KR101702863B1 - Permeable inorganic membrane curing composition with durability and surface reinforcing functions of concrete and method for manufacturing thereof - Google Patents

Permeable inorganic membrane curing composition with durability and surface reinforcing functions of concrete and method for manufacturing thereof Download PDF

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KR101702863B1
KR101702863B1 KR1020160106163A KR20160106163A KR101702863B1 KR 101702863 B1 KR101702863 B1 KR 101702863B1 KR 1020160106163 A KR1020160106163 A KR 1020160106163A KR 20160106163 A KR20160106163 A KR 20160106163A KR 101702863 B1 KR101702863 B1 KR 101702863B1
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concrete
parts
silicate
coating film
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KR1020160106163A
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Korean (ko)
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박영준
장병하
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주식회사 이레하이테크이앤씨
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/045Alkali-metal containing silicates, e.g. petalite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/06Quartz; Sand
    • C04B14/062Microsilica, e.g. colloïdal silica
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/40Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
    • C04B24/42Organo-silicon compounds

Abstract

The present invention relates to a permeable inorganic membrane curing agent composition enhancing the strength and durability of concrete and a method for manufacturing the same. According to the present invention, an effective moisture-keeping film for concrete curing is formed after mortar or concrete placement, which results in the minimization of cracking and drying shrinkage of mortar or concrete surface based on moisture loss suppression, a uniform concrete surface state, improvement in water retention performance, and an accelerated cement hydration reaction. According to the present invention, no extra curing operation such as the use of a wet mat is required since a spray construction method is used, and thus material and labor costs can be reduced. In addition, the present invention is environmentally friendly and causes no harmful effect attributable to an organic solvent. Furthermore, the present invention is highly permeable and pores or the like are filled with a gel-form reaction product through a reaction with calcium ion in the concrete, which leads to surface strength improvement and improvement of durability in the form of self-healing performance, water resistance, chloride resistance, neutralization resistance, etc.

Description

콘크리트의 내구성과 표면강화성능을 증진시키는 침투성 무기계 도막 양생제 조성물 및 이의 제조방법{PERMEABLE INORGANIC MEMBRANE CURING COMPOSITION WITH DURABILITY AND SURFACE REINFORCING FUNCTIONS OF CONCRETE AND METHOD FOR MANUFACTURING THEREOF}TECHNICAL FIELD The present invention relates to a permeable inorganic coating film curing agent composition for improving the durability and surface strengthening performance of concrete, and a method for manufacturing the same. BACKGROUND ART [0002]

본 발명은 콘크리트의 내구성과 표면강화 성능을 증진시키는 침투성 무기계 도막 양생제 조성물 및 이의 제조방법에 관한 것으로, 더욱 상세하게는 침투성이 우수한 침투성 무기계 도막 양생제 조성물을 사용함으로써 수분증발 억제, 표면강도, 접착력, 내산성, 내수성, 내염해성, 중성화 저항성 등이 우수한 침투성 무기계 도막 양생제 조성물 및 이의 제조방법에 관한 것이다.The present invention relates to a water permeable inorganic coating film curing agent composition for improving the durability and surface strengthening performance of concrete and a method for producing the same, and more particularly, to a water permeable inorganic coating film curing agent composition having a water permeation inhibiting inorganic coating film curing agent composition, And is excellent in adhesion, acid resistance, water resistance, salt resistance, neutralization resistance and the like, and a method for producing the same.

일반적으로 콘크리트 시공 초기에 발생 가능한 문제점 중 양생 조건은 콘크리트 타설 작업이 끝난 후 시멘트의 원활한 수화작용을 위해 콘크리트 슬래브나 포장면에 살수나 젖은 매트를 설치하여 습윤상태를 유지하는 것이 일반적이다. 현장에서 콘크리트를 타설한 후 거푸집을 해체하게 되면 직사광선에 의한 급격한 수분 증발로 인한 콘크리트에 망상형태의 소성균열이 발생되기 때문에 콘크리트 표면에 양생포를 덮거나 물을 살포해 주면서 콘크리트를 양생하여야 한다.  Generally, among the problems that may occur at the early stage of concrete construction, curing conditions are generally set to maintain the wet state by installing water spray or wet mats on concrete slabs or pavement for smooth hydration of cement after concrete pouring work. When the concrete is laid on the site and the form is dismantled, a netlike plastic crack is generated in the concrete due to the rapid water evaporation caused by the direct sunlight. Therefore, concrete should be cured by covering the curing cloth or spraying water on the concrete surface.

일반적으로 양생방법은 산수양생, 도막양생, 시트양생 등의 방법이 주로 사용되고 있다. Generally, curing methods such as acid water curing, film curing and sheet curing are mainly used.

산수양생(散水養生)은 하절기와 같이 기온이 높고 수분의 증발속도가 빠른 시기에는 산수를 자주하여야 하기 때문에 작업이 번잡해 지며, 시트양생은 시공면적에 따라 사용 시트량이 증가하고 형태의 복잡화에 대응하기 어려운 단점과 전단면 시공일 때는 작업성이 저하된다. As the water temperature is high and the water evaporation rate is high, it is necessary to make the number of arithmetic frequently. Therefore, the sheet curing will increase the amount of sheets used depending on the construction area and cope with the complexity of shape. And the workability is deteriorated at the time of full cross-section construction.

또한 도막양생은 주로 석유 수지로 이루어진 유성타입으로 살포 후 유기 용제의 증발로 인한 심각한 환경문제를 유발하기 때문에 작업자에게 유해할 뿐만 아니라 폭발 및 화재 우려가 있으며, 피막의 균일성과 건조시간, 수분 손실량 등의 효능이 다소 부족한 문제점을 가지고 있다. In addition, the curing of the coating film is mainly of a petroleum resin, which causes serious environmental problems due to the evaporation of the organic solvent after spraying. Therefore, it is not only harmful to the workers but also there is a risk of explosion and fire, and the uniformity of the film, drying time, Is somewhat lacking in its efficacy.

