PP), polyvinyl resin, unsaturated polyester resin, acrylonitrile-butadiene-styrene, or the like Zeolite, Silica, Molecular Sieves, Wollastonite, Talc, Pumice, Vermiculite in vermiculite ), Active carbon, calcium carbonate (CaCO 3 ), fly ash, porous glass with micropores of 1 ⁇ 100 ⁇ , organic nanoparticles and metal ions
  • an absorbent or adsorbent such as MOF (Metal-Organic Framework)
  • molecules having a size smaller than the pores formed in the absorbent or adsorbent are absorbed into the pores of the absorbent or adsorbent and have a smaller size than the pores. Since the molecules close the pores around the absorbent or adsorbent, the absorbent or adsorbent is encapsulated by the resin composition.
  • MOF Metal-Organic Framework
  • the structure in which the molecules of the resin composition are infiltrated into the pores of the absorbent or the adsorbent enables the resin composition to enhance structural strength when cured, and the absorbent or adsorbent encapsulated by the molecules of the resin composition Since the pores in the interior can maintain a state in which negative pressure is continuously generated, it is possible to easily adsorb gas or moisture generated during operations such as painting and coating.

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Abstract

The present invention relates to a resin composition comprising: a base resin; and a porous sorbent added, to the base resin, in an expanded state for removing moisture or gas generated from the base resin. In addition, the present invention relates to a method for preparing a resin composition comprising: a preparation step for preparing a base resin; an expansion step for expanding a porous sorbent; and a mixing step for adding or mixing to the base resin the sorbent, which has been expanded in the expansion step, so as to remove moisture or gas generated from the base resin.

Description

수지조성물 및 이의 제조방법Resin composition and preparation method thereof
본 발명은 수지조성물 및 이의 제조방법에 관한 것으로서, 스프레이, 붓, 핸드레이업, 회전등 도장, 주조, 사출 등의 캐스팅 분야에서 사용되는 수지조성물 및 이의 제조방법에 관한 것이다.The present invention relates to a resin composition and a method for manufacturing the same, and to a resin composition used in the casting field such as spray, brush, hand lay-up, rotary coating, casting, injection and the like and a method for producing the same.
일반적으로 철재는 고유 특성에 따라 강성은 뛰어나지만 수분에 노출시 녹이 발생하는 문제가 있고, 플라스틱은 약품, 침식, 자외선, 또는 변색 등에 취약하여 외관에서 흐름, 흠, 색상의 제한, 산화 등으로부터 오는 표면 결함을 갖는다.In general, steel has excellent rigidity according to its inherent characteristics, but there is a problem that rust occurs when exposed to moisture, and plastic is vulnerable to chemicals, erosion, ultraviolet rays, or discoloration. Has surface defects.
이런 문제점들을 해결하기 위하여 종래부터 용제형이나 수용성 도료를 예를 들면, 오일계, 알키드계, 염화고무계, 비닐계, 아크릴계, 에폭시계, 우레탄계, 실리케이트계, 실리콘계, 불소계, 에스테르계, 아미노계 등 이들 외에도 다양한 수지들로 도료나 코팅제를 제조 소재 표면에 도장하여 철재 또는 플라스틱 소재가 갖는 결점을 보완하고 동시에 색상을 부여하여 외관을 향상시켜왔다.In order to solve these problems, solvent-based or water-soluble paints are conventionally used, for example, oil-based, alkyd-based, chloride-based, vinyl-based, acrylic-based, epoxy-based, urethane-based, silicate-based, silicone-based, fluorine-based, ester-based, amino-based, and the like. In addition to these, various resins have been used to paint paints or coatings on the surface of manufacturing materials to compensate for the shortcomings of steel or plastic materials, and at the same time to give color to improve appearance.
그러나, 산업사회가 다양한 방면으로 발전하고 소득수준이 높아짐에 따라 소비자의 제품에 대한 요구수준도 높아지고 그와 더불어 점점더 다양한 기능을 가지는 도료, 코팅 소재를 필요로 하고 있는 추세이다.However, as the industrial society develops in various ways and the income level increases, the demand level of the consumer's product increases, and in addition, there is a need for paints and coating materials having various functions.
이러한 다양한 요구를 수용하기 위하여 오일계, 알키드계, 염화고무계, 비닐계, 아크릴계, 에폭시계, 우레탄계, 실리케이트계, 실리콘계, 불소계, 에스테르계, 아미노계등 이외에도 다양한 소재를 사용하여 각종 도료, 코팅제를 연구개발 생산 판매를 하고 있다.In order to accommodate such various needs, various paints and coating agents are used using various materials in addition to oil, alkyd, chlorinated rubber, vinyl, acrylic, epoxy, urethane, silicate, silicon, fluorine, ester, amino, etc. R & D production sales.
그러나, 거의 대부분의 사용 환경조건으로 제시하고 있는 공통점 중 하나로 높은 습도하에서는 도장작업을 금하고 있는데 이는 습기나 수분이 도료, 코팅 물성에 나쁜 영향(접착, 표면, 색상불량 등)을 가져오기 때문이다.However, one of the most common environmental conditions suggested is that painting is prohibited under high humidity, because moisture and moisture have an adverse effect on paint and coating properties (adhesion, surface, color defects, etc.).
이러한 제약조건은 모두 습기에 의한 영향으로 날씨가 흐리거나 우천시 또는 여름철 습도가 높은 경우 도장, 코팅작업에 제약받기 때문에 생산성이 떨어지고 무리한 작업을 하는 경우가 빈번하며 이로 인한 도막, 코팅막 불량이 발생하게 되어 이로 인한 물적 손실은 물론 추가적 비용의 발생 초래하며 여러 가지 부가적인 문제가 발생하기 때문에 이러한 제약조건에서도 작업 가능한 도료, 코팅제의 요구가 증대되고 있다.All of these constraints are affected by moisture, so when the weather is cloudy, or when the weather is high or the summer humidity is high, it is restricted to painting and coating work, which leads to low productivity and excessive work, resulting in poor coating and coating films. As a result, the physical loss, as well as the additional cost, and a number of additional problems occur, increasing the demand for paints and coatings that can work even under these constraints.
특히 상기의 소재중에서 우레탄/우레아 소재는 이소시아네이트와 폴리올/폴리아민을 사용하기 때문에 코팅, 도장 과정에서 이소시아네이트 그룹과 물(H2O)과 화학반응으로 탄산가스를 발생시켜 코팅도막에 기포와 기공을 생성함으로 우레탄/우레아 소재의 우수한 물성에도 불구하고 사용에 제한을 받는다.In particular, since the urethane / urea material uses isocyanates and polyols / polyamines, the carbon dioxide is generated by chemical reaction with isocyanate groups and water (H 2 O) during coating and coating processes to create bubbles and pores in the coating film. Despite its excellent properties, urea is limited in use.
