KR101748832B1 - Polyurea waterproof agent improving ozone resistant and manufacturing method thereof and waterproof method using thereof - Google Patents
Polyurea waterproof agent improving ozone resistant and manufacturing method thereof and waterproof method using thereof Download PDFInfo
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- 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
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Abstract
본 발명에 의하면, 디하이드로폴리디메틸실록산 100 중량부에, 비스-(3-아세톡시프로필)폴리디메틸실록산 70~80 중량부, 폴리하이드로메틸실록산-폴리디메틸실록산 50~70 중량부, 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올 30~40 중량부, 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄 20~30 중량부 및 안료 5~8 중량부가 첨가되어 구성되는 A액과 1,5-나프탈렌디이소시아네이트 100 중량부에, 폴리메틸렌폴리페닐이소시아네이트 60~70 중량부 및 트리메틸헥사메틸렌디이소시아네이트 50~60 중량부가 첨가되어 구성되는 B액을 포함하는 것을 특징으로 하는 폴리우레아 도막 방수제가 제공된다.According to the present invention, there is provided a polyimide resin composition comprising 70 to 80 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 50 to 70 parts by weight of polyhydromethylsiloxane-polydimethylsiloxane, 1,1 30 to 40 parts by weight of isopropylidene-bis- (para-phenylene-oxy) -diethanol, 20 to 30 parts by weight of 3,3-dimethyl-4,4-diamino-dicyclohexylmethane, And 60 to 70 parts by weight of polymethylene polyphenyl isocyanate and 50 to 60 parts by weight of trimethylhexamethylene diisocyanate were added to 100 parts by weight of the liquid A and 1,5-naphthalene diisocyanate, A polyurea coating film waterproofing agent is provided.
Description
본 발명은 폴리우레아 도막 방수제, 그 제조방법 및 이를 이용한 방수공법에 관한 것으로서, 보다 상세하게는, 디하이드로폴리디메틸실록산, 비스-(3-아세톡시프로필)폴리디메틸실록산, 폴리하이드로메틸실록산-폴리디메틸실록산을 폴리머 분자 내에 도입하여 최종적으로 완결되는 폴리우레아의 내오존성을 향상시켜 물성 저하가 발생되지 않는 폴리우레아 도막 방수제, 그 제조방법 및 이를 이용한 연질/경질이 결합된 복합 방수공법에 관한 것이다. More particularly, the present invention relates to a waterproofing agent for polyurea coatings, a method for producing the same, and a waterproofing method using the same. More particularly, the present invention relates to a polyurea coating waterproofing agent, a dihydropolydimethylsiloxane, bis- (3-acetoxypropyl) polydimethylsiloxane, The present invention relates to a waterproofing agent for a polyurea film, which is obtained by introducing dimethylsiloxane into a polymer molecule to improve the ozone resistance of the finalized polyurea, thereby preventing deterioration of physical properties, a process for producing the same, and a composite waterproofing process using the same.
콘크리트 구조물의 수분에 의한 부식이나 파손 등을 방지하기 위해서는 콘크리트 구조물 표면에 방수 또는 방식 처리를 하는 것이 요구된다. 이러한 방수 처리는 일반적으로 방수용 수지를 콘크리트 구조물의 표면에 도포함으로서 이루어진다.In order to prevent corrosion or damage caused by moisture of concrete structure, it is required to waterproof or treat the surface of concrete structure. Such waterproofing treatment is generally performed by applying a waterproof resin to the surface of a concrete structure.
종래 일반적인 콘크리트 구조물 표면의 방수 공법은, 등록특허 10-1215403호 등에 개시된 바와 같이, 방수하고자 하는 구조물의 표면에 묻은 오염물을 제거하고 평탄화하는 전처리 단계와, 상기 전처리된 표면에 프라이머를 코팅하여 프라이머층을 형성하는 단계 및 상기 프라이머층 상에 폴리우레아를 도포하는 단계를 포함하여 이루어진다.A conventional waterproofing method for a concrete structure surface includes a pretreatment step of removing contaminants on the surface of a waterproofing structure and planarizing the surface of the waterproofing structure as disclosed in Japanese Patent Application No. 10-1215403 and the like, And applying polyurea on the primer layer.
