KR101563291B1 - Paint composition mixing rubber in epoxy resin - Google Patents
Paint composition mixing rubber in epoxy resin Download PDFInfo
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- KR101563291B1 KR101563291B1 KR1020140149474A KR20140149474A KR101563291B1 KR 101563291 B1 KR101563291 B1 KR 101563291B1 KR 1020140149474 A KR1020140149474 A KR 1020140149474A KR 20140149474 A KR20140149474 A KR 20140149474A KR 101563291 B1 KR101563291 B1 KR 101563291B1
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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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
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
Abstract
Description
본 발명은 방수방식용 도료조성물에 관한 것으로, 더욱 상세하게는 방수방식용 도료조성물에 있어서, 에폭시 수지에 고무를 혼합한 에폭시 수지 혼합물 30~70중량%와, 충진제 20~60중량%와, 침강방지제 1~2중량%와, 분산제 1~2중량%와, 소포제 1~2중량%와, 착색안료 2~5중량% 및 반응성 희석제 5~15중량%를 포함하여 이루어지는 것을 특징으로 하는 에폭시수지에 고무를 혼합한 방수방식용 도료조성물 및 이를 이용한 시공방법에 관한 것이다.
More particularly, the present invention relates to a coating composition for waterproofing, which comprises 30 to 70% by weight of an epoxy resin mixture in which an epoxy resin is mixed with rubber, 20 to 60% by weight of a filler, 1 to 2% by weight of a dispersing agent, 1 to 2% by weight of a dispersing agent, 1 to 2% by weight of a defoaming agent, 2 to 5% by weight of a coloring pigment and 5 to 15% by weight of a reactive diluent. Rubber, and a construction method using the coating composition.
에폭시수지는 매우 오래전부터 제조되어 계속 사용되어온 열경화성수지로서 현재도 중요한 지위를 확보하고 있으며, 향후에도 계속 발전을 계속할 것으로 예상된다.Epoxy resin is a thermosetting resin that has been manufactured and used for a very long time, and has secured an important position now and is expected to continue to develop in the future.
그 이유는 우수한 특성과 다양성에 의하여 각 시대의 요구에 적합하게 대응 가능할 수 있었기 때문이며, 에폭시수지가 아민류의 경화제로서 경화된 경화물은 강고하고 안정된 결합으로 가교된 구조를 갖기 때문에 기계적 특성, 열적 특성, 내수성, 내약품성, 전기특성 등이 우수한 특징이 있다.The reason for this is that the epoxy resin is cured as a hardening agent for amines because it has a structure that is crosslinked by a strong and stable bond. Therefore, the mechanical properties and the thermal properties , Water resistance, chemical resistance, and electrical characteristics.
또한, 개환에 의해 발생된 수산기로 인하여 접착성이 우수하고, 배합처방이나 개질기술을 다양하게 하여 물성을 광범위하게 조절할 수 있다.Furthermore, the hydroxyl group generated by ring opening is excellent in adhesiveness, and the physical properties can be widely controlled by varying the formulation and modification techniques.
그러나 에폭시수지 도료는 열경화성수지의 특성상 굴곡성이 부족한 유연성의 문제가 있어서 도막에 크랙이나 부풀어 오르는 등의 내구성 문제가 다수 발생하여 도막의 수명이 짧아지고, 특히 외부 노출 콘크리트 구조물에 에폭시 수지 도료를 적용할 경우 온도에 따른 콘크리트의 팽창, 수축 등의 거동균열에 대한 저항성이 취약하여 콘크리트 구조물, 시멘트 몰탈 등의 외부 마감 공사에 적용이 어려운 점이 발생한다. However, since the epoxy resin coating material has a problem of flexibility due to insufficient flexibility due to the nature of the thermosetting resin, there are many durability problems such as cracking and swelling of the coating film, and the life time of the coating film is shortened. Especially, epoxy resin coating is applied to the exposed concrete structure The resistance to cracks such as expansion and shrinkage of concrete due to temperature is weak, which makes it difficult to apply to exterior finishing work such as concrete structure and cement mortar.
