KR102633115B1 - Self-healing waterproofing method using microcapsule powder - Google Patents
Self-healing waterproofing method using microcapsule powder Download PDFInfo
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- KR102633115B1 KR102633115B1 KR1020230031178A KR20230031178A KR102633115B1 KR 102633115 B1 KR102633115 B1 KR 102633115B1 KR 1020230031178 A KR1020230031178 A KR 1020230031178A KR 20230031178 A KR20230031178 A KR 20230031178A KR 102633115 B1 KR102633115 B1 KR 102633115B1
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- waterproofing
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- microcapsule powder
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 114
- 239000003094 microcapsule Substances 0.000 title claims abstract description 65
- 239000000843 powder Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 65
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 44
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 44
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 9
- 239000004202 carbamide Substances 0.000 claims description 9
- 235000019738 Limestone Nutrition 0.000 claims description 8
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 239000006028 limestone Substances 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 5
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 4
- 239000001095 magnesium carbonate Substances 0.000 claims description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 4
- 239000000454 talc Substances 0.000 claims description 4
- 229910052623 talc Inorganic materials 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 239000012744 reinforcing agent Substances 0.000 claims description 2
- 238000009499 grossing Methods 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 18
- 239000011248 coating agent Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 10
- 238000006116 polymerization reaction Methods 0.000 description 18
- 239000000835 fiber Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- 239000003623 enhancer Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- -1 fatty acid salts Chemical class 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 239000008213 purified water Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 229920002396 Polyurea Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 3
- 239000011294 coal tar pitch Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000011258 core-shell material Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000003568 Sodium, potassium and calcium salts of fatty acids Substances 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 235000013966 potassium salts of fatty acid Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 235000013875 sodium salts of fatty acid Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000005621 tetraalkylammonium salts Chemical class 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/642—Protecting metallic construction elements against corrosion
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sealing Material Composition (AREA)
Abstract
본 발명에 따른 마이크로캡슐 분말을 이용한 자가치유 방수공법은, 구조물의 작업대상면을 평탄 처리하고 불순물을 제거하는, 전처리 단계; 상기 작업대상면에 에틸렌비닐아세테이트(ethylene vinyl acetate)를 포함하는 마이크로캡슐 분말을 포함하는 방수재를 도포하는, 방수 단계;를 포함하는 것을 특징으로 한다.
본 발명의 마이크로캡슐 분말을 이용한 자가치유 방수공법에 따르면, 에틸렌비닐아세테이트를 캡슐화한 마이크로캡슐 분말을 포함하는 방수재를 이용한 방수공법을 구현하여 방수도막의 균열부위에서 마이크로캡슐에 포함된 에틸렌비닐아세테이트가 경화되면서 자가치유를 가능케 한 효과가 있다.The self-healing waterproofing method using microcapsule powder according to the present invention includes a pretreatment step of flattening the work surface of the structure and removing impurities; A waterproofing step of applying a waterproofing material containing microcapsule powder containing ethylene vinyl acetate to the work surface.
According to the self-healing waterproofing method using microcapsule powder of the present invention, a waterproofing method using a waterproofing material containing microcapsule powder encapsulating ethylene vinyl acetate is implemented, and the ethylene vinyl acetate contained in the microcapsules is removed from the cracked area of the waterproof coating film. As it hardens, it has the effect of enabling self-healing.
Description
본 발명은 마이크로캡슐 분말을 이용한 자가치유 방수공법에 관한 것으로서, 보다 상세히 설명하면 팽창성 보강재의 기능을 하는 에틸렌비닐아세테이트를 포함하는 마이크로캡슐을 포함하여 자기치유성을 갖도록 한, 신규하고 진보한 자가치유 방수공법에 관한 것이다.The present invention relates to a self-healing waterproofing method using microcapsule powder. To be described in more detail, it is a novel and advanced self-healing method that includes microcapsules containing ethylene vinyl acetate, which functions as an intumescent reinforcement, and has self-healing properties. It is about waterproofing method.
일반적으로 집이나 빌딩 등과 같은 콘크리트 건축물의 경우 빗물 등과 같은 수분이 스며들었을 경우, 수분의 일부가 증발되지 않고 건축물 내부로 침투하여 부식이나 파손등 구조물의 내구성에 악영향을 주게 되므로, 각종 방수 재료를 사용하여 지붕, 옥상, 외벽, 바닥 등의 구조물에 방수 작업을 수행하는 것이 요구된다.In general, in the case of concrete structures such as houses and buildings, when moisture such as rainwater seeps into the structure, some of the moisture does not evaporate but penetrates into the building and adversely affects the durability of the structure, such as corrosion or damage. Therefore, various waterproofing materials are used. Therefore, it is required to perform waterproofing work on structures such as roofs, rooftops, exterior walls, and floors.
따라서 이러한 방수 작업을 수행하기 위해, 종래에는 아스팔트나 콜타르 피치와 같은 재료를 이용하여 도장이 필요한 표면에 도포하고, 그 위에 모르타르나콘크리트 등으로 보호공사를 수행하는 방법이 이용되기도 하였다.Therefore, in order to perform such waterproofing work, a conventional method was used to apply materials such as asphalt or coal tar pitch to the surface requiring painting, and then perform protective work with mortar or concrete on top.
아스팔트나 콜타르 피치는 시공이 용이하고 가격이 저렴하지만, 구조물에 균열이 발생하는 경우에는 방수층이 파괴되어 방수효과를 상실하는 문제점이 있어 현재에는 아스파트 및 콜타르 피치 만을 이용하여 방수 시공을 하지는 않는 추세이다.Asphalt and coal tar pitch are easy to construct and are inexpensive, but if a crack occurs in the structure, the waterproof layer is destroyed and the waterproofing effect is lost. Therefore, there is currently a trend not to use only asphalt and coal tar pitch for waterproofing construction. am.
이러한 문제점을 해결하기 위해 최근에는 방수 코팅재를 사용하여 건축물의 옥상, 주차장 바닥 또는 외벽 등에 시공하는 방수 공법이 제안되었다.To solve this problem, a waterproofing method has recently been proposed that uses waterproof coating materials to be applied to the rooftop, parking lot floor, or exterior wall of a building.
이에 대한 선행기술로서, 한국 등록특허 제10-1755528호에 ‘방수용 폴리우레아 조성물 및 이를 이용한 방수용 코팅방법’이 개시되어 있다.As prior art for this, Korean Patent No. 10-1755528 discloses ‘Waterproofing polyurea composition and waterproof coating method using the same.’
상기 선행기술은 방수효과가 우수하고, 내구성이 향상되었으며, 경화성이 빨라 옥상, 주차장 바닥, 탱크 내/외벽, 저수조 내/외벽의 방수 도장재로 유용한 방수용 폴리우레아 조성물 및 이를 이용한 방수용 코팅방법에 관한 것이다.The above prior art relates to a waterproof polyurea composition that has excellent waterproofing effect, improved durability, and quick curing properties, and is useful as a waterproofing coating material for rooftops, parking lot floors, tank inner/outer walls, and water tank inner/outer walls, and a waterproof coating method using the same. .
그러나 상기 선행기술의 경우 외부 인자에 의한 파손으로부터 각종 열화인자를 효과적으로 차단하지 못하는 단점이 있으며 또한 파손된 균열부위지점을 쉽게 파악하지 못하는 단점이 있다. However, the above prior art has the disadvantage of not being able to effectively block various deterioration factors from damage caused by external factors, and also having the disadvantage of not being able to easily identify the location of the damaged crack.