대한민국 등록특허 제10-1292174호 (2013년08월01일 공고)Korean Patent No. 10-1292174 (issued on August 01, 2013) 대한민국 공개특허 제10-2010-0007709호 (2010년01월22일 공개)Korean Patent Publication No. 10-2010-0007709 (published on Jan. 22, 2010)

본 발명이 해결하고자 하는 과제는 모르타르나 콘크리트 타설 후 콘크리트 양생을 위한 효과적인 수분 유지막을 형성함으로써 수분손실 억제에 의한 모르타르나 콘크리트 표면의 크랙과 건조 수축을 최소화시키고, 콘크리트 표면상태를 균일하게 함과 동시에 보수성을 향상시켜 아울러 시멘트 수화반응을 촉진하여 콘크리트의 강도와 내구성을 향상시키고자 하는 침투성 무기계 도막 양생제 조성물 및 이의 제조방법을 제공하고자 한다.A problem to be solved by the present invention is to minimize cracks and drying shrinkage of mortar or concrete surface due to moisture loss suppression by forming an effective moisture retention film for concrete curing after mortar or concrete pouring, The present invention provides a permeable inorganic coating film curing agent composition and a method for manufacturing the same, which are intended to improve water retention and promote strength and durability of concrete by promoting cement hydration reaction.

본 발명은, 침투성을 가지고 있어 표면 강도 개선, 내수성, 내염해성, 중성화 저항성 등의 내구성을 개선하기 위한 침투성 무기계 도막 양생제 조성물을 사용한다. The present invention uses a permeable inorganic coating film curing agent composition having permeability and improving durability such as surface strength improvement, water resistance, flame retardancy, and neutralization resistance.

상기 침투성 무기계 도막 양생재 조성은 규산 용액과 알콕시 실란을 반응하여 나노 크기(<10nm)의 실리카 입자와 도막 골격을 동시에 형성할 도막을 형성할 수 있는 가수분해 축·중합물을 형성하고, 콘크리트의 기본조성인 칼슘실리케이트와 친화성이 우수할 뿐만 아니라 가수분해 축·중합물과의 상용성을 증진시킬 수 있는 알카리 실리케이트와 양생제의 침투성을 증진시키기 위한 계면활성제로 이루어진 도막 양생제 조성물을 제조하는 것을 포함한다. The permeable inorganic coating film curing composition reacts with a silicate solution and an alkoxysilane to form a hydrolysis-condensation polymer capable of forming a coating film for simultaneously forming nano-sized (<10 nm) silica particles and a coating film skeleton, And a surfactant for enhancing the permeability of the curing agent and the alkaline silicate which is excellent in affinity with the calcium silicate of the present invention and can improve the compatibility with the hydrolysis axis and the polymerized product do.

상기의 규산 용액은 규산 나트륨 용액를 활성화된 양이온 교환수지를 통과시켜 제조한다. 먼저 규산 나트륨(Sodium silicate, Na2O·nSiO2, 40중량부) 용액을 순수로 5에서 10중량부로 희석한 후에 양이온 교환수지가 탑재된 수지탑을 통과시켜 제조한다.The silicate solution is prepared by passing a sodium silicate solution through an activated cation exchange resin. First, a solution of sodium silicate (sodium silicate, Na 2 O.nSiO 2 , 40 parts by weight) was diluted with pure water from 5 to 10 parts by weight and then passed through a resin tower equipped with a cation exchange resin.

상기 규산 용액에 알콕시 실란을 투입 반응하면 규산 용액은 규산 입자종(배아, embryo)이 성장하여 나노 크기(<10nm)의 실리카 입자가 생성되며, 이와 동시에 알콕시 실란이 실리카 입자의 표면에 가수분해 및 축·중합 반응을 통해 피막 형성이 가능한 중합체가 제조된다.When the alkoxysilane is added to the silicate solution, the silicate solution grows in the form of silicate particles (embryo) to produce nano-sized (<10 nm) silica particles. At the same time, the alkoxysilane is hydrolyzed A polymer capable of forming a film through an axial polymerization reaction is produced.

하기 반응식은 규산 용액과 알콕시 실란의 축·중합 반응을 개략적으로 나타낸 것이다.The following reaction schemes schematically illustrate the axial polymerization of a silicate solution and an alkoxysilane.

Figure 112016081335977-pat00001
Figure 112016081335977-pat00002
(반응식)
Figure 112016081335977-pat00001
Figure 112016081335977-pat00002
(Scheme)

상기 반응식에서, R은 선형 또는 분지형의 C1 ∼ C20 알킬기, C3 ∼ C20 사이클로알킬기, C2 ∼ C20 알케닐기, C2 ∼ C20 알키닐기, C6 ∼ C20 아릴기, 아크릴기, 메타크릴기, 할로겐기, 아미노기, 머캅토기, 에테르기, 에스테르기, 카르보닐기, 카르복실기, 비닐기, 나이트로기, 술폰기, 알키드기 등으로 이루어진 군에서 1종 이상의 작용기를 포함할 수 있은나, 이에 제한되지 않을 수 있다.In the above reaction formula, R represents a linear or branched C 1 to C 20 alkyl group, a C 3 to C 20 cycloalkyl group, a C 2 to C 20 alkenyl group, a C 2 to C 20 alkynyl group, a C 6 to C 20 aryl group, May include at least one functional group in the group consisting of an acryl group, a methacryl group, a halogen group, an amino group, a mercapto group, an ether group, an ester group, a carbonyl group, a carboxyl group, a vinyl group, a nitro group, However, the present invention is not limited thereto.

상기의 반응식은 출발 물질인 알콕시 실란의 알콕시기가 물에 의해 가수분해되어 수산화기를 형성하는 것을 나타낸 것이다. 이를 통해 형성된 수산화기는 반응식에서 볼 수 있듯이 다른 실란의 수산화기 또는 알콕시 간의 축합반응을 통해서 실록산 결합을 형성한다.The above reaction scheme shows that the alkoxy group of the starting alkoxysilane is hydrolyzed by water to form a hydroxyl group. The hydroxyl group formed by this reaction forms a siloxane bond through the condensation reaction between hydroxyl groups or alkoxys of other silanes as shown in the reaction formula.

상기의 가수분해 및 축합반응은 상온에서 약 2 ~ 24시간 정도 교반에 의해 진행될 수 있으나, 이에 제한되지 않을 수 있다.The hydrolysis and condensation reaction may be carried out by stirring at room temperature for about 2 to 24 hours, but the present invention is not limited thereto.

상기 알콕시 실란은 하기 화학식로부터 1종 이상 선택하여 사용할 수 있다.The alkoxysilane may be at least one selected from the following formulas.