또한 에폭시수지 도료의 물성향상을 위하여 첨가시킨 각종 첨가제가 휘발 또는 용출되어 식수저수조에 사용된 도막의 경우에 식수를 오염시키는 요인이 되고 있는 실정이다.In addition, in order to improve the physical properties of the epoxy resin paint, various added additives are volatilized or eluted, which is a cause of contamination of drinking water in the case of a coating film used in a drinking water storage tank.
또한, 에폭시수지 도료는 분자쇄 내의 이중결합으로 인하여 태양의 자외선을 장기간 받을 경우에 도막의 표면이 황변과 함께 백화현상이 발생하여 외관과 도막의 수명에 나쁜 영향을 주고 있다.
In addition, the epoxy resin coating has a bad influence on the appearance and the lifetime of the coating film due to the whitening phenomenon on the surface of the coating film due to the yellowing due to the double bond in the molecular chain for a long period of receiving the ultraviolet rays of the sun.
본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로, 콘크리트 구조물의 거동균열(팽창, 수축 및 진동에 따른 균열)에 대한 저항성이 우수하고, 콘크리트 모체와의 접착력이 우수하며, 방수 및 방식성능이 우수하고, 콘크리트의 중성화 방지 성능이 우수하며, 내구성, 내수성, 내약품성, 내오염성이 우수한 에폭시수지에 고무를 혼합한 방수방식용 도료조성물 및 이를 이용한 시공방법을 제공하는데 그 목적이 있다.
Disclosure of the Invention The present invention has been made to overcome the above-mentioned problems, and its object is to provide a concrete structure which is excellent in resistance to cracks (cracks due to expansion, shrinkage and vibration), excellent in adhesion to a concrete matrix, The present invention also provides a coating composition for a waterproofing system, which is excellent in durability, water resistance, chemical resistance and stain resistance, and which is obtained by mixing rubber with rubber.
상기와 같은 목적을 위하여 본 발명은 방수방식용 도료조성물에 있어서, 에폭시수지 혼합물 30~70중량%와, 충진제 20~60중량%와, 침강방지제 1~2중량%와, 분산제 1~2중량%와, 소포제 1~2중량%와, 착색안료 2~5중량% 및 반응성 희석제 5~15중량%를 포함하여 이루어지며, 상기 에폭시수지 혼합물은 140~170℃인 액상의 에폭시수지 100중량부에 대하여, 젤 타입의 고무 5~15중량부를 혼합한 후 3,000~7,000rpm으로 4~5시간 고속교반하여 이루어지되, 상기 고무는 아크릴로니트릴 부타디엔 고무(Acrylonitrile Butadiene Rubber, NBR), 부타디엔 고무(Butadiene Rubber, BR) 및 스티렌부타디엔고무(Styrene Butadiene Rubber, SBR) 중에서 선택된 하나인 것을 특징으로 한다.In order to achieve the above object, the present invention provides a coating composition for waterproofing, which comprises 30 to 70% by weight of an epoxy resin mixture, 20 to 60% by weight of a filler, 1 to 2% by weight of a sedimentation inhibitor, 1 to 2% , 1 to 2% by weight of an antifoaming agent, 2 to 5% by weight of a color pigment and 5 to 15% by weight of a reactive diluent, wherein the epoxy resin mixture comprises 100 parts by weight of a liquid epoxy resin And 5 to 15 parts by weight of a gel-type rubber are mixed and then stirred at 3,000 to 7,000 rpm for 4 to 5 hours at a high speed. The rubber is prepared by mixing acrylonitrile butadiene rubber (NBR), butadiene rubber BR) and styrene butadiene rubber (SBR).
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또한, 본 발명에서 상기 반응성 희석제는 지방성 글라이시딜 에테르(Aliphatic glycidyl ether)형태의 2관능성 에폭시기인 것을 특징으로 한다. Also, in the present invention, the reactive diluent is a bifunctional epoxy group in the form of an aliphatic glycidyl ether.