이러한 폴리우레아의 분자는 보통의 경우 유연성을 크게 하는 요소와 경도를 크게 하는 요소들이 고르게 분포되어 있는 상태로 구성되어 있다.These molecules of polyurea usually consist of an element that increases the flexibility and an element that increases the hardness evenly.
일반적으로 알려진 바에 의하면, 유연성을 크게 하는 요소는 낮은 유리전이온도를 갖는 것으로 폴리에테르, 폴리에스테르, 폴리알킬디올 등으로 중량 평균분자량이 400-5000 사이일 때 유연성이 커지고, 경도를 크게 하려면 높은 Tg를 갖고 있으며 준결정성의 방향족 디이소시아네이트가 낮은 분자량의 사슬 확장자에 결합하면 경도가 커진다.It is generally known that a material having a high flexibility is a material having a low glass transition temperature. The polyether, polyester and polyalkyldiol have a high flexibility when the weight average molecular weight is between 400 and 5,000, and a high Tg And when the semi-crystalline aromatic diisocyanate is bonded to a chain extension of low molecular weight, the hardness becomes large.
일반적으로 폴리우레아는 사슬 확장자와 낮은 분자량을 갖는 디아민류와 합성되어 우레아 단위체를 만드는 것이다. 따라서 폴리우레아는 선택된 물질이나 분자량, 또는 반응되는 비율 등의 기타 다양한 요소에 의하여 그 성질이 폭 넓게 변화되어 나타난다. 즉, 그 성질이 부스러지기 쉬운 물질에서 단단한 물질 또는 부드러운 물질, 더 나아가서는 어떤 점성을 갖는 물질로 변화가 가능하다. 특히 폴리우레아의 경우에는 지방산의 아미드 에스테르 결합이 혼합된 결합을 가지므로 고온에서의 성질은 이들 폴리에스테르계와 폴리아미드계의 중간적 성질을 가지고 있다.Generally, polyureas are synthesized with diamines having chain extensions and low molecular weight to form urea units. Therefore, the polyurea exhibits a wide variety of properties depending on various factors such as the selected substance, the molecular weight, or the reacted ratio. That is, it is possible to change from a substance whose property is fragile to a substance which is hard or soft, and which is of a certain viscosity. Particularly, in the case of polyurea, since the amide ester bond of fatty acid has a mixed bond, the property at high temperature has an intermediate property between these polyester and polyamide.
폴리우레아의 합성은 부가반응과 축합반응의 두 개의 큰 영역으로 구분할 수 있다. 부가반응은 불포화 단량체가 반응 개시 단계, 전개 단계, 종결 단계에서 반응하여 일어난다. 보통 단량체들은 이중결합을 가지고 있는 간단한 분자들인데 개시단계에서 두 개의 이중결합 중 하나가 깨지면서 반응 하는데 미반응 단량체가 거의 희박할 때까지 빠르게 반응이 진행된다.The synthesis of polyurea can be divided into two large regions, an addition reaction and a condensation reaction. The addition reaction occurs when the unsaturated monomer reacts in the reaction initiation step, the development step, and the termination step. Usually, monomers are simple molecules with a double bond, which reacts rapidly in the initiation step, breaking one of the two double bonds, until the unreacted monomer is almost lean.
대부분의 경우 부가반응은 부생산물을 만들지 않고 진행된다. 축합 또는 단계적 성장 반응은 단량체들이 고분자의 사슬을 형성하기 위해 만들어진 단계에서 이중 작용기를 갖는 분자와 반응할 때 일어난다. 이는 작은 분자량을 갖는 분자들 간의 축합반응과 유사하다. 이때 작은 분자인 물이나 이산화탄소 같은 물질은 제거되기도 한다.In most cases, the addition reaction proceeds without making the byproduct. Condensation or staged growth reactions occur when monomers react with molecules with double functional groups at the stage where they were made to form chains of macromolecules. This is similar to the condensation reaction between molecules with small molecular weights. At this time, small molecules such as water and carbon dioxide are removed.