따라서 상술한 바와 같은 문제점을 해결하기 위해, 외부 인자에 의한 방수 도막의 파손으로부터 열화인자를 차단하고, 균열부위에 대한 자기치유를 가능케 한, 신규하고 진보한 방수공법을 개발할 필요성이 대두되는 실정이다.Therefore, in order to solve the problems described above, there is a need to develop a new and advanced waterproofing method that blocks deterioration factors from damage to the waterproof coating film caused by external factors and enables self-healing of cracks. .
본 발명은 자기치유성을 갖는 물질을 캡슐화한 마이크로캡슐분말을 포함하는 방수재를 통해 자가치유를 가능케 한 방수공법을 제공하는 것을 주요 목적으로 한다.The main purpose of the present invention is to provide a waterproofing method that enables self-healing through a waterproofing material containing microcapsule powder encapsulating a material with self-healing properties.
본 발명의 다른 목적은, 마이크로캡슐 분말의 생성 공정을 단순화하는 것이다.Another object of the present invention is to simplify the production process of microcapsule powder.
본 발명의 또 다른 목적은, 방수공법에 이용되는 방수재의 흡습성을 강화하는 것이다.Another object of the present invention is to enhance the hygroscopicity of waterproofing materials used in waterproofing methods.
상기 목적을 달성하기 위하여, 본 발명에 따른 마이크로캡슐 분말을 이용한 자가치유 방수공법은, 구조물의 작업대상면을 평탄 처리하고 불순물을 제거하는, 전처리 단계; 상기 작업대상면에 에틸렌비닐아세테이트(ethylene vinyl acetate)를 포함하는 마이크로캡슐 분말을 포함하는 방수재를 도포하는, 방수 단계;를 포함하는 것을 특징으로 한다.In order to achieve the above object, the self-healing waterproofing method using microcapsule powder according to the present invention includes a pretreatment step of flattening the work surface of the structure and removing impurities; A waterproofing step of applying a waterproofing material containing microcapsule powder containing ethylene vinyl acetate to the work surface.
나아가, 상기 마이크로캡슐 분말은, 에틸렌비닐아세테이트(ethylene vinyl acetate)를 포함하는 코어(core) 및 상기 코어를 둘러싸는 것으로서 우레아-포름알데히드 수지(urea-formaldehyde resin)를 포함하는 쉘(shell)을 포함하는 것을 특징으로 한다.Furthermore, the microcapsule powder includes a core containing ethylene vinyl acetate and a shell containing urea-formaldehyde resin surrounding the core. It is characterized by:
또한, 상기 방수재는, 폴리우레아 수지, 에폭시 수지, 우레탄 수지 및 아크릴 수지 중 적어도 어느 하나를 포함하는 수지 베이스 30 내지 50 중량부, 에틸렌초산비닐(Ethylene vinyl acetate) 40 내지 70 중량부, 라임스톤(limestone), 벤토나이트(bentonite) 및 탈크(Talc) 중 적어도 어느 하나를 포함하는 필러 1 내지 10 중량부 및 상기 마이크로캡슐 분말 1 내지 10 중량부를 포함하는 것을 특징으로 한다.In addition, the waterproofing material includes 30 to 50 parts by weight of a resin base containing at least one of polyurea resin, epoxy resin, urethane resin, and acrylic resin, 40 to 70 parts by weight of ethylene vinyl acetate, and limestone ( It is characterized in that it contains 1 to 10 parts by weight of a filler containing at least one of limestone, bentonite and talc, and 1 to 10 parts by weight of the microcapsule powder.
더하여, 상기 방수재는, 활성백토(activated clay)를 포함하는 흡습성 강화제 1 내지 10 중량부를 더 포함하여, 상기 수지 베이스 30 내지 50 중량부, 상기 에틸렌초산비닐(Ethylene vinyl acetate) 40 내지 70 중량부, 상기 필러 1 내지 10 중량부, 상기 마이크로캡슐 분말 1 내지 10 중량부 및 상기 흡습성 강화제 1 내지 10 중량부를 포함하는 것을 특징으로 한다.In addition, the waterproofing material further includes 1 to 10 parts by weight of a hygroscopic reinforcing agent containing activated clay, 30 to 50 parts by weight of the resin base, 40 to 70 parts by weight of the ethylene vinyl acetate, It is characterized in that it contains 1 to 10 parts by weight of the filler, 1 to 10 parts by weight of the microcapsule powder, and 1 to 10 parts by weight of the hygroscopic enhancer.
본 발명의 마이크로캡슐 분말을 이용한 자가치유 방수공법에 따르면, According to the self-healing waterproofing method using microcapsule powder of the present invention,
1) 자가치유성을 가진 에틸렌비닐아세테이트를 캡슐화한 마이크로캡슐 분말을 포함하는 방수재를 이용한 방수공법을 구현하여 방수도막의 균열부위에서 마이크로캡슐에 포함된 에틸렌비닐아세테이트가 경화되면서 자가치유를 가능케 하며,1) By implementing a waterproofing method using a waterproofing material containing microcapsule powder encapsulating ethylene vinyl acetate with self-healing properties, self-healing is possible as the ethylene vinyl acetate contained in the microcapsules hardens in the cracked area of the waterproof coating film.
2) 마이크로캡슐을 구성하는 쉘을 우레아-포름알데히드 수지로 구성하여 막구성물질(쉘)의 제조 공정을 단순화하였고,2) The shell that makes up the microcapsule is made of urea-formaldehyde resin to simplify the manufacturing process of the membrane constituent material (shell).
3) 방수재에 흡습성 강화제를 첨가함으로써 방수재의 흡습성을 강화시켜 균열 발생을 억제하고 방수도막의 내구성을 증진시킬 수 있도록 한 효과가 있다.3) Adding a hygroscopicity enhancer to the waterproofing material has the effect of strengthening the hygroscopicity of the waterproofing material, suppressing the occurrence of cracks, and improving the durability of the waterproofing film.
도 1은 본 발명의 자가치유 방수공법의 순서도.
도 2는 본 발명의 자가치유 방수공법이 구현된 방수 구조를 나타낸 단면도.
도 3은 본 발명의 마이크로캡슐 분말의 구조를 나타낸 단면도.
도 4는 본 발명의 마이크로캡슐 분말을 제조하는 단계를 나타낸 순서도.
도 5는 본 발명의 방수재의 구성을 나타낸 블록도.Figure 1 is a flow chart of the self-healing waterproofing method of the present invention.
Figure 2 is a cross-sectional view showing a waterproofing structure in which the self-healing waterproofing method of the present invention is implemented.
Figure 3 is a cross-sectional view showing the structure of the microcapsule powder of the present invention.
Figure 4 is a flowchart showing the steps for manufacturing the microcapsule powder of the present invention.
Figure 5 is a block diagram showing the structure of the waterproofing material of the present invention.
이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명하도록 한다. 첨부된 도면은 축척에 의하여 도시되지 않았으며, 각 도면의 동일한 참조 번호는 동일한 구성 요소를 지칭한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The accompanying drawings are not drawn to scale, and like reference numbers in each drawing refer to like elements.
도 1은 본 발명의 자가치유 방수공법의 순서도이며, 도 2는 본 발명의 자가치유 방수공법이 구현된 방수 구조를 나타낸 단면도이다.Figure 1 is a flowchart of the self-healing waterproofing method of the present invention, and Figure 2 is a cross-sectional view showing a waterproofing structure in which the self-healing waterproofing method of the present invention is implemented.
도 1,2를 참조하여 설명하면, 본 발명의 마이크로캡슐 분말을 이용한 자가치유 방수공법은 전처리 단계 및 방수 단계를 포함하는 것을 특징으로 한다.1 and 2, the self-healing waterproofing method using the microcapsule powder of the present invention is characterized by including a pretreatment step and a waterproofing step.