또한, 본 발명에서 상기 충진제는 실리카, 탄산칼슘, 클레이, 탈크, 마그네슘 실리케이트 및 마이카로 이루어진 군에서 선택된 하나 이상인 것을 특징으로 한다.
In the present invention, the filler is at least one selected from the group consisting of silica, calcium carbonate, clay, talc, magnesium silicate and mica.
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상기와 같이 이루어지는 본 발명은 콘크리트 구조물의 거동균열(팽창, 수축 및 진동에 따른 균열)에 대한 저항성이 우수하고, 콘크리트 모체와의 접착력이 우수하며, 방수 및 방식성능이 우수하고, 콘크리트의 중성화 방지 성능이 우수하며, 내구성, 내수성, 내약품성, 내오염성이 우수한 장점이 있다.
The present invention as described above is excellent in resistance to the behavior cracks (cracks due to expansion, shrinkage and vibration) of the concrete structure, excellent adhesion to the concrete matrix, excellent waterproofing and performance, and prevention of neutralization of concrete It is excellent in performance, and has advantages of excellent durability, water resistance, chemical resistance and stain resistance.
이하, 본 발명에 따른 에폭시수지 혼합물을 이용한 방수방식용 도료조성물 및 이를 이용한 시공방법에 대하여 더욱 상세하게 설명하도록 한다. Hereinafter, a coating composition for a waterproofing method using the epoxy resin mixture according to the present invention and a method of using the same will be described in detail.
본 발명은 에폭시 수지에 고무를 혼합한 에폭시 수지 혼합물 30~70중량%와, 충진제 20~60중량%와, 침강방지제 1~2중량%와, 분산제 1~2중량%와, 소포제 1~2중량%와, 착색안료 2~5중량% 및 반응성 희석제 5~15중량%를 포함하여 이루어지는 것을 특징으로 하는 에폭시수지 혼합물을 이용한 방수방식용 도료 조성물에 관한 것이다.The present invention relates to an epoxy resin composition comprising 30 to 70% by weight of an epoxy resin mixture in which an epoxy resin is mixed with a rubber, 20 to 60% by weight of a filler, 1 to 2% by weight of an anti-settling agent, 1 to 2% by weight of a dispersant, % Of a coloring pigment, 2 to 5 wt% of a color pigment, and 5 to 15 wt% of a reactive diluent.
본 발명에 따른 도료 조성물에 포함되는 성분들을 살펴보면 다음과 같다. The components included in the coating composition according to the present invention are as follows.
상기 에폭시 수지 혼합물은 에폭시 수지와 고무를 혼합한 것으로, 본 발명에서는 상기 고무로서 아크릴로니트릴 부타디엔 고무(Acrylonitrile Butadiene Rubber, 이하 NBR), 부타디엔 고무(Butadiene Rubber, 이하 BR) 또는 스티렌부타디엔고무(Styrene Butadiene Rubber, SBR) 중에서 하나를 선택한다. The epoxy resin mixture is a mixture of an epoxy resin and rubber. In the present invention, acrylonitrile butadiene rubber (NBR), butadiene rubber (BR) or styrene butadiene rubber Rubber, SBR).
상기 에폭시 수지와 고무를 혼합할 때에는 혼합이 용이하도록 액상의 에폭시 수지에 고무(젤 타입)를 혼합하는 것이 좋다.
When mixing the epoxy resin and rubber, it is preferable to mix rubber (gel type) in a liquid epoxy resin so as to facilitate mixing.
먼저, 상기 아크릴로니트릴 부타디엔 고무(Acrylonitrile Butadiene Rubber, 이하 NBR)는 하기 화학식 1의 구조를 갖는다. First, the acrylonitrile butadiene rubber (hereinafter referred to as NBR) has a structure represented by the following formula (1).
상기 아크릴로니트릴 부타디엔 고무(NBR)는 내한성, 극성고분자와 상용성이 좋고 내유성이 우수한 장점이 있다.
