KR100778933B1 - Ground materials with high elasticity and durability, and manufacturing method of the ground materials, and construction method using the ground materials - Google Patents
Ground materials with high elasticity and durability, and manufacturing method of the ground materials, and construction method using the ground materials Download PDFInfo
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
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- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
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Abstract
Description
도 1은 본 발명에 따른 고탄성 고내구성을 지닌 바닥재 조성물의 제조공정도.1 is a manufacturing process of the flooring composition having a high elasticity and high durability according to the present invention.
도 2는 본 발명에 따른 고탄성 고내구성을 지닌 바닥재의 제조공정도.Figure 2 is a manufacturing process of the flooring material having a high elasticity and high durability according to the present invention.
도 3은 본 발명에 따른 고탄성 고내구성을 지닌 바닥재를 설치한 상태의 단면도.Figure 3 is a cross-sectional view of a state installed with a high elastic high durability flooring according to the invention.
[도면의 주요부분에 대한 부호의 설명][Explanation of symbols on the main parts of the drawings]
1 : 콘크리트 바닥면 2 : 접착제1: concrete floor 2: adhesive
3 : 바닥재 4 : 코팅층3: flooring material 4: coating layer
본 발명은 탄성 바닥재에 관한 것으로서, 더욱 상세하게는 메틸렌 디이소시아네이트를 주성분으로 하는 프리폴리머용액과, 폴리에테르폴리올을 주성분으로 하 는 수지용액을 일정 비율로 혼합한 고탄성 고내구성을 지닌 바닥재 조성물을 구성하고, 이 조성물을 표피 일체 성형 폼(integral skin foam)기법으로 제조함으로써 농구장, 사무실, 병원, 호텔, 학교, 골프장, 자전거 전용도로, 조깅코스 등의 바닥 면에 시공할 경우 고탄성 고내구성을 지니게 될 뿐만 아니라, 설치 시 주변 환경 및 계절의 영향을 받지 않게 되어 시공 상 편리함을 제공할 수 있도록 하는 고탄성 고내구성을 지닌 바닥재와 그 바닥재의 제조방법 및 그 바닥재를 이용한 시공방법에 관한 것이다.The present invention relates to an elastic flooring material, and more particularly, to constitute a flooring composition having a high elasticity and high durability in which a prepolymer solution containing methylene diisocyanate as a main component and a resin solution containing polyether polyol as a main component are mixed at a predetermined ratio. In addition, the composition is manufactured by using an integral skin foam technique, and thus, when applied to the floor surface of a basketball court, office, hospital, hotel, school, golf course, bicycle path, jogging course, etc., it has high elasticity and high durability. In addition, the present invention relates to a flooring material having a high elasticity and high durability, and a method of manufacturing the flooring material and a construction method using the flooring material, which are not affected by the surrounding environment and season during installation, thereby providing convenience in construction.
일반적으로 농구장, 사무실, 병원, 호텔, 학교, 골프장, 자전거 전용도로, 조깅코스 등에 널리 사용되고 있는 탄성 바닥재는 이액형 우레탄, 우레탄 칩 또는 고무 칩을 사용한 제품이 널리 사용되고 있으나, 이러한 제품들은 시공 공정이 복잡하고 까다로울 뿐만 아니라 주변 환경 및 계절의 영향을 많이 받아 시공 상 많은 제약을 받는다.In general, elastic flooring materials widely used in basketball courts, offices, hospitals, hotels, schools, golf courses, bicycle paths, jogging courses, etc. are widely used products using two-component urethane, urethane chips, or rubber chips. Not only is it complicated and demanding, but it is also heavily constrained by the environment and seasons.
즉, 액상 타입의 이액형 우레탄을 주 재질로 하는 탄성 바닥재의 시공 과정은 하지처리, 프라이머 도포, 1차 중도 도포, 1차 양생, 2차 중도도포, 2차 양생, 탑 코팅처리, 3차 양생, 라인마킹, 4차 양생하여 시공을 완료하는 복잡하고 번거러운 과정을 거치는 문제점이 있다.In other words, the construction process of the elastic flooring material mainly composed of liquid-type two-component urethane is based on the base treatment, primer coating, primary intermediate coating, primary curing, secondary intermediate coating, secondary curing, top coating treatment, and tertiary curing. There is a problem of going through the complicated and cumbersome process of completing the construction by marking the line and curing the fourth.