[화학식][Chemical Formula]

R1 nSi(OR2)4-n R 1 n Si (OR 2 ) 4-n

예를 들면, 상기 화학식으로 표시되는 알콕시 실란은, 테트라메톡시실란, 테트라에톡시실란, 메틸트리메톡시실란, 메틸트리에톡시실란, 메틸트리프로폭시실란, 다이메틸다이메톡시실란, 다이메틸다이에톡시실란, 페닐트리메톡시실란, 페닐트리에톡시실란, 다이페닐다이메톡시실란, 다이페닐다이에톡시실란, 트리페닐메톡시실란, 트리페닐에톡시실란, 에틸트리에톡시실란, 프로필에틸트리메톡시실란, 비닐트리메톡시실란, 비닐트리에톡시실란, 비닐트리프로폭시실란, N-(3-아크릴옥시-2-하이드록시프로필)-3-아미노프로필트리메톡시실란, N-(3-아크릴옥시-2-하이드록시프로필)-3-아미노프로필트리에톡시실란, N-(3-아크릴옥시-2-하이드록시프로필)-3-아미노프로필트리프로폭시실란, 3-아크릴옥시프로필메틸비스(트리메톡시)실란, 3-아크릴옥시프로필트리메톡시실란, 3-아크릴옥시프로필트리에톡시실란, 3-아크릴옥시프로필트리프로폭시실란, 3-(메트)아크릴옥시프로필트리메톡시실란, 3-(메트)아크릴옥시프로필트리프톡시실란, 3-(메트)아크릴옥시프로필트리프로폭시실란, N-(아미놀에틸-3-아미노프로필)트리메톡시실란, N-(아미놀에틸-3-아미노프로필)트리에톡시실란, 3-아미노프로필트리메톡시실란, 3-아미노프로필트리에톡시실란, 클로로프로필트리메톡시실란, 크롤로프로필트리에톡시실란, 헵타데카플루오르데실트리메톡시실란 등으로 이루어진 군에서 선택된 1종 이상일 수 있으나, 이에 제한되지 않을 수 있다.For example, the alkoxysilane represented by the above formula may be at least one selected from the group consisting of tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, methyltripropoxysilane, dimethyldimethoxysilane, dimethyl Diphenylmethoxysilane, diphenyldiethoxysilane, triphenylmethoxysilane, triphenylethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, dipropyldimethoxysilane, diphenyldiethoxysilane, triphenylmethoxysilane, triphenylethoxysilane, ethyltriethoxysilane, Vinyltrimethoxysilane, vinyltriethoxysilane, vinyltripropoxysilane, N- (3-acryloxy-2-hydroxypropyl) -3-aminopropyltrimethoxysilane, N- (3-acryloxy-2-hydroxypropyl) -3-aminopropyltriethoxysilane, N- (3-acryloxy-2- hydroxypropyl) -3-aminopropyltripropoxysilane, 3- Propylmethylbis (trimethoxy) silane, 3-acryloxypropyl (Meth) acryloxypropyltriethoxysilane, 3-acryloxypropyltriethoxysilane, 3-acryloxypropyltrimethoxysilane, 3- (meth) acryloxypropyltrimethoxysilane, 3- (Aminolethyl-3-aminopropyl) trimethoxysilane, N- (aminolethyl-3-aminopropyl) triethoxysilane, 3-amino Propyltrimethoxysilane, 3-aminopropyltriethoxysilane, chloropropyltrimethoxysilane, chloropropyltriethoxysilane, heptadecafluorodecyltrimethoxysilane, and the like. However, But may not be limited thereto.

상기 침투성 무기계 도막 양생제 조성물에서 알칼리 실리케이트는 콘크리트 기본조성인 칼슘실리케이트와 친화성이 우수할 뿐만 아니라 가수분해 축·중합물과의 상용성을 증진시키는 역할을 하며 구체적인 예로서는 액상 규산나트륨(sodium silicate), 액상 규산칼륨(potassium silicate), 리튬 실리케이트(lithium silicate) 등으로 이루어진 군에서 선택된 1종 이상일 수 있으나, 이에 제한되지 않을 수 있다.In the permeable inorganic coating film curing agent composition, the alkali silicate is not only excellent in compatibility with calcium silicate as a basic constituent of concrete but also enhances compatibility with the hydrolysis axis and polymeric compound. Specific examples thereof include liquid sodium silicate, And may be at least one selected from the group consisting of liquid silicate, potassium silicate, lithium silicate, and the like, but may not be limited thereto.

상기 침투성 무기계 도막 양생제 조성물에서 계면활성제는 양생제 조성물이 콘크리트 구조물 내부로의 빠르게 침투할 수 있도록 함으로써, 콘크리트 구조물의 내부까지 양생제 조성물의 결합이 잘 진행되어 콘크리트 구조물의 강도를 증진시키는 역할을 하며 구체적인 예로서 폴리옥시에틸렌(10) 세틸/스테아릴 에테르(Polyoxyethylene(10) cetyl/stearyl ether), 폴리옥시에틸렌(6) 세틸/스테아릴 에테르(Polyoxyethylene(6) cetyl/stearyl ether), 폴리옥시에틸렌(6) 세틸 에테르(Polyoxyethylene(6) cetyl ether), 폴리옥시에틸렌(12) 세틸 에테르(Polyoxyethylene(12) cetyl ether), 폴리옥시에틸렌(4) 이소데실 에테르(Polyoxyethylene(4) isodecyl ether), 폴리옥시에틸렌(12) 이소데실 에테르(Polyoxyethylene(12) isodecyl ether), 폴리옥시에틸렌(6) 이소라우릴 에테르(Polyoxyethylene(6) isolauryl ether), 폴리옥시에틸렌(5) 이소스테아릴 에테르(Polyoxyethylene(5) isostearyl ether), 폴리옥시에틸렌(3) 올레일 에테르(Polyoxyethylene(3) oleyl ether), 폴리옥시에틸렌(11) 올레일 에테르(Polyoxyethylene(11) oleyl ether), 폴리옥시에틸렌(5) 옥틸도데실 에테르(Polyoxyethylene(5) octyldodecyl ether) 및 폴리옥시에틸렌(10) 옥틸도데실 에테르(Polyoxyethylene(10) octyldodecyl ether)로 이루어진 군으로부터 1종 이상 선택된 것을 사용할 수 있다.In the permeable inorganic coating film curing agent composition, the surfactant can rapidly penetrate the concrete structure into the interior of the concrete structure, thereby improving the strength of the concrete structure by progressing the bonding of the curing agent composition to the interior of the concrete structure Specific examples thereof include polyoxyethylene (10) cetyl / stearyl ether, polyoxyethylene (6) cetyl / stearyl ether, polyoxyethylene Polyoxyethylene (6) cetyl ether, polyoxyethylene (12) cetyl ether, polyoxyethylene (4) isodecyl ether, Polyoxyethylene (12) isodecyl ether, polyoxyethylene (6) isoleucyl ether, polyoxyethylene (5) isocyanate, and polyoxyethylene Polyoxyethylene (5) isostearyl ether, polyoxyethylene (3) oleyl ether, polyoxyethylene (11) oleyl ether, polyoxyethylene At least one selected from the group consisting of ethylene (5) octyldodecyl ether and polyoxyethylene (10) octyldodecyl ether may be used.

