KR102486794B1 - Crosslinked composition comprising ethylene-vinyl acetate coopolymer and urethane-acrylic emulsion, multi waterproof layer of the same and multi construction method of the same - Google Patents
Crosslinked composition comprising ethylene-vinyl acetate coopolymer and urethane-acrylic emulsion, multi waterproof layer of the same and multi construction method of the same Download PDFInfo
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- urethane
- ethylene
- vinyl acetate
- acrylic emulsion
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- 239000000839 emulsion Substances 0.000 title claims abstract description 69
- 239000005038 ethylene vinyl acetate Substances 0.000 title claims abstract description 68
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title claims abstract description 68
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 238000010276 construction Methods 0.000 title description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 title 1
- 239000011248 coating agent Substances 0.000 claims abstract description 51
- 238000000576 coating method Methods 0.000 claims abstract description 51
- 229920005989 resin Polymers 0.000 claims abstract description 36
- 239000011347 resin Substances 0.000 claims abstract description 36
- 238000004078 waterproofing Methods 0.000 claims abstract description 26
- 239000000049 pigment Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004606 Fillers/Extenders Substances 0.000 claims abstract description 8
- 239000000654 additive Substances 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 19
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 11
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000009477 glass transition Effects 0.000 claims description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 239000004816 latex Substances 0.000 claims description 7
- 229920000126 latex Polymers 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 230000000704 physical effect Effects 0.000 claims description 4
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003623 enhancer Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 8
- 230000001502 supplementing effect Effects 0.000 abstract description 4
- 238000004132 cross linking Methods 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002318 adhesion promoter Substances 0.000 description 4
- 239000002518 antifoaming agent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 239000002577 cryoprotective agent Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 150000003673 urethanes Chemical class 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 239000007798 antifreeze agent Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- -1 ester anhydride Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
- C08L9/08—Latex
-
- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/08—Copolymers of ethene
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/022—Emulsions, e.g. oil in water
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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
- E04B1/644—Damp-proof courses
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
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- Chemical & Material Sciences (AREA)
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- Engineering & Computer Science (AREA)
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- Medicinal Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Electromagnetism (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Dispersion Chemistry (AREA)
- Paints Or Removers (AREA)
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Abstract
Description
본 발명은 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물, 이를 활용한 복합 방수도막 및 복합 방수공법에 관한 것으로서, 좀더 상세하게는, 고강도 섬유시트와 일체화할 수 있으며, 기존 수성 방수재의 얇은 도막을 보완하여 우수한 방수효과를 제공할 수 있는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물, 이를 활용한 복합 방수도막 및 복합 방수공법에 관한 것이다. The present invention relates to a crosslinked composition comprising an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion, a composite waterproof coating film using the same, and a composite waterproof method, which can be integrated with a high-strength fiber sheet, It relates to a crosslinked composition including an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion that can provide excellent waterproofing effect by supplementing a thin coating of a water-based waterproofing material, a composite waterproofing film using the same, and a composite waterproofing method.
일반적으로 옥상 방수를 하는 방법 중에 있어서, 우레탄 방수 공법은 시공할 옥상 바닥을 정리하고, 이에 프라이머를 코팅하여 바닥에 충분히 함침시켜 건조한 뒤, 바닥면에 우레탄 방수제를 발라 건조하여 일정 두께의 우레탄 도막을 형성함으로써 방수를 하는 방법이다.In general, among the methods of roof waterproofing, the urethane waterproofing method is to arrange the roof floor to be constructed, coat it with a primer, sufficiently impregnate the floor, dry it, apply a urethane waterproofing agent to the floor surface, and dry it to form a urethane coating film of a certain thickness It is a method of waterproofing by forming.
이러한 우레탄 방수 공법은 우레탄 도막의 우수한 신축성과 방수 기능을 이용하여 콘크리트의 미세한 균열까지 커버할 수 있는 이점이 있으나, 조금만 습기가 있는 상태에서 작업을 하거나 너무 낮고 높은 온도, 또는 심한 온도 변화, 옥상 콘크리트 바닥의 균열 발생이 비교적 크게 일어나면 시공된 우레탄 도막이 손상되고, 연속적으로 들뜨게 되어 방수 능력을 상실하게 되는 문제점이 있었다.This urethane waterproofing method has the advantage of being able to cover even minute cracks in the concrete by using the excellent elasticity and waterproofing function of the urethane coating, but it is difficult to work in a slightly damp state, or at too low or high temperature, or severe temperature change, rooftop concrete When cracks on the floor occur relatively large, the urethane coating film applied is damaged and continuously lifted, resulting in loss of waterproof ability.
더욱이 이러한 우레탄 방수 공법이 차량이 많이 다니는 주차장에 시공될 경우, 반복되는 하중으로 우레탄 도막의 들뜸 현상이 빨리 일어나게 되어 누수가 빨리 발생함으로써 방수 시공에 대한 수명이 더욱 짧아지는 문제점이 있었다.Moreover, when this urethane waterproofing method is installed in a parking lot where many vehicles pass, there is a problem in that the life of the waterproof construction is further shortened due to the rapid lifting of the urethane coating film due to repeated loads, which causes leaks to occur quickly.
