KR20210076818A - Organic and inorganic complex composition for concrete surface treatment for polyurea coating and method of surface treatment using the same - Google Patents
Organic and inorganic complex composition for concrete surface treatment for polyurea coating and method of surface treatment using the same Download PDFInfo
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- KR20210076818A KR20210076818A KR1020200080324A KR20200080324A KR20210076818A KR 20210076818 A KR20210076818 A KR 20210076818A KR 1020200080324 A KR1020200080324 A KR 1020200080324A KR 20200080324 A KR20200080324 A KR 20200080324A KR 20210076818 A KR20210076818 A KR 20210076818A
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- Prior art keywords
- polyurea
- surface treatment
- silane
- concrete surface
- organic
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- 239000004567 concrete Substances 0.000 title claims abstract description 56
- 229920002396 Polyurea Polymers 0.000 title claims abstract description 52
- 239000000203 mixture Substances 0.000 title claims abstract description 33
- 239000011248 coating agent Substances 0.000 title claims abstract description 28
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 238000004381 surface treatment Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 8
- 229910021432 inorganic complex Inorganic materials 0.000 title 1
- 229920002635 polyurethane Polymers 0.000 claims abstract description 49
- 239000004814 polyurethane Substances 0.000 claims abstract description 49
- 239000011368 organic material Substances 0.000 claims abstract description 16
- 125000005370 alkoxysilyl group Chemical group 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- 239000004570 mortar (masonry) Substances 0.000 claims description 15
- 229910000077 silane Inorganic materials 0.000 claims description 13
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 11
- -1 silane compound Chemical class 0.000 claims description 11
- 229920005862 polyol Polymers 0.000 claims description 10
- 150000003077 polyols Chemical class 0.000 claims description 10
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Substances CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 8
- 239000002518 antifoaming agent Substances 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000004359 castor oil Substances 0.000 claims description 5
- 235000019438 castor oil Nutrition 0.000 claims description 5
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 claims description 3
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 3
- VNTPGSZQKARKHG-UHFFFAOYSA-N trimethyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound C[Si](C)(C)CCCOCC1CO1 VNTPGSZQKARKHG-UHFFFAOYSA-N 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- ZYAASQNKCWTPKI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propan-1-amine Chemical compound CO[Si](C)(OC)CCCN ZYAASQNKCWTPKI-UHFFFAOYSA-N 0.000 claims 1
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 17
- 239000011147 inorganic material Substances 0.000 abstract description 17
- 239000002131 composite material Substances 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 27
- 239000004576 sand Substances 0.000 description 9
- 239000000377 silicon dioxide Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000012948 isocyanate Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000010459 dolomite Substances 0.000 description 5
- 229910000514 dolomite Inorganic materials 0.000 description 5
- 230000008961 swelling Effects 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000002513 isocyanates Chemical class 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 235000010290 biphenyl Nutrition 0.000 description 3
- 239000004305 biphenyl Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 description 3
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZXHZWRZAWJVPIC-UHFFFAOYSA-N 1,2-diisocyanatonaphthalene Chemical compound C1=CC=CC2=C(N=C=O)C(N=C=O)=CC=C21 ZXHZWRZAWJVPIC-UHFFFAOYSA-N 0.000 description 1
- IKYAJDOSWUATPI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propane-1-thiol Chemical compound CO[Si](C)(OC)CCCS IKYAJDOSWUATPI-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- NEMUYEYIURIMBM-UHFFFAOYSA-N C[SiH](C)C.C(C1CO1)OCC=C Chemical compound C[SiH](C)C.C(C1CO1)OCC=C NEMUYEYIURIMBM-UHFFFAOYSA-N 0.000 description 1
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- FYHXNYLLNIKZMR-UHFFFAOYSA-N calcium;carbonic acid Chemical compound [Ca].OC(O)=O FYHXNYLLNIKZMR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 239000002385 cottonseed oil Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- XJKVPKYVPCWHFO-UHFFFAOYSA-N silicon;hydrate Chemical compound O.[Si] XJKVPKYVPCWHFO-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- WNWMJFBAIXMNOF-UHFFFAOYSA-N trimethyl(propyl)silane Chemical compound CCC[Si](C)(C)C WNWMJFBAIXMNOF-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4988—Organosilicium-organic copolymers, e.g. olefins with terminal silane groups
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/488—Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/488—Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
- C04B41/4884—Polyurethanes; Polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
- C04B41/522—Multiple coatings, for one of the coatings of which at least one alternative is described
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- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Paints Or Removers (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
Description
본 발명은 콘크리트 방수 코팅 기술에 관한 것으로서, 특히 폴리우레아를 코팅할 때 콘크리트의 표면을 개질하기 위한 기술에 관한 것이다. The present invention relates to a concrete waterproofing coating technology, and more particularly, to a technology for modifying the surface of concrete when coating polyurea.
폴리우레아(polyurea)는 인장강도와 신장률이 우수할 뿐만 아니라 내화학성 및 내구성 역시 뛰어나고, 건축 구조물 바닥 코팅제, 산업용 코팅제, 선박의 코팅제 등으로 널리 사용되고 있다. Polyurea has excellent tensile strength and elongation, as well as excellent chemical resistance and durability, and is widely used as a floor coating agent for building structures, industrial coating agents, and ship coating agents.
시공의 측면에서, 폴리우레아는 폴리우레탄이나 에폭시와 달리 소수성을 띠기 때문에 코팅 대상물의 표면에 습기가 있어도 대상물의 표면에 직접 분사하여 코팅을 할 수 있으며, 경화속도도 빨라 공기단축에도 유리하다. 또한 대상물의 표면의 온도가 낮더라도 코팅에 지장이 없으며, 열에도 매우 강하기 때문에 적용 범위가 점점 넓어지고 있다. In terms of construction, polyurea is hydrophobic, unlike polyurethane or epoxy, so even if there is moisture on the surface of the object to be coated, it can be sprayed directly on the surface of the object to be coated, and the curing speed is fast, which is advantageous for shortening the period of time. In addition, even if the temperature of the surface of the object is low, there is no problem in the coating, and since it is very strong against heat, the application range is gradually expanding.