부가반응은 균일 고분자나 공중합체로 구분할 수 있는데, 공중합체의 미세한 형태는 무작위, 교차, 덩어리 형태로 나눌 수 있지만 이는 반응 조건이나 농도, 단량체의 반응성 비율 등에 따라 차이가 있다. 더군다나 최종 반응 생성물인 고분자들의 반응 후 분자량이나 분자량의 분포 등을 제어하는 것은 사슬 형태를 변화시키는 시약을 사용하여 제어하는 축합반응보다도 더 어려운 것이다. 반응성의 조절은 음이온 고분자화법에 의해 조절될 수 있고 어떤 경우에는 거의 단일 연쇄상 분포의 합성도 가능하다. 축합반응은 공중합 고분자물질을 만들 때도 사용 된다. 이중 작용기를 갖는 단량체 들은 사슬형 고분자를 만들기 위해 이용되고 삼중 이상의 작용기를 갖는 것은 삼차원적 공간에 교차 결합 고분자 망을 구성할 수도 있다.Addition reaction can be classified into homogeneous polymer or copolymer. The fine form of copolymer can be divided into random, cross, and lump form, but it differs depending on reaction conditions, concentration, reactivity ratio of monomers. Furthermore, controlling the molecular weight or the distribution of molecular weight after the reaction of the final reaction product polymer is more difficult than the condensation reaction which is controlled by using a reagent which changes the chain form. Control of the reactivity can be controlled by anionic polymerisation and in some cases it is possible to synthesize a nearly single-chain distribution. The condensation reaction is also used to make copolymeric polymer materials. The monomers having a double functional group are used to form a chain polymer, and those having three or more functional groups may constitute a crosslinked polymer network in a three-dimensional space.
폴리우레아는 관능기를 갖는 폴리옥시에테르 폴리아민 혼합물과 이소시아네이트 프리폴리머의 반응으로 형성되는 엘라스토머 특성을 갖는 고분자 물질로 아민과 이소시아네이트의 급속한 반응성 때문에, 일반적으로 상온에서 혼합하여 사용할 수 없으며 특수한 스프레이 장비를 이용하여 도장작업을 진행한다. 그리고 폴리우레아는 합성고무와 같은 엘라스토머 성질을 가지므로 콘크리트 구조물에 시공 후 공기 중 오존에 의한 화학구조의 변화로 물성이 급격히 떨어지는 문제점을 가지고 있다. Polyurea is a polymer material having an elastomeric property formed by the reaction of a polyoxyether polyamine mixture having a functional group with an isocyanate prepolymer. Because of the rapid reactivity of amines and isocyanates, polyurea can not be used in general at room temperature. Proceed with the operation. Since polyurea has an elastomeric property such as synthetic rubber, it has a problem that physical properties are rapidly deteriorated due to chemical structure change due to ozone in the air after the concrete structure is applied.
따라서 본 발명의 목적은 디하이드로폴리디메틸실록산, 비스-(3-아세톡시프로필)폴리디메틸실록산, 폴리하이드로메틸실록산-폴리디메틸실록산을 폴리머 분자 내에 도입하여 최종적으로 완결되는 폴리우레아의 내오존성을 향상시켜 물성 저하가 발생되지 않는 폴리우레아 도막 방수제, 그 제조방법 및 이를 이용한 연질/경질이 결합됩 복합 방수공법을 제공하는 것이다. It is therefore an object of the present invention to improve the ozone resistance of the finally finished polyurea by introducing dihydropolydimethylsiloxane, bis- (3-acetoxypropyl) polydimethylsiloxane, polyhydrogmethylsiloxane-polydimethylsiloxane into the polymer molecule Which does not cause deterioration of physical properties, and a process for producing the polyurea coating film, and a composite waterproofing method using the same.
한편, 본 발명의 목적은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 다른 목적들은 아래의 기재로부터 통상의 기술자에게 명확하게 이해될 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.
이를 위하여, 본 발명에 의하면, 디하이드로폴리디메틸실록산 100 중량부에, 비스-(3-아세톡시프로필)폴리디메틸실록산 70~80 중량부, 폴리하이드로메틸실록산-폴리디메틸실록산 50~70 중량부, 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올 30~40 중량부, 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄 20~30 중량부 및 안료 5~8 중량부가 첨가되어 구성되는 A액과;1,5-나프탈렌디이소시아네이트 100 중량부에, 폴리메틸렌폴리페닐이소시아네이트 60~70 중량부 및 트리메틸헥사메틸렌디이소시아네이트 50~60 중량부가 첨가되어 구성되는 B액을 포함하는 폴리우레아 도막 방수제가 제공된다.According to the present invention, there is provided a polyimide resin composition comprising 70 to 80 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 50 to 70 parts by weight of polyhydromethylsiloxane-polydimethylsiloxane, 30 to 40 parts by weight of 1,1-isopropylidene-bis- (para-phenylene-oxy) -diethanol, 20 to 30 parts by weight of 3,3-dimethyl-4,4-diamino-dicyclohexylmethane, 60 to 70 parts by weight of polymethylene polyphenyl isocyanate and 50 to 60 parts by weight of trimethylhexamethylene diisocyanate are added to 100 parts by weight of 1,5-naphthalene diisocyanate, A water-repellent polyurea coating agent is provided.