또한 에폭시수지, 아크릴수지, 알키드수지, 에스테르계수지 등도 습도가 높은 환경에서 작업시 습기의 영향에 의하여 코팅도막의 접착불량, 도막 성능의 저하 등 다양한 문제를 초래하기 때문에 이러한 고습 작업환경에서 발생되는 문제점을 극복하기 위하여 흡수제나 흡착제나 극소수성 수지 등 다양한 방법이 제시되고 있지만 아직까지 만족스러운 결과를 얻지 못하고 있고, 그 특성 또한 범용적이지 않아 극히 부분적인 부분에 적용되고 있으며, 이 또한 가격이 고가로 사용에 한계성을 가지고 있다.In addition, epoxy resins, acrylic resins, alkyd resins, ester resins and the like also cause various problems such as poor adhesion of the coating film and deterioration of coating performance due to the influence of moisture when working in a high humidity environment. In order to overcome the problems, various methods such as absorbents, adsorbents, and very hydrophobic resins have been proposed, but they have not been obtained satisfactorily until now, and their characteristics are not universal, so they are applied to a very partial part, which is also expensive. It has a limit to use.
이러한 문제점들을 해결하기 위하여 흡수제나 흡착제를 사용하여 해결하고자 많은 분야에서 적용하고 있는데 주로 사용되고 있는 흡수제나 흡착제로는 다수의 나노동공(nanopore)을 가지고 있고 기공의 크기가 약 2(angstrom) 부터 10의 일정크기를 가지고 있는 광물들을 주로 사용하고 있는데 대표적으로 몰레큐라시브(Molecular Sieves), 제올라이트(Zeolite), 실리카(silica), 활성탄 등을 사용하고 있다In order to solve these problems, it is applied in many fields to solve by using an absorbent or an adsorbent. The absorbers or adsorbents are mainly used, which have a large number of nanopores and have a pore size of about 2 (angstrom) to 10 Minerals with a certain size are mainly used, and typical examples are Molecular Sieves, Zeolite, Silica and Activated Carbon.
그러나, 기존의 사용방법은 흡수제나 흡착제를 가열하여 나노동공 내에 있는 수분이나 기타 가스등을 제거한 후 냉각하여 포장되는 과정을 거친 흡수제나 흡착제를 구입하여 사용하기 때문에 냉각되는 과정에서 나노동공 내부로 공기가 유입되고 미량이나마 대기중의 수분도 같이 유입되게 된다.However, in the conventional method, since the absorber or the adsorbent is heated to remove moisture or other gas in the nanopores, the absorber or the adsorbent which has been cooled and packaged is purchased and used, and thus air is introduced into the nanopores during the cooling process. It is introduced and even a small amount of moisture in the atmosphere is introduced.
이렇게 제조 판매되는 흡수제나 흡착제는 나노동공 내부에 있는 공기등으로 인하여 감압상태에 있는 나노동공에 비하여 흡수, 흡착능력이 떨어진다는 문제가 있으며, 이러한 문제점을 해결하는 방안으로서 나노동공 내부를 감압상태로 유지시키면 흡수, 흡착 능력이 현저히 개선된다는 것을 발견하였고 이를 해결하기 위한 방안으로 수지에 흡수제나 흡착제를 투입하기 직전에 나노동공 내부를 감압상태로 유지된 상태로 투입하므로 수지에 투입된 흡수제나 흡착제의 나노동공의 입구를 나노동공보다 상대적으로 크기가 더 큰 고분자 수지가 봉쇄하게 되므로 나노동공 내부를 감압상태로 유지 할 수 있다.The absorbent or adsorbent produced in this way has a problem in that the absorption and adsorption capacity of the nano-pores is reduced compared to the nano-cavities under reduced pressure due to the air inside the nano-pores. It was found that the absorption and adsorption capacity was remarkably improved. As a solution to this problem, the inside of the nanopores was kept under reduced pressure just before the absorbent or adsorbent was added to the resin. Since the opening of the pupil is blocked with a polymer resin larger in size than the nanopores, the inside of the nanopores can be maintained at a reduced pressure.
이를 해결하기 위한 구체적인 방법의 한가지로 흡수제나 흡착제를 가열하여 나노동공 내부에 있는 습기, 공기등을 제거하는 단계와 나노동공 내부를 팽창시켜 감압시키는 단계와, 상기 단계에서 가열된 상태로 수지에 투입하여 수지 내부에 있는 흡수제나 흡착제, 나노동공의 내부를 수지가 상온 또는 가열된 상태에서도 감압상태로 유지시키는 방법이며, 또다른 구체적인 방법으로는 흡수제나 흡착제를 상온 또는 가열한 상태에서 진공펌프등을 사용하여 나노동공 내부에 있는 습기, 공기 등을 제거하는 단계와, 나노동공 내부를 감압시키는 단계와, 상기 단계에서 감압된 상태로 수지에 투입하여 수지 내부에 있는 흡수제나 흡착제, 나노동공의 내부를 수지가 상온 또는 가열된 상태에서도 감압상태로 유지시키는 방법이다.One of the specific methods to solve this problem is the step of heating the absorbent or adsorbent to remove moisture, air, etc. in the inside of the nano-pores and expanding the inside of the nano-cavity to decompress, and put into the resin in the heated state in the step This is a method of maintaining the absorbent, the adsorbent, and the interior of the nanopores under reduced pressure even when the resin is at room temperature or heated. Another specific method is to use a vacuum pump or the like while the absorbent or adsorbent is heated at room temperature or heated. Removing moisture, air, etc., inside the nanopores, and depressurizing the inside of the nanopores, and injecting the absorbent or adsorbent in the resin into the resin in a reduced pressure state. Resin is a method of maintaining a reduced pressure even at room temperature or heated state.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로 도료, 코팅제나 수지성형에 있어서, 도포나 성형시 수지로 혼입된 수분 또는 가스를 제거함으로써 고습한 환경에서도 작업이 가능하고, 접착력을 증가시키면서 코팅도막 및 성형품의 표면을 매끄럽게 할 수 있는 수지조성물 및 이의 제조방법을 제공하는 데 그 목적이 있다.The present invention is to solve the above problems, in the coating, coating or resin molding, it is possible to work in a high humidity environment by removing the water or gas mixed into the resin during coating or molding, coating coating film while increasing the adhesive force And to provide a resin composition capable of smoothing the surface of the molded article and its manufacturing method.
상기와 같은 목적을 달성하기 위한 본 발명에 따른 수지조성물은 베이스수지와; 팽창된 상태로 상기 베이스수지에 첨가되어 상기 베이스수지에서 발생하는 수분 또는 가스를 제거하는 다공질 구조의 흡수제;를 포함하는 것을 특징으로 한다.Resin composition according to the present invention for achieving the above object is a base resin; It is added to the base resin in an expanded state, the absorbent having a porous structure to remove the water or gas generated in the base resin; characterized in that it comprises a.
상기 흡수제는 50℃ 내지 1000℃로 가열하여 팽창시킨 것을 특징으로 한다The absorbent is characterized in that it is expanded by heating to 50 ℃ to 1000 ℃.
상기 흡수제는 진공 분위기를 조성하여 팽창시킨 것을 특징으로 한다.The absorbent is characterized in that it is expanded by creating a vacuum atmosphere.