본 발명에 의하면, 모르타르나 콘크리트 양생을 위한 효과적인 수분 유지막을 형성하기 때문에, 수분손실 억제에 의한 콘크리트 표면의 소성균열과 건조 수축을 최소화시키고, 콘크리트 표면 상태를 균일하게 하고 보수성을 향상시켜 시멘트 수화반응을 촉진하여 콘크리트의 강도와 내구성을 향상시키는 효과가 있다. According to the present invention, since an effective moisture retention film for mortar or concrete curing is formed, plastic cracking and drying shrinkage of the concrete surface due to moisture loss suppression are minimized, uniformity of concrete surface condition and water retention are improved, Thereby improving the strength and durability of the concrete.

또한, 본 발명의 침투성 무기계 도막 양생제 조성물은 분무식 시공법에 의해 젖은 매트 사용 등 기타 양생 작업이 불필요하여 재료비 및 노무비가 절감되고, 유기 용제에 의한 유해성이 전혀 없는 환경 친화적인 특징을 가지고 있다. In addition, the permeable inorganic coating film curing agent composition of the present invention is environmentally friendly in that it does not require any other curing work such as wet matting by a spray-type construction method, thereby reducing material costs and labor costs, and being free from harmful effects caused by organic solvents.

또한, 침투성이 우수하여 콘크리트 내부의 칼슘이온과의 반응으로 공극 등을 겔 상의 반응생성물이 충전되어 표면 강도 개선, 자기치유성, 내수성, 내염해성, 중성화 저항성 등의 내구성을 개선할 수 있는 부과적인 효과를 가지고 있다.In addition, it is excellent in permeability, and it is possible to improve the durability such as improvement of surface strength, self-healing property, water resistance, salt resistance and neutralization resistance by charging reaction product of gel into pores due to reaction with calcium ion in concrete Effect.

이하, 본 발명에 따른 바람직한 실시예를 상세하게 설명한다. 그러나, 이하의 실시예는 이 기술 분야에서 통상적인 지식을 가진 자에게 본 발명이 충분히 이해되도록 제공되는 것으로서 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 다음에 기술되는 실시예에 한정되는 것은 아니다. Hereinafter, preferred embodiments according to the present invention will be described in detail. However, it should be understood that the following embodiments are provided so that those skilled in the art will be able to fully understand the present invention, and that various modifications may be made without departing from the scope of the present invention. It is not.

본 발명의 바람직한 실시예에 따른 규산 용액, 알콕시 실란, 계면활성제를 포함하는 침투성 무기계 도막 양생제 조성물을 제조한다.A permeable inorganic coating film curing agent composition comprising a silicate solution, an alkoxysilane, and a surfactant according to a preferred embodiment of the present invention is prepared.

상기의 규산 용액은 규산 나트륨 용액를 활성화된 양이온 교환수지를 통과시켜 제조한다. 먼저 규산 나트륨(Sodium silicate, Na2O·nSiO2, 40중량부) 용액을 순수로 5에서 10중량부로 희석한 후에 양이온 교환수지가 탑재된 수지탑을 통과시켜 제조한다.The silicate solution is prepared by passing a sodium silicate solution through an activated cation exchange resin. First, a solution of sodium silicate (sodium silicate, Na 2 O.nSiO 2 , 40 parts by weight) was diluted with pure water from 5 to 10 parts by weight and then passed through a resin tower equipped with a cation exchange resin.

상기 규산 용액에 알콕시 실란을 투입 반응하면 규산 용액은 규산 입자종(배아, embryo)이 성장하여 나노 크기(<10nm)의 실리카 입자가 생성되며, 이와 동시에 알콕시 실란이 실리카 입자의 표면에 가수분해 및 축·중합 반응을 통해 피막 형성이 가능한 중합체가 제조된다.When the alkoxysilane is added to the silicate solution, the silicate solution grows in the form of silicate particles (embryo) to produce nano-sized (<10 nm) silica particles. At the same time, the alkoxysilane is hydrolyzed A polymer capable of forming a film through an axial polymerization reaction is produced.

하기 반응식은 규산 용액과 알콕시 실란의 축·중합 반응을 개략적으로 나타낸 것이다.The following reaction schemes schematically illustrate the axial polymerization of a silicate solution and an alkoxysilane.

Figure 112016081335977-pat00003
Figure 112016081335977-pat00004
(반응식)
Figure 112016081335977-pat00003
Figure 112016081335977-pat00004
(Scheme)

상기 반응식에서, R은 선형 또는 분지형의 C1 ∼ C20 알킬기, C3 ∼ C20 사이클로알킬기, C2 ∼ C20 알케닐기, C2 ∼ C20 알키닐기, C6 ∼ C20 아릴기, 아크릴기, 메타크릴기, 할로겐기, 아미노기, 머캅토기, 에테르기, 에스테르기, 카르보닐기, 카르복실기, 비닐기, 나이트로기, 술폰기, 알키드기 등으로 이루어진 군에서 1종 이상의 작용기를 포함할 수 있으나, 이에 제한되지 않을 수 있다.In the above reaction formula, R represents a linear or branched C 1 to C 20 alkyl group, a C 3 to C 20 cycloalkyl group, a C 2 to C 20 alkenyl group, a C 2 to C 20 alkynyl group, a C 6 to C 20 aryl group, May include at least one functional group in the group consisting of an acryl group, a methacryl group, a halogen group, an amino group, a mercapto group, an ether group, an ester group, a carbonyl group, a carboxyl group, a vinyl group, a nitro group, However, the present invention is not limited thereto.

상기의 반응식은 출발 물질인 알콕시 실란의 알콕시기가 물에 의해 가수분해되어 수산화기를 형성하는 것을 나타낸 것이다. 이를 통해 형성된 수산화기는 반응식에서 볼 수 있듯이 다른 실란의 수산화기 또는 알콕시 간의 축합반응을 통해서 실록산 결합을 형성한다.The above reaction scheme shows that the alkoxy group of the starting alkoxysilane is hydrolyzed by water to form a hydroxyl group. The hydroxyl group formed by this reaction forms a siloxane bond through the condensation reaction between hydroxyl groups or alkoxys of other silanes as shown in the reaction formula.