전처리 단계는 구조물의 작업대상면(10)을 평탄 처리하고 불순물을 제거하는 단과정이다. 이는 바람직하게 콘크리트 재질로 이루어진 구조물에서 방수 공법을 시행하고자 하는 면인 작업대상면(10)을 균일하게 평탄 처리하고, 클리닝을 수행하여 불순물을 제거하는 과정이다.The pretreatment step is a simple process of flattening the work surface 10 of the structure and removing impurities. This is a process of uniformly flattening the work surface 10, which is the surface on which the waterproofing method is to be performed in a structure made of concrete, and cleaning to remove impurities.
이때 브러쉬 등을 이용하여 불순물이나 기타 이물질을 제거할 수도 있으며, 에어나 물을 분사할 수도 있다. 만약 물을 이용한 불순물 제거의 경우, 불순물 제거 후 작업대상면(10)에 분사된 물을 완전 건조하는 것이 바람직하다.At this time, impurities or other foreign substances can be removed using a brush, etc., or air or water can be sprayed. In the case of removing impurities using water, it is desirable to completely dry the water sprayed on the work surface 10 after removing the impurities.
더불어 전처리 단계 이후에는 세정된 작업대상면(10)에 프라이머를 도포하고 건조하여 프라이머층(20)을 형성하는 프라이머 도포 단계가 더 포함될 수도 있는데, 여기서 프라이머라 함은 접착을 유발할 수 있는 다수개의 화학적 반응기를 포함하는 것으로서, 콘크리트 슬라브, 목재, 철재 등의 구조물 표면에 도포되며, 표면에 피막을 형성하여 표면을 매끄럽게 정리하고 후술할 보호시트 및 방수재와의 접착력을 높여주는 특징이 있다.In addition, after the pretreatment step, a primer application step may be further included in which a primer is applied to the cleaned work surface 10 and dried to form a primer layer 20. Here, the primer refers to a plurality of chemical reactors that can cause adhesion. It is applied to the surface of structures such as concrete slabs, wood, and steel, and has the characteristic of forming a film on the surface to smooth the surface and increase adhesion to the protective sheet and waterproofing material, which will be described later.
이때 프라이머 도포 후 프라이머 표면에 이물질이 침투되지 않도록 유의해야 한다. 프라이머 도포를 위해서는 솔, 롤러, 뿜칠기 등이 이용될 수 있으며, 약 1mm 내외의 두께로 프라이머를 도포하는 것이 바람직하다. 프라이머가 도포된 뒤에는 건조(양생) 공정이 수행되는데, 바람직하게는 약 20분 내지 1시간 동안 건조가 진행될 수 있다.At this time, care must be taken to prevent foreign substances from penetrating the primer surface after applying the primer. To apply the primer, a brush, roller, sprayer, etc. can be used, and it is preferable to apply the primer to a thickness of about 1 mm. After the primer is applied, a drying (curing) process is performed, preferably for about 20 minutes to 1 hour.
더불어 프라이머의 성분에는 별도의 제한을 두지 않으나, 바람직하게는 정제수 40 내지 70 중량%, 에틸렌비닐아세테이트 10 내지 30 중량%, 에틸렌초산비닐 공중합체(EVA) 10 내지 20 중량% 및 분산제 5 내지 15%를 포함하는 1액상의 프라이머를 이용하는 것이 보다 바람직하다.In addition, there is no separate limitation on the components of the primer, but preferably 40 to 70% by weight of purified water, 10 to 30% by weight of ethylene vinyl acetate, 10 to 20% by weight of ethylene vinyl acetate copolymer (EVA), and 5 to 15% of dispersant. It is more preferable to use a one-liquid primer containing.
방수 단계는 작업대상면(10)에 에틸렌비닐아세테이트(ethylene vinyl acetate)를 포함하는 마이크로캡슐 분말(50)을 포함하는 방수재를 도포하여 방수층(30)을 형성하는 과정이며, 이때 방수재는 롤러나 솔, 뿜칠기 등을 이용하여 도포될 수 있다. 더불어 방수재는 1 내지 10회 반복 도포될 수 있음은 물론이며, 그에 따라 충분한 두께로 방수재를 도포한 후 건조 및 경화 처리하는 것이 가능하다.The waterproofing step is a process of forming a waterproofing layer 30 by applying a waterproofing material containing microcapsule powder 50 containing ethylene vinyl acetate to the work surface 10. At this time, the waterproofing material is a roller or brush, It can be applied using a spray paint, etc. In addition, of course, the waterproofing material can be repeatedly applied 1 to 10 times, and accordingly, it is possible to apply the waterproofing material to a sufficient thickness and then dry and cure it.
만약 프라이머 도포 단계가 더 포함되어 작업대상면(10)의 표면에 프라이머층(20)이 형성된 경우, 프라이머층(20)의 상면에 방수재가 도포될 수 있고, 이때 방수재는 프라이머보다 다소 두꺼운 두께, 즉 2 내지 3mm 두께 범위로 도포되는 것이 바람직하다.If a primer application step is further included to form the primer layer 20 on the surface of the work surface 10, a waterproofing material may be applied to the upper surface of the primer layer 20, and in this case, the waterproofing material has a thickness somewhat thicker than the primer, that is, It is preferable to apply it in a thickness range of 2 to 3 mm.
이때 본 발명의 방수재는 에틸렌비닐아세테이트(ethylene vinyl acetate)를 포함하는 마이크로캡슐 분말(50)을 포함하는 것을 특징으로 하는데, 여기서 마이크로캡슐 분말(50)에서 바람직하게 코어(core)(51)를 구성하는 에틸렌비닐아세테이트는 방수재 도포 시에도 파괴되지 않고 유지되다가, 방수 도막의 균열 발생 시 마이크로캡슐 분말(50)의 쉘(shell)(52)이 깨지거나 분해되면서 코어(51)를 구성하는 에틸렌비닐아세테이트가 용출되고, 용출된 에틸렌비닐아세테이트가 수분 또는 햇빛과 반응하면서 부피가 팽창되어 방수도막의 균열부위를 메꾸는, 자가치유를 가능케 한 것을 특징으로 한다.At this time, the waterproofing material of the present invention is characterized by comprising microcapsule powder 50 containing ethylene vinyl acetate, where the microcapsule powder 50 preferably constitutes a core 51. The ethylene vinyl acetate is maintained without being destroyed even when the waterproofing material is applied, but when the waterproof coating film cracks, the shell 52 of the microcapsule powder 50 is broken or decomposed, and the ethylene vinyl acetate constituting the core 51 is broken. is eluted, and the eluted ethylene vinyl acetate reacts with moisture or sunlight, expanding in volume to fill cracks in the waterproofing film, enabling self-healing.
나아가 방수 단계에서는 본 발명의 방수재를 반복하여 1 내지 5회 도포할 수 있는데, 이때 도포되는 방수재 사이에 섬유시트(40)를 부착하여 복합 방수를 구현하는 것도 가능하다.Furthermore, in the waterproofing step, the waterproofing material of the present invention can be repeatedly applied 1 to 5 times. At this time, it is also possible to implement composite waterproofing by attaching a fiber sheet 40 between the applied waterproofing materials.