따라서 본 발명에 의하면, 디하이드로폴리디메틸실록산, 비스-(3-아세톡시프로필)폴리디메틸실록산, 폴리하이드로메틸실록산-폴리디메틸실록산을 폴리머 분자 내에 도입하여 최종적으로 완결되는 폴리우레아의 내오존성을 향상시켜 물성 저하가 발생되지 않도록 할 수 있고, 스프레이 장비을 사용하여 작업이 가능하여 향상된 작업성을 가질 수 있다.Thus, according to the present invention, the introduction of dihydropolydimethylsiloxane, bis- (3-acetoxypropyl) polydimethylsiloxane, and polyhydrodimethylsiloxane-polydimethylsiloxane into the polymer molecule improves the ozone resistance of the final polyurea So that it is possible to prevent the deterioration of physical properties, and it is possible to work by using spray equipment, so that it is possible to have improved workability.
한편, 본 발명의 효과는 이상에서 언급한 효과로 제한되지 않으며, 언급되지 않은 다른 효과들은 청구범위의 기재로부터 통상의 기술자에게 명확하게 이해될 수 있을 것이다.On the other hand, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.
이하, 본 발명의 바람직한 실시예에 대하여 상세히 설명하기로 한다. Hereinafter, preferred embodiments of the present invention will be described in detail.
본 발명의 바람직한 실시예에 따른 내오존성이 향상된 폴리우레아 도막 방수제는, 기본적으로, 디하이드로폴리디메틸실록산, 비스-(3-아세톡시프로필)폴리디메틸실록산, 폴리하이드로메틸실록산-폴리디메틸실록산, 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올, 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄 및 안료로 구성된 A액과, 1,5-나프탈렌디이소시아네이트, 폴리메틸렌폴리페닐이소시아네이트 및 트리메틸헥사메틸렌디이소시아네이트로 구성된 B액으로 이루어진 2액형 타입의 내오존성이 향상된 폴리우레아 도막 방수제(또는 조성물)이다.The polyurea coating waterproofing agent having improved ozone resistance according to a preferred embodiment of the present invention is basically composed of dihydropolydimethylsiloxane, bis- (3-acetoxypropyl) polydimethylsiloxane, polyhydrodimethylsiloxane-polydimethylsiloxane, , 1-isopropylidene-bis- (para-phenylene-oxy) -diethanol, 3,3-dimethyl-4,4-diamino-dicyclohexylmethane and a pigment, 2-part type polyurethane coating film waterproofing agent (or composition) having improved ozone resistance, comprising a liquid composed of naphthalene diisocyanate, polymethylene polyphenyl isocyanate and trimethylhexamethylene diisocyanate.
보다 바람직하게는, 상기 A액은 디하이드로폴리디메틸실록산 100 중량부에, 비스-(3-아세톡시프로필)폴리디메틸실록산 70~80 중량부, 폴리하이드로메틸실록산-폴리디메틸실록산 50~70 중량부, 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올 30~40 중량부, 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄 20~30 중량부 및 안료 5~8 중량부로 구성되는 혼합물이다. More preferably, the liquid A is prepared by dissolving 70 to 80 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 50 to 70 parts by weight of polyhydromethylsiloxane-polydimethylsiloxane, , 30 to 40 parts by weight of 1,1-isopropylidene-bis- (para-phenylene-oxy) -diethanol, 20 to 30 parts by weight of 3,3-dimethyl-4,4-diamino-dicyclohexylmethane And 5 to 8 parts by weight of pigment.