상기 흡수제는 진공 분위기를 조성하면서, 50℃ 내지 1000℃로 가열하여 팽창시킨 것을 특징으로 한다.The absorbent may be expanded to 50 ° C. to 1000 ° C. while forming a vacuum atmosphere.
상기 흡수제는 제올라이트, 탈크, 실리카, 탄산칼슘, 플라이 애시 중 어느 하나를 포함하는 것을 특징으로 한다.The absorbent is characterized in that it comprises any one of zeolite, talc, silica, calcium carbonate, fly ash.
상기와 같은 목적을 달성하기 위한 본 발명에 따른 수지조성물의 제조방법은 베이스수지를 준비하는 준비단계와; 다공질 구조의 흡수제를 팽창시키는 팽창단계와; 상기 베이스수지에서 발생하는 수분 또는 가스를 제거하기 위하여 상기 팽창단계에서 팽창된 상태의 상기 흡수제를 상기 베이스수지에 첨가 및 혼합하는 혼합단계;를 포함하는 것을 특징으로 한다.Method for producing a resin composition according to the present invention for achieving the above object comprises the steps of preparing a base resin; An expansion step of expanding the absorbent of the porous structure; And a mixing step of adding and mixing the absorbent in the expanded state in the expansion step to the base resin to remove water or gas generated in the base resin.
상기 팽창단계에서는 상기 흡수제를 50℃ 내지 1000℃로 가열하여 팽창시키는 것을 특징으로 한다.In the expansion step, the absorbent is heated to 50 to 1000 ℃ to expand.
상기 팽창단계에서는 상기 흡수제에 진공분위기를 조성하여 팽창시키는 것을 특징으로 한다.In the expansion step, it is characterized by expanding by forming a vacuum atmosphere in the absorbent.
상기 팽창단계에서는 상기 흡수제에 진공분위기를 조성하면서 상기 흡수제를 50℃ 내지 1000℃로 가열하여 팽창시키는 것을 특징으로 한다.In the expansion step, the absorbent is heated to 50 ° C. to 1000 ° C. while expanding the absorbent while forming a vacuum atmosphere.
본 발명에 따른 수지조성물은 흡수제가 팽창단계에서 소정의 온도 이상으로 가열되면서 내부에 포함되어 있던 수분 또는 가스가 제거되며, 이와 같이 가열에 의해 수분 또는 가스가 제거된 상태의 흡수제가 베이스수지에 첨가되므로 베이스수지에 혼입된 수분 또는 가스를 흡수할 수 있는 용적률을 늘릴 수 있다.In the resin composition according to the present invention, the absorbent is heated to a temperature higher than a predetermined temperature in the expansion step to remove moisture or gas contained therein. Thus, the absorbent in which water or gas is removed by heating is added to the base resin. Therefore, it is possible to increase the volume ratio capable of absorbing the water or gas mixed in the base resin.
본 발명에 따른 수지조성물은 팽창단계를 통해 다공질 구조를 갖는 흡수제의 내부가 대기압보다 상대적으로 낮은 압력이 걸린 상태에 있게 되므로 도장 작업을 수행할 때, 수지조성물과 공기중의 수분이 서로 반응하여 생성된 이산화탄소를 용이하게 흡수할 수 있어 도장대상의 표면 또는 캐스팅을 이용한 제품의 표면을 매끄럽게 만들 수 있는 장점을 가진다.In the resin composition according to the present invention, since the inside of the absorbent having a porous structure is in a state in which the internal pressure of the absorbent is relatively lower than atmospheric pressure, the resin composition and water in the air react with each other. It can be easily absorbed carbon dioxide has the advantage of making the surface of the product or the surface of the product using the casting smooth.
도 1은 본 발명에 따른 수지조성물의 제조방법을 나타낸 플로우차트.1 is a flow chart showing a method for producing a resin composition according to the present invention.
도 2는 본 발명에 따른 수지조성물의 제조방법에 적용되는 가열유닛의 일 예를 나타낸 단면도.Figure 2 is a cross-sectional view showing an example of a heating unit applied to the manufacturing method of the resin composition according to the present invention.
도 3은 본 발명에 따른 수지조성물의 제조방법에 적용되는 가열유닛의 다른 실시 예를 나타낸 단면도.3 is a cross-sectional view showing another embodiment of a heating unit applied to the method of manufacturing a resin composition according to the present invention.
이하, 첨부된 도면을 참조하면서 본 발명에 따른 수지조성물 및 수지조성물의 제조방법에 대하여 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the resin composition and the method for producing the resin composition according to the present invention.
본 발명에 따른 수지조성물은 베이스수지와, 베이스수지에 첨가되어 베이스수지 내부에 포함되어 있거나 베이스수지와 공기 중의 수분의 반응에 의해 생성된 가스를 제거하기 위하여 팽창된 상태로 베이스수지에 첨가되는 다공질 구조의 흡수제 또는 흡착제를 포함한다. 상기 수지조성물은 도장용, 캐스팅용 등의 용도로 이용될 수 있으며, 이하에서는 도장용 수지조성물을 예로 들어 설명한다.The resin composition according to the present invention is a porous resin which is added to the base resin and the base resin and added to the base resin in an expanded state to remove gas generated by the reaction between the base resin and water in the air. Structure absorbers or adsorbents. The resin composition may be used for painting, casting, and the like. Hereinafter, the resin composition for painting will be described as an example.
베이스수지는 액상의 폴리우레탄(polyurethane), 에폭시(epoxy), 폴리에틸렌(PE), 폴리프로필렌(PP), 폴리비닐수지, 불포화폴리에스터수지, 아크릴로니트릴-부타디엔-스티렌 또는 도장 분야에서 통상적으로 사용되는 것을 적용하며, 단일 소재 또는 서로 다른 두 가지 이상의 소재를 혼합한 것을 적용할 수 있다. 본 실시 예에서 상기 베이스수지는 폴리우레탄수지를 적용하였으나 이에 한정하지 않는다.Base resin is commonly used in liquid polyurethane, epoxy, polyethylene (PE), polypropylene (PP), polyvinyl resin, unsaturated polyester resin, acrylonitrile-butadiene-styrene or paint It can be applied to a single material or a mixture of two or more different materials. In the present embodiment, the base resin is a polyurethane resin, but is not limited thereto.
또한, 본 실시 예에 따른 베이스수지는 액상의 것을 적용하지만, 이에 한정하지 않고 분말 상의 수지 또는 분체도료를 적용할 수 있음은 물론이다.In addition, the base resin according to the present embodiment is a liquid phase, but not limited to this, it is a matter of course that a powdery resin or powder coating can be applied.