다시 말해 작업대상면(10)에 방수재를 도포하여 방수층(30)을 형성한 뒤, 방수층(30)의 상면에 섬유시트(40)를 부착하고 부착된 섬유시트(40)의 상면에 방수재를 재도포하여 추가적으로 방수층(30)을 구현하는 방식으로 방수재 조성물과 섬유시트(40)를 적층하여 복합 방수 구조를 구현해낼 수 있는 것이다.In other words, after applying the waterproofing material to the work surface 10 to form the waterproofing layer 30, attaching the fiber sheet 40 to the upper surface of the waterproofing layer 30 and reapplying the waterproofing material to the upper surface of the attached fiber sheet 40. Thus, a composite waterproof structure can be realized by laminating the waterproofing material composition and the fiber sheet 40 in a way that additionally implements the waterproofing layer 30.
이때 이용되는 섬유시트(40)의 재질에는 제한을 두지 않으나, 바람직하게는 폴리에스테르계 섬유 시트에 복수개의 미세관통공이 관통 형성된 부직포 재질의 섬유시트(40)를 이용할 수 있다.There is no limitation on the material of the fiber sheet 40 used at this time, but preferably, the fiber sheet 40 made of a non-woven material in which a plurality of micro-through holes are formed through a polyester-based fiber sheet can be used.
나아가 섬유시트(40)를 방수층(30) 표면에 부착할 때 별도의 접착제를 이용할 수도 있으나, 방수재를 건조(양생)하지 않고 방수층(30) 표면에 섬유시트(40)를 붙이는 방식으로 별도의 접착제 없이 섬유시트(40)를 부착하는 것도 가능하다.Furthermore, a separate adhesive may be used when attaching the fiber sheet 40 to the surface of the waterproof layer 30, but a separate adhesive is used by attaching the fiber sheet 40 to the surface of the waterproof layer 30 without drying (curing) the waterproofing material. It is also possible to attach the fiber sheet 40 without it.
따라서 이러한 섬유시트(40) 및 방수층(30)의 적층 구조를 통해 방수 성능을 극대화할 수 있으며, 섬유시트(40) 역시 한 장이 부착될 수도 있으나, 섬유시트(40)가 여러 장 부착되어 시공 부위의 강성을 더 높이는 것 역시 가능하다.Therefore, waterproofing performance can be maximized through the laminated structure of the fiber sheet 40 and the waterproof layer 30. Although a single fiber sheet 40 may be attached, multiple fiber sheets 40 may be attached to the construction area. It is also possible to further increase the rigidity.
나아가 섬유시트(40)가 부착된 경우 마감을 위해 섬유시트(40)의 상면에도 본 발명의 방수재를 도포하여야 하며, 이에 따라 표면을 마감 처리하고 방수성을 높일 수 있다. 또는 도포된 방수재의 상면에 별도의 표면 코트재나 마감재, 방수 페인트 등을 추가로 도포하여 표면을 미장 마감하는 것 역시 가능함은 물론이다.Furthermore, when the fiber sheet 40 is attached, the waterproofing material of the present invention must be applied to the upper surface of the fiber sheet 40 for finishing, so that the surface can be finished and the waterproofness can be improved. Alternatively, it is of course possible to plaster the surface by additionally applying a separate surface coat, finishing material, waterproof paint, etc. to the upper surface of the applied waterproofing material.
따라서 이러한 본 발명의 마이크로캡슐 분말을 이용한 자가치유 방수공법에 따르면 수분, 공기 및 햇빛(광)과 반응하는 에틸렌비닐아세테이트가 균열을 치유하는 자가치유성을 나타낼 수 있도록 하여 방수층(30)의 수명을 획기적으로 증가시킬 수 있다.Therefore, according to the self-healing waterproofing method using the microcapsule powder of the present invention, ethylene vinyl acetate, which reacts with moisture, air, and sunlight (light), can exhibit self-healing properties to heal cracks, thereby prolonging the lifespan of the waterproofing layer 30. It can be dramatically increased.
도 3은 본 발명의 마이크로캡슐 분말의 구조를 나타낸 단면도이다.Figure 3 is a cross-sectional view showing the structure of the microcapsule powder of the present invention.
도 3을 참조하여 본 발명의 마이크로캡슐 분말(50)에 대해 보다 상세히 설명하면, 본 발명의 마이크로캡슐 분말(50)은 코어(core)(51) 및, 코어(51)를 둘러싸는 쉘(shell)(52)을 포함하는 코어-쉘 구조로 이루어진 것을 기본으로 한다.Referring to FIG. 3 to describe the microcapsule powder 50 of the present invention in more detail, the microcapsule powder 50 of the present invention includes a core 51 and a shell surrounding the core 51. ) It is based on a core-shell structure containing (52).
이때 바람직하게 코어(51)는 에틸렌비닐아세테이트(ethylene vinyl acetate)를 포함하며, 쉘(52)은 우레아-포름알데히드 수지(urea-formaldehyde resin)를 포함한다.In this case, the core 51 preferably contains ethylene vinyl acetate, and the shell 52 contains urea-formaldehyde resin.
여기서 코어(51)에 포함되는 에틸렌비닐아세테이트는 투명성, 접착성, 유연성이 우수한 에틸렌과 아세트산의 공중합 수지로써, 광선 투과율이 높고 항장력과 신장력이 크며 부착 시 먼지가 적게 발생한다. 저온에 굳지 않고 고온에 흐물대지 않아 모든 계절에 사용할 수 있으며, 내산화성이 강하고 독성이 없다는 특성을 가진다.Here, the ethylene vinyl acetate included in the core 51 is a copolymer resin of ethylene and acetic acid with excellent transparency, adhesiveness, and flexibility. It has high light transmittance, high tensile strength and elongation, and generates little dust when attached. It does not harden at low temperatures or soften at high temperatures, so it can be used in all seasons, and has strong oxidation resistance and non-toxic properties.
이러한 에틸렌비닐아세테이트는 방수 시공 후 방수층(30)에 손상부위가 발생되면, 마이크로캡슐의 쉘(shell)(52) 파괴에 의해 용출될 수 있는데, 이때 용출된 에틸렌비닐아세테이트가 균열부위(손상부위)로 빠르게 흘러나오게 되며, 균열부위에 침투된 물, 공기 및 햇빛과 반응하여 균열부위에 고신축성을 지닌 에틸렌비닐아세테이트 수지막이 채워져 균열을 치유하는 자가치유성을 나타낸다.If a damaged area occurs in the waterproofing layer 30 after waterproofing construction, this ethylene vinyl acetate may be eluted due to the destruction of the shell 52 of the microcapsule. At this time, the eluted ethylene vinyl acetate may be eluted from the cracked area (damaged area). It flows out quickly and reacts with water, air and sunlight penetrating into the crack area to fill the crack area with a highly elastic ethylene vinyl acetate resin film, showing self-healing properties that heal the crack.
여기서 쉘(52)은 우레아-포름알데히드 수지(urea-formaldehyde resin)를 포함하는데, 우레아-포름알데히드 수지는 종래에 사용되는 막구성물질인 멜라민-포름알데히드 수지에 비해 중합공정이 간단하여 코어-쉘 구조의 마이크로캡슐 분말(50)의 제조를 보다 단순화한 특징을 제공한다.Here, the shell 52 includes urea-formaldehyde resin. The urea-formaldehyde resin has a simpler polymerization process than the melamine-formaldehyde resin, which is a membrane composition material used conventionally, and thus core-shell. It provides features that simplify the production of the structured microcapsule powder 50.
도 4는 본 발명의 마이크로캡슐 분말을 제조하는 단계를 나타낸 순서도이다.Figure 4 is a flowchart showing the steps for manufacturing the microcapsule powder of the present invention.