그러나 폴리우레아를 콘크리트 표면에 직접 도포할 경우에는 콘크리트 표면 상태에 따라서 이른바 '핀홀(pin-hole)' 현상과 '부풀음' 현상이 발생되는 문제점이 있다. 핀홀 및 부풀음 현상이 발생하면 콘크리트 표면이 매끄럽지 않게 되므로 미려한 표면 마감이 어려워진다. However, when polyurea is directly applied to the concrete surface, there is a problem in that so-called 'pin-hole' and 'swelling' phenomena occur depending on the condition of the concrete surface. When pinholes and swelling occur, the concrete surface becomes uneven, making it difficult to achieve a beautiful surface finish.
이러한 현상은 폴리우레아의 빠른 반응성에 의한 발열과, 폴리우레아 단량체 성분인 이소시아네이트와 수분의 반응에 의해서 야기되는 것이다. 이를 해결하기 위해 우레탄, 에폭시, 폴리머 시트 등의 바탕조정제를 콘크리트 표면에 도포한 후, 그 위에 다시 폴리우레아를 도포하는 방법이 사용된다. This phenomenon is caused by exotherm due to the rapid reactivity of polyurea and reaction between isocyanate, which is a monomer component of polyurea, and moisture. In order to solve this problem, a method of applying a background control agent such as urethane, epoxy, or polymer sheet to the concrete surface, and then applying polyurea again thereon is used.
그러나 상기한 방법의 콘크리트 표면처리 역시 많은 문제점이 있다. 예컨대 우레탄 소재를 사용하면 콘크리트-우레탄-폴리우레아 층이 순차적으로 형성되는데 부착강도가 약한 우레탄 층이 박리되는 현상이 발생한다. 또한 에폭시는 폴리우레아와 성격이 완전히 다른 소재로서 폴리우레아가 잘 부착되지 않기 때문에 폴리우레아층이 쉽게 벗겨진다. 폴리머 시트로 콘크리트 표면 처리할 경우는 폴리머 시트간에 이음새 부분에 문제가 발생하고 경제적인 시공도 어렵다. However, the concrete surface treatment of the above method also has many problems. For example, if a urethane material is used, concrete-urethane-polyurea layers are sequentially formed, but the urethane layer with weak adhesion strength is peeled off. In addition, since epoxy is a completely different material from polyurea, the polyurea layer is easily peeled off because the polyurea does not adhere well. When the concrete surface is treated with a polymer sheet, a problem occurs in the seam between the polymer sheets, and economical construction is difficult.
대한민국 공개특허 제2006-0014901호는 폴리우레아를 방수코팅제로 코팅하기 전에 바탕조정제로 폴리우레탄을 도포함으로써, 상부에 시공되는 폴리우레아가 핀홀 없이 평탄하고 균일하게 도포될 수 있게 하는 방법을 제시한다. 그러나 에폭시나 폴리우레탄은 경화시간이 2~3일 정도 소요되며, 온도나 습기에 도 취약할 뿐만 아니라, 용제를 사용하기 때문에 밀폐된 공간에서의 작업성에 문제가 된다. Korean Patent Laid-Open Publication No. 2006-0014901 proposes a method for allowing the polyurea to be applied thereon to be applied flatly and uniformly without pinholes by applying polyurethane as a background adjuster before coating polyurea with a waterproof coating agent. However, epoxy or polyurethane takes 2-3 days to cure, is not only vulnerable to temperature and moisture, but also has a problem in workability in a closed space because it uses a solvent.
본 발명은 상기한 문제점을 해결하기 위한 것으로서 콘크리트층과 폴리우레아층 사이에 도포되는 바탕조정제로서 유기재료와 무기재료의 복합 조성물과, 이 복합 조성물을 이용한 콘크리트 표면 처리방법을 제공하는데 그 목적이 있다. The present invention is to solve the above problems, and an object of the present invention is to provide a composite composition of an organic material and an inorganic material as a ground control agent applied between a concrete layer and a polyurea layer, and a concrete surface treatment method using the composite composition. .
한편, 본 발명의 명시되지 않은 또 다른 목적들은하기의 상세한 설명 및 그 효과로부터 용이하게 추론할 수 있는 범위 내에서 추가적으로 고려될 것이다.On the other hand, other objects not specified in the present invention will be additionally considered within the range that can be easily inferred from the following detailed description and effects thereof.
상기 목적을 달성하기 위한 본 발명의 일 실시예에 따른 폴리우레아 코팅을 위한 유무기 하이브리드 콘크리트 표면처리 조성물은 알콕시실릴기가 수분산 폴리우레탄에 도입된 실란-말단 수분산 폴리우레탄; 복수의 유기물로 이루어진 경화제; 및 시멘트를 포함하는 몰탈재;가 혼합된 것에 특징이 있다. An organic-inorganic hybrid concrete surface treatment composition for polyurea coating according to an embodiment of the present invention for achieving the above object includes: a silane-terminated water-dispersed polyurethane in which an alkoxysilyl group is introduced into a water-dispersed polyurethane; a curing agent made of a plurality of organic materials; and a mortar material containing cement; it is characterized in that it is mixed.
본 발명에 따르면, 상기 실란-말단 수분산 폴리우레탄 10~15 중량%, 경화제 10~15 중량%, 몰탈재 70~80 중량%로 배합될 수 있다. According to the present invention, the silane-terminated water-dispersed polyurethane may be blended with 10 to 15 wt%, a curing agent 10 to 15 wt%, and a mortar material at 70 to 80 wt%.