The acrylonitrile butadiene rubber (NBR) has good cold resistance, compatibility with polar polymers, and excellent oil resistance.
다음으로, 상기 부타디엔 고무(BR)는 하기 화학식 2의 구조를 갖는다. Next, the butadiene rubber (BR) has a structure represented by the following formula (2).
상기 부타디엔 고무(BR)는 내마모성, 내굴곡성, 반발탄성, 내한성이 우수한 장점이 있다.
The butadiene rubber (BR) is advantageous in abrasion resistance, bending resistance, rebound resilience and cold resistance.
다음으로, 상기 스티렌부타디엔고무(SBR)는 하기 화학식 3의 구조를 갖는다. Next, the styrene butadiene rubber (SBR) has a structure represented by the following formula (3).
상기 스티렌부타디엔고무(SBR)는 내열성, 내노화성, 그을림(scorch)에 대한 안정성이 뛰어나다. The styrene butadiene rubber (SBR) is excellent in heat resistance, aging resistance, and stability against scorch.
본 발명의 일실시예에 따른 에폭시 수지 혼합물은 140~170℃의 에폭시 수지 100중량부에 대하여 고무 5~15중량부를 혼합한 다음 3,000~7,000rpm으로 4~5시간 고속교반하여 형성한다. 경화시에는 에폭시 분자간에 고무가 고르게 분포되어 있으므로 장기간 경과 후에도 처음의 탄성을 그대로 보유하여 물성을 저하시키지 않는다. 이때, 상기 에폭시 당량은 184 내지 190 정도인 것이 물성적인 측면에서 바람직하다. 본 발명에서 고무변성 에폭시수지 혼합물(CTBN)을 사용하지 않는 것은, 종래의 CTBN 결합 방식에 의한 탄성 부여 방석은 2~3개월이 경과하면 탄성도가 현저하게 저하될 수 있기 때문이다. 한편, 상기 고무가 에폭시 수지 100중량부에 대하여 5중량부 미만으로 혼합되면 탄성력을 확보할 수 없어 고무를 혼합한 효과가 나타나지 않으며, 15중량부를 초과할 경우 고유의 에폭시 수지의 인장, 압축, 굴곡강도 등의 효과가 현저히 저하된다. The epoxy resin mixture according to an embodiment of the present invention is prepared by mixing 5 to 15 parts by weight of rubber with 100 parts by weight of an epoxy resin at 140 to 170 DEG C, followed by stirring at 3,000 to 7,000 rpm for 4 to 5 hours at a high speed. Since the rubber is evenly distributed between the epoxy molecules during curing, the elasticity is retained as it is even after a long period of time and does not deteriorate the physical properties. At this time, the epoxy equivalent is preferably about 184 to 190 in terms of physical properties. The reason why the rubber-modified epoxy resin mixture (CTBN) is not used in the present invention is that the elasticity imparted by the conventional CTBN bonding method can remarkably decrease after 2 to 3 months have elapsed. On the other hand, when the rubber is mixed with less than 5 parts by weight based on 100 parts by weight of the epoxy resin, the elasticity can not be secured and the effect of mixing the rubber is not exhibited. When the rubber is used in an amount exceeding 15 parts by weight, The effect such as strength is remarkably deteriorated.
또한, 본 발명은 전체 중량에 대하여 상기 에폭시 수지 혼합물 30~70중량%를 혼합하는데, 이때 30중량%이하로 혼합하게 되면 도막의 잠재적인 유연성 향상 역할은 가능하나 콘크리트 저수조에 사용된 경우 콘크리트의 반복적이고 주기적인 수축과 팽창에 대한 거동대응성이 발휘되기가 어렵다. 반대로 70중량% 이상 혼합되면 거동대응성은 우수하나 도막의 강인함이 발휘되기가 어렵다. In addition, the present invention mixes 30 to 70% by weight of the epoxy resin mixture with respect to the total weight. If the mixing ratio is 30% by weight or less, the potential flexibility of the coating can be improved. However, when used in a concrete water tank, It is difficult to exhibit dynamic and periodic response to the contraction and expansion. On the contrary, when the content is more than 70% by weight, the ability to cope with the behavior is excellent, but it is difficult to exhibit the strength of the coating film.