도 4를 더 참조하여 설명하면 바람직하게 본 발명의 마이크로캡슐 분말은, 바람직하게 코어 용액을 제조하는 단계, 마이크로캡슐을 제조하는 단계, 마이크로캡슐을 분말화하는 단계를 통해 제조될 수 있다.When further described with reference to FIG. 4, the microcapsule powder of the present invention may be preferably produced through the steps of preparing a core solution, preparing microcapsules, and powdering the microcapsules.
먼저 코어 용액을 제조하는데, 코어 용액은 바람직하게 에틸렌비닐아세테이트(ethylene vinyl acetate) 30 내지 50 중량부와 에탄올(ethanol) 50 내지 70 중량부를 혼합하여 제조된다.First, a core solution is prepared. The core solution is preferably prepared by mixing 30 to 50 parts by weight of ethylene vinyl acetate and 50 to 70 parts by weight of ethanol.
여기서 바람직하게 에틸렌비닐아세테이트는 분말형으로 첨가되며, 첨가된 에틸렌비닐아세테이트가 에탄올 용매 상에 분산될 수 있도록 한다.Here, ethylene vinyl acetate is preferably added in powder form so that the added ethylene vinyl acetate can be dispersed in an ethanol solvent.
이어서, 코어 용액에 우레아(urea), 포름알데히드(formaldehyde) 및 계면활성제를 첨가하고 중합하여 마이크로캡슐을 제조한다. 이때 마이크로캡슐 제조는 바람직하게 인-시투(In-situ) 중합 과정을 통해 제조될 수 있다.Next, urea, formaldehyde, and a surfactant are added to the core solution and polymerized to prepare microcapsules. At this time, microcapsules can preferably be manufactured through an in-situ polymerization process.
이때 첨가되는 계면활성제는 음이온계, 양이온계, 비이온계 및 양쪽 이온계를 포함한 어떠한 종류의 것도 가능하다. 구체적으로 지방산염, 인산 에스테르, 폴리옥시에틸렌 글리콜, 테트라알킬암모늄염, 알킬에테르황산에스테르염, α-올레핀설폰산염, 지방산알칸올아미드 등이 언급될 수 있다. 이들의 하나 또는 그이상이 단독으로 또는 배합되어 사용될 수 있다.The surfactant added at this time can be of any type, including anionic, cationic, nonionic, and zwitterionic. Specifically, fatty acid salts, phosphoric acid esters, polyoxyethylene glycol, tetraalkylammonium salts, alkyl ether sulfuric acid ester salts, α-olefin sulfonates, fatty acid alkanolamides, etc. may be mentioned. One or more of these may be used alone or in combination.
환경적인 면으로 볼 때, 생분해성이 우수한 것이 바람직하게는 선택된다. 이들 계면활성제의 구체예로는 지방산의 나트륨염, 지방산의 칼륨염, 알킬에테르 설폰산 에스테르의 나트륨, 소듐 α-올레핀-설포네이트, 지방산알칸올아미드, 알킬아민옥사이드 등이 포함될 수 있다.From an environmental standpoint, those with excellent biodegradability are preferably selected. Specific examples of these surfactants may include sodium salts of fatty acids, potassium salts of fatty acids, sodium alkyl ether sulfonic acid esters, sodium α-olefin-sulfonate, fatty acid alkanolamides, alkylamine oxides, etc.
여기서 바람직하게는 먼저 정제수 90 내지 98 중량부, 우레아 2 내지 5 중량부, 상술한 계면활성제 0.5 내지 1 중량부를 혼합하여 중합 용액을 제조한다. 이때 적절한 양의 염산과 수산화나트륨을 가하여 pH를 3.5로 유지하는 것이 제조된 마이크로캡슐의 안정성을 높이는데 더욱 효과적일 수 있다.Here, preferably, a polymerization solution is first prepared by mixing 90 to 98 parts by weight of purified water, 2 to 5 parts by weight of urea, and 0.5 to 1 part by weight of the above-mentioned surfactant. At this time, maintaining the pH at 3.5 by adding an appropriate amount of hydrochloric acid and sodium hydroxide may be more effective in increasing the stability of the manufactured microcapsules.
나아가 제조된 중합 용액에 코어 용액을 10분 후에 가하고 10분간 반응을 더진행시키게 된다. 이때 중합 용액과 코어 용액의 중량비는 바람직하게 5:1 내지 20:1일 수 있다.Furthermore, the core solution is added to the prepared polymerization solution after 10 minutes, and the reaction is allowed to proceed for another 10 minutes. At this time, the weight ratio of the polymerization solution and the core solution may preferably be 5:1 to 20:1.
10분 후 코어 용액이 가해진 중합 용액에 포름알데히드를 가하고 우레아를 더 가하여 중합을 수행하고 마이크로캡슐을 제조하게 된다. 이 과정에서 우레아-포름알데히드 수지가 코어 용액에 포함된 에틸렌비닐아세테이트의 표면에서 쉘을 형성할 수 있게 된다. 여기서 중합 용액과 포름알데히드의 중량비는 10:1 내지 30:1일 수 있으며, 중합 용액과 우레아의 중량비 역시 10:1 내지 30:1일 수 있다.After 10 minutes, formaldehyde is added to the polymerization solution containing the core solution, and urea is further added to perform polymerization and prepare microcapsules. In this process, urea-formaldehyde resin can form a shell on the surface of ethylene vinyl acetate contained in the core solution. Here, the weight ratio of the polymerization solution and formaldehyde may be 10:1 to 30:1, and the weight ratio of the polymerization solution and urea may also be 10:1 to 30:1.
제조된 마이크로캡슐을 분말화하는 단계에서는 제조된 마이크로캡슐을 증류수로 세척하고 진공 필터링하여 분말을 얻은 후 이를 24 내지 48시간 동안 건조하여 1 내지 800㎛ 범위의 마이크로캡슐 분말을 수득하는 단계이다.In the step of powdering the prepared microcapsules, the prepared microcapsules are washed with distilled water, vacuum filtered to obtain powder, and then dried for 24 to 48 hours to obtain microcapsule powder in the range of 1 to 800㎛.
이러한 본 발명의 마이크로캡슐 분말은 코어인 에틸렌비닐아세테이트 표면에 쉘을 in-situ 방식으로 중합할 수 있도록 하되, 이때 우레아-포름알데히드 수지를 중합함으로써 추가 공정 없이 단일 중합 만으로도 코어-쉘 구조를 구현해낼 수 있어 공정의 편의성을 높인 효과가 있다.The microcapsule powder of the present invention allows the shell to be polymerized in situ on the surface of the core ethylene vinyl acetate, and at this time, by polymerizing the urea-formaldehyde resin, the core-shell structure can be realized through single polymerization without additional processes. This has the effect of increasing the convenience of the process.
도 5는 본 발명의 방수재의 구성을 나타낸 블록도이다.Figure 5 is a block diagram showing the structure of the waterproofing material of the present invention.
도 5를 참조하여 설명하면, 본 발명의 방수재는 바람직하게 수지 베이스 30 내지 60 중량부, 에틸렌초산비닐 20 내지 60 중량부, 필러 1 내지 10 중량부 및 마이크로캡슐 분말 1 내지 10 중량부를 포함할 수 있다. 또한 방수재는 언급하지 않은 추가적인 조성을 더 포함할 수 있음은 물론이며, 후술하겠으나 흡습성 강화제를 더 포함할 수 있음은 물론이다.Referring to Figure 5, the waterproofing material of the present invention may preferably include 30 to 60 parts by weight of a resin base, 20 to 60 parts by weight of ethylene vinyl acetate, 1 to 10 parts by weight of filler, and 1 to 10 parts by weight of microcapsule powder. there is. In addition, of course, the waterproofing material may contain additional components not mentioned, and may further include a hygroscopicity enhancer, as will be described later.