상기의 가수분해 및 축합반응은 상온에서 약 2 ~ 24시간 정도 교반에 의해 진행될 수 있으나, 이에 제한되지 않을 수 있다.The hydrolysis and condensation reaction may be carried out by stirring at room temperature for about 2 to 24 hours, but the present invention is not limited thereto.

상기 알콕시 실란은 하기 화학식로부터 1종 이상 선택하여 사용할 수 있다.The alkoxysilane may be at least one selected from the following formulas.

[화학식][Chemical Formula]

R1 nSi(OR2)4-n R 1 n Si (OR 2 ) 4-n

예를 들면, 상기 화학식으로 표시되는 알콕시 실란은, 테트라메톡시실란, 테트라에톡시실란, 메틸트리메톡시실란, 메틸트리에톡시실란, 메틸트리프로폭시실란, 다이메틸다이메톡시실란, 다이메틸다이에톡시실란, 페닐트리메톡시실란, 페닐트리에톡시실란, 다이페닐다이메톡시실란, 다이페닐다이에톡시실란, 트리페닐메톡시실란, 트리페닐에톡시실란, 에틸트리에톡시실란, 프로필에틸트리메톡시실란, 비닐트리메톡시실란, 비닐트리에톡시실란, 비닐트리프로폭시실란, N-(3-아크릴옥시-2-하이드록시프로필)-3-아미노프로필트리메톡시실란, N-(3-아크릴옥시-2-하이드록시프로필)-3-아미노프로필트리에톡시실란, N-(3-아크릴옥시-2-하이드록시프로필)-3-아미노프로필트리프로폭시실란, 3-아크릴옥시프로필메틸비스(트리메톡시)실란, 3-아크릴옥시프로필트리메톡시실란, 3-아크릴옥시프로필트리에톡시실란, 3-아크릴옥시프로필트리프로폭시실란, 3-(메트)아크릴옥시프로필트리메톡시실란, 3-(메트)아크릴옥시프로필트리프톡시실란, 3-(메트)아크릴옥시프로필트리프로폭시실란, N-(아미놀에틸-3-아미노프로필)트리메톡시실란, N-(아미놀에틸-3-아미노프로필)트리에톡시실란, 3-아미노프로필트리메톡시실란, 3-아미노프로필트리에톡시실란, 클로로프로필트리메톡시실란, 크롤로프로필트리에톡시실란, 헵타데카플루오르데실트리메톡시실란 등으로 이루어진 군에서 선택된 1종 이상일 수 있으나, 이에 제한되지 않을 수 있다.For example, the alkoxysilane represented by the above formula may be at least one selected from the group consisting of tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, methyltripropoxysilane, dimethyldimethoxysilane, dimethyl Diphenylmethoxysilane, diphenyldiethoxysilane, triphenylmethoxysilane, triphenylethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, dipropyldimethoxysilane, diphenyldiethoxysilane, triphenylmethoxysilane, triphenylethoxysilane, ethyltriethoxysilane, Vinyltrimethoxysilane, vinyltriethoxysilane, vinyltripropoxysilane, N- (3-acryloxy-2-hydroxypropyl) -3-aminopropyltrimethoxysilane, N- (3-acryloxy-2-hydroxypropyl) -3-aminopropyltriethoxysilane, N- (3-acryloxy-2- hydroxypropyl) -3-aminopropyltripropoxysilane, 3- Propylmethylbis (trimethoxy) silane, 3-acryloxypropyl (Meth) acryloxypropyltriethoxysilane, 3-acryloxypropyltriethoxysilane, 3-acryloxypropyltrimethoxysilane, 3- (meth) acryloxypropyltrimethoxysilane, 3- (Aminolethyl-3-aminopropyl) trimethoxysilane, N- (aminolethyl-3-aminopropyl) triethoxysilane, 3-amino Propyltrimethoxysilane, 3-aminopropyltriethoxysilane, chloropropyltrimethoxysilane, chloropropyltriethoxysilane, heptadecafluorodecyltrimethoxysilane, and the like. However, But may not be limited thereto.

상기 침투성 무기계 도막 양생제 조성물에서 알칼리 실리케이트는 콘크리트 기본조성인 칼슘실리케이트와 친화성이 우수할 뿐만 아니라 가수분해 축·중합물과의 상용성을 증진시키는 역할을 하며 구체적인 예로서는 액상 규산나트륨(sodium silicate), 액상 규산칼륨(potassium silicate), 리튬 실리케이트(lithium silicate) 등으로 이루어진 군에서 선택된 1종 이상일 수 있으나, 이에 제한되지 않을 수 있다.In the permeable inorganic coating film curing agent composition, the alkali silicate is not only excellent in compatibility with calcium silicate as a basic constituent of concrete but also enhances compatibility with the hydrolysis axis and polymeric compound. Specific examples thereof include liquid sodium silicate, And may be at least one selected from the group consisting of liquid silicate, potassium silicate, lithium silicate, and the like, but may not be limited thereto.