본 발명의 일 예에 따르면, 상기 실란-말단 수분산 폴리우레탄은 폴리올과 실란 화합물을 포함하며, 상기 실란 화합물은 2-(3,4 에폭시 사이클로헥실)에틸트리메톡시실란, 3-글리시드옥시프로필메틸디메틸실란, 3-글리시드옥시프로필트리메톡시실란, N-2-(아미노에틸)-3-아미노프로필메틸디메톡시실란, 3-아미노프로필트라이에톡시실란 중 적어도 어느 하나를 사용한다. According to an embodiment of the present invention, the silane-terminated water-dispersed polyurethane includes a polyol and a silane compound, and the silane compound is 2-(3,4 epoxy cyclohexyl)ethyltrimethoxysilane, 3-glycidoxy At least one of propylmethyldimethylsilane, 3-glycidoxypropyltrimethoxysilane, N-2-(aminoethyl)-3-aminopropylmethyldimethoxysilane, and 3-aminopropyltriethoxysilane is used.
본 발명의 일 예에서, 상기 실란-말단 수분산 폴리우레탄은, 10~30중량%, 폴리에틸-co-프로필렌글리콜 20~35중량%, 피마자유 20~35중량%, 3-글리시드옥시프로필렌메틸디메틸실란 5~15중량%, 트리에틸아민 1~3중량%, 장쇄알콜계 소포제 2~3중량%의 범위로 혼합제조된다. In one embodiment of the present invention, the silane-terminated aqueous dispersion polyurethane is 10-30 wt%, polyethyl-co-propylene glycol 20-35 wt%, castor oil 20-35 wt%, 3-glycidoxypropylene Methyldimethylsilane 5 to 15% by weight, triethylamine 1-3% by weight, long-chain alcohol-based antifoaming agent is prepared in the range of 2 to 3% by weight.
본 발명의 또 다른 목적에 따른 콘크리트 표면처리 방법은 콘크리트 표면에 상기한 조성물을 바탕조정제로 도포하는 단계; 및 상기 바탕조정제가 도포된 층 위에 폴리우레아를 도포하여 코팅하는 단계;를 포함하는 것에 특징이 있다. Concrete surface treatment method according to another object of the present invention comprises the steps of applying the above-described composition to the concrete surface as a background control agent; and coating by applying polyurea on the layer to which the background control agent is applied.
본 발명에서는 유기재료와 무기재료의 복합 조성물로 콘크리트 표면에 프라이머층을 형성함으로써, 콘크리트에 폴리우레아 도막을 안정적으로 형성할 수 있다는 이점이 있다. In the present invention, by forming a primer layer on the concrete surface with a composite composition of an organic material and an inorganic material, there is an advantage that a polyurea coating film can be stably formed on the concrete.
본 발명에 따른 조성물은 무기재료를 이용하여 콘크리트와의 부착강도를 향상시킬 뿐만 아니라, 유기재료에 의하여 폴리우레아와의 부착강도도 향상된다. The composition according to the present invention not only improves adhesion strength with concrete by using an inorganic material, but also improves adhesion strength with polyurea by using an organic material.
폴리우레아의 여러가지 장점에도 불구하고, 콘크리트에 직접 도포시 발생하는 핀홀 현상이나 부풀음 현상은 본 발명에 따른 조성물을 콘크리트 표면에 전처리함으로써 모두 해결될 수 있다. 이에 폴리우레아 도막의 이점을 최대한 발현할 수 있다는 이점이 있다. In spite of the various advantages of polyurea, pinhole phenomenon or swelling phenomenon that occurs when directly applied to concrete can be solved by pre-treating the composition according to the present invention to the concrete surface. Accordingly, there is an advantage that the advantage of the polyurea coating film can be expressed to the maximum.
한편, 여기에서 명시적으로 언급되지 않은 효과라 하더라도, 본 발명의 기술적 특징에 의해 기대되는 이하의 명세서에서 기재된 효과 및 그 잠정적인 효과는 본 발명의 명세서에 기재된 것과 같이 취급됨을 첨언한다.On the other hand, even if it is an effect not explicitly mentioned herein, it is added that the effects described in the following specification expected by the technical features of the present invention and their potential effects are treated as described in the specification of the present invention.
도 1은 본 발명의 일 예에 따른 콘크리트 표면 처리 조성물의 화학적 일체화 작용을 설명하기 위한 도면이다.
도 2는 본 발명의 일 예에 따른 콘크리트 표면 처리 조성물의 제조과정 및 도포과정을 설명하기 위한 개략적 흐름도이다.
※ 첨부된 도면은 본 발명의 기술사상에 대한 이해를 위하여 참조로서 예시된 것임을 밝히며, 그것에 의해 본 발명의 권리범위가 제한되지는 아니한다.1 is a view for explaining the chemical integration action of the concrete surface treatment composition according to an embodiment of the present invention.
2 is a schematic flowchart for explaining the manufacturing process and the application process of the concrete surface treatment composition according to an embodiment of the present invention.
※ It is revealed that the accompanying drawings are exemplified as a reference for understanding the technical idea of the present invention, and the scope of the present invention is not limited thereby.
본 발명을 설명함에 있어서 관련된 공지기능에 대하여 이 분야의 기술자에게 자명한 사항으로서 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 상세한 설명을 생략한다.In the description of the present invention, if it is determined that the subject matter of the present invention may be unnecessarily obscured as it is obvious to those skilled in the art with respect to related known functions, the detailed description will be omitted.
본 발명은 콘크리트 표면에 폴리우레아를 코팅하기 전에 표면 처리를 통해 콘크리트의 표면을 개질하기 위한 것이다. The present invention is to modify the surface of concrete through surface treatment before coating the polyurea on the concrete surface.