여기서 수지 베이스는 방수 도막을 구현하기 위한 수지계 물질을 포함하는 것이며, 바람직하게는 우레아 수지, 에폭시 수지, 우레탄 수지 및 아크릴 수지 중 적어도 어느 하나를 포함하는 것일 수 있다.Here, the resin base contains a resin-based material for implementing a waterproof coating film, and may preferably contain at least one of urea resin, epoxy resin, urethane resin, and acrylic resin.
이때 우레아 수지, 에폭시 수지, 우레탄 수지, 아크릴 수지를 구성하는 단량체에 있어서는 어떠한 제한도 두지 않으므로 종래의 방수재 조성물용 우레아 수지, 에폭시 수지, 우레탄 수지, 아크릴 수지를 이루는 단량체, 가교제, 경화제 등에 있어서는 어떠한 제한도 두지 않는 것을 기본으로 한다.At this time, there are no restrictions on the monomers that make up the urea resin, epoxy resin, urethane resin, and acrylic resin, so there are no restrictions on the monomers, crosslinkers, and curing agents that make up the urea resin, epoxy resin, urethane resin, and acrylic resin for conventional waterproofing compositions. The default is not to leave anything.
에틸렌초산비닐은 투명성, 접착성, 유연성이 우수한 에틸렌과 아세트산의 공중합 수지로써, 광선 투과율이 높고 항장력과 신장력이 크며 부착 시 먼지가 적게 발생한다. 저온에 굳지 않고 고온에 흐물대지 않아 모든 계절에 사용할 수 있으며, 내산화성이 강하고 독성이 없다. 따라서 에틸렌초산비닐 첨가에 따라 접착성 및 유연성이 높은 방수 도막을 만들 수 있다.Ethylene vinyl acetate is a copolymer resin of ethylene and acetic acid with excellent transparency, adhesion, and flexibility. It has high light transmittance, high tensile strength and elongation, and generates little dust when attached. It does not harden at low temperatures or soften at high temperatures, so it can be used in all seasons, has strong oxidation resistance, and is non-toxic. Therefore, by adding ethylene vinyl acetate, a waterproof coating film with high adhesiveness and flexibility can be created.
필러는 바람직하게 라임스톤(limestone), 탄산마그네슘(magnesium carbonate) 및 탈크(Talc) 중 적어도 어느 하나를 포함하여 방수도막의 도막강도를 향상시킬 뿐 아니라 기타 추가적인 물성을 부여하는 역할을 수행한다.The filler preferably includes at least one of limestone, magnesium carbonate, and talc, and serves to not only improve the film strength of the waterproofing film but also provide other additional physical properties.
라임스톤은 염화칼슘(Calcium chloride)을 포함하는 암석을 지칭하며, 부드러우면서도 자연스러운 질감을 가지고 있어 방수 도막의 표면 질감을 개질함은 물론이거니와 pH를 조정하고 도막 강도를 향상시키는 효과를 제공한다.Limestone refers to a rock containing calcium chloride, and has a soft, natural texture that not only improves the surface texture of the waterproof coating film, but also provides the effect of adjusting pH and improving the strength of the coating film.
탈크는 주성분으로 마그네슘을 포함하는 규산염 광물의 일종으로, 전기에 대한 절연성, 내화성, 내산성을 특징으로 포함하며, 본 발명의 방수재에 방청 효과를 부여하는 역할을 수행할 수 있다.Talc is a type of silicate mineral containing magnesium as a main ingredient, and is characterized by electrical insulation, fire resistance, and acid resistance, and can play a role in providing a rust prevention effect to the waterproofing material of the present invention.
탄산마그네슘은 방수재의 pH를 조정하는 기능을 제공하며 난연성이 뛰어나, 방수재에 난연성을 부여할 수 있다.Magnesium carbonate provides the function of adjusting the pH of waterproofing materials and has excellent flame retardancy, so it can impart flame retardancy to waterproofing materials.
따라서 이러한 방수재는 다양한 수지를 기반으로 할 수 있되, 마이크로캡슐 분말을 통해 자가치유성을 겸비함은 물론이거니와 에틸렌초산비닐을 통해 접착성 및 유연성이 뛰어난 방수 도막을 구현할 수 있으며, 나아가 필러를 통해 도막강도의 향상, 표면 질감 개질, 방청, 난연 효과를 부여할 수 있다.Therefore, these waterproofing materials can be based on various resins, and not only have self-healing properties through microcapsule powder, but also can create a waterproof coating film with excellent adhesion and flexibility through ethylene vinyl acetate. Furthermore, the coating film can be formed through filler. It can provide strength improvement, surface texture modification, rust prevention, and flame retardant effects.
더불어 본 발명의 방수재는 흡습성 강화제 1 내지 10 중량부를 더 포함할 수 있으며, 이에 따라 상기 수지 베이스 30 내지 60 중량부, 상기 에틸렌초산비닐(Ethylene vinyl acetate) 20 내지 60 중량부, 상기 필러 1 내지 10 중량부, 상기 마이크로캡슐 분말 1 내지 10 중량부 및 상기 흡습성 강화제 1 내지 10 중량부를 포함할 수 있다.In addition, the waterproofing material of the present invention may further include 1 to 10 parts by weight of a hygroscopic reinforcement, and accordingly, 30 to 60 parts by weight of the resin base, 20 to 60 parts by weight of the ethylene vinyl acetate, and 1 to 10 parts by weight of the filler. parts by weight, 1 to 10 parts by weight of the microcapsule powder, and 1 to 10 parts by weight of the hygroscopicity enhancer.
여기서 흡습성 강화제의 유효 성분인 활성백토는 일본의 화산 지대에 넓게 분포하는 산성 백토를 황산을 처리하고 활성을 높여 흡착력을 증대시킨 것이며, 악취 물질 및 수분에 대한 흡착제로써의 성능이 뛰어나 방수재에서 발생할 수 있는 불쾌한 냄새를 제거할 수 있을 뿐 아니라 흡습성을 높일 수 있어, 방수 성능 저하를 방지할 수 있는 기능을 제공한다.Here, activated clay, which is the active ingredient of the hygroscopicity enhancer, is made by treating acidic clay widely distributed in volcanic areas in Japan with sulfuric acid and increasing its activity to increase the adsorption power. It has excellent performance as an adsorbent for odorous substances and moisture, which can be generated from waterproofing materials. It not only removes unpleasant odors, but also increases hygroscopicity, providing a function to prevent deterioration of waterproof performance.
따라서 이러한 흡습성 강화제를 더 포함하는 방수재는 흡습성 강화를 통해 방수 성능 저하를 방지하고 균열 발생 시 균열 부위의 불필요한 수분을 제거할 수 있으며, 나아가 방수재에서 발생하는 불쾌한 냄새를 제거할 수 있는 효과를 제공한다.
이와 같은 본 발명의 방수재의 구성에 따른 물성을 설명하기 위해 실시예 및 비교예의 평가 결과를 비교하여 설명하도록 한다. 실시예는 본 발명의 방수재의 바람직한 실시예 1,2로 구성되어 있고, 비교예는 종래의 방수재 조성물이다.Therefore, a waterproofing material that further contains such a hygroscopicity enhancer can prevent a decrease in waterproofing performance by strengthening the hygroscopicity, remove unnecessary moisture from the crack area when a crack occurs, and further provide the effect of removing unpleasant odors generated from the waterproofing material. .