또한, 상기 B액은, 1,5-나프탈렌디이소시아네이트 100 중량부에, 폴리메틸렌폴리페닐이소시아네이트 60~70 중량부 및 트리메틸헥사메틸렌디이소시아네이트 50~60 중량부로 구성되는 혼합물이다. The liquid B is a mixture composed of 60 to 70 parts by weight of polymethylene polyphenyl isocyanate and 50 to 60 parts by weight of trimethylhexamethylene diisocyanate in 100 parts by weight of 1,5-naphthalene diisocyanate.
상기 디하이드로폴리디메틸실록산, 비스-(3-아세톡시프로필)폴리디메틸실록산, 폴리하이드로메틸실록산-폴리디메틸실록산은 폴리우레아 도막 방수제가 콘크리트 및 철판등 어떤 물질과도 접착강도를 강하게 해주는 역할을 하는것으로서 3가지를 동시에 사용하는 것이 바람직하다.The dihydropolydimethylsiloxane, bis- (3-acetoxypropyl) polydimethylsiloxane, and polyhydrodimethylsiloxane-polydimethylsiloxane have a role in strengthening the adhesion strength of any material, such as concrete and steel plate, It is preferable to use three kinds at the same time.
여기서, 상기 디하이드로폴리디메틸실록산 100 중량부에, 비스-(3-아세톡시프로필)폴리디메틸실록산 70~80 중량부, 폴리하이드로메틸실록산-폴리디메틸실록산 50~70 중량부, 상기와 같은 한정된 중량부를 가지는 것이 바람직하다. Herein, 70 to 80 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 50 to 70 parts by weight of polyhydrodimethylsiloxane-polydimethylsiloxane, 50 to 70 parts by weight of the above- .
상기 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올은 점도 조절을 하는 것으로서 30~40 중량부로 한정된 중량부를 가지는 것이 시공시 A액과 B액의 혼합 비율을 일정하게 하여 경화 불량이 발생하지 않는다.The above-mentioned 1,1-isopropylidene-bis- (para-phenylene-oxy) -diethanol has viscosity control and has a weight part limited to 30 to 40 parts by weight. So that hardening failure does not occur.
한편, 상기 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄은 1,5-나프탈렌디이소시아네이트, 폴리메틸렌폴리페닐이소시아네이트 및 트리메틸헥사메틸렌디이소시아네이트 반응하여 우레아 결합을 형성하는 물질이다.On the other hand, the 3,3-dimethyl-4,4-diamino-dicyclohexylmethane is a substance which forms a urea bond by the reaction of 1,5-naphthalene diisocyanate, polymethylene polyphenyl isocyanate and trimethylhexamethylene diisocyanate.
이하, 본 발명의 바람직한 실시예에 따른 폴리우레아 도막 방수제 조성물의 효과를 구체적인 실시예를 통해 설명하기로 한다.
Hereinafter, the effect of the polyurea coating film waterproofing composition according to the preferred embodiment of the present invention will be described with reference to specific examples.
디하이드로폴리디메틸실록산 100 중량부에, 비스-(3-아세톡시프로필)폴리디메틸실록산 80 중량부, 폴리하이드로메틸실록산-폴리디메틸실록산 70 중량부, 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올 40 중량부, 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄 30 중량부 및 안료 8 중량부로 구성된 A액과, 1,5-나프탈렌디이소시아네이트 100 중량부에, 폴리메틸렌폴리페닐이소시아네이트 70 중량부 및 트리메틸헥사메틸렌디이소시아네이트 60 중량부를 혼합 반응 하여 얻어지는 B액으로 구성된 2액형의 폴리우레아 도막 방수제를 제조한 후, A액과 B액을 1.5:1 비율로 혼합하여 시험편을 제조한 후 물성을 측정하였다. 80 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 70 parts by weight of polyhydromethylsiloxane-polydimethylsiloxane, 1,1-isopropylidene-bis- (para -Phenylene-oxy) -diethanol (40 parts by weight), 3,3-dimethyl-4,4-diamino-dicyclohexylmethane (30 parts by weight) and the pigment (8 parts by weight), and 1,5-naphthalene diisocyanate Liquid polyurethane coating film waterproofing agent composed of 70 parts by weight of polymethylene polyphenyl isocyanate and 60 parts by weight of trimethylhexamethylene diisocyanate was added to 100 parts by weight of a polyurethane coating solution, 1, and the physical properties of the test pieces were measured.