앞에서도 언급한 바와 같이, 폴리우레아는 여러가지 장점이 있지만 콘크리트 표면에 폴리우레아를 직접 도포하는 경우 핀홀 현상이나 부풀음 현상이 발생하는 문제점이 있다. 본 발명은 이를 해결하기 위한 것으로서 유기재료와 무기재료가 복합된 하이브리드 콘크리트 표면 처리 조성물을 제공한다. 본 발명에 따른 조성물을 콘크리트 표면에 도포하여 프라이머층을 형성한 후, 프라이머층 위에 폴리우레아를 코팅한다. 본 발명에 따른 조성물로 프라이머층을 형성할 경우, 콘크리트 층과 프라이머 층 및 폴리우레아 층이 화학적으로 일체화된다는 이점이 있다. 이를 통해 기존의 폴리우레아 사용시의 문제점이 모두 해소되어, 폴리우레아 코팅의 장점을 최대한 발현할 수 있다. As mentioned before, polyurea has various advantages, but there is a problem in that a pinhole phenomenon or swelling phenomenon occurs when polyurea is directly applied to a concrete surface. The present invention provides a hybrid concrete surface treatment composition in which an organic material and an inorganic material are combined to solve this problem. After the composition according to the present invention is applied to the concrete surface to form a primer layer, polyurea is coated on the primer layer. When the primer layer is formed with the composition according to the present invention, there is an advantage that the concrete layer, the primer layer, and the polyurea layer are chemically integrated. Through this, all the problems of using the existing polyurea can be solved, and the advantages of the polyurea coating can be maximized.
본 발명에 따른 조성물은 무기재료인 콘크리트와 유기재료인 폴리우레아에 모두 화학적으로 결합되도록, 유기재료와 무기재료를 혼합하여 제조되는 것에 특징이 있다. The composition according to the present invention is characterized in that it is prepared by mixing an organic material and an inorganic material so as to be chemically bonded to both the inorganic material concrete and the organic material polyurea.
유기재료는 수분산 폴리우레탄 재료에 알콕시 실릴기를 포함된 폴리우레탄 하이브리드 수지(이하‘실란-말단 수분산 폴리우레탄’이라함)를 포함한다. 무기재료로는 몰탈재료, 에컨대 시멘트, 규사, 물을 혼합한 몰탈을 사용할 수 있다. The organic material includes a polyurethane hybrid resin containing an alkoxysilyl group in a water-dispersible polyurethane material (hereinafter referred to as 'silane-terminated water-dispersed polyurethane'). As the inorganic material, a mortar material, for example, a mortar mixed with cement, silica sand, and water can be used.
보다 상세히 설명하기로 한다. It will be described in more detail.
본 발명에 따른 콘크리트 표면처리 조성물은 실란-말단 수분산 폴리우레탄 10 ~ 15 중량% 와 경화제 10 ~ 15 중량% 및 몰탈재 70 ~ 80 중량% 으로 구성된다.The concrete surface treatment composition according to the present invention is composed of 10 to 15% by weight of a silane-terminated water-dispersed polyurethane, 10 to 15% by weight of a curing agent, and 70 to 80% by weight of a mortar.
실란-말단 수분산 폴리우레탄이 10 중량% 미만일 경우 폴리우레탄 경화물질의 인장강도가 낮아질 수 있고, 15 중량%를 초과할 경우 미반응 물질이 발생할 수 있는바 바람직하지 않다. 또한 경화제의 함량이 10 중량% 미만일 경우 미반응 물질이 발생할 수 있고, 15 중량%를 초과할 경우 경화물질의 인장강도가 낮아지고 폴리우레탄 수지가 부풀어 오르는 문제가 발생할 수 있기 때문이다. When the amount of the silane-terminated water-dispersed polyurethane is less than 10 wt%, the tensile strength of the polyurethane cured material may be lowered, and if it exceeds 15 wt%, unreacted materials may be generated, which is not preferable. In addition, if the content of the curing agent is less than 10% by weight, unreacted materials may occur, and if it exceeds 15% by weight, the tensile strength of the cured material may decrease and the polyurethane resin may swell.
본 발명에 따른 조성물은 크게 유기재료와 무기재료로 나누어진다. 실란-말단 수분산 폴리우레탄과 경화제가 유기재료이며, 몰탈재가 무기재료이다. The composition according to the present invention is largely divided into an organic material and an inorganic material. Silane-terminated water-dispersed polyurethane and curing agent are organic materials, and mortar materials are inorganic materials.
주요 재료인 실란-말단 수분산 폴리우레탄은 폴리올과 실란화합물을 포함한다. 폴리올은 합성 폴리올과 천연 폴리올을 사용할 수 있다. 합성 폴리올은 모노에틸렌글리콜, 디에틸렌글리콜, 트리에틸렌글리콜, 프로필렌글리콜, 폴리에틸렌글리콜, 폴리프로필렌글리코, 폴리에틸렌-co-프로필렌글리콜 등이 사용될 수 있다. 또한 천연 폴리올로서는 대두유, 코코넛 오일, 로진에스터, 면실유, 피마자유, 팜오일 등을 사용할 수 있다. 여기에 우레탄 촉매로 모노메틸아민, 디메틸아민, 트리에틸아민 등을 첨가하여 사용할 수 있다. 실란 화합물은 2-(3,4 에폭시사이클로헥실)에틸트리메톡시실란, 3-글리시드옥시프로필메틸디메틸실란, 3-글리시드옥시프로필트리메톡시실란, N-2-(아미노에틸)-3-아미노프로필메틸디메톡시실란, 3-아미노프로필트라에톡시실란, 등을 사용할 수 있다. The main material, silane-terminated water-dispersible polyurethane, includes polyols and silane compounds. The polyol may be a synthetic polyol or a natural polyol. Synthetic polyols may include monoethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, polyethylene glycol, polypropylene glycol, polyethylene-co-propylene glycol, and the like. In addition, as the natural polyol, soybean oil, coconut oil, rosin ester, cottonseed oil, castor oil, palm oil and the like can be used. Here, monomethylamine, dimethylamine, triethylamine, etc. may be added as a urethane catalyst. The silane compound is 2-(3,4 epoxycyclohexyl)ethyltrimethoxysilane, 3-glycidoxypropylmethyldimethylsilane, 3-glycidoxypropyltrimethoxysilane, N-2-(aminoethyl)-3 -aminopropylmethyldimethoxysilane, 3-aminopropyltraethoxysilane, etc. can be used.