본 발명은 고강도 섬유시트와 일체화할 수 있으며, 기존 수성 방수재의 얇은 도막을 보완하여 우수한 방수효과를 제공할 수 있는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물, 이를 활용한 복합 방수도막 및 복합 방수공법을 제공하고자 한다. The present invention is a cross-linked composition including an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion that can be integrated with a high-strength fiber sheet and can provide excellent waterproof effect by supplementing the thin coating of existing water-based waterproofing materials, using the same It is intended to provide a composite waterproofing coating and a composite waterproofing method.
한편, 본 발명에서 이루고자 하는 기술적 과제들은 이상에서 언급한 기술적 과제들로 제한되지 않으며, 언급하지 않은 또 다른 기술적 과제들은 아래의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.On the other hand, the technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems that are not mentioned will become clear to those skilled in the art from the description below. You will be able to understand.
본 발명의 일 측면에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물은 우레탄-아크릭 에멀젼 수지 5 내지 25 중량%, 에틸렌-초산비닐 공중합체 수지 55 내지 75 중량%, 안료 3 내지 10 중량%, 체질 안료 5 내지 15 중량%, 물 5 내지 15 중량% 및 잔부인 첨가제를 포함한다.According to one aspect of the present invention, the crosslinked composition comprising an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion comprises 5 to 25% by weight of urethane-acrylic emulsion resin, 55 to 75% by weight of ethylene-vinyl acetate copolymer resin, pigment 3 to 10% by weight, 5 to 15% by weight of extender pigment, 5 to 15% by weight of water and balance additives.
이 때, 상기 에틸렌-초산비닐 공중합체 수지의 유리전이온도(Tg, glass transition temperature)가 -15 내지 15℃ 일 수 있다.At this time, the glass transition temperature (Tg, glass transition temperature) of the ethylene-vinyl acetate copolymer resin may be -15 to 15 ℃.
또한, 상기 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물은, 스티렌부타디엔 고무(SBR) 라텍스 5 내지 10 중량%를 더 포함할 수 있다. In addition, the crosslinked composition including the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion may further include 5 to 10% by weight of styrene-butadiene rubber (SBR) latex.
본 발명의 일 측면에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수도막은 대상물 표면에 전술한 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하여 헝성된다.A composite waterproof coating film using a crosslinked composition comprising an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion according to an aspect of the present invention is composed of the above-described ethylene-vinyl acetate copolymer and urethane-acrylic emulsion on the surface of an object. It is formed by coating the crosslinked composition.
이 때, 상기 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수도막은, 인장강도 1.5 내지 5.0 N/㎟, 인열강도 6.9 내지 10.0 N/㎜, 신장율 500 내지 900%, 부착성능 0.7 내지 2.0 N/㎟의 물리적 특성을 갖는 것일 수 있다. At this time, the composite waterproof coating film using the crosslinked composition including the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion has a tensile strength of 1.5 to 5.0 N/mm, a tear strength of 6.9 to 10.0 N/mm, and an elongation of 500 to 900%, and adhesion performance of 0.7 to 2.0 N/mm2.
본 발명의 일 측면에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수공법은 대상물의 표면을 정리하는 단계, 상기 대상물의 표면에 부착성능 증진을 위하여 프라이머를 코팅하는 단계; 상기 프라이머 상에 전술한 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계, 상기 코팅된 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물 상에 고강도 섬유시트를 부착하여, 상기 가교된 조성물을 상기 고강도 섬유시트에 함침시키는 단계, 및 상기 부착 및 함침된 고강도 섬유시트 상에 전술한 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계를 포함한다.An ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion according to an aspect of the present invention, a composite waterproofing method using a crosslinked composition comprising the steps of arranging the surface of an object, a primer to improve adhesion to the surface of the object coating; Coating the crosslinked composition comprising the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion on the primer, on the crosslinked composition comprising the coated ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion Attaching a high-strength fiber sheet and impregnating the high-strength fiber sheet with the crosslinked composition, and crosslinking the attached and impregnated high-strength fiber sheet containing the above-described ethylene-vinyl acetate copolymer and urethane-acrylic emulsion coating the composition.
이 때, 상기 코팅된 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물 상에 고강도 섬유시트를 부착하여, 상기 가교된 조성물을 상기 고강도 섬유시트에 함침시키는 단계에서, 상기 부착 시, 부착력을 향상시키기 위한 부착 증진제로 아크릭 실란, 에폭시 실란 및 아미노 실란 중 적어도 하나를 사용할 수 있다.At this time, in the step of attaching a high-strength fiber sheet on the cross-linked composition including the coated ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion, and impregnating the high-strength fiber sheet with the cross-linked composition, the attachment , At least one of acrylic silane, epoxy silane and amino silane may be used as an adhesion enhancer for improving adhesion.