상기 침투성 무기계 도막 양생제 조성물에서 계면활성제는 양생제 조성물이 콘크리트 구조물 내부로의 빠르게 침투할 수 있도록 함으로써, 콘크리트 구조물의 내부까지 양생제 조성물의 결합이 잘 진행되어 콘크리트 구조물의 강도를 증진시키는 역할을 하며 구체적인 예로서 폴리옥시에틸렌(10) 세틸/스테아릴 에테르(Polyoxyethylene(10) cetyl/stearyl ether), 폴리옥시에틸렌(6) 세틸/스테아릴 에테르(Polyoxyethylene(6) cetyl/stearyl ether), 폴리옥시에틸렌(6) 세틸 에테르(Polyoxyethylene(6) cetyl ether), 폴리옥시에틸렌(12) 세틸 에테르(Polyoxyethylene(12) cetyl ether), 폴리옥시에틸렌(4) 이소데실 에테르(Polyoxyethylene(4) isodecyl ether), 폴리옥시에틸렌(12) 이소데실 에테르(Polyoxyethylene(12) isodecyl ether), 폴리옥시에틸렌(6) 이소라우릴 에테르(Polyoxyethylene(6) isolauryl ether), 폴리옥시에틸렌(5) 이소스테아릴 에테르(Polyoxyethylene(5) isostearyl ether), 폴리옥시에틸렌(3) 올레일 에테르(Polyoxyethylene(3) oleyl ether), 폴리옥시에틸렌(11) 올레일 에테르(Polyoxyethylene(11) oleyl ether), 폴리옥시에틸렌(5) 옥틸도데실 에테르(Polyoxyethylene(5) octyldodecyl ether) 및 폴리옥시에틸렌(10) 옥틸도데실 에테르(Polyoxyethylene(10) octyldodecyl ether)로 이루어진 군으로부터 1종 이상 선택된 것을 사용할 수 있다.In the permeable inorganic coating film curing agent composition, the surfactant can rapidly penetrate the concrete structure into the interior of the concrete structure, thereby improving the strength of the concrete structure by progressing the bonding of the curing agent composition to the interior of the concrete structure Specific examples thereof include polyoxyethylene (10) cetyl / stearyl ether, polyoxyethylene (6) cetyl / stearyl ether, polyoxyethylene Polyoxyethylene (6) cetyl ether, polyoxyethylene (12) cetyl ether, polyoxyethylene (4) isodecyl ether, Polyoxyethylene (12) isodecyl ether, polyoxyethylene (6) isoleucyl ether, polyoxyethylene (5) isocyanate, and polyoxyethylene Polyoxyethylene (5) isostearyl ether, polyoxyethylene (3) oleyl ether, polyoxyethylene (11) oleyl ether, polyoxyethylene At least one selected from the group consisting of ethylene (5) octyldodecyl ether and polyoxyethylene (10) octyldodecyl ether may be used.

이하에서, 본 발명의 바람직한 실시예에 따른 침투성 무기계 도막 양생제 조성물의 제조방법을 설명하기로 한다.Hereinafter, a method for producing a permeable inorganic coating film curing agent composition according to a preferred embodiment of the present invention will be described.

발명의 바람직한 실시예에 따른 침투성 무기계 도막 양생제 조성물은 20~50중량부의 규산 용액과 1~30중량부의 알콕시 실란을 소정온도(예컨대 상온 ~60℃)에서 반응하여 나노 크기(<10nm)의 실리카 입자와 도막 골격을 동시에 형성할 도막을 형성할 수 있는 가수분해 축·중합물을 형성하고, 콘크리트의 기본조성인 칼슘실리케이트와 친화성이 우수할 뿐만 아니라 가수분해 축·중합물과의 상용성을 증진시킬 수 있는 알카리 실리케이트 20~50중량부와 양생제의 침투성을 증진시키기 위한 계면활성제 0.1~5중량부로 이루어진 도막 양생제 조성물을 제조하는 것을 포함한다. The permeable inorganic coating film curing agent composition according to a preferred embodiment of the present invention comprises 20 to 50 parts by weight of a silicate solution and 1 to 30 parts by weight of an alkoxysilane at a predetermined temperature (for example, from room temperature to 60 ° C) A hydrolysis-condensation polymer capable of forming a coating film capable of simultaneously forming a particle and a coating film skeleton is formed and not only has an excellent affinity with calcium silicate as a basic composition of concrete but also promotes compatibility with a hydrolysis-condensation polymer From 20 to 50 parts by weight of an alkaline silicate which is capable of improving the permeability of the curing agent and from 0.1 to 5 parts by weight of a surfactant for enhancing the permeability of the curing agent.

이하에서, 본 발명에 따른 침투성 무기계 도막 양생제 조성물의 실시예들을 더욱 구체적으로 제시하며, 다음에 제시하는 실시예들에 의하여 본 발명이 한정되는 것은 아니다. Hereinafter, the embodiments of the permeable inorganic coating film curing agent composition according to the present invention will be more specifically shown and the present invention is not limited by the following embodiments.

가수분해 축·중합물 제조Production of hydrolysis shaft / polymer

20ℓ 반응기에 규산 나트륨 용액(영일화성, 3호) 2kg과 순수 11.3kg을 투입 교반하여 6중량부 희석 규산 나트륨 용액을 제조한다. 활성화시킨 양이온교환 수지 50L가 탑재된 컬럼에 기 제조한 6중량% 규산 나트륨 용액을 10ml/min의 속도로 컬럼 위에서 아래로 통과시켜 규산 용액을 제조한다. 기 제조된 규산 용액를 20ℓ 반응기에 투입하여 40℃로 유지하면서, 알콕시 실란의 일종인 r-글리시독시프로필트리메톡시실란 (신에츠 KBM-403) 7kg을 정량펌프를 이용하여 20㎖/min의 속도로 투입하고, 그 온도에서 12시간 동안 가수분해 축·중합반응하여 반응물을 제조한 한에 상온까지 냉각한다. 상기 가수분해는 용매와 촉매를 이용할 수 있는데, 용매로는 에탄올을 사용하고 촉매로는 산계 촉매인 염산(HCl)을 사용한다. 용매는 35 중량부 정도 첨가하며, 촉매는 1 중량부 정도 첨가한다.2 kg of a sodium silicate solution (Young Il Chemical Co., Ltd., No. 3) and 11.3 kg of pure water were added and stirred to prepare a 6 weight part diluted sodium silicate solution. A 6 wt% sodium silicate solution previously prepared in the column equipped with the activated cation exchange resin 50 L is passed downward from the column at a rate of 10 ml / min to prepare a silicate solution. 7 kg of r-glycidoxypropyltrimethoxysilane (Shin-Etsu KBM-403), which is a kind of alkoxysilane, was introduced into a 20-liter reactor at a rate of 20 ml / min using a metering pump And the reaction mixture is hydrolyzed and polymerized at the temperature for 12 hours to cool the reaction mixture to room temperature. The hydrolysis can use a solvent and a catalyst. Ethanol is used as a solvent and hydrochloric acid (HCl) as an acid catalyst is used as the catalyst. About 35 parts by weight of a solvent is added, and about 1 part by weight of a catalyst is added.