In order to explain the physical properties according to the configuration of the waterproofing material of the present invention, the evaluation results of Examples and Comparative Examples will be compared and explained. The examples consist of preferred examples 1 and 2 of the waterproofing material of the present invention, and the comparative example is a conventional waterproofing material composition.
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<실시예 1><Example 1>
에틸렌비닐아세테이트 40g과 에탄올 60g을 혼합하여 코어 용액을 제조하였다.A core solution was prepared by mixing 40 g of ethylene vinyl acetate and 60 g of ethanol.
정제수 94g, 우레아 5g, 폴리옥시에틸렌글리콜 1g을 혼합하여 중합 용액을 제조하였으며, 중합 용액에 염산을 가하여 pH를 3.5로 적정하였다.A polymerization solution was prepared by mixing 94 g of purified water, 5 g of urea, and 1 g of polyoxyethylene glycol, and hydrochloric acid was added to the polymerization solution to adjust the pH to 3.5.
중합 용액 100g을 비이커에 넣고 10분간 교반한 뒤, 코어 용액 20g을 가하고 10분 간 추가 교반하였다.100 g of the polymerization solution was placed in a beaker and stirred for 10 minutes, then 20 g of the core solution was added and stirred for an additional 10 minutes.
그 후 해당 비이커에 포름알데히드 5g, 우레아 5g을 더 가한 뒤 교반하여 중합을 수행하여 마이크로캡슐을 제조하였다.Afterwards, 5 g of formaldehyde and 5 g of urea were added to the beaker and stirred to perform polymerization to prepare microcapsules.
제조된 마이크로캡슐을 증류수로 세척하고 진공 필터링하여 분말을 얻은 후 이를 48시간 동안 건조하고 분쇄하여 평균입도가 350㎛인 마이크로캡슐 분말을 수득하였다.The prepared microcapsules were washed with distilled water and vacuum filtered to obtain powder, which was then dried for 48 hours and ground to obtain microcapsule powder with an average particle size of 350㎛.
아크릴 에멀젼 50g, 에틸렌초산비닐 30g, 라임스톤 10g, 마이크로캡슐 분말 10g을 혼합하여 방수재를 제조하였다.A waterproofing material was prepared by mixing 50 g of acrylic emulsion, 30 g of ethylene vinyl acetate, 10 g of limestone, and 10 g of microcapsule powder.
<실시예 2><Example 2>
에틸렌비닐아세테이트 40g과 에탄올 60g을 혼합하여 코어 용액을 제조하였다.A core solution was prepared by mixing 40 g of ethylene vinyl acetate and 60 g of ethanol.
정제수 94g, 우레아 5g, 폴리옥시에틸렌글리콜 1g을 혼합하여 중합 용액을 제조하였으며, 중합 용액에 염산을 가하여 pH를 3.5로 적정하였다.A polymerization solution was prepared by mixing 94 g of purified water, 5 g of urea, and 1 g of polyoxyethylene glycol, and hydrochloric acid was added to the polymerization solution to adjust the pH to 3.5.
중합 용액 100g을 비이커에 넣고 10분간 교반한 뒤, 코어 용액 20g을 가하고 10분 간 추가 교반하였다.100 g of the polymerization solution was placed in a beaker and stirred for 10 minutes, then 20 g of the core solution was added and stirred for an additional 10 minutes.
그 후 해당 비이커에 포름알데히드 5g, 우레아 5g을 더 가한 뒤 교반하여 중합을 수행하여 마이크로캡슐을 제조하였다.Afterwards, 5 g of formaldehyde and 5 g of urea were added to the beaker and stirred to perform polymerization to prepare microcapsules.
제조된 마이크로캡슐을 증류수로 세척하고 진공 필터링하여 분말을 얻은 후 이를 48시간 동안 건조하고 분쇄하여 평균입도가 350㎛인 마이크로캡슐 분말을 수득하였다.The prepared microcapsules were washed with distilled water and vacuum filtered to obtain powder, which was then dried for 48 hours and ground to obtain microcapsule powder with an average particle size of 350㎛.
흡습성 강화제로서 활성백토를 준비하였다.Activated clay was prepared as a hygroscopicity enhancer.
아크릴 에멀젼 45g, 에틸렌초산비닐 30g, 라임스톤 10g, 마이크로캡슐 분말 10g, 활성백토(activated clay) 5g을 혼합하여 방수재를 제조하였다.A waterproofing material was prepared by mixing 45 g of acrylic emulsion, 30 g of ethylene vinyl acetate, 10 g of limestone, 10 g of microcapsule powder, and 5 g of activated clay.
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<비교예><Comparative example>
아크릴 에멀젼 60g, 에틸렌초산비닐 30g, 라임스톤 10g을 혼합하여 방수재를 제조하였다.A waterproofing material was prepared by mixing 60g of acrylic emulsion, 30g of ethylene vinyl acetate, and 10g of limestone.
실시예 및 비교예에 따라 제조된 방수재의 내열치수안정성, 내피로성능, 내움푹패임성능, 방수성, 인장접착성, 전단접착성, 인장접착강도를 고속도로공사 전문시방서-'04 교면용 도막방수재 시험방법에 의거하여 측정하였으며, 그 결과를 하기 표 1에 나타내었다.The heat resistance dimensional stability, fatigue resistance performance, dent resistance performance, waterproofness, tensile adhesion, shear adhesion, and tensile adhesive strength of the waterproofing materials manufactured according to the examples and comparative examples were tested according to the highway construction specification-'04 coating waterproofing material for bridge surfaces. It was measured according to the method, and the results are shown in Table 1 below.
(이때, ◎ : 매우 양호, ○ : 양호, △ : 보통, × : 불량을 의미한다.)(At this time, ◎: Very good, ○: Good, △: Average, ×: Poor.)
(kgf/cm2)Tensile adhesion
(kgf/ cm2 )
(kgf/cm2)Shear bond strength
(kgf/ cm2 )
인장접착강도(kgf/cm2)7 days after immersion
Tensile adhesive strength (kgf/cm 2 )
(%)Shear elongation rate
(%)
표 1을 참조하면 알 수 있듯이, 본 발명의 실시예 1 내지 2의 방수재는 고속도로공사 전문시방서-'04 교면용 도막방수재 시험항목의 기준에 모두 만족하였고, 비교예와 비교할 때 모든 특성이 개선되었음을 알 수 있었다. 특히 내열치수 안정성과 수침 7일 후 인장접착강도가 크게 향상된 것을 확인할 수 있다.As can be seen from Table 1, the waterproofing materials of Examples 1 and 2 of the present invention satisfied all the standards of the highway construction specification-'04 test items for coating film waterproofing materials for bridge surfaces, and compared to the comparative example, all characteristics were improved. Could know. In particular, it can be seen that heat resistance dimensional stability and tensile bond strength after 7 days of water immersion have significantly improved.
나아가 실시예 1 내지 2 사이의 비교를 통해, 흡습성 강화제의 첨가에 따라 전반적인 물성이 모두 향상되는 것을 확인할 수 있다.Furthermore, through comparison between Examples 1 and 2, it can be seen that the overall physical properties are improved with the addition of the hygroscopicity enhancer.
한편, 인위적으로 도막에 0.1~1mm의 균열을 유도한 후 자기치유 특성을 관찰한 결과, 실시예 1 내지 2의 방수재는 2일 이내에 균열이 모두 회복되는 것이 관찰되었고, 비교예에서는 균열이 그대로 존재하는 것이 관찰되었다.