다음으로, 상기 충진제는 실리카, 탄산칼슘, 클레이, 탈크, 마그네슘 실리케이트, 또는 마이카로 이루어진 군에서 하나 이상을 선택할 수 있으며, 평균입경이 325mesh 기준으로 45㎛±10㎛인 것이 바람직하다.Next, the filler may be selected from the group consisting of silica, calcium carbonate, clay, talc, magnesium silicate, or mica, and preferably has an average particle size of 45 μm ± 10 μm on an average particle size of 325 mesh.
상기 충진제는 전체 중량에 대하여 20~60중량%가 혼합되며, 도막내의 기공을 충전시키고 도막에 살오름성, 내구력 및 경도와 같은 기계적 성질을 증대시킨다. The filler is mixed in an amount of 20 to 60% by weight based on the total weight, filling the pores in the coating film, and increasing the mechanical properties such as scratch resistance, durability and hardness of the coating film.
상기 범위 미만으로 포함시 적절한 색상 및 기계적 물성 보완의 효과를 나타낼 수 없고, 상기 범위를 초과하여 포함되는 경우 에폭시수지와 고무의 특성 발현이 어렵고 일부 침전이 발생할 우려가 있다. If it is contained in the above range, it can not exhibit the effect of complementing appropriate color and mechanical properties. If it exceeds the above range, it is difficult to manifest the properties of epoxy resin and rubber, and there is a possibility that some precipitate may occur.
상기 침강방지제는 전체 중량에 대하여 1~2중량%가 혼합되는 것으로, 첨가되는 안료의 침강을 방지하거나 또는 침적하여도 무르게 하여 재분산성을 높이며, 도장시 흐름과 맺힘을 방지하고 도막두께를 두껍게 조절한다.The anti-settling agent is mixed in an amount of 1 to 2% by weight based on the total weight of the pigment. The pigment prevents the settling of the added pigment or improves the redispersibility by immersing the pigment in the pigment. do.
상기 분산제는 전체 중량에 대하여 1~2중량%가 혼합되는 것으로, 안료입자를 수지 중에 균일하게 분산시켜 착색력(coloring), 은폐력(hiding power), 도막의 평활성(leveling), 색분리 및 색의 얼룩을 방지한다.The dispersant is mixed in an amount of 1 to 2% by weight based on the total weight of the pigment. The pigment particles are uniformly dispersed in the resin to impart coloring, hiding power, leveling of the coating film, .
상기 소포제는 전체 중량에 대하여 1~2중량%가 혼합되며, 기포 형성을 막거나 발생한 기포를 신속하게 제거한다. The antifoaming agent is mixed in an amount of 1 to 2% by weight based on the total weight of the antifoaming agent.
상기 착색안료는 전체 중량에 대하여 2~5중량%가 혼합되는 것으로, 도막에 색채(착색력)과, 은폐력(불투명성)을 부여한다. 상기 착색안료는 백색 또는 유색 안료들이 사용되는데, 백색안료는 아나타제와 루틸타입을 모두 사용할 수 있으며, 특히 백색의 내후성을 요구하는 제품에는 루릴타입의 티타늄 디옥사이드를 사용하는 것이 바람직하다. 유색 안료는 2가 이상의 금속이온을 함유하지 않으며 반응성이 없는 무기성분의 안료를 사용하는 것이 바람직하며, 산화철 계통의 무기 착색안료 또는 카본블랙 등을 사용할 수도 있다. The colored pigment is mixed in an amount of 2 to 5% by weight based on the total weight, and imparts color (tinting strength) and hiding power (opacity) to the coating film. The colored pigment may be white or colored pigments. The white pigment may be an anatase or a rutile type. In particular, a ruryl type titanium dioxide is preferably used for a product requiring a white weather resistance. It is preferable to use a pigment of an inorganic component which does not contain a bivalent or higher metal ion and has no reactivity, and an iron oxide based inorganic pigment or carbon black may be used.