<실시예 1>&Lt; Example 1 >

10L 반응기에 기 제조한 가수분해 축·중합물 5kg을 투입하여 교반하면서 10중량% 규산 칼륨 수용액(영일화성, Ps-C200) 1kg을 10ml/min 속도로 천천히 투입하여 4시간동안 교반한다. 이 용액에 폴리옥시에틸렌(10) 세틸/스테아릴 에테르(Polyoxyethylene(10) cetyl/stearyl ether) 50g을 투입하여 2시간 동안 혼합 제조한다.5 kg of the hydrolysis-condensation polymer prepared in the above-mentioned 10 L reactor was charged and 1 kg of a 10 wt% aqueous solution of potassium silicate (PS-C200, manufactured by Young Il Chemical Co., Ltd.) was slowly added thereto at a rate of 10 ml / min and stirred for 4 hours. To this solution, 50 g of polyoxyethylene (10) cetyl / stearyl ether (Polyoxyethylene (10) cetyl / stearyl ether) is added and mixed for 2 hours.

<실시예 2>&Lt; Example 2 >

10L 반응기에 기 제조한 가수분해 축·중합물 4kg을 투입하여 교반하면서 10중량% 리튬 실리케이트 수용액(영일화성, LS-L100) 4kg을 10ml/min 속도로 천천히 투입하여 4시간동안 교반한다. 이 용액에 폴리옥시에틸렌(5) 이소스테아릴 에테르(Polyoxyethylene(5) isostearyl ether) 30g을 투입하여 2시간 동안 혼합 제조한다.4 kg of the hydrolysis-condensation polymer prepared in the above-mentioned 10 L reactor was charged and 4 kg of a 10 wt% aqueous solution of lithium silicate (LS-L100) was slowly added thereto at a rate of 10 ml / min and stirred for 4 hours. 30 g of polyoxyethylene (5) isostearyl ether is added to this solution and mixed for 2 hours.

<실시예 3>&Lt; Example 3 >

10L 반응기에 기 제조한 가수분해 축·중합물 5kg을 투입하여 교반하면서 10중량% 규산 칼륨 수용액(영일화성, Ps-C200) 2kg와 10중량% 리튬 실리케이트 수용액(영일화성, LS-L100) 2kg을 한꺼번에 투입하여 4시간동안 교반한다. 이 용액에 폴리옥시에틸렌(5) 이소스테아릴 에테르(Polyoxyethylene(5) isostearyl ether) 30g을 투입하여 2시간 동안 혼합 제조한다.5 kg of the hydrolysis-condensation polymer prepared in the above-mentioned 10 L reactor was charged and 2 kg of a 10 wt% aqueous solution of potassium silicate (PS-C200) and 2 kg of a 10 wt% lithium silicate aqueous solution (Youngil Chemical Co., LS-L100) And the mixture is stirred for 4 hours. 30 g of polyoxyethylene (5) isostearyl ether is added to this solution and mixed for 2 hours.

상기의 실시예 1 내지 실시예 3의 특성을 보다 용이하게 파악할 수 있도록 본 발명의 실시예들과 비교할 수 있는 비교예들을 제시한 것이다.In order to more easily grasp the characteristics of the first to third embodiments, comparative examples which can be compared with the embodiments of the present invention are presented.

<비교예 1>&Lt; Comparative Example 1 &

유성 피막 양생제를 본 발명과 비교하기 위하여 시판되고 있는 Hydro Caron Rein(석유 수지) 20 중량부, 이산화티탄(TiO2) 5 중량부, 유기 용제 75 중량부로 이루어진 수지 조성물을 상기 실시예와 동일한 방법으로 유성 피막 양생제 조성물을 제조하였다.In order to compare the oily film curing agent with the present invention, a resin composition comprising 20 parts by weight of Hydro Caron Rein (petroleum resin), 5 parts by weight of titanium dioxide (TiO2) and 75 parts by weight of an organic solvent, An oily film curing agent composition was prepared.

아래의 시험예들은 본 발명에 따른 실시예 1 내지 실시예 3의 특성을 보다 용이하게 파악할 수 있도록 본 발명에 따른 실시예들과 비교예 1의 특성을 비교한 실험결과들을 나타낸 것이다.The following test examples show experimental results comparing characteristics of the embodiment of the present invention and the characteristics of the first comparative example so that the characteristics of the first to third embodiments of the present invention can be grasped more easily.

<시험예 1>&Lt; Test Example 1 >

실시예 1 내지 실시예 3에 따라 제조된 침투성 무기계 도막 양생제 조성물과 비교예 1에서 제조한 유기 피막 양생제 조성물의 특성을 비교하기 위하여, 상기에서 설명한 실시예 1 내지 실시예 3에 따라 제조된 침투성 무기계 도막 양생제 조성물과 비교예 1에 의하여 제조된 유기 피막 양생제 조성물을 KS F 2540에 의하여 건조시간, 컨시스턴시, 피막성질 및 저장안정도 시험을 수행하였고, KS F 2406에 의하여 수분손실량(보수능력) 시험을 수행하였고, KS F 2423 및 KS F 4042에 의하여 콘크리트 공시체에 실시예 1 내지 3 및 비교예 1의 조성물을 도포한 후 콘크리트 쪼갬 인장 강도 시험 및 염화물 이온 침투저항성 시험을 수행하여 각각의 결과를 하기 표 1에 나타내었다.In order to compare the characteristics of the permeable inorganic coating film curing agent composition prepared according to Examples 1 to 3 and the organic film curing agent composition prepared in Comparative Example 1, The drying time, the consistency, the film properties and the storage stability test of the composition of the permeable inorganic coating film curing agent and the organic film curing agent composition prepared in Comparative Example 1 were carried out by KS F 2540 and the water loss amount ), And the compositions of Examples 1 to 3 and Comparative Example 1 were applied to concrete specimens by KS F 2423 and KS F 4042, and then subjected to concrete splitting tensile strength test and chloride ion penetration resistance test, Are shown in Table 1 below.

실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 비교예 1Comparative Example 1 건조시간 (시:분)Drying time (hour: minute) 2:302:30 2:252:25 2:252:25 2:552:55 컨시스턴시Consistency 분무가능Sprayable 분무가능Sprayable 분무가능Sprayable 분무가능Sprayable 저장안정도 (90일)Storage stability (90 days) 이상없음clear 이상없음clear 이상없음clear 이상없음clear 수분손실량(kg/m2)Water loss (kg / m 2 ) 0.420.42 0.400.40 0.410.41 0.420.42 콘크리트 쪼갬 인장 강도(kgf/cm2)Concrete splitting tensile strength (kgf / cm 2 ) 3.53.5 3.73.7 3.83.8 3.03.0 염화물이온침투저항성(Coulombs)Chloride ion penetration resistance (Coulombs) 600600 580580 550550 16001600

상기 표 1에 나타난 바와 같이, 실시예 1내지 실시예 3에 따라 제조된 침투성 무기계 도막 양생제 조성물은 비교예 1에 따라 제조된 조성물에 비하여 동등 이상의 물성치를 보였으나, 염화물 이온 침투 저항성 및 쪼갬 인장 강도는 매우 월등한 값을 보였다. As shown in Table 1, the permeable inorganic coating film curing agent compositions prepared according to Examples 1 to 3 exhibited properties equivalent to or more than those of the composition prepared according to Comparative Example 1, but the chloride ion penetration resistance and splitting tensile strength The intensity was very good.