또한 첨가제인 소포제로 장쇄알콜계 소포제 혹은 실리콘계 소포제를 첨가할 수 있으나, 그 종류가 특별히 한정되는 것은 아니다. In addition, a long-chain alcohol-based anti-foaming agent or a silicone-based anti-foaming agent may be added as an anti-foaming agent, but the type thereof is not particularly limited.
본 실시예에서 주제부는 합성 폴리올로 디에틸렌글리콜 10~30중량%, 폴리에틸-co-프로필렌글리콜 20~35중량%, 피마자유 20~35중량%, 실란화합물로 3-글리시드옥시프로필렌메틸디메틸실란(다른 실란화합물 포함) 5~15중량%, 촉매로 트리에틸아민 1~3중량%, 장쇄알콜계 소포제 2~3중량%로 제조하였다. In this embodiment, the main part is a synthetic polyol of 10 to 30% by weight of diethylene glycol, 20 to 35% by weight of polyethyl-co-propylene glycol, 20 to 35% by weight of castor oil, and 3-glycidoxypropylenemethyldimethyl as a silane compound. It was prepared with 5-15 wt% of silane (including other silane compounds), 1-3 wt% of triethylamine as a catalyst, and 2-3 wt% of a long-chain alcohol-based antifoaming agent.
실란-말단 수분산 폴리우레탄에서 실란 화합물이 5~15중량%로 5중량% 미만일 경우 콘크리트 모체와 폴리우레탄내의 분말과의 화학적 결합력이 약하게 되어 기대하는 물성을 발휘하기 어렵고, 15 중량%를 초과하여 첨가될 경우 가격이 너무 많이 올라 경제성을 확보하기 어렵다. In silane-terminated water-dispersed polyurethane, when the silane compound is 5 to 15% by weight and less than 5% by weight, the chemical bonding force between the concrete matrix and the powder in the polyurethane is weak, making it difficult to exhibit the expected physical properties, and exceeding 15% by weight If it is added, the price increases too much, making it difficult to secure economic feasibility.
상기 폴리올과 결합되어 실란-말단 수분산 폴리우레탄을 완성시키는 경화제부는 이소시아네이트 계열 경화제가 포함될 수 있다. 이소시아네이트 계열로 톨루엔 디이소시아네이트, 메틸 디페닐 디이소시아네이트, 나프탈렌 디이소시아네이트, 톨루이딘 디이소시아네이트, 헥사메틸렌 디이소시아네이트, 자일렌 디이소사아네이트를 사용할 수 있고, 단일 혹은 이종이상 혼합하여 사용될 수 있다.An isocyanate-based curing agent may be included in the curing agent part that is combined with the polyol to complete the silane-terminated water-dispersed polyurethane. Toluene diisocyanate, methyl diphenyl diisocyanate, naphthalene diisocyanate, toluidine diisocyanate, hexamethylene diisocyanate, and xylene diisocyanate may be used as the isocyanate series, and single or a mixture of two or more types may be used.
경화제부에도 실란-말단 수분산 폴리우레탄 화합물의 완성을 위해 실란 화합물을 첨가할 수 있다. 3-이소시아네이트프로필트리에톡시실란, 트리-(트리메톡시실리프로필)이소시아누레이트, 3-머캅토프로필메틸디메톡시실란, 3-머캅토프로필트리메톡시실란 등을 사용할 수 있다. A silane compound may also be added to the curing agent part to complete the silane-terminal water-dispersed polyurethane compound. 3-isocyanatepropyltriethoxysilane, tri-(trimethoxysilylpropyl)isocyanurate, 3-mercaptopropylmethyldimethoxysilane, 3-mercaptopropyltrimethoxysilane, etc. can be used.
본 실시 예 에서는 경화제부에 메틸 디페닐 디이소시아네이트 85~95 중량%, 실란 화합물로 3-이소시아네이트플로필트리에톡시실란 5~15 중량%를 사용하여 제조하였다. In this example, 85 to 95% by weight of methyl diphenyl diisocyanate and 5 to 15% by weight of 3-isocyanate propyltriethoxysilane as a silane compound were used in the curing agent.
무기재료로는 1종 보통시멘트, 3종 조강 시멘트, 백시멘트, 석회석 분말, 석회암, 돌로마이트, 4호 규사, 5호 규사, 6호 규사, 7호 규사, 8호 규사, 황산바륨, 슬래그, 탄산칼슘, 소석회, 플라이애쉬 등을 단독, 2종 혹은 3종 이상 혼합 사용할 수 있으나, 그 종류가 일반적으로 단순 충진재 및 시멘트와 같이 수화반응을 일으킬 수 있는 역할을 수행할 수 있는 재료로 특별히 한정되는 것은 아니다. As inorganic materials, type 1 ordinary cement, type 3 crude steel cement, white cement, limestone powder, limestone, dolomite, No. 4 silica sand, No. 5 silica sand, No. 6 silica sand, No. 7 silica sand, No. 8 silica sand, barium sulfate, slag, carbonic acid Calcium, slaked lime, fly ash, etc. can be used alone, in combination of two or more types, but the type is generally limited to materials that can perform a role that can cause a hydration reaction, such as simple fillers and cement. no.
본 실시 예 에서는 백시멘트 20~30 중량%, 석회석 분말 20~30 중량%, 돌로마이트 6호 규사 30~40 중량%, 돌로마이트 7호 규사 20~30 중량% 사용되어 제조되었다. In this example, 20-30 wt% of white cement, 20-30 wt% of limestone powder, 30-40 wt% of Dolomite No. 6 silica sand, and 20-30 wt% of Dolomite No. 7 silica sand were used.