본 발명에 따른 베이스수지는 경성 폴리우레탄 수지 20 ~ 50중량% 및 연성 폴리우레탄 수지 50 ~ 80중량%를 포함하는 것을 사용하며, 경성 폴리우레탄 수지는 톨루엔 디이소시아네이트를 이용한 트라이머 또는 트리올의 어덕터, 헥사메틸렌 디이소시아네이트의 트라이머 또는 뷰렛 반응으로 얻은 수지, 이소포론 디이소시아네이트의 트라이머 또는 트리올의 어덕터, 디페닐 메탄 디이소시아네이트의 트라이머 또는 트리올의 어덕터 수지 등을 이용할 수 있다. 연성 폴리우레탄 수지는 폴리에테르 폴리올 및 폴리에스테르 폴리올과 네오펜틸 글리콜, 메틸프로판디올, 헥산디올, 에틸렌글리콜, 프로필렌글리콜, 부틸렌글리콜, 부틸렌글리콜, 트리메틸올프로판, 트리메틸올에탄 및 케스터오일 등으로 이루어진 군에서 선택된 하나의 알콜류와 톨루엔 디이소시아네이트, 헥사메틸렌 디이소시아네트, 이소포론 디이소시아네이트, 디페닐 메탄 디이소시아네이트 등으로 이루어진 군에서 선택된 하나의 이소시아네이트류를 반응시켜 얻을 수 있다.The base resin according to the present invention is used to include 20 to 50% by weight of a rigid polyurethane resin and 50 to 80% by weight of a flexible polyurethane resin, the rigid polyurethane resin is a trimmer or triol using toluene diisocyanate Ductors, resins obtained by trimer or biuret reactions of hexamethylene diisocyanate, trimers of isophorone diisocyanates or adductors of triols, trimers of diphenylmethane diisocyanates or adduct resins of triols, and the like can be used. . Flexible polyurethane resins include polyether polyols and polyester polyols with neopentyl glycol, methyl propanediol, hexanediol, ethylene glycol, propylene glycol, butylene glycol, butylene glycol, trimethylolpropane, trimethylolethane and castor oil. It can be obtained by reacting one alcohol selected from the group consisting of one isocyanate selected from the group consisting of toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, diphenyl methane diisocyanate and the like.
바람직하게는, 경성 폴리우레탄 수지의 형성에 사용되는 알콜류는 폴리에테르 폴리올, 폴리에스테르 폴리올 및 이들의 혼합물로 이루어진 군에서 선택된 폴리올 및 네오펜틸 글리콜, 메틸프로판디올, 헥산디올, 에틸렌글리콜, 프로필렌글리콜, 부틸렌글리콜, 부틸렌글리콜, 트리메틸올프로판, 트리메틸올에탄 및 케스터 오일로 이루어진 군에서 선택된 적어도 어느 하나를 포함할 수 있다.Preferably, the alcohols used for forming the rigid polyurethane resin are polyols and neopentyl glycols, methylpropanediol, hexanediol, ethylene glycol, propylene glycol, selected from the group consisting of polyether polyols, polyester polyols and mixtures thereof It may include at least one selected from the group consisting of butylene glycol, butylene glycol, trimethylolpropane, trimethylol ethane and castor oil.
본 발명에 따른 수지조성물은 후술하는 가열유닛(200)에 의해 가열 및 팽창된 상태의 흡수제 또는 흡착제를 준비된 베이스수지에 첨가 및 혼합함으로써 만들어진다.The resin composition according to the present invention is made by adding and mixing an absorbent or adsorbent in a heated and expanded state by a heating unit 200 to be described later to the prepared base resin.
본 발명에 따른 수지조성물은 후술하는 가열유닛(200)을 통해 흡수제 또는 흡착제가 형태의 변형이 발생하지 않을 정도의 온도로 흡수제 또는 흡착제를 가열하여 베이스수지에 첨가한다. 일 예로, 흡수제 또는 흡착제는 50℃ 내지 1000℃, 바람직하게는 200℃ ~ 600℃, 더욱 바람직하게는 200℃ ~ 400℃의 온도를 유지한 상태로 베이스수지에 첨가하는 것이 바람직하다.The resin composition according to the present invention is added to the base resin by heating the absorbent or the adsorbent at a temperature such that deformation of the absorbent or the adsorbent does not occur through the heating unit 200 to be described later. For example, the absorbent or the adsorbent is preferably added to the base resin while maintaining the temperature of 50 ° C to 1000 ° C, preferably 200 ° C to 600 ° C, and more preferably 200 ° C to 400 ° C.
흡수제 또는 흡착제를 50℃이하로 가열하면 수분이나 가스가 흡수제 또는 흡착제 내부에 체류하게 되고, 흡수제 또는 흡착제를 1000℃이상으로 가열하면 흡수제 또는 흡착제의 형상 및 물성이 변하는 문제가 있다.When the absorbent or adsorbent is heated to 50 ° C. or less, water or gas stays inside the absorbent or adsorbent, and when the absorbent or adsorbent is heated to 1000 ° C. or higher, there is a problem in that the shape and physical properties of the absorbent or adsorbent are changed.
베이스수지에 첨가되는 흡수제 또는 흡착제는 다공성 구조 즉, 내부에 기공이 많이 형성된 것을 적용하며, 일 예로 Cage나 Channel 구조를 갖는 결정성 규산알루미늄의 제올라이트(zeolite), 실리카(silica), 몰레큐라시브(Molecular Sieves), 울라스토나이트(Wollastonite), 탈크(talc), 부석(pumice), 질석(버미쿨라이트; vermiculite), 활성탄(active carbon), 탄산칼슘(CaCO3), 숯, 플라이 애시(fly ash), 1~100Å의 미세기공을 갖는 다공성 유리(porous glass), 유기분자와 금속 이온을 결합시켜 나노다공성 하이브리드 화합물인 MOF(Metal-Organic Framework)를 적용할 수 있다. 일 예로, 상기 흡수제 또는 흡착제로서 제올라이트를 적용하는 경우, 상기 제올라이트는 크기가 300 ~ 3000mesh 인 것을 적용하는 것이 바람직하다. 상기 베이스수지에는 경화제 등의 다양한 첨가 물질을 포함할 수도 있다.Absorbents or adsorbents added to the base resin are porous structures, that is, those having many pores formed therein. For example, zeolites, silicas, and molecurassis of crystalline aluminum silicates having a cage or channel structure are used. Molecular Sieves, Wollastonite, Talc, Pumice, Vermiculite, Vermiculite, Active Carbon, Calcium Carbonate (CaCO 3 ), Charcoal, Fly Ash ), Porous glass having micropores of 1 ~ 100Å, organic nanomolecules and metal ions may be combined to apply MOF (Metal-Organic Framework), which is a nanoporous hybrid compound. For example, when the zeolite is applied as the absorbent or the adsorbent, the zeolite preferably has a size of 300 to 3000 mesh. The base resin may include various additive materials such as a curing agent.
상기와 같이 흡수제 또는 흡착제를 가열한 상태로 베이스수지에 첨가한 수지조성물은 도장 작업중에 폴리우레탄의 우레탄기(-NHCOO-)와 공기 중의 수분(H2O)의 반응에 의해 이산화탄소(CO2)가 생성되는데, 이때 가열된 상태로 베이스수지에 첨가된 흡수제 또는 흡착제가 이산화탄소를 흡수함으로써 도장대상물의 표면을 매끄럽고 부드럽게 할 수 있는 것이다. As described above, the resin composition added to the base resin while the absorbent or the adsorbent is heated is carbon dioxide (CO 2 ) by the reaction of the urethane group (-NHCOO-) of polyurethane and water (H 2 O) in the air during painting. In this case, the absorbent or adsorbent added to the base resin in a heated state absorbs carbon dioxide, thereby smoothing and smoothing the surface of the coating object.