본 발명에 따르면, 고강도 섬유시트와 일체화할 수 있으며, 기존 수성 방수재의 얇은 도막을 보완하여 우수한 방수효과를 제공할 수 있는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물, 이를 활용한 복합 방수도막 및 복합 방수공법을 제공할 수 있다.According to the present invention, a crosslinked composition comprising an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion that can be integrated with a high-strength fiber sheet and can provide an excellent waterproof effect by supplementing the thin coating of an existing water-based waterproofing material, which It is possible to provide a composite waterproofing film and a composite waterproofing method.
한편, 본 발명에서 얻을 수 있는 효과는 이상에서 언급한 효과들로 제한되지 않으며, 언급하지 않은 또 다른 효과들은 아래의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.On the other hand, the effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.
도 1은 본 발명의 일 실시예에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수공법을 나타낸 순서도이다.1 is a flow chart showing a composite waterproofing method using a crosslinked composition including an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion according to an embodiment of the present invention.
이하에서는 첨부한 도면을 참조하여 본 발명의 실시예를 상세하게 설명한다. 그러나 본 발명이 이러한 실시예에 한정되는 것은 아니며 다양한 형태로 변형될 수 있음은 물론이다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it goes without saying that the present invention is not limited to these embodiments and can be modified in various forms.
도면에서는 본 발명을 명확하고 간략하게 설명하기 위하여 설명과 관계없는 부분의 도시를 생략하였으며, 명세서 전체를 통하여 동일 또는 극히 유사한 부분에 대해서는 동일한 도면 참조부호를 사용한다. 그리고 도면에서는 설명을 좀더 명확하게 하기 위하여 두께, 넓이 등을 확대 또는 축소하여 도시하였는 바, 본 발명의 두께, 넓이 등은 도면에 도시된 바에 한정되지 않는다. In the drawings, in order to clearly and concisely describe the present invention, parts not related to the description are omitted, and the same reference numerals are used for the same or extremely similar parts throughout the specification. In addition, in the drawings, the thickness, width, etc. are enlarged or reduced in order to make the description more clear, and the thickness, width, etc. of the present invention are not limited to those shown in the drawings.
그리고 명세서 전체에서 어떠한 부분이 다른 부분을 "포함"한다고 할 때, 특별히 반대되는 기재가 없는 한 다른 부분을 배제하는 것이 아니며 다른 부분을 더 포함할 수 있다. 또한, 층, 막, 영역, 판 등의 부분이 다른 부분 "위에" 있다고 할 때, 이는 다른 부분 "바로 위에" 있는 경우뿐 아니라 그 중간에 다른 부분이 위치하는 경우도 포함한다. 층, 막, 영역, 판 등의 부분이 다른 부분 "바로 위에" 있다고 할 때에는 중간에 다른 부분이 위치하지 않는 것을 의미한다. And when a certain part "includes" another part throughout the specification, it does not exclude other parts unless otherwise stated, and may further include other parts. In addition, when a part such as a layer, film, region, plate, etc. is said to be “on” another part, this includes not only the case where it is “directly on” the other part, but also the case where another part is located in the middle. When a part such as a layer, film, region, plate, etc. is said to be "directly on" another part, it means that there are no intervening parts.
에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물Crosslinked composition comprising an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion
본 발명에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물은 우레탄-아크릭 에멀젼 수지 5 내지 25 중량%와, 에틸렌-초산비닐 공중합체 수지 55 내지 75 중량%와, 안료 3 내지 10 중량%와, 체질 안료 5 내지 15 중량%, 물 5 내지 15 중량%, 그리고 잔부인 첨가제를 포함하며, - 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 주원료로 하는 1액형 탄성이 있는 상온 가교형 타입이다.A crosslinked composition comprising an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion according to the present invention comprises 5 to 25% by weight of a urethane-acrylic emulsion resin, 55 to 75% by weight of an ethylene-vinyl acetate copolymer resin, and pigment 3 to 10% by weight, 5 to 15% by weight of extender pigment, 5 to 15% by weight of water, and the balance of additives, - one-component elastic, based on ethylene-vinyl acetate copolymer and urethane-acrylic emulsion It is a room temperature crosslinking type.
먼저, 우레탄-아크릭 에멀젼 수지는 3차원 도막을 형성하는 상온 가교형 타입의 순수 아크릭 에멀젼 수지 및 우레탄 수지를 포함하는 것으로서, 본 발명에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 이용하여 방수도막을 형성 시, 방수도막의 신장율을 보완해주는 역할을 한다.First, the urethane-acrylic emulsion resin includes a room temperature crosslinking type pure acrylic emulsion resin and a urethane resin that form a three-dimensional coating film, and the ethylene-vinyl acetate copolymer according to the present invention and the urethane-crosslinked acrylic emulsion including the acrylic emulsion When forming a waterproof coating film using the composition, it serves to supplement the elongation rate of the waterproof coating film.