즉 본 발명에 따른 조성물의 일 성분인 폴리우레탄은 강인하고 내마모, 유연성, 내용제성 및 탄성이 우수하여 각종 탄성체, 발포체, 접착제, 합성피혁, 탄성 섬유 등 다양한 분야에 적용되고 있다. 반면에 시멘트, 규사, 물로 구성된 무기재료는 몰탈 재료로 높은 강도와 콘크리트의 접착성이 우수해 콘크리트 보수재료로 많이 활용되고 있다. 폴리우레탄 성분의 유기재료와 몰탈 구성의 무기재료간의 상용성과 부착력 및 화학적 일체화를 위한 구성성분으로 알콕시 실릴기를 함유한 실란-말단 수분산 폴리우레탄을 적용하였다.That is, polyurethane, which is one component of the composition according to the present invention, is strong and has excellent abrasion resistance, flexibility, solvent resistance and elasticity, and thus has been applied to various fields such as various elastomers, foams, adhesives, synthetic leather, and elastic fibers. On the other hand, inorganic materials composed of cement, silica sand, and water are mortar materials and are widely used as concrete repair materials because of their high strength and excellent adhesion to concrete. A silane-terminated water-dispersed polyurethane containing an alkoxysilyl group was applied as a component for compatibility, adhesion, and chemical integration between the organic material of the polyurethane component and the inorganic material of the mortar component.
위에서 설명한 바와 같이, 본 발명에서는 몰탈재의 함량이 가장 많으며, 이는 콘크리트와의 결합력을 증대시킨다. 또한 본 조성물은 유기물인 폴리우레아와의 결합강도가 증대되어야 하므로 알콕시 실릴기를 함유한 실란-말단 수분산 폴리우레탄과 경화제를 포함한다. 즉 유기재료와 무기재료에 모두 잘 결합되는 하이브리드 재료로 형성하였다. As described above, in the present invention, the content of the mortar material is the largest, which increases the bonding strength with concrete. In addition, the present composition includes a silane-terminated water-dispersed polyurethane containing an alkoxysilyl group and a curing agent because the bonding strength with the organic polyurea must be increased. That is, it was formed as a hybrid material that is well combined with both organic and inorganic materials.
본 발명에 따른 콘크리트 표면 처리 조성물은 수분산 폴리우레탄이 갖는 낮은 점도로 인하여 콘크리트의 기공을 메우고 미세 균열까지 주입된다. 이에 콘크리트의 물리적 인장력을 보완하여 콘크리트 균열 저항성을 확보하게 된다. The concrete surface treatment composition according to the present invention fills the pores of the concrete due to the low viscosity of the water-dispersed polyurethane and is injected even to microcracks. This supplements the physical tensile force of concrete to secure concrete crack resistance.
또한 무기재료인 몰탈은 폴리우레탄의 낮은 강도를 보상해주고 콘크리트와의 일체성을 강화한다. 그리고 도 1에 도시된 바와 같이 실란-말단 폴리우레탄은 알콕시 실릴기의 함유로 시멘트의 수화물인 Ca(OH)2 과 화학적 결합을 통해 폴리우레탄 화합물과 콘크리트 및 몰탈과 화학적 결합을 만들어 재료의 일체화를 만들어 준다. In addition, the inorganic material mortar compensates for the low strength of polyurethane and strengthens the integrity with concrete. And, as shown in FIG. 1, the silane-terminated polyurethane contains an alkoxysilyl group and chemically bonds with Ca(OH)2, a hydrate of cement, to form a chemical bond with the polyurethane compound and concrete and mortar to integrate the material. makes it
한편 폴리우레아 코팅 시공에서는 콘크리트 프라이머층 표면에 노출된 폴리우레탄 반응기인 이소시아네이트 혹은 알콜 반응기와 폴리우레아의 아민화합물 또는 이소시아네이트 반응기와의 화학적 결합을 만들어 바탕조정제와 폴리우레아와 화학적으로 일체화된 우수한 도막을 형성할 수 있게 하였다.On the other hand, in the polyurea coating construction, a chemical bond between the isocyanate or alcohol reactive group exposed on the surface of the concrete primer layer and the polyurea amine compound or isocyanate reactive group is formed to form an excellent coating film chemically integrated with the base conditioner and polyurea. made it possible
결과적으로 이와 같은 조성물은 기존 폴리우레아가 갖는 핀홀(pin-hole) 및 부풀음 현상을 미연에 방지하고 미려한 폴리우레아 도막을 형성할 수 있게 해준다.As a result, such a composition prevents pin-holes and swelling of the existing polyurea in advance and makes it possible to form a beautiful polyurea coating film.
본 발명에 따른 조성물의 제조과정 및 시공방법은 매우 간단하다. 도 2에 도시된 바와 같이, 실란-말단 폴리우레탄 주제와 경화제를 넣고 교반하고, 이후 분말 몰탈 조성물을 넣어 고르게 섞어주면 된다. 이렇게 만들어진 조성물은 스프레이, 롤러, 레끼 등을 이용하여 도막두께 1.0 ~ 2.0mm 정도로 콘크리트의 표면에 얇게 포설해주면 된다. 포설 이후 대략 8~12 시간 정도가 경과하면 건조가 완료되어 프라이머층이 형성된다. 이후 폴리우레아 도막 코팅을 진행하면 콘크리트의 표면 코팅이 완료된다. The manufacturing process and construction method of the composition according to the present invention is very simple. As shown in Figure 2, the silane-terminated polyurethane main agent and curing agent are added and stirred, and then the powder mortar composition is added and mixed evenly. The composition made in this way can be thinly laid on the surface of concrete with a coating film thickness of 1.0 to 2.0 mm using a spray, roller, or rake. After about 8 to 12 hours have elapsed after installation, drying is completed and a primer layer is formed. After that, the surface coating of the concrete is completed when the polyurea coating film is applied.