상기 반응성 희석제는 전체 중량에 대하여 5~15중량%가 혼합되는 것으로, 하기 화학식 2의 구조를 갖는 지방성 글라이시딜 에테르(Aliphatic glycidyl ether)형태의 2관능성 에폭시기인 반응성 희석제로서, 에폭시 수지의 점도 감소 및 가소성을 부여한다. 또한, NBR 혼합 에폭시 수지는 상온에서 8,000cps의 다소 높은 점도이므로 작업성을 개선할 목적으로 투입된다.The reactive diluent is a reactive diluent which is a bifunctional epoxy group in the form of an aliphatic glycidyl ether having a structure represented by the following general formula (2), wherein 5 to 15% by weight of the reactive diluent is mixed with the total weight, Reduction and plasticity. In addition, the NBR mixed epoxy resin has a rather high viscosity of 8,000 cps at room temperature, and thus is added for the purpose of improving workability.
본 발명에서 상기 반응성 희석제를 지방성 글라이시딜 에테르(Aliphatic glycidyl ether)형태의 2관능성 에폭시기를 사용하는 것은 점도를 조절하여 작업이 용이하도록 작업성을 향상시키고 도료에 유연성을 부여하기 위한 것이다. In the present invention, the use of the bifunctional epoxy group in the form of an aliphatic glycidyl ether as the reactive diluent is intended to improve the workability and flexibility of the paint so as to facilitate the work by controlling the viscosity.
한편, 상기 반응성 희석제를 전체 중량에 대하여 5% 미만으로 혼합하게 되면 회석효과가 적어 작업성이 떨어지는 문제점이 있고, 15중량%를 초과하여 혼합하게 되면 고유의 에폭시 수지의 인장, 압축, 굴곡강도 등이 저하되는 문제점이 발생하게 된다. On the other hand, when the reactive diluent is mixed at less than 5% of the total weight, there is a problem that the workability is poor due to a small amount of a chelating effect. When the reactive diluent is mixed in an amount exceeding 15% by weight, tensile, compression, Is lowered.
상기와 같이 이루어지는 본 발명은 콘크리트 구조물의 거동균열(팽창, 수축 및 진동에 따른 균열)에 대한 저항성이 우수하고, 콘크리트 모체와의 접착력이 우수하며, 방수 및 방식성능이 우수하고, 콘크리트의 중성화 방지 성능(여기에서, 콘크리트 중성화란, 콘크리트의 균열 부분으로 공기, 탄산가스 또는 산성비가 콘크리트중의 수산화칼슘과 화학반응하여 서서히 탄산칼슘(CaCO3)이 되면서 콘크리트의 알칼리성을 상실하는 것임)이 우수하며, 내구성, 내수성, 내약품성, 내오염성이 우수한 장점이 있다. The present invention as described above is excellent in resistance to the behavior cracks (cracks due to expansion, shrinkage and vibration) of the concrete structure, excellent adhesion with the concrete matrix, excellent waterproofing and performance, and prevention of the neutralization of concrete Performance (Here, concrete neutralization means that cracks in concrete are chemically reacted with calcium hydroxide in concrete as air, carbon dioxide gas or acid rain ratio slowly forms calcium carbonate (CaCO 3 ) and loses the alkalinity of concrete) Durability, water resistance, chemical resistance and stain resistance.
다음으로, 본 발명에 따른 에폭시수지 혼합물을 이용한 방수방식용 도료조성물을 이용한 시공방법에 대하여 설명하면 다음과 같다.Next, a construction method using a coating composition for a waterproof system using an epoxy resin mixture according to the present invention will be described.