디하이드로폴리디메틸실록산 100 중량부에, 비스-(3-아세톡시프로필)폴리디메틸실록산 75 중량부, 폴리하이드로메틸실록산-폴리디메틸실록산 65 중량부, 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올 35 중량부, 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄 25 중량부 및 안료 7 중량부가 첨가되어 구성되는 A액과, 1,5-나프탈렌디이소시아네이트 100 중량부에, 폴리메틸렌폴리페닐이소시아네이트 65 중량부 및 트리메틸헥사메틸렌디이소시아네이트 55 중량부가 첨가되어 구성되는 B액을 포함하는 폴리우레아 도막 방수제가 제공된다.75 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 65 parts by weight of polyhydromethylsiloxane-polydimethylsiloxane, 1,1-isopropylidene-bis- (para -Phenylene-oxy) -diethanol (35 parts by weight), 3,3-dimethyl-4,4-diamino-dicyclohexylmethane (25 parts by weight) and a pigment (7 parts by weight) There is provided a polyurea coating waterproofing agent comprising 100 parts by weight of naphthalene diisocyanate and 65 parts by weight of polymethylene polyphenylisocyanate and 55 parts by weight of trimethylhexamethylene diisocyanate.
디하이드로폴리디메틸실록산 100 중량부에, 비스-(3-아세톡시프로필)폴리디메틸실록산 70 중량부, 폴리하이드로메틸실록산-폴리디메틸실록산 50 중량부, 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올 30 중량부, 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄 20 중량부 및 안료 5 중량부가 첨가되어 구성되는 A액과, 1,5-나프탈렌디이소시아네이트 100 중량부에, 폴리메틸렌폴리페닐이소시아네이트 50 중량부 및 트리메틸헥사메틸렌디이소시아네이트 50 중량부가 첨가되어 구성되는 B액을 포함하는 폴리우레아 도막 방수제가 제공된다.70 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 50 parts by weight of polyhydrodimethylsiloxane-polydimethylsiloxane, 100 parts by weight of 1,1-isopropylidene-bis- (para -Phenylene-oxy) -diethanol (30 parts by weight), 3,3-dimethyl-4,4-diamino-dicyclohexylmethane (20 parts by weight) and a pigment (5 parts by weight) There is provided a polyurea coating waterproofing agent comprising 100 parts by weight of naphthalene diisocyanate and 50 parts by weight of polymethylene polyphenylisocyanate and 50 parts by weight of trimethylhexamethylene diisocyanate.
한편, 상기 각각의 실시예의 내오존성이 향상된 폴리우레아 도막 방수제의 선응을 평가하기 위하여, KSF 4922에 의거하여 시험편을 상기와 같이 제조한 다음, 시제품 A사, 시제품 B사와 비교하여 물성을 측정하였으며, 그 결과를 하기 표 1에 나타내었다. On the other hand, in order to evaluate the conformity of the polyurea coating waterproofing agent having improved ozone resistance in each of the above examples, the test piece was prepared as described above according to KSF 4922, and the properties were compared with those of the prototype A and prototype B, The results are shown in Table 1 below.
따라서 본 발명의 바람직한 실시예에 따른 내오존성이 향상된 폴리우레아 도막 방수제는, 상기 표 1에 나타낸 바와 같이, 분자 구조 내에 강도 및 강인성이 부여되고 방수, 방식, 바닥재 등의 다양한 용도로 사용될 수 있고, 또한 A액과 B액을 스프레이 장비로 시공을 하면 기존의 도막 방수제에 비하여 내오존성이 우수하여 물성 저하가 발생하지 않는다. Therefore, as shown in Table 1, the polyurea coating waterproofing agent having improved ozone resistance according to the preferred embodiment of the present invention is imparted with strength and toughness in the molecular structure and can be used for various purposes such as waterproofing, In addition, when spraying equipment A and B, spraying equipment is superior in ozone resistance compared to conventional coatings, and does not cause deterioration of physical properties.
한편, 본 발명의 바람직한 실시예에 따른 내오존성이 향상된 폴리우레아 도막 방수제를 이용한 연질/경질이 결합된 복합 시공방법은 다음과 같다.Meanwhile, a flexible / hard bonded composite construction method using a polyurea coating waterproofing agent having improved ozone resistance according to a preferred embodiment of the present invention is as follows.