상기 가열된 상태로 베이스수지에 첨가된 흡수제 또는 흡착제가 이산화탄소를 흡수하는 과정은 가열유닛(200)을 통해 흡수제 또는 흡착제를 가열하도록 된 팽창단계에서 상세하게 설명하기로 한다.The process of absorbing carbon dioxide by the absorbent or adsorbent added to the base resin in the heated state will be described in detail in the expansion step of heating the absorbent or the adsorbent through the heating unit 200.
한편, 본 발명에 따른 수지조성물은 가열유닛(200)을 통해 흡수제 똔 흡착제를 가열하지 않고, 단순히 흡수제 및 흡착제에 진공 분위기를 조성하여 흡수제 및 흡착제를 팽창시킬 수도 있을 뿐만 아니라, 이와 다르게 흡수제 또는 흡착제를 가열하면서 진공분위기를 조성하여 팽창시킬 수도 있다.On the other hand, the resin composition according to the present invention may not only heat the absorbent 제 adsorbent through the heating unit 200, but may also expand the absorbent and the adsorbent by forming a vacuum atmosphere in the absorbent and the adsorbent, or alternatively, the absorbent or the adsorbent. It can also be expanded by forming a vacuum atmosphere while heating.
이하에서는 본 발명에 따른 수지조성물을 제조하는 방법에 대하여 설명한다.Hereinafter will be described a method for producing a resin composition according to the present invention.
본 발명에 따른 수지조성물의 제조방법은 크게 준비단계와, 팽창단계와, 혼합단계를 포함한다.The method for producing a resin composition according to the present invention includes a preparation step, an expansion step, and a mixing step.
준비단계는 베이스수지(101)를 준비하는 과정으로 상기에서 언급한 경성 폴리우레탄 수지와, 연성 폴리우레탄 수지 그리고 경화제 및 다양한 첨가 물질을 포함하는 것을 적용할 수 있다. The preparation step may include applying the above-mentioned hard polyurethane resin, the flexible polyurethane resin, a curing agent, and various additive materials in the process of preparing the base resin 101.
상기 준비단계에서는 베이스수지를 준비하기 위하여 상기에서 언급한 물질들을 저장탱크(100)에서 혼합하여 베이스수지(101)를 준비한다.In the preparation step, the base resin 101 is prepared by mixing the above-mentioned materials in the storage tank 100 to prepare the base resin.
팽창단계는 베이스수지(101)에 흡수제 또는 흡착제를 첨가하기 이전에 가열유닛(200)을 통해 흡수제 또는 흡착제를 팽창시켜 미세다공질 구조내에 존재하는 수분 또는 기체를 제거한다. The expansion step expands the absorbent or adsorbent through the heating unit 200 before adding the absorbent or adsorbent to the base resin 101 to remove water or gas present in the microporous structure.
흡수제 또는 흡착제를 가열하기 위한 가열장치는 통상의 장치를 적용할 수도 있으나, 이하에서는 도 2에 도시된 가열유닛(200)을 예로 설명한다.The heating device for heating the absorbent or the adsorbent may be a conventional apparatus, but the following will be described as an example of the heating unit 200 shown in FIG.
흡수제 또는 흡착제를 가열하기 위한 가열유닛(200)은 가열대상체가 투입되는 호퍼(10)와 내부에 호퍼(10)를 통해 투입된 가열대상체가 이송되게 경사지게 형성되며 가열된 가열대상체를 외부로 배출하는 배출부(20)가 구비된 본체(30)와, 본체(30)를 가열하는 가열부(50)를 구비한다.The heating unit 200 for heating the absorbent or the adsorbent is formed to be inclined to transfer the hopper 10 into which the heating object is introduced and the heating object introduced through the hopper 10 to discharge the heated heating object to the outside. The main body 30 provided with the part 20 and the heating part 50 which heats the main body 30 are provided.
본체(30)는 가열대상체가 통과할 수 있게 내부에 중공부가 마련된 관 형상으로 형성되어 있고, 상부에는 중공부로 가열대상체를 투입할 수 있게 호퍼(10)가 설치되어 있으며, 호퍼(10)가 설치된 위치와 대향하는 일 측 하부에는 중공부를 통과하는 가열대상체를 외부로 배출하는 배출부(20)가 마련되어 있다.The main body 30 is formed in a tubular shape in which a hollow part is provided to allow a heating object to pass therethrough, and a hopper 10 is installed on the upper part to inject a heating object into the hollow part, and a hopper 10 is installed. The lower side of the side facing the position is provided with a discharge portion 20 for discharging the heating object passing through the hollow portion to the outside.
본체(30)는 가열대상체가 본체를 따라 이동하면서 가열부에 의해 충분한 온도로 가열될 수 있도록 일정 길이를 갖도록 형성된다.The main body 30 is formed to have a predetermined length so that the heating object can be heated to a sufficient temperature by the heating unit while moving along the main body.
본체(30) 내부로 투입되는 가열대상체는 경사진 본체를 따라 자중에 의해 미끄러지면서 배출부(20) 측으로 이동한다. 도시되어 있지 않지만, 가열대상체가 본체(30) 내부에서 용이하게 이동할 수 있도록 본체(30)에 불연속적인 진동을 가하는 진동장치가 더 구비될 수 있다.The heating object introduced into the main body 30 moves toward the discharge unit 20 while sliding by its own weight along the inclined main body. Although not shown, a vibration device may be further provided to apply discontinuous vibration to the main body 30 so that the heating object can be easily moved inside the main body 30.
가열부(50)는 중공부를 따라 이송되는 가열대상체를 가열할 수 있게 본체(30)에 열을 제공하는 것으로, 본체(30)의 외주면을 둘러싸도록 설치되어 있고, 그 외측에는 외부로 열이 방출되는 것을 차단할 수 있게 가열부(50)를 감싸는 단열부(55)가 더 구비된다.The heating unit 50 provides heat to the main body 30 so as to heat the heating object transferred along the hollow part, and is installed to surround the outer circumferential surface of the main body 30, and heat is discharged to the outside of the heating unit 50. A heat insulating part 55 surrounding the heating part 50 is further provided to block the product from becoming.
상기 가열부(50)는 철과 크로뮴의 합금, 니켈과 크로뮴의 합금 등의 전열선을 적용할 수도 있고, 이와는 다르게 면상 발열체를 밴드 형태로 본체(30)의 외주면을 감싸도록 설치할 수도 있다. The heating unit 50 may apply a heating wire such as an alloy of iron and chromium, an alloy of nickel and chromium, or alternatively, a planar heating element may be installed to surround the outer circumferential surface of the main body 30 in a band form.