이하 실시예, 비교예 및 실험예를 통해 본 발명의 효과에 대하여 설명한다. Hereinafter, the effects of the present invention will be described through Examples, Comparative Examples and Experimental Examples.
[비교예 1][Comparative Example 1]
콘크리트의 양생이 완료한 후, 일반적인 바탕조정제로 사용되는 경도 60~80(shore A), 인장강도 2~3 MPa, 신장률 400~500%의 물성을 갖는 폴리우레탄 바탕조정제를 사용하였다. 바탕조정제두께는 1~2mm로 하였다. 이후 바탕조정재가 완전 경화되기 전, 폴리우레아를 약 1.5mm 코팅하여 1일 정도 경화시켰다. 마지막 단계로 변색방지를 위해 우레탄계 top 코팅제를 도포하여 바닥재시공을 완성하였다. After curing of the concrete was completed, a polyurethane base conditioner having the physical properties of hardness 60-80 (shore A), tensile strength of 2-3 MPa, and elongation of 400-500%, which is used as a general base conditioner, was used. The thickness of the background adjuster was set to 1 to 2 mm. After that, before the background control material was completely cured, about 1.5 mm of polyurea was coated and cured for about 1 day. As a final step, a urethane-based top coating was applied to prevent discoloration, completing the flooring construction.
[실시예 1 내지 4][Examples 1 to 4]
본 발명의 실란-말단 수분산 폴리우레탄의 주제부는 디에틸렌글리콜, 폴리에틸-co-프로필렌글리콜, 피마자유, 트리에틸아민, 3-글리시드옥시프로필메틸디메틸실란 혹은 N-2-(아미노에틸)-3-아미노프로필메틸디메톡시실란, 소포제로 BYK054를 사용해 아래 표와 같이 제조하였다. The main part of the silane-terminated aqueous dispersion polyurethane of the present invention is diethylene glycol, polyethyl-co-propylene glycol, castor oil, triethylamine, 3-glycidoxypropylmethyldimethylsilane or N-2-(aminoethyl) -3-Aminopropylmethyldimethoxysilane and BYK054 as an antifoam were prepared as shown in the table below.
또한 실란-말단 수분산 폴리우레탄의 경화제부는 폴리머릭 메틸 디페닐 디이소시아네이트, 3-이소시아네이트프로필트리에톡시실란을 사용해 아래 표 1과 같이 제조하였다. In addition, the curing agent part of the silane-terminated water-dispersed polyurethane was prepared as shown in Table 1 below using polymeric methyl diphenyl diisocyanate and 3-isocyanate propyltriethoxysilane.
[표 1][Table 1]
또한 실란-말단 수분산 폴리우레탄의 분말조성물로는 백시멘트 20중량%, 석회석분말 30중량%, 돌로마이트 6호사 20중량%, 돌로마이트 7호사 30중량%로 사용되어 제조되었다. In addition, as a powder composition of the silane-terminated aqueous dispersion polyurethane, 20 wt% of white cement, 30 wt% of limestone powder, 20 wt% of Dolomite No. 6, and 30 wt% of Dolomite No. 7 were used.
상기와 같이 혼합 제조된 주제부, 경화제부, 분말은 각각 15중량%, 15중량%, 70중량%의 비율로 아래와 같은 시공방법으로 사용되었다.The main part, the curing agent part, and the powder prepared by mixing as described above were used in the following construction method in proportions of 15% by weight, 15% by weight, and 70% by weight, respectively.
주제부와 경화제부를 1,500 rpm의 교속교반으로 1분간 혼합한 후, 몰탈재 분말을 첨가하여 1,500 rpm으로 3 ~ 5분간 고르게 혼합하였다. 이후 롤러, 흙손 혹은 레끼 등을 활용하여 1~2mm 두께로 도포하여 실란-말단 수분산 폴리우레탄 바탕조정재를 시공하였다. After mixing the main part and the hardener part for 1 minute with alternating stirring at 1,500 rpm, mortar powder was added and mixed evenly at 1,500 rpm for 3 to 5 minutes. After that, using a roller, trowel, or rake, etc., it was applied to a thickness of 1 to 2 mm to construct a silane-terminated water-dispersed polyurethane base control material.
이후 바닥조정재가 완전 경화되기 전, 폴리우레아를 약 1.5mm 코팅하여 1일 정도 경화시켰다. 마지막 단계로 변색방지를 위해 우레탄계 top 코팅제를 도포하여 바닥재시공을 완성하였다. After that, before the floor regulating material was completely cured, about 1.5 mm of polyurea was coated and cured for about 1 day. As a final step, a urethane-based top coating was applied to prevent discoloration, completing the flooring construction.
[물리적 특성 평가][Physical property evaluation]
물리적 특성 평가는 바탕조정재 자체로 평가하고, 폴리우레아(상도)-폴리우레탄(바탕조정제), 폴리우레아(상도)-실란,말단 수분산 폴리우레탄(바탕조정제) 계면 접착강도는 구분하여 평가하였다. The evaluation of physical properties was evaluated by the base control material itself, and the interfacial adhesive strength of polyurea (top coat)-polyurethane (base adjuster), polyurea (top coat)-silane, and water-dispersed polyurethane (base adjuster) at the end was evaluated separately.
(1)접착강도 (1) Adhesive strength
접착강도는 폴리우레탄(바탕조정제)-콘크리트 와 실란-말단 수분산 폴리우레탄(바탕조정제)-콘크리트의 시편과 폴리우레아(상도)-폴리우레탄(바탕조정제), 폴리우레아(상도)-실란,말단 수분산 폴리우레탄(바탕조정제) 계면 접착강도로 구분해서 KS F 2476:2017 시험법에 의거해 실험하였다. Adhesive strength is polyurethane (base adjuster) - concrete and silane - water dispersion at the end polyurethane (base adjuster) - concrete specimen and polyurea (top coat) - polyurethane (base adjuster), polyurea (top coat) - silane, end Water-dispersed polyurethane (base adjuster) was tested according to the KS F 2476:2017 test method by classifying the interfacial adhesive strength.