상온가교 특성의 우레탄-아크릭 에멀젼 수지는 상온가교형 타입으로서 순수 아크릴타입의 상온가교형 에멀젼 수지와 우레탄 수지의 2가지 가교성분 중 1개의 가교성분을 분자 내에 존재하게 하고, 또 다른 성분을 입자의 표면 혹은 수용성 성분 중에 존재하게 함으로써, 수지 전체가 가교되어 강인한 3차원구조 도막을 형성하는 것을 특징으로 한 우레탄-아크릴 타입의 상온가교형 공중합체이다.Urethane-acrylic emulsion resin with room temperature crosslinking characteristics is a room temperature crosslinking type, and one of the two crosslinking components of pure acrylic type room temperature crosslinking emulsion resin and urethane resin is present in the molecule, and the other component is It is a urethane-acrylic type normal temperature crosslinking type copolymer characterized in that the entire resin is crosslinked to form a tough three-dimensional structural coating film by being present on the surface or in a water-soluble component.
상온 가교 시스템의 대표적인 예는 카르복실산기-카본이미드기 가교시스템, 에폭시기-아미노기 가교시스템, 카르복실기-카본히드라진 가교시스템, 자기경화형 실록산 시스템 및 하프에스터안하이드라이드기-에폭시기 가교시스템 등이 있다.Representative examples of the room temperature crosslinking system include a carboxylic acid group-carbonimide group crosslinking system, an epoxy group-amino group crosslinking system, a carboxyl group-carbonhydrazine crosslinking system, a self-curing siloxane system, and a half ester anhydride group-epoxy group crosslinking system.
또한, 순수 아크릴 타입의 상온 가교형 아크릭 에멀젼수지에 적용되는 물질로는 아크릴산 에스테르, 메타아크릴산 에스테르 등을 들 수 있다. 이들은 단독 또는 둘 이상을 혼합하여 사용할 수 있다.In addition, materials applied to the room temperature crosslinking type acrylic emulsion resin of pure acrylic type include acrylic acid esters, methacrylic acid esters, and the like. These may be used alone or in combination of two or more.
본 발명에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물에서 우레탄-아크릭 에멀젼 수지는 5~25중량% 포함되는 것이 바람직하며, 10~20중량% 포함되는 것이 보다 바람직하다. 우레탄-아크릭 에멀젼 수지의 함량이 5중량% 미만인 경우에는 신장율이 다소 떨어질 수 있으며, 우레탄-아크릭 에멀젼 수지의 함량이 25중량%를 초과하는 경우에는 Tacky 등의 도막결함이 발생하는 문제점이 있다.In the crosslinked composition comprising the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion according to the present invention, the urethane-acrylic emulsion resin is preferably included in an amount of 5 to 25% by weight, more preferably 10 to 20% by weight. . When the content of the urethane-acrylic emulsion resin is less than 5% by weight, the elongation rate may be slightly lowered, and when the content of the urethane-acrylic emulsion resin exceeds 25% by weight, there is a problem in that coating defects such as Tacky occur.
에틸렌-초산비닐 공중합체 수지는 에틸렌과 비닐 아세테이트를 공중합체 시킨 소재로서, 우수한 부착력, 방수성, 내수성, 작업성, 도막의 유연성, 신장율 및 탄성을 개선하는 기능을 한다. 특히, 고유의 가소성으로 인해 세라믹 성분으로는 나타낼 수 없는 가소성을 부여하여 인장강도, 인열강도 및 내구성을 향상시키는 역할을 한다.Ethylene-vinyl acetate copolymer resin is a material made by copolymerizing ethylene and vinyl acetate, and functions to improve excellent adhesion, waterproofness, water resistance, workability, flexibility, elongation and elasticity of a coating film. In particular, due to its inherent plasticity, it serves to improve tensile strength, tear strength and durability by imparting plasticity that cannot be exhibited by ceramic components.
종래, 에틸렌-초산비닐 공중합체 수지를 사용한 경우 강도는 우수하지만, 신장율이 부족해 저온에서 도막의 크랙이 발생하는 경우가 있었는데, 이를 보완하기 위하여 본 발명에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물에서는 유리전이온도(Tg, glass transition temperature)가 낮은 에틸렌-초산비닐 공중합체 수지를 사용하고, 이와 더불어 우레탄-아크릭 에멀젼 수지를 첨가함으로써 도막의 연질화를 통해 크랙을 보완하고, 후속 도장재(상도)와의 부착력을 개선하도록 한다.Conventionally, when an ethylene-vinyl acetate copolymer resin is used, the strength is excellent, but the elongation rate is insufficient, so that cracks in the coating film may occur at low temperatures. In order to compensate for this, ethylene-vinyl acetate copolymer and urethane-acrylic In the crosslinked composition including the emulsion, an ethylene-vinyl acetate copolymer resin having a low glass transition temperature (Tg) is used, and a urethane-acrylic emulsion resin is added to compensate for cracks through softening of the coating film. and improve the adhesion with the subsequent coating material (top coat).
구체적으로, 에틸렌-초산비닐 공중합체 수지의 유리전이온도는 -15~15℃의 범위 내인 것이 보다 바람직하다.Specifically, the glass transition temperature of the ethylene-vinyl acetate copolymer resin is more preferably within the range of -15 to 15°C.