또한, 상기 가열부는 상술한 예로만 한정하지 않고, 고주파 전류를 이용하여 가열하는 고주파 가열수단을 적용할 수도 있다. 일 예로, 상기 고주파 가열수단은 본체의 외측을 감싸도록 설치된 코일과, 상기 코일에 고주파 전류 신호를 발생 및 인가하는 고주파 발진부를 포함하여 구성할 수 있다.In addition, the heating unit is not limited to the above-described examples, it is also possible to apply a high frequency heating means for heating using a high frequency current. For example, the high frequency heating means may include a coil installed to surround the outside of the main body, and a high frequency oscillator for generating and applying a high frequency current signal to the coil.
상기와 같은 가열유닛(200)을 통해 흡수제 또는 흡착제를 가열 및 팽창시키는 과정을 살펴보면 먼저, 가열부(50)를 구동하여 본체(30)를 소정 온도로 예열시킨 후 호퍼(10)를 통해 본체(30)의 중공부로 가열대상 흡수제 또는 흡착제를 투입한다. Looking at the process of heating and expanding the absorbent or the adsorbent through the heating unit 200 as described above, first, the preheating the main body 30 to a predetermined temperature by driving the heating unit 50 and then the main body through the hopper 10 ( The absorbent or adsorbent to be heated is introduced into the hollow portion of 30).
본체로 투입된 흡수제 또는 흡착제는 본체를 따라 서서히 이동하면서 소정 온도 이상으로 가열되며, 가열 도중 내부에 포함되어 있던 수분 또는 가스가 제거된다. 즉, 흡수제 또는 흡착제에 포함되어 있던 수분 또는 가스를 제거함으로써 상온 상태의 흡수제 또는 흡착제보다 수분 또는 가스를 흡수할 수 있는 용적률을 늘리는 것이다.The absorbent or adsorbent introduced into the main body is heated above a predetermined temperature while gradually moving along the main body, and moisture or gas contained therein is removed during the heating. In other words, by removing the water or gas contained in the absorbent or the adsorbent, the volume ratio of absorbing the water or gas can be increased compared to the absorbent or the adsorbent in the normal temperature state.
또한, 가열된 상태의 흡수제 또는 흡착제는 자체적인 부피가 팽창되고, 무수한 기공 내에 체류하고 있던 공기, 가스 분자들이 열 운동에 의해 흡수제 또는 흡착제 외부로 이동함으로써 흡수제 또는 흡착제 내부에 있는 가스 분자들의 수는 상온일 때의 가스 분자들의 수보다 적게 되어 가스 분자들이 희박한 상태가 된다.In addition, the absorbent or adsorbent in the heated state expands its own volume, and the number of gas molecules inside the absorbent or adsorbent is increased by moving the air and gas molecules remaining in the innumerable pores to the outside of the absorbent or adsorbent by thermal motion. At room temperature, the number of gas molecules is smaller than that of the gas molecules, resulting in a lean state.
혼합단계는 팽창단계에서 가열을 통해 팽창된 상태의 흡수제 또는 흡착제를 베이스수지(101)에 첨가 및 혼합시키는 단계로서, 가열유닛(200)을 통해 가열되어 내부의 기공이 팽창된 상태(수분이 제거되고 진공상태를 형성)의 흡수제 또는 흡착제가 배출부(20)를 통해 배출되면서 저장탱크(100)로 직접 투입된다.The mixing step is a step of adding and mixing the absorbent or adsorbent in the expanded state by heating in the expansion step to the base resin 101, and is heated through the heating unit 200 to expand the pores therein (moisture is removed). And the absorbent or adsorbent of the vacuum) is discharged through the discharge portion 20 is injected directly into the storage tank (100).
베이스수지에 가열 및 팽창된 상태의 흡수제 또는 흡착제를 첨가 및 혼합한 후에는 흡수제 또는 흡착제가 열 운동에 의해 가스 분자들의 수가 상온보다 적은 상태에서 베이스수지와 함께 상온으로 냉각되므로, 흡수제 또는 흡착제 내부의 공간은 상온보다 상대적으로 압력이 낮은 상태가 된다. After adding and mixing an absorbent or adsorbent in a heated and expanded state to the base resin, the absorbent or adsorbent is cooled to room temperature with the base resin in a state in which the number of gas molecules is less than room temperature by thermal motion. The space is in a state where the pressure is relatively lower than room temperature.
이와 같이 가열 및 팽창된 상태의 흡수제 또는 흡착제는 상온으로 냉각되는 과정에서 내부의 압력이 상온일 때보다 낮아지게 되며, 상술한 바와 같이 수지조성물을 도장대상의 표면에 도포할 때 자체에 포함되어 있는 수분 또는 대기중의 수분과 반응하여 생성되는 이산화탄소 가스를 용이하게 흡수할 수 있는 것이다.As such, the absorbent or adsorbent in the heated and expanded state becomes lower than the internal pressure in the process of cooling to room temperature, and as described above, the resin composition is contained in itself when the resin composition is applied to the surface of the coating object. Carbon dioxide gas produced by reacting with moisture or moisture in the atmosphere can be easily absorbed.
즉, 수지에 투입되는 흡수제 또는 흡착제는 미세다공질 구조가 감압상태를 유지하여 코팅, 도장, 성형시 수지에 발생하는 수분이나 발생가스 등을 흡착하기 때문에 코팅, 도장시 습기 및 수분으로부터 발생하는 문제를 해결할 수 있는 장점이 있다.That is, the absorbent or adsorbent added to the resin maintains a reduced pressure so that the microporous structure adsorbs moisture or gas generated in the resin during coating, painting, and molding. There is an advantage that can be solved.
본 실시 예에서 상기의 팽창단계는 흡수제 또는 흡착제를 가열하여 팽창시킨 것으로만 설명하였으나, 이와 다르게 팽창단계에서는 흡수제 또는 흡착제를 감압상태를 유지 즉, 진공분위기에 노출시켜 팽창시킬 수도 있으며, 흡수제 또는 흡착제를 가열과 함께 진공분위기를 조성하여 팽창시킬 수도 있음은 물론이다. 즉, 경우에 따라 흡수제 또는 흡착제를 가열하지 않고 상온에서 진공펌프 등을 이용하여 미세기공 내부를 감압시킨 후 흡수제 또는 흡착제를 수지에 투입할 수도 있다.In the present embodiment, the expansion step is described as only the expansion of the absorbent or the adsorbent by heating. However, in the expansion step, the absorbent or the adsorbent may be expanded by maintaining a reduced pressure, that is, by exposure to a vacuum atmosphere. Of course, it can also be expanded to form a vacuum atmosphere with heating. That is, in some cases, the inside of the micropores may be reduced in pressure by using a vacuum pump or the like at room temperature without heating the absorbent or the absorbent, and then the absorbent or the absorbent may be introduced into the resin.
한편, 도 3에는 가열유닛의 또 다른 예가 도시되어 있다. 도 3을 참조하면, 흡수제 또는 흡착제를 가열 및 팽창시키기 위한 가열유닛(210)에는 흡수제 또는 흡착제를 가열하는 도중에 흡수제 또는 흡착제에 포함되어 있던 수분이 증발하면서 발생하는 기체나 가스를 배출하는 가스배출부(60)가 구비되어 있다.On the other hand, Figure 3 shows another example of a heating unit. Referring to Figure 3, the heating unit 210 for heating and expanding the absorbent or the adsorbent gas discharge unit for discharging the gas or gas generated while the moisture contained in the absorbent or the adsorbent during the heating of the absorbent or adsorbent evaporates 60 is provided.