이상, 본 발명의 바람직한 실시예를 들어 상세하게 설명하였으나, 본 발명은 상기 실시예에 한정되는 것은 아니며, 본 발명의 기술적 사상의 범위 내에서 당 분야에서 통상의 지식을 가진 자에 의하여 여러 가지 변형이 가능하다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, This is possible.

Claims (6)

침투성 무기계 도막 양생제 조성물로서,
가수분해 축·중합물 중량에 대하여, 20~50중량부의 규산 용액 및 1~30중량부의 알콕시 실란을 혼합하고, 용매로서 에탄올 35 중량부, 및 촉매 1 중량부를 첨가하여 상온 ~ 60℃로 유지하면서 반응시켜 나노 크기(<10nm)의 실리카 입자와 도막 골격을 동시에 형성할 도막을 형성할 수 있는 가수분해 축·중합물을 형성하고,
상기 가수분해 축·중합물 400 ~ 500 중량부에, 액상 규산나트륨(sodium silicate), 액상 규산칼륨(potassium silicate), 및 리튬 실리케이트(lithium silicate)로 이루어진 군에서 선택된 1종 이상으로 이루어진 알카리 실리케이트 수용액 100 ~ 400 중량부, 및 계면활성제 3 ~ 5중량부를 혼합하여 제조하고,
여기서, 콘크리트 표면에 상기 침투성 무기계 도막 양생제 조성물을 도포한 후 콘크리트 쪼갬 인장 강도 시험 및 염화물 이온 침투저항성 시험을 수행 한 결과 콘크리트 쪼갬 인장 강도(kgf/cm2)는 3.5 ~ 3.8 범위이고, 염화물이온침투저항성(Coulombs)은 550 ~ 600 범위인 것을 특징으로 하는 침투성 무기계 도막 양생제 조성물.
As the permeable inorganic coating film curing agent composition,
20 to 50 parts by weight of a silicic acid solution and 1 to 30 parts by weight of alkoxysilane were mixed with respect to the weight of the hydrolysis axis and polymer, and 35 parts by weight of ethanol as a solvent and 1 part by weight of a catalyst were added. To form a hydrolysis-condensation polymer capable of forming a coating film for simultaneously forming nano-sized (<10 nm) silica particles and a coating film skeleton,
An alkaline silicate aqueous solution 100 (hereinafter, referred to as &quot; aqueous alkaline silicate solution &quot;) consisting of at least one selected from the group consisting of liquid sodium silicate, potassium silicate, and lithium silicate is added to 400 to 500 parts by weight of the hydrolysis- To 400 parts by weight of a surfactant, and 3 to 5 parts by weight of a surfactant,
The concrete splitting tensile strength test and the chloride ion penetration resistance test were carried out after coating the surface of the concrete with the permeable inorganic coating curing agent composition. As a result, the concrete splitting tensile strength (kgf / cm 2 ) was in the range of 3.5 to 3.8, Wherein the penetration resistance (Coulombs) is in the range of 550 to 600.
삭제delete 삭제delete 삭제delete 삭제delete 침투성 무기계 도막 양생제 조성물 제조 방법으로서,
가수분해 축·중합물 중량에 대하여, 20~50중량부의 규산 용액 및 1~30중량부의 알콕시 실란을 혼합하고, 용매로서 에탄올 35 중량부, 및 촉매 1 중량부을 첨가하여 상온 ~ 60℃로 유지하면서 반응시켜 나노 크기(<10nm)의 실리카 입자와 도막 골격을 동시에 형성할 도막을 형성할 수 있는 가수분해 축·중합물을 형성하는 단계;
상기 가수분해 축·중합물 400 ~ 500 중량부에, 액상 규산나트륨(sodium silicate), 액상 규산칼륨(potassium silicate), 및 리튬 실리케이트(lithium silicate)로 이루어진 군에서 선택된 1종 이상으로 이루어진 알카리 실리케이트 수용액 100 ~ 400 중량부를 첨가하여 교반 혼합하는 단계; 및
상기 교반 혼합된 것에 계면활성제 3 ~ 5중량부를 더 첨가하여 교반 혼합하는 단계를
포함하여 제조되며,
여기서, 콘크리트 표면에 상기 침투성 무기계 도막 양생제 조성물을 도포한 후 콘크리트 쪼갬 인장 강도 시험 및 염화물 이온 침투저항성 시험을 수행 한 결과 콘크리트 쪼갬 인장 강도(kgf/cm2)는 3.5 ~ 3.8 범위이고, 염화물이온침투저항성(Coulombs)은 550 ~ 600 범위인
것을 특징으로 하는 침투성 무기계 도막 양생제 조성물 제조 방법.
A method for producing a permeable inorganic coating film curing agent composition,
20 to 50 parts by weight of a silicic acid solution and 1 to 30 parts by weight of alkoxysilane were mixed with respect to the hydrolysis axis / polymer weight, 35 parts by weight of ethanol as a solvent and 1 part by weight of a catalyst were added, To form a hydrolysis-condensation polymer capable of forming a coating film for simultaneously forming nano-sized (<10 nm) silica particles and a coating film skeleton;
An alkaline silicate aqueous solution 100 (hereinafter, referred to as &quot; aqueous alkaline silicate solution &quot;) consisting of at least one selected from the group consisting of liquid sodium silicate, potassium silicate, and lithium silicate is added to 400 to 500 parts by weight of the hydrolysis- To 400 parts by weight, and stirring the mixture; And
3 to 5 parts by weight of a surfactant is further added to the above stirred mixture, followed by stirring and mixing
&Lt; / RTI &gt;
The concrete splitting tensile strength test and the chloride ion penetration resistance test were carried out after coating the surface of the concrete with the permeable inorganic coating curing agent composition. As a result, the concrete splitting tensile strength (kgf / cm 2 ) was in the range of 3.5 to 3.8, Penetration resistance (Coulombs) ranged from 550 to 600
&Lt; / RTI &gt; by weight based on the total weight of the composition.
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