본 발명에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물에서 에틸렌-초산비닐 공중합체는 55~75중량% 포함되는 것이 바람직하며, 60~70중량% 포함되는 것이 보다 바람직하다. 에틸렌-초산비닐 공중합체의 함량이 55중량% 미만인 경우에는 성능 개선효과가 미흡하며, 에틸렌-초산비닐 공중합체의 함량이 75중량%를 초과하는 경우에는 내구성능은 개선되나 작업성이 저하되기 쉬운 문제점이 있다.In the crosslinked composition comprising the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion according to the present invention, the ethylene-vinyl acetate copolymer is preferably contained in an amount of 55 to 75% by weight, more preferably 60 to 70% by weight Do. When the content of ethylene-vinyl acetate copolymer is less than 55% by weight, the performance improvement effect is insufficient, and when the content of ethylene-vinyl acetate copolymer exceeds 75% by weight, durability is improved, but workability is easily deteriorated. There is a problem.
안료는 3~10중량% 포함되는 것이 바람직하며, 5~10중량% 포함되는 것이 보다 바람직하다.The pigment is preferably contained in an amount of 3 to 10% by weight, more preferably 5 to 10% by weight.
예컨대, 안료는 CaCO3, BaSO4 등이 사용될 수 있다.For example, CaCO 3 , BaSO 4 and the like may be used as the pigment.
체질 안료는 5~40중량% 포함되는 것이 바람직하며, 10~30중량% 포함되는 것이 보다 바람직하다.The extender pigment is preferably contained in an amount of 5 to 40% by weight, more preferably 10 to 30% by weight.
희석 용제인 물은 5~15중량% 범위 내에서 사용될 수 있다.Water as a diluting solvent may be used within the range of 5 to 15% by weight.
또한, 첨가제는 통상에 도장용 도료에 적용되는 방부제, 동결방지제, 분산제, 소포제 증점제, 조막조제 등을 포함할 수 있으며, 전술한 우레탄-아크릭 에멀젼 수지, 에틸렌-초산비닐 공중합체 수지, 안료, 체질 안료 및 물과 함께 100중량% 이내에서 잔부의 범위로 사용될 수 있다.In addition, additives may include preservatives, antifreeze agents, dispersants, antifoam thickeners, film forming aids, etc., which are usually applied to paints for painting, and the above-mentioned urethane-acrylic emulsion resin, ethylene-vinyl acetate copolymer resin, pigment, sieving It can be used in the range of the balance within 100% by weight together with the pigment and water.
한편, 본 발명에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물은 전술한 우레탄-아크릭 에멀젼 수지, 에틸렌-초산비닐 공중합체 수지, 안료, 체질 안료, 물 및 첨가제 이외에 스티렌부타디엔 고무(SBR) 라텍스를 더 포함할 수 있다.On the other hand, the crosslinked composition comprising the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion according to the present invention is styrene in addition to the above-described urethane-acrylic emulsion resin, ethylene-vinyl acetate copolymer resin, pigment, extender pigment, water and additives Butadiene rubber (SBR) latex may be further included.
여기에서, 스티렌부타디엔 고무(SBR) 라텍스는 도막의 저온 물성(인장강도, 신장율)을 보완해주어 겨울철에도 도막의 안정성을 유지시켜주는 역할을 한다.Here, the styrene-butadiene rubber (SBR) latex supplements the low-temperature properties (tensile strength, elongation) of the coating film and serves to maintain the stability of the coating film even in winter.
스티렌부타디엔 고무(SBR) 라텍스는 5~10중량% 포함되는 것이 바람직하며, 7~10중량% 포함되는 것이 보다 바람직하다.Styrene butadiene rubber (SBR) latex is preferably contained in an amount of 5 to 10% by weight, more preferably 7 to 10% by weight.
상기한 바와 같은 구성을 갖는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용하여 형성된 복합 방수도막은 KS F-3211 아크릴 고무계 기준에 부합하여 물리적 물성이 우수한 동시에 우수한 인장강도를 갖는 효과가 있다. 구체적으로, 상기 에너지 절감형 중도 방수도막은 인장강도 1.5~5.0 N/㎟, 인열강도 6.9~10 N/㎜, 신장율 500~900%, 부착성능 0.7~2.0 N/㎟의 물리적 특성을 갖게 된다.The composite waterproof coating film formed by utilizing a crosslinked composition including an ethylene-vinyl acetate copolymer having the above configuration and a urethane-acrylic emulsion meets the KS F-3211 acrylic rubber standard and has excellent physical properties and excellent tensile strength has the effect of Specifically, the energy-saving intermediate waterproof coating film has physical properties of tensile strength of 1.5 to 5.0 N/mm2, tear strength of 6.9 to 10 N/mm, elongation of 500 to 900%, and adhesion performance of 0.7 to 2.0 N/mm2. .
에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수공법Composite waterproofing method using cross-linked composition including ethylene-vinyl acetate copolymer and urethane-acrylic emulsion
도 1은 본 발명의 일 실시예에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수공법을 나타낸 순서도이다.1 is a flow chart showing a composite waterproofing method using a crosslinked composition including an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion according to an embodiment of the present invention.