가스배출부(60)는 본체(30)에 설치되어 가열부(50)에 의해 흡수제 또는 흡착제에 포함된 수분이 증발하면서 발생하는 증기를 본체(30) 외부로 배출할 수 있도록 중공부로부터 본체(30) 및 단열부(55)를 관통하여 외측으로 연장되 흡입관(61)과, 흡입관(61)의 단부에 연결된 이송관(62)과, 이송관(62)에 연결된 흡입펌프(63)와, 이송관(62)의 유로를 개폐하는 차단밸브(64)를 포함한다.The gas discharge unit 60 is installed in the main body 30 so that the steam generated while the moisture contained in the absorbent or the adsorbent by the heating unit 50 evaporates to the outside of the main body 30 from the hollow body ( 30 and the suction pipe 61 extending outward through the heat insulating part 55, the transfer pipe 62 connected to the end of the suction pipe 61, the suction pump 63 connected to the transfer pipe 62, And a shutoff valve 64 for opening and closing the flow path of the transfer pipe 62.
도면에 도시되어 있지 않지만 상기 가스배출부(60)에는 흡입관(61)을 통해 미세한 크기의 흡수제 또는 흡착제가 배출되는 것을 방지할 수 있도록 필터부재를 더 구비할 수 있다.Although not shown in the drawing, the gas discharge part 60 may further include a filter member so as to prevent the fine absorbent or the adsorbent from being discharged through the suction pipe 61.
상기 가열유닛(210)에는 본체(30)의 중공부로 외기가 유입되는 것을 차단할 수 있도록 호퍼(10)에 개폐부가 설치되어 있으며, 도면에 도시되어 있지 않지만 배출부 측에도 별도의 개폐부를 설치하는 것이 바람직하다.The heating unit 210 is provided with an opening and closing portion in the hopper 10 to block the inflow of outside air into the hollow portion of the main body 30, although not shown in the drawing it is preferable to install a separate opening and closing portion on the discharge side. Do.
개폐부는 본체(30) 내부공간을 밀폐시키도록 호퍼(10)의 상단에 회전가능하게 결합되어 있다. 상기 개폐부는 가스배출부(60)의 작동상태와 연동하여 호퍼(10)의 통로를 개폐하여 본체(30)의 중공부를 외기와 연통시키거나, 외기와 격리되게 밀폐시킨다. 배출부(20)는 본체(30) 내부로 외기가 유입되는 것을 방지할 수 있게 단부측이 저장탱크(100)와 밀봉결합되는 것이 바람직하다.The opening and closing part is rotatably coupled to the upper end of the hopper 10 to seal the internal space of the main body 30. The opening and closing unit opens and closes the passage of the hopper 10 in conjunction with the operation state of the gas discharge unit 60 to communicate with the outside of the hollow portion of the main body 30, or to be isolated from the outside air. Discharge part 20 is preferably the end side is sealingly coupled to the storage tank 100 to prevent the outside air flows into the body (30).
상기와 같이 가스배출부(60)와, 개폐부를 갖는 가열유닛(210)을 이용하여 흡수제 또는 흡착제를 가열과 함께 진공분위기를 조성하여 팽창시키는 과정을 설명한다.As described above, a process of expanding the absorbent or the adsorbent by forming a vacuum atmosphere together with heating by using the gas discharge unit 60 and the heating unit 210 having the opening and closing unit will be described.
먼저, 호퍼(10)에 흡수제 또는 흡착제를 투입하게 되면 중공부로 유입된 흡수제 또는 흡착제가 중공부를 따라 배출부(20) 측으로 이송된다. 이때, 개폐부는 호퍼(10)의 통로를 개방하는 상태를 유지한다.First, when the absorbent or adsorbent is introduced into the hopper 10, the absorbent or adsorbent introduced into the hollow part is transferred to the discharge part 20 side along the hollow part. At this time, the opening and closing part maintains the state of opening the passage of the hopper 10.
호퍼(10)를 통해 일정량의 흡수제 또는 흡착제가 투입되면 개폐부를 통해 호퍼(10)의 상부를 폐쇄한다. 중공부가 밀폐된 상태에서 흡입펌프(63)를 통해 중공부의 공기를 흡입하여 중공부에 진공분위기를 조성하며, 설정된 압력이 될 때 흡입을 중단하고 차단밸브(64)를 통해 이송관(62)을 폐쇄한다. When a predetermined amount of absorbent or adsorbent is introduced through the hopper 10, the upper portion of the hopper 10 is closed through the opening and closing part. In the state where the hollow part is sealed, the air is sucked through the suction pump 63 to form a vacuum atmosphere. The suction is stopped when the set pressure is reached, and the transfer pipe 62 is opened through the shutoff valve 64. To close.
진공분위기가 조성된 중공부에서는 흡수제 또는 흡착제에 포함된 수분이 100℃ 이하의 온도에서 기화되며, 기화된 증기는 중공부의 상부에 모이게 된다. 이때, 가스배출부(60)의 차단밸브(64)를 개방하고 흡입펌프(63)를 통해 중공부에 모인 증기를 빨아들여 본체(30) 외부로 배출한다.In the hollow part in which the vacuum atmosphere is formed, the water contained in the absorbent or the adsorbent is vaporized at a temperature of 100 ° C. or lower, and the vaporized vapor is collected at the upper part of the hollow part. At this time, the shutoff valve 64 of the gas discharge part 60 is opened, and the steam collected in the hollow part through the suction pump 63 is discharged to the outside of the main body 30.
도면에 도시되어 있지 않지만, 팽창단계에는 본체(30) 내부로 열풍을 공급하면서 가열할 수도 있다.Although not shown in the drawing, the expansion step may be heated while supplying hot air into the main body 30.
상기와 같이 준비단계, 팽창단계, 혼합단계를 거쳐 조성된 수지조성물은 팽창단계에서 수분 또는 가스가 제거되고, 흡수제 또는 흡착제 내부에는 대기압보다 상대적으로 낮은 압력이 작용하고 있으므로 본 발명에 따른 수지조성물을 이용하여 도장 작업을 수행할 때 수지조성물과 공기 중의 수분이 서로 반응하여 발생하거나 수지조성물에 자체적으로 포함되어 있는 수분이나 가스를 용이하게 흡수할 수 있는 것이다.The resin composition prepared through the preparation step, the expansion step, and the mixing step as described above is water or gas is removed in the expansion step, and since the pressure is relatively lower than atmospheric pressure inside the absorbent or the adsorbent, the resin composition according to the present invention is When performing the painting operation by using the resin composition and the moisture in the air is generated by reacting with each other or can easily absorb the moisture or gas contained in the resin composition itself.