먼저, 본 발명은 도료 조성물을 시공하고자 하는 시공표면을 충분히 건조시키고, 시공표면의 레이턴스, 이물질, 표면의 굴곡 및 노화부분을 브러쉬 등으로 제거한다. 상기와 같은 작업을 하는 이유는 시공표면을 평탄하게 정리되도록 하여 최대한 평활한 작업면을 확보하기 위한 것으로, 이러한 평활작업에 의해 바탕면에 도료가 일정한 두께로 도포되도록 하여 일정 두께의 평활한 도막을 형성되도록 함으로써 크랙 등에 대한 저항성 및 바탕면과의 접착력을 증대시키기 위한 것이다.First, the present invention sufficiently dries the application surface to be applied with the coating composition and removes the latency, foreign matter, surface bending and aging of the application surface with a brush or the like. The reason for carrying out the above-mentioned operation is to ensure the smoothest work surface by arranging the work surface flat. By this smoothing work, the paint is applied to the base surface with a constant thickness, So as to increase resistance to cracks and the like and adhesion to the substrate.
이후, 로라 또는 붓 등을 이용하여 기포가 생기지 않도록 시공표면에 에폭시 프라이머를 도포한 다음, 상기 에폭시 프라이머가 경화되면, 본 발명에 따른 에폭시수지 혼합물을 이용한 방수방식용 도료 조성물을 도포한다. Thereafter, an epoxy primer is applied to the surface of the substrate to prevent air bubbles from being formed by using a roller or a brush, and when the epoxy primer is cured, the coating composition for a waterproofing method using the epoxy resin mixture according to the present invention is applied.
상기 도료 조성물을 도포할 때, 시공표면의 종류, 상태 또는 형상에 따라 원하는 두께로 도포될 수 있도록 도료 조성물을 반복하여 도포할 수 있으며, 예를 들어 굴곡면을 갖는 표면에 도료 조성물을 도포하고자 할 때에는 1차적으로 굴곡면에 도료 조성물을 도포한 다음 전체 표면에 2차 도포 작업을 진행할 수도 있다. When the coating composition is applied, the coating composition can be applied repeatedly so that it can be applied to a desired thickness according to the type, state or shape of the applied surface. For example, it is desired to coat the surface of the coating composition with a curved surface The coating composition may be first applied to the curved surface, and then the secondary coating may be performed on the entire surface.
상기와 같이 도료 조성물의 도포작업이 마무리 되면 시공표면을 건조하여 시공을 마무리한다.
When the application of the coating composition is completed as described above, the applied surface is dried to finish the application.
<실시예><Examples>
에폭시 수지를 160℃까지 가열한 다음, 상기 가열된 에폭시 수지 100중량부에 대하여 아크릴로니트릴 부타디엔 고무(Acrylonitrile Butadiene Rubber, NBR) 10중량부를 혼합한 다음 5000rpm으로 4시간 고속 교반하여 에폭시 수지 혼합물을 형성하였다. 10 parts by weight of acrylonitrile butadiene rubber (NBR) was mixed with 100 parts by weight of the heated epoxy resin, and the mixture was stirred at 5000 rpm for 4 hours at high speed to form an epoxy resin mixture Respectively.
이후, 상기 에폭시 수지 혼합물 60중량%와, 실리카 30중량%와, 침강방지제 1중량%와, 분산제 1중량%와, 소포제 1중량%와, 착색안료 2중량% 및 지방성 글라이시딜 에테르(Aliphatic glycidyl ether)형태의 2관능성 에폭시기 5중량%를 혼합하여 본 발명에 따른 에폭시수지에 고무를 혼합한 방수방식용 도료조성물을 조성하였다.
Thereafter, a mixture of 60 wt% of the epoxy resin mixture, 30 wt% of silica, 1 wt% of an anti-settling agent, 1 wt% of a dispersant, 1 wt% of a defoamer, 2 wt% of a coloring pigment and an aliphatic glycidyl ether ether) type bifunctional epoxy group in an amount of 5% by weight to prepare a coating composition for a waterproofing system in which an epoxy resin according to the present invention is mixed with a rubber.