도 1을 참조하면, 본 발명의 일 실시예에 따른 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수공법은 크게 대상물의 표면을 정리하는 단계(S110)와, 상기 대상물의 표면에 부착성능 증진을 위하여 프라이머를 코팅하는 단계(S120)와, 상기 프라이머 상에 전술한 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계(S130)와, 상기 코팅된 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물 상에 고강도 섬유시트를 부착하여, 상기 가교된 조성물을 상기 고강도 섬유시트에 함침시키는 단계(S140), 그리고 상기 상기 부착 및 함침된 고강도 섬유시트 상에 전술한 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계(S150)를 수행함으로써 이루어진다. Referring to Figure 1, the composite waterproofing method using a crosslinked composition including an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion according to an embodiment of the present invention largely includes the steps of arranging the surface of an object (S110) and , Coating the surface of the object with a primer to improve adhesion (S120), and coating the primer with a crosslinked composition including the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion (S130) ), attaching a high-strength fiber sheet on the cross-linked composition including the coated ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion, and impregnating the high-strength fiber sheet with the cross-linked composition (S140), and It is made by performing a step (S150) of coating a crosslinked composition including the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion described above on the attached and impregnated high-strength fiber sheet.
이 때, 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물에 구체적인 설명은 위에서 상세히 설명하였으므로 중복을 피하기 위해 생략하도록 한다.At this time, since the detailed description of the crosslinked composition including the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion has been described in detail above, it will be omitted to avoid redundancy.
먼저, 대상물의 표면을 정리하는 단계(S110)는 대상물의 표면에 존재하는 이물질을 제거하는 단계(S111)와, 크랙 및 보수 보강이 필요한 부분을 보수하는 단계(S112)를 포함할 수 있다.First, the step of arranging the surface of the object (S110) may include the step of removing foreign substances present on the surface of the object (S111), and the step of repairing cracks and parts requiring repair and reinforcement (S112).
상기 대상물의 표면에 부착성능 증진을 위하여 프라이머를 코팅하는 단계(S120)는 표면 처리한 대상물(콘크리트 피착면)에 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물의 부착력 향상을 위하여 적용될 수 있으며, 프라이머는 우레탄 프라이머, 아스팔트 프라이머, 에폭시 프라이머, 수용성 에폭시 프라이머 및 수성 아크릴프라이머로 이루어진 군에서 선택된 적어도 하나일 수 있다.Coating the primer on the surface of the object to improve adhesion (S120) improves the adhesion of the crosslinked composition containing an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion to the surface-treated object (concrete adhered surface) The primer may be at least one selected from the group consisting of a urethane primer, an asphalt primer, an epoxy primer, a water-soluble epoxy primer, and a water-based acrylic primer.
상기 프라이머 상에 전술한 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계(S130)에서, 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물의 코팅은 롤러, 스크래핑 등의 도장 방법을 수행하여 이루어질 수 있다.In the step of coating the crosslinked composition comprising the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion on the primer (S130), the crosslinked composition comprising the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion Coating may be performed by performing a painting method such as roller or scraping.
상기 코팅된 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물 상에 고강도 섬유시트를 부착하여, 상기 가교된 조성물을 상기 고강도 섬유시트에 함침시키는 단계(S140)에서는 종래 수성 도료와 소지와의 부착력이 약해, 일정시간 경과 후 박리가 되는 문제점을 해결하기 위하여, 아크릭 실란, 에폭시 실란, 아미노 실란 등과 같은 부착 증진제를 사용하여 고강도 섬유시트와의 부착력을 개선하도록 한다.Attaching a high-strength fiber sheet on the crosslinked composition containing the coated ethylene-vinyl acetate copolymer and urethane-acrylic emulsion, and impregnating the high-strength fiber sheet with the crosslinked composition (S140), the conventional water-based paint and In order to solve the problem of weak adhesion to the substrate and peeling after a certain period of time, adhesion promoters such as acrylic silane, epoxy silane, and amino silane are used to improve adhesion to the high-strength fiber sheet.
상기 부착 및 함침된 고강도 섬유시트 상에 전술한 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계(S150)는 수 회, 즉, 2~3회 거듭 반복하여 수행될 수 있으며, 전술한 과정을 통해 형성된 도막의 내구성 증대를 위한 마감 처리로서 수행될 수 있다.The step of coating the crosslinked composition including the ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion on the attached and impregnated high-strength fiber sheet (S150) is repeated several times, that is, 2 to 3 times It can be, and it can be performed as a finishing treatment for increasing the durability of the coating film formed through the above process.
이를 통해, 고강도 섬유시트와 일체화될 수 있으며, 다층 구조의 우수한 복합 방수층을 형성할 수 있게 된다.Through this, it can be integrated with the high-strength fiber sheet, and it is possible to form an excellent composite waterproof layer having a multi-layer structure.
이하, 본 발명을 실시예 및 비교예를 통하여 더욱 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail through Examples and Comparative Examples.