또한, 수지조성물 즉, 폴리우레탄(polyurethane), 에폭시(epoxy), 폴리에틸렌(PE), 폴리프로필렌(PP), 폴리비닐수지, 불포화폴리에스터수지, 아크릴로니트릴-부타디엔-스티렌 등과 같은 수지를 하나 또는 둘 이상을 포함하는 고분자 화합물에 제올라이트(zeolite), 실리카(silica), 몰레큐라시브(Molecular Sieves), 울라스토나이트(Wollastonite), 탈크(talc), 부석(pumice), 질석(버미쿨라이트; vermiculite), 활성탄(active carbon), 탄산칼슘(CaCO3), 플라이 애시(fly ash), 1~100Å의 미세기공을 갖는 다공성유리(porous glass), 유기분자와 금속 이온을 결합시켜 나노다공성 하이브리드 화합물인 MOF(Metal-Organic Framework)와 같은 흡수제 또는 흡착제를 투입함으로써 흡수제 또는 흡착제에 형성된 기공보다 작은 크기를 갖는 분자들은 흡수제 또는 흡착제의 기공으로 흡수되고, 기공보다 작은 크기를 갖는 분자들은 흡수제 또는 흡착제의 주변에서 기공을 폐쇄하게 되므로 수지조성물에 의해 흡수제 또는 흡착제가 캡슐화(encapsulation)되는 것이다. In addition, one or more resin compositions, such as polyurethane, epoxy, polyethylene (PE), polypropylene (PP), polyvinyl resin, unsaturated polyester resin, acrylonitrile-butadiene-styrene, or the like Zeolite, Silica, Molecular Sieves, Wollastonite, Talc, Pumice, Vermiculite in vermiculite ), Active carbon, calcium carbonate (CaCO 3 ), fly ash, porous glass with micropores of 1 ~ 100Å, organic nanoparticles and metal ions By introducing an absorbent or adsorbent such as MOF (Metal-Organic Framework), molecules having a size smaller than the pores formed in the absorbent or adsorbent are absorbed into the pores of the absorbent or adsorbent and have a smaller size than the pores. Since the molecules close the pores around the absorbent or adsorbent, the absorbent or adsorbent is encapsulated by the resin composition.
즉, 상기와 같이 수지조성물의 분자들이 흡수제 또는 흡착제의 기공 내부로 침투되어 있는 구조는 수지조성물이 경화 시 구조적인 강도를 증진시킬 수 있게 하고, 수지조성물의 분자들에 의해 캡슐화된 흡수제 또는 흡착제는 내부의 기공들이 지속적으로 부압이 발생된 상태를 유지할 수 있으므로, 도장 및 도포와 같은 작업 중 발생하는 가스 또는 수분을 용이하게 흡착할 수 있는 것이다.That is, as described above, the structure in which the molecules of the resin composition are infiltrated into the pores of the absorbent or the adsorbent enables the resin composition to enhance structural strength when cured, and the absorbent or adsorbent encapsulated by the molecules of the resin composition Since the pores in the interior can maintain a state in which negative pressure is continuously generated, it is possible to easily adsorb gas or moisture generated during operations such as painting and coating.
이상에서 설명한 본 발명에 따른 수지조성물과 이의 제조방법 및 이것을 이용한 도장방법은 도면에 도시된 일 실시 예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술분야에 있어서 통상의 지식을 가진자라면 이로부터 다양한 변형 및 균등한 타 실시 예가 가능하다는 점을 이해할 것이다.The resin composition according to the present invention, a method for manufacturing the same, and a coating method using the same have been described with reference to the exemplary embodiment shown in the drawings, but these are merely illustrative, and those skilled in the art It will be appreciated that various modifications and equivalent other embodiments are possible from this.
따라서 본 발명의 진정한 기술적인 보호범위는 첨부된 청구범위의 기술적 사상에 의해서 정해져야 할 것이다.Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (9)

  1. 베이스수지와;Base resin;
    팽창된 상태로 상기 베이스수지에 첨가되어 상기 베이스수지에서 발생하는 수분 또는 가스를 제거하는 다공질 구조의 흡수제;를 포함하는 것을 특징으로 하는 수지조성물.And a porous absorbent agent added to the base resin in an expanded state to remove moisture or gas generated from the base resin.
  2. 제1항에 있어서, 상기 흡수제는 50℃ 내지 1000℃로 가열하여 팽창시킨 것을 특징으로 하는 수지조성물.The resin composition according to claim 1, wherein the absorbent is expanded by heating at 50 ° C to 1000 ° C.
  3. 제1항에 있어서, 상기 흡수제는 진공 분위기를 조성하여 팽창시킨 것을 특징으로 하는 수지조성물.The resin composition according to claim 1, wherein the absorbent is expanded by forming a vacuum atmosphere.
  4. 제1항에 있어서, 상기 흡수제는 진공 분위기를 조성하면서, 50℃ 내지 1000℃로 가열하여 팽창시킨 것을 특징으로 하는 수지조성물.The resin composition according to claim 1, wherein the absorbent is heated and expanded at 50 ° C to 1000 ° C while forming a vacuum atmosphere.
  5. 제1항에 있어서, 상기 흡수제는 제올라이트, 탈크, 실리카, 탄산칼슘, 플라이 애시 중 어느 하나를 포함하는 것을 특징으로 하는 수지조성물.The resin composition according to claim 1, wherein the absorbent comprises any one of zeolite, talc, silica, calcium carbonate, and fly ash.
  6. 베이스수지를 준비하는 준비단계와;Preparing a base resin;
    다공질 구조의 흡수제를 팽창시키는 팽창단계와;An expansion step of expanding the absorbent of the porous structure;
    상기 베이스수지에서 발생하는 수분 또는 가스를 제거하기 위하여 상기 팽창단계에서 팽창된 상태의 상기 흡수제를 상기 베이스수지에 첨가 및 혼합하는 혼합단계;를 포함하는 것을 특징으로 하는 수지조성물의 제조방법.And a mixing step of adding and mixing the absorbent in the expanded state in the expansion step to the base resin to remove water or gas generated in the base resin.
  7. 제6항에 있어서, 상기 팽창단계에서는 상기 흡수제를 50℃ 내지 1000℃로 가열하여 팽창시키는 것을 특징으로 하는 수지조성물의 제조방법.7. The method of claim 6, wherein in the expansion step, the absorbent is heated to 50 ° C to 1000 ° C to expand the resin composition.
  8. 제6항에 있어서, 상기 팽창단계에서는 상기 흡수제에 진공분위기를 조성하여 팽창시키는 것을 특징으로 하는 수지조성물의 제조방법.The method of claim 6, wherein in the expanding step, a vacuum atmosphere is formed in the absorbent to expand the resin composition.
  9. 제6항에 있어서, 상기 팽창단계에서는 상기 흡수제에 진공분위기를 조성하면서 상기 흡수제를 50℃ 내지 1000℃로 가열하여 팽창시키는 것을 특징으로 하는 수지조성물의 제조방법.The method of claim 6, wherein in the expanding step, the resin composition is expanded by heating the absorbent to 50 ° C to 1000 ° C while forming a vacuum atmosphere in the absorbent.
PCT/KR2014/004735 2013-05-27 2014-05-27 Resin composition and method for preparing same WO2014193151A1 (en)

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