Claims (6)
에폭시수지 혼합물 30~70중량%와, 충진제 20~60중량%와, 침강방지제 1~2중량%와, 분산제 1~2중량%와, 소포제 1~2중량%와, 착색안료 2~5중량% 및 반응성 희석제 5~15중량%를 포함하여 이루어지며,
상기 에폭시수지 혼합물은 140~170℃인 액상의 에폭시수지 100중량부에 대하여, 젤 타입의 고무 5~15중량부를 혼합한 후 3,000~7,000rpm으로 4~5시간 고속교반하여 이루어지되,
상기 고무는 아크릴로니트릴 부타디엔 고무(Acrylonitrile Butadiene Rubber, NBR), 부타디엔 고무(Butadiene Rubber, BR) 및 스티렌부타디엔고무(Styrene Butadiene Rubber, SBR) 중에서 선택된 하나인 것을 특징으로 하는 에폭시수지에 고무를 혼합한 방수방식용 도료조성물.
In a coating composition for waterproofing,
Wherein the antifoaming agent comprises 1 to 2% by weight of an antifoaming agent, 2 to 5% by weight of a colorant pigment, 2 to 5% by weight of an antifoaming agent, 20 to 60% And 5 to 15% by weight of a reactive diluent,
The epoxy resin mixture is prepared by mixing 5 to 15 parts by weight of a gel type rubber with 100 parts by weight of a liquid epoxy resin having a temperature of 140 to 170 ° C and stirring the mixture at 3,000 to 7,000 rpm for 4 to 5 hours,
Wherein the rubber is one selected from the group consisting of acrylonitrile butadiene rubber (NBR), butadiene rubber (BR), and styrene butadiene rubber (SBR). Coating composition for waterproofing.
The coating composition according to claim 1, wherein the reactive diluent is a bifunctional epoxy group in the form of an aliphatic glycidyl ether.
The coating composition for a waterproofing system according to claim 1, wherein the filler is at least one selected from the group consisting of silica, calcium carbonate, clay, talc, magnesium silicate and mica.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101752385B1 (en) * | 2016-02-03 | 2017-06-30 | 주식회사 세민기공 | Hardening paint for moisture surface and method of treating surface of structure applying hardening paint for moisture surface |
| KR20170092486A (en) * | 2016-02-03 | 2017-08-11 | 주식회사 세민기공 | Hardening paint for moisture surface and method of treating surface of structure applying hardening paint for moisture surface |
| WO2021125527A1 (en) * | 2019-12-19 | 2021-06-24 | 주식회사 포스코 | Surface treatment composition for vibration damping steel sheet, and vibration damping steel sheet |
| KR20220132955A (en) * | 2021-03-24 | 2022-10-04 | 주식회사씨알케이종합건설 | Waterproof Paint |
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2014
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| KR101752385B1 (en) * | 2016-02-03 | 2017-06-30 | 주식회사 세민기공 | Hardening paint for moisture surface and method of treating surface of structure applying hardening paint for moisture surface |
| WO2017135761A1 (en) * | 2016-02-03 | 2017-08-10 | 주식회사 세민기공 | Curable paint composition for wet surfaces, and method using same to treat surface of structure |
| KR20170092486A (en) * | 2016-02-03 | 2017-08-11 | 주식회사 세민기공 | Hardening paint for moisture surface and method of treating surface of structure applying hardening paint for moisture surface |
| KR102390367B1 (en) | 2016-02-03 | 2022-04-29 | 주식회사 세민기공 | Hardening paint for moisture surface and method of treating surface of structure applying hardening paint for moisture surface |
| WO2021125527A1 (en) * | 2019-12-19 | 2021-06-24 | 주식회사 포스코 | Surface treatment composition for vibration damping steel sheet, and vibration damping steel sheet |
| KR20220132955A (en) * | 2021-03-24 | 2022-10-04 | 주식회사씨알케이종합건설 | Waterproof Paint |
| KR102476618B1 (en) | 2021-03-24 | 2022-12-13 | (주)씨알케이종합건설 | Waterproof Paint |
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