실시예 1Example 1
대상물의 표면을 정리하고, 프라이머를 코팅한 후, [표 1]에 나타낸 방수도료 조성물을 코팅하여 방수도막을 형성하였다.After arranging the surface of the object and coating the primer, the waterproof coating composition shown in [Table 1] was coated to form a waterproof coating film.
(-15℃ ≤ Tg ≤ 15℃)Ethylene-vinyl acetate copolymer resin
(-15℃ ≤ Tg ≤ 15℃)
그리고, 상기 방수도막 상에 부착 증진제인 실란을 이용하여 고강도 섬유시트를 부착한 후, 20℃에서 1분간 함침시켰다.And, after attaching a high-strength fiber sheet on the waterproof coating film using silane as an adhesion promoter, it was impregnated at 20° C. for 1 minute.
또한, 상기 부착 및 함침된 고강도 섬유시트 상에 [표 1]에 나타낸 방수도료 조성물을 재차 2회 코팅하여 방수도막을 형성하였다.In addition, the waterproof coating composition shown in [Table 1] was coated twice again on the attached and impregnated high-strength fiber sheet to form a waterproof coating film.
비교예 1Comparative Example 1
대상물의 표면을 정리하고, 프라이머를 코팅한 후, [표 2]에 나타낸 방수도료 조성물을 코팅하여 방수도막을 형성하였다.After arranging the surface of the object and coating the primer, the waterproof coating composition shown in [Table 2] was coated to form a waterproof coating film.
(Tg < -15℃ 또는 Tg > 15℃)Ethylene-vinyl acetate copolymer resin
(Tg < -15℃ or Tg > 15℃)
실험예Experimental Example
실시예 1 및 비교예 1에서 각각 형성된 방수도막의 건조 두께를 0.9~1.1㎜로 도장하여 20℃에서 5일 동안 건조시킨 다음, 다시 40±2℃에서 48시간 후 20℃에서 4시간 건조시킨 다음 하기의 방법으로 방수 성능을 파악하기 위하여 물성을 측정하고 결과를 측정하여 [표 3]에 나타내었다.The waterproof coating film formed in Example 1 and Comparative Example 1 was coated with a dry thickness of 0.9 to 1.1 mm, dried at 20 ° C for 5 days, then dried at 40 ± 2 ° C for 48 hours, then dried at 20 ° C for 4 hours, In order to understand the waterproof performance by the following method, the physical properties were measured and the results were measured and shown in [Table 3].
무처리Adhesion performance (N/㎟)
untreated
냉온반복 처리 후Adhesion performance (N/㎟)
After repeated heat and cold treatment
[표 3]을 참조하면, 실시예 1과 같이 적절한 Tg 특성, 즉, Tg가 -15~15℃ 인 에틸렌-초산비닐 공중합체 수지와 부착증진제를 적용할 때, 그렇지 않은 비교예 1에 비하여 방수재의 성능(인장강도, 신장율, 인열강도) 및 부착성능이 향상되는 것을 확인할 수 있다.Referring to [Table 3], when an appropriate Tg characteristic, that is, Tg of -15 to 15 ℃ ethylene-vinyl acetate copolymer resin and an adhesion promoter are applied as in Example 1, compared to Comparative Example 1, which is not a waterproof material It can be seen that the performance (tensile strength, elongation, tear strength) and adhesion performance are improved.
상술한 바에 따른 특징, 구조, 효과 등은 본 발명의 적어도 하나의 실시예에 포함되며, 반드시 하나의 실시예에만 한정되는 것은 아니다. 나아가, 각 실시예에서 예시된 특징, 구조, 효과 등은 실시예들이 속하는 분야의 통상의 지식을 가지는 자에 의하여 다른 실시예들에 대해서도 조합 또는 변형되어 실시 가능하다. 따라서 이러한 조합과 변형에 관계된 내용들은 본 발명의 범위에 포함되는 것으로 해석되어야 할 것이다.Features, structures, effects, etc. according to the above are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified with respect to other embodiments by those skilled in the art in the field to which the embodiments belong. Therefore, contents related to these combinations and variations should be construed as being included in the scope of the present invention.