(2)인장강도(2) Tensile strength
인장강도는 바탕조정재 단독으로 KS M ISO 527-2:2013 시험법에 의거해 실험하였다. Tensile strength was tested according to the KS M ISO 527-2:2013 test method with the background adjusting material alone.
(3)핀홀의 개수(3) Number of pinholes
폴리우레탄 바탕조정재와 실란-말단 수분산 폴리우레탄 바탕조정재를 처리한 후 폴리우레아 시공을 한 부위를 가로 1M 세로 1M로 하여 표면에 발생된 핀홀의 개수를 측정하였다. The number of pinholes generated on the surface was measured by making the polyurea construction site 1M in width and 1M in length after treatment with the polyurethane background control material and the silane-terminated water-dispersed polyurethane background control material.
실험 결과는 아래의 표 2와 같다. The experimental results are shown in Table 2 below.
[표 2][Table 2]
실험 결과 실란-말단 수분산 폴리우레탄과 콘크리트 및 폴리우레아와의 접착강도가 비교예에 비해 월등하게 우수한 결과를 나타내었다. 이는 콘크리트-바탕조정재-폴리우레아 층이 일체화된 현상으로 판단되어진다. 또한 핀홀의 개수도 거의 관찰이 되지 않았다. 이는 콘크리의 핀홀을 메우는 역할을 충분히 수행한 결과로 판단되어진다. As a result of the experiment, the adhesive strength between the silane-terminated water-dispersed polyurethane and concrete and polyurea was significantly superior to that of the comparative example. This is judged to be a phenomenon in which the concrete-ground adjusting material-polyurea layer is integrated. Also, the number of pinholes was hardly observed. This is judged to be the result of sufficiently performing the role of filling the pinholes in concrete.
본 발명의 보호범위가 이상에서 명시적으로 설명한 실시예의 기재와 표현에 제한되는 것은 아니다. 또한, 본 발명이 속하는 기술분야에서 자명한 변경이나 치환으로 말미암아 본 발명이 보호범위가 제한될 수도 없음을 다시 한 번 첨언한다.The protection scope of the present invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is added once again that the protection scope of the present invention cannot be limited due to obvious changes or substitutions in the technical field to which the present invention pertains.
Claims (5)
복수의 유기물로 이루어진 경화제; 및
시멘트를 포함하는 몰탈재;가 혼합된 폴리우레아 코팅을 위한 유무기 하이브리드 콘크리트 표면처리 조성물. silane-terminated water-dispersed polyurethane in which an alkoxysilyl group is introduced into water-dispersed polyurethane;
a curing agent made of a plurality of organic materials; and
An organic-inorganic hybrid concrete surface treatment composition for polyurea coating mixed with; mortar containing cement.
상기 실란-말단 수분산 폴리우레탄 10~15 중량%, 경화제 10~15 중량%, 몰탈재 70~80 중량%로 배합되는 것을 특징으로 하는 폴리우레아 코팅을 위한 유무기 하이브리드 콘크리트 표면처리 조성물. According to claim 1,
The organic-inorganic hybrid concrete surface treatment composition for polyurea coating, characterized in that the silane-terminated aqueous dispersion polyurethane 10-15 wt%, curing agent 10-15 wt%, and mortar material 70-80 wt% are blended.
상기 실란-말단 수분산 폴리우레탄은 폴리올과 실란 화합물을 포함하며,
상기 실란 화합물은 2-(3,4 에폭시 사이클로헥실)에틸트리메톡시실란, 3-글리시드옥시프로필메틸디메틸실란, 3-글리시드옥시프로필트리메톡시실란, N-2-(아미노에틸)-3-아미노프로필메틸디메톡시실란, 3-아미노프로필트라이에톡시실란 중 적어도 어느 하나를 사용하는 것을 특징으로 하는 폴리우레아 코팅을 위한 유무기 하이브리드 콘크리트 표면처리 조성물. According to claim 1,
The silane-terminated water-dispersed polyurethane comprises a polyol and a silane compound,
The silane compound is 2-(3,4 epoxy cyclohexyl)ethyltrimethoxysilane, 3-glycidoxypropylmethyldimethylsilane, 3-glycidoxypropyltrimethoxysilane, N-2-(aminoethyl)- Organic-inorganic hybrid concrete surface treatment composition for polyurea coating, characterized in that at least one of 3-aminopropylmethyldimethoxysilane and 3-aminopropyltriethoxysilane is used.
상기 실란-말단 수분산 폴리우레탄은, 디에틸렌글리콜 10~30중량%, 폴리에틸-co-프로필렌글리콜 20~35중량%, 피마자유 20~35중량%, 3-글리시드옥시프로필렌메틸디메틸실란 5~15중량%, 트리에틸아민 1~3중량%, 장쇄알콜계 소포제 2~3중량%의 범위로 혼합제조되는 것을 특징으로 하는 폴리우레아 코팅을 위한 유무기 하이브리드 콘크리트 표면처리 조성물. According to claim 1,
The silane-terminated aqueous dispersion polyurethane is 10 to 30% by weight of diethylene glycol, 20 to 35% by weight of polyethyl-co-propylene glycol, 20 to 35% by weight of castor oil, 3-glycidoxypropylenemethyldimethylsilane 5 ~15% by weight, triethylamine 1-3% by weight, organic-inorganic hybrid concrete surface treatment composition for polyurea coating, characterized in that the mixture is prepared in the range of 2-3% by weight of a long-chain alcohol-based antifoaming agent.
상기 바탕조정제가 도포된 층 위에 폴리우레아를 도포하여 코팅하는 단계;를 포함하는 것을 특징으로 하는 콘크리트 표면처리 방법. Applying the composition according to any one of claims 1 to 4 to the concrete surface as a background control agent; and
and coating by applying polyurea on the layer to which the background control agent is applied.
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