먼저, 작업자에 의해 상기와 같이 조성되는 폴리우레아 도막 방수제가 시공되기 위한 콘크리트 표면이 청소 및 처리된다. 여기서, 콘크리트 표면의 청소는, 콘크리트 표면에 붙어 있는 먼지, 오염물, 또는 오일을 제거하고 시공될 표면의 돌출부가 매끄럽게 처리되는 것을 포함한다.First, the surface of the concrete for the construction of the polyurea coating waterproofing agent to be formed as described above is cleaned and treated by the operator. Here, the cleaning of the concrete surface includes removing dust, contaminants, or oil adhering to the concrete surface and smoothly treating protrusions on the surface to be applied.
이후, 디하이드로폴리디메틸실록산 100 중량부에, 비스-(3-아세톡시프로필)폴리디메틸실록산 70~80 중량부, 폴리하이드로메틸실록산-폴리디메틸실록산 50~70 중량부, 1,1-이소프로필리덴-비스-(파라-페닐렌-옥시)-디에탄올 30~40 중량부, 3,3-디메틸-4,4-디아미노-디사이클로헥실메탄 20~30 중량부 및 안료 5~8 중량부가 첨가되어 A액이 제조되고 1,5-나프탈렌디이소시아네이트 100 중량부에, 폴리메틸렌폴리페닐이소시아네이트 60~70 중량부 및 트리메틸헥사메틸렌디이소시아네이트 50~60 중량부가 첨가되어 B액이 제조되며, 상기 A액과 B액이 반응조 또는 교반기에 1.5:1의 일정한 비율로 투입된 후 상온에서 10분 내지 30분간 반응되어 폴리우레아 도막 방수제 조성물로 제조된다.Then, 70 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 50 to 70 parts by weight of polyhydromethylsiloxane-polydimethylsiloxane, 1,1-isopropyl 30 to 40 parts by weight of diene-bis- (para-phenylene-oxy) -diethanol, 20 to 30 parts by weight of 3,3-dimethyl-4,4-diamino-dicyclohexylmethane and 5 to 8 parts by weight To prepare a liquid A, 60 to 70 parts by weight of polymethylene polyphenyl isocyanate and 50 to 60 parts by weight of trimethylhexamethylene diisocyanate are added to 100 parts by weight of 1,5-naphthalene diisocyanate to prepare liquid B, and A The solution and the liquid B are added to the reaction tank or the agitator at a constant ratio of 1.5: 1, and then reacted at room temperature for 10 minutes to 30 minutes to prepare a polyurea film coating composition.
이후, 도포수단에 의해 상기 표면 처리된 시공표면에 소정의 두께로 상기 폴리우레아 도막 방수제가 도포된 후 건조되어 도막 시공이 완료된다.Thereafter, the polyurea coating film waterproofing agent is applied to the surface-treated surface by a coating means to a predetermined thickness, and then dried to complete coating.
이상 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하였지만, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 벗어나지 않는 범위 내에서 여러 가지로 치환, 변형 및 변경이 가능하므로 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다.While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be understood that the invention may be embodied otherwise. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.
Claims (3)
1,5-나프탈렌디이소시아네이트 100 중량부에, 폴리메틸렌폴리페닐이소시아네이트 60~70 중량부 및 트리메틸헥사메틸렌디이소시아네이트 50~60 중량부가 첨가되어 B액이 제조되는 제2단계와;
상기 A액과 B액은 1.5:1의 부피비로 혼합되고 도포장비에 의해 도포되는 제3단계를 포함하는 것을 특징으로 하는 폴리우레아 도막 방수제 제조방법. 70 to 80 parts by weight of bis- (3-acetoxypropyl) polydimethylsiloxane, 50 to 70 parts by weight of polyhydromethylsiloxane-polydimethylsiloxane, 1,1-isopropylidene- 30 to 40 parts by weight of bis- (para-phenylene-oxy) -diethanol, 20 to 30 parts by weight of 3,3-dimethyl-4,4-diamino-dicyclohexylmethane and 5 to 8 parts by weight of pigment are added A first step in which liquid A is produced;
A second step wherein 60 to 70 parts by weight of polymethylene polyphenyl isocyanate and 50 to 60 parts by weight of trimethylhexamethylene diisocyanate are added to 100 parts by weight of 1,5-naphthalene diisocyanate to prepare solution B;
Wherein the liquid A and the liquid B are mixed at a volume ratio of 1.5: 1 and applied by a coating equipment.
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