Claims (9)
상기 대상물의 표면에 부착성능 증진을 위하여 프라이머를 코팅하는 단계;
상기 프라이머 상에 우레탄-아크릭 에멀젼 수지 5 내지 25 중량%, 유리전이온도(Tg, glass transition temperature)가 -15 내지 15℃ 인 에틸렌-초산비닐 공중합체 수지 55 내지 75 중량%, 스티렌부타디엔 고무(SBR) 라텍스 5 내지 10 중량%, 안료 3 내지 10 중량%, 체질 안료 5 내지 15 중량%, 물 5 내지 15 중량%, 및 잔부인 첨가제를 포함하는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계;
상기 코팅된 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물 상에 고강도 섬유시트를 부착하여, 상기 가교된 조성물을 상기 고강도 섬유시트에 함침시키는 단계; 및
상기 부착 및 함침된 고강도 섬유시트 상에 우레탄-아크릭 에멀젼 수지 5 내지 25 중량%, 유리전이온도(Tg, glass transition temperature)가 -15 내지 15℃ 인 에틸렌-초산비닐 공중합체 수지 55 내지 75 중량%, 스티렌부타디엔 고무(SBR) 라텍스 5 내지 10 중량%, 안료 3 내지 10 중량%, 체질 안료 5 내지 15 중량%, 물 5 내지 15 중량%, 및 잔부인 첨가제를 포함하는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계;를 포함하되,
상기 코팅된 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물 상에 고강도 섬유시트를 부착하여, 상기 가교된 조성물을 상기 고강도 섬유시트에 함침시키는 단계;에서,
상기 부착 시, 부착력을 향상시키기 위한 부착 증진제로 아크릭 실란, 에폭시 실란 및 아미노 실란 중 적어도 하나를 사용하고,
상기 부착 및 함침된 고강도 섬유시트 상에 우레탄-아크릭 에멀젼 수지 5 내지 25 중량%, 유리전이온도(Tg, glass transition temperature)가 -15 내지 15℃ 인 에틸렌-초산비닐 공중합체 수지 55 내지 75 중량%, 스티렌부타디엔 고무(SBR) 라텍스 5 내지 10 중량%, 안료 3 내지 10 중량%, 체질 안료 5 내지 15 중량%, 물 5 내지 15 중량%, 및 잔부인 첨가제를 포함하는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 코팅하는 단계;는, 2회 이상 반복 수행되는 것을 특징으로 하는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수공법.
cleaning the surface of the object;
coating the surface of the object with a primer to improve adhesion;
On the primer, 5 to 25% by weight of urethane-acrylic emulsion resin, 55 to 75% by weight of ethylene-vinyl acetate copolymer resin having a glass transition temperature (Tg, glass transition temperature) of -15 to 15 ° C, styrene butadiene rubber (SBR ) 5 to 10% by weight of latex, 3 to 10% by weight of pigment, 5 to 15% by weight of extender pigment, 5 to 15% by weight of water, and an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion containing the remainder additives coating a cross-linked composition;
attaching a high-strength fiber sheet on the cross-linked composition including the coated ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion, and impregnating the high-strength fiber sheet with the cross-linked composition; and
On the attached and impregnated high-strength fiber sheet, 5 to 25% by weight of a urethane-acrylic emulsion resin and 55 to 75% by weight of an ethylene-vinyl acetate copolymer resin having a glass transition temperature (Tg) of -15 to 15 ° C. 5 to 10% by weight of styrene-butadiene rubber (SBR) latex, 3 to 10% by weight of pigment, 5 to 15% by weight of extender pigment, 5 to 15% by weight of water, and an ethylene-vinyl acetate copolymer comprising the remainder additives, and Coating a crosslinked composition comprising a urethane-acrylic emulsion; including,
In the step of attaching a high-strength fiber sheet on the crosslinked composition containing the coated ethylene-vinyl acetate copolymer and the urethane-acrylic emulsion, and impregnating the high-strength fiber sheet with the crosslinked composition,
At the time of the attachment, at least one of acrylic silane, epoxy silane and amino silane is used as an adhesion enhancer to improve adhesion,
On the attached and impregnated high-strength fiber sheet, 5 to 25% by weight of a urethane-acrylic emulsion resin and 55 to 75% by weight of an ethylene-vinyl acetate copolymer resin having a glass transition temperature (Tg) of -15 to 15 ° C. 5 to 10% by weight of styrene-butadiene rubber (SBR) latex, 3 to 10% by weight of pigment, 5 to 15% by weight of extender pigment, 5 to 15% by weight of water, and an ethylene-vinyl acetate copolymer comprising the remainder additives, and Coating a crosslinked composition containing a urethane-acrylic emulsion; is a composite waterproofing method using a crosslinked composition containing an ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion, characterized in that it is repeated twice or more .
Ethylene-vinyl acetate copolymer according to claim 6 and crosslinked comprising urethane-acrylic emulsion, characterized in that formed according to the composite waterproofing method using the crosslinked composition comprising the ethylene-vinyl acetate copolymer and urethane-acrylic emulsion A composite waterproof coating film using a composition that has been applied.
상기 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수도막은,
인장강도 1.5 내지 5.0 N/㎟, 인열강도 6.9 내지 10.0 N/㎜, 신장율 500 내지 900%, 부착성능 0.7 내지 2.0 N/㎟의 물리적 특성을 갖는 것을 특징으로 하는 에틸렌-초산비닐 공중합체 및 우레탄-아크릭 에멀젼을 포함하는 가교된 조성물을 활용한 복합 방수도막.According to claim 8,
A composite waterproof coating film utilizing a crosslinked composition including the ethylene-vinyl acetate copolymer and a urethane-acrylic emulsion,
Ethylene-vinyl acetate copolymer and urethane, characterized by having physical properties of tensile strength of 1.5 to 5.0 N/mm2, tear strength of 6.9 to 10.0 N/mm, elongation of 500 to 900%, and adhesion performance of 0.7 to 2.0 N/mm2 -Composite waterproof coating using a cross-linked composition containing an acrylic emulsion.
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