지금까지 설명한 바와 같이, 본 발명에 따른 마이크로캡슐 분말을 이용한 자가치유 방수공법의 구성 및 작용을 상기 설명 및 도면에 표현하였지만 이는 예를 들어 설명한 것에 불과하여 본 발명의 사상이 상기 설명 및 도면에 한정되지 않으며, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변화 및 변경이 가능함은 물론이다.Meanwhile, as a result of observing the self-healing characteristics after artificially inducing a crack of 0.1 to 1 mm in the coating film, it was observed that all cracks in the waterproofing materials of Examples 1 and 2 were recovered within 2 days, and in the comparative example, the cracks remained as they were. It was observed that
As explained so far, the configuration and operation of the self-healing waterproofing method using microcapsule powder according to the present invention are expressed in the above description and drawings, but this is only an example and the idea of the present invention is limited to the above description and drawings. Of course, various changes and modifications are possible without departing from the technical spirit of the present invention.
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10 : 작업대상면 20 : 프라이머층
30 : 방수층 40 : 섬유시트
50 : 마이크로캡슐 분말 51 : 코어
52 : 쉘10: Work surface 20: Primer layer
30: waterproof layer 40: fiber sheet
50: Microcapsule powder 51: Core
52: shell
Claims (8)
구조물의 작업대상면을 평탄 처리하고 불순물을 제거하는, 전처리 단계;
상기 작업대상면에 에틸렌비닐아세테이트(ethylene vinyl acetate)를 포함하는 마이크로캡슐 분말을 포함하는 방수재를 도포하는, 방수 단계;를 포함하고,
상기 방수재는,
우레아 수지, 에폭시 수지, 우레탄 수지 및 아크릴 수지 중 적어도 어느 하나를 포함하는 수지 베이스 30 내지 60 중량부와, 에틸렌초산비닐(Ethylene vinyl acetate) 20 내지 60 중량부 및, 라임스톤(limestone), 탄산마그네슘(magnesium carbonate) 및 탈크(Talc) 중 적어도 어느 하나를 포함하는 필러 1 내지 10 중량부와, 상기 마이크로캡슐 분말 1 내지 10 중량부를 포함하는 것을 특징으로 하는, 자가치유 방수공법.A self-healing waterproofing method using microcapsule powder,
A pretreatment step of smoothing the work surface of the structure and removing impurities;
A waterproofing step of applying a waterproofing material containing microcapsule powder containing ethylene vinyl acetate to the work surface,
The waterproofing material is,
30 to 60 parts by weight of a resin base containing at least one of urea resin, epoxy resin, urethane resin, and acrylic resin, 20 to 60 parts by weight of ethylene vinyl acetate, limestone, and magnesium carbonate. A self-healing waterproofing method comprising 1 to 10 parts by weight of a filler containing at least one of (magnesium carbonate) and talc, and 1 to 10 parts by weight of the microcapsule powder.
상기 마이크로캡슐 분말은,
에틸렌비닐아세테이트(ethylene vinyl acetate)를 포함하는 코어(core) 및
상기 코어를 둘러싸는 것으로서 우레아-포름알데히드 수지(urea-formaldehyde resin)를 포함하는 쉘(shell)을 포함하는 것을 특징으로 하는, 자가치유 방수공법.According to clause 1,
The microcapsule powder is,
A core containing ethylene vinyl acetate and
A self-healing waterproofing method comprising a shell containing urea-formaldehyde resin surrounding the core.
상기 마이크로캡슐 분말은,
에틸렌비닐아세테이트(ethylene vinyl acetate) 30 내지 50 중량부와 에탄올(ethanol) 50 내지 70 중량부를 혼합하여 코어 용액을 제조하는 단계;
상기 코어 용액에 우레아(urea), 포름알데히드(formaldehyde) 및 계면활성제를 첨가하고 중합하여 마이크로캡슐을 제조하는 단계;
제조된 마이크로캡슐을 분말화하는 단계;를 통해 제조되는 것을 특징으로 하는, 자가치유 방수공법.According to clause 2,
The microcapsule powder is,
Preparing a core solution by mixing 30 to 50 parts by weight of ethylene vinyl acetate and 50 to 70 parts by weight of ethanol;
Adding urea, formaldehyde, and a surfactant to the core solution and polymerizing them to produce microcapsules;
A self-healing waterproofing method, characterized in that it is manufactured through the step of powdering the manufactured microcapsules.
상기 전처리 단계와 상기 방수 단계 사이에는,
상기 작업대상면의 상면에 프라이머를 도포하는, 프라이머 도포 단계;가 포함되고,
상기 방수 단계는,
상기 프라이머가 도포된 작업대상면에 상기 방수재를 도포하는 것을 특징으로 하는, 자가치유 방수공법.According to clause 1,
Between the pretreatment step and the waterproofing step,
A primer application step of applying a primer to the upper surface of the work surface,
The waterproofing step is,
A self-healing waterproofing method, characterized in that the waterproofing material is applied to the work surface on which the primer is applied.
상기 방수재는,
활성백토(activated clay)를 포함하는 흡습성 강화제 1 내지 10 중량부를 더 포함하여,
상기 수지 베이스 30 내지 60 중량부, 상기 에틸렌초산비닐(Ethylene vinyl acetate) 20 내지 60 중량부, 상기 필러 1 내지 10 중량부, 상기 마이크로캡슐 분말 1 내지 10 중량부 및 상기 흡습성 강화제 1 내지 10 중량부를 포함하는 것을 특징으로 하는, 자가치유 방수공법.According to clause 1,
The waterproofing material is,
Further comprising 1 to 10 parts by weight of a hygroscopic reinforcing agent containing activated clay,
30 to 60 parts by weight of the resin base, 20 to 60 parts by weight of the ethylene vinyl acetate, 1 to 10 parts by weight of the filler, 1 to 10 parts by weight of the microcapsule powder, and 1 to 10 parts by weight of the hygroscopic reinforcer. A self-healing waterproofing method comprising:
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101025011B1 (en) * | 2010-05-27 | 2011-03-25 | (주)디오 | Water proofing treatment composition for road having self treatment and treating method for water proofing by using same |
| KR101755528B1 (en) | 2016-12-06 | 2017-07-10 | 현대건업 (주) | Waterproof composition comprising polyurea and process of waterproof coating by using the same |
| KR101806135B1 (en) * | 2017-05-23 | 2018-01-10 | 김영옥 | Waterproof composition of Self-healing type composition and waterproof method using fiber reinforcing agent |
| JP2019528159A (en) * | 2016-07-11 | 2019-10-10 | マイクロテック・ラボラトリーズ・インコーポレーテッド | Capsules having an outer shell connected by a surfactant and method for making the same |
| CN114671642A (en) * | 2020-11-30 | 2022-06-28 | 兰刚 | Waterproof impervious concrete with self-repairing function |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101025011B1 (en) * | 2010-05-27 | 2011-03-25 | (주)디오 | Water proofing treatment composition for road having self treatment and treating method for water proofing by using same |
| JP2019528159A (en) * | 2016-07-11 | 2019-10-10 | マイクロテック・ラボラトリーズ・インコーポレーテッド | Capsules having an outer shell connected by a surfactant and method for making the same |
| KR101755528B1 (en) | 2016-12-06 | 2017-07-10 | 현대건업 (주) | Waterproof composition comprising polyurea and process of waterproof coating by using the same |
| KR101806135B1 (en) * | 2017-05-23 | 2018-01-10 | 김영옥 | Waterproof composition of Self-healing type composition and waterproof method using fiber reinforcing agent |
| CN114671642A (en) * | 2020-11-30 | 2022-06-28 | 兰刚 | Waterproof impervious concrete with self-repairing function |
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