또한, 우레탄 칩 또는 고무칩을 재질로 하는 탄성 바닥재의 시공 과정은 하지처리, 프라이머 도포, 바인더와 고무 칩/우레탄 칩 교반, 포설, 열롤러를 이용하여 평탄화 작업 실시, 1차 양생, 실링재로 마감처리, 탑코팅 처리, 경화, 라인 마킹, 2차 양생하여 시공을 완료하는 복잡하고 번거러운 과정을 거치는 문제점이 있 다.In addition, the construction process of the elastic flooring material made of urethane chips or rubber chips may be ground treatment, primer coating, binder and rubber chip / urethane chip stirring, laying, flattening work using heat rollers, primary curing, and finishing with sealing materials. There is a problem of going through the complicated and cumbersome process of finishing the construction by treatment, top coating treatment, curing, line marking, secondary curing.
또한, 기존 탄성 바닥재 제품의 경우 획일화된 제품구성, 복잡한 시공 방법과 계절적인 시공성의 제약 등이 수반되고 있다. In addition, the existing elastic flooring products are accompanied by a uniform product configuration, complex construction methods and seasonal constructional constraints.
즉, 현재 사용되고 있는 제품의 경우에는 1액형의 액상 바인더와 고무칩을 사용하거나, 주제와 경화제로 구성된 2액형의 액상제품을 사용하므로 배합비 준수 등 취급이 어렵고 제품의 혼합, 도포, 다짐에 따른 별도의 추가 장비가 필요하며, 배합비 미준수시에는 요구되어지는 물성을 만족하지 못하여 시공 후 하자 발생의 가능성이 높다. In other words, currently used products use one-component liquid binders and rubber chips, or two-component liquid products composed of a main agent and a curing agent. Additional equipment is required, and if the compounding ratio is not met, it is not possible to meet the required physical properties, so the possibility of defects after construction is high.
또한, 다단계의 시공공정을 거치므로 작업공정이 까다롭고 복잡하며 각단계별 제품의 숙성 및 경화시간이 많이 소요되어 전반적인 시공기간이 길어지고 추가적인 경비소요가 예상되며, 액상의 제품을 사용하므로 저온에서 제품경화가 어렵고 하자 발생 가능성이 높아지는 문제점이 있는 것이다.In addition, the process is difficult and complicated due to the multi-stage construction process, and the overall construction period is long due to the aging and hardening time of each product. Hardening is difficult and there is a problem that the probability of occurrence of defects increases.
본 발명은 상기와 같은 문제점을 해소하기 위한 것으로 메틸렌 디이소시아네이트를 주성분으로 하는 프리폴리머용액과, 폴리에테르폴리올을 주성분으로 하는 수지용액을 일정 비율로 혼합한 고탄성 고내구성을 지닌 탄성 바닥재 조성물을 구성하고, 이 조성물을 표피 일체 성형 폼(integral skin foam)기법으로 제조함으로써 농구장, 사무실, 병원, 호텔, 학교, 골프장, 자전거 전용도로, 조깅코스 등의 바닥 면에 시공할 경우 고탄성 고내구성을 지니게 될 뿐만 아니라, 설치 시 주변 환경 및 계절의 영향을 받지 않게 되어 시공 상 편리함을 제공할 수 있도록 하는 것을 기술적 과제로 한다.
본 발명은 전체 경도, 내후성, 신장률, 인장강도를 결정하며 경화제로서의 기능을 갖는 20~26% NCO 변성 메틸렌 디이소시아네이트 100중량%로 이루어진 프리폴리머용액과, 우수한 기계적 물성 및 안정된 고탄성 폼을 얻기 위한 중량 평균 분자량 3,000~5,000의 폴리에테르폴리올 50~60wt%와, 발포 시 폼의 수축 현상을 없애고 적절한 탄성, 경도, 통기성을 지니며 아크릴 단량체를 분산, 중합하여 제조된 수산기가 25~35mg KOH/g 인 코폴리머 폴리올 15~25 wt%와, 폼의 발포 반응 시 결합력을 향상시켜 주는 사슬 연장제 5~10wt%와, 폼의 발포 반응 시 유화작용에 의한 원료성분의 분산성 향상, 셀의 안정화, 반응 중 생성되는 가스의 방출, 셀의 깨짐성 등을 개선하기 위한 실리콘 정포제 0.1~1wt%와, 원활한 작업성과 안정된 폼을 형성하기 위한 아민촉매 1~2wt%와, 폼의 밀도를 결정하는 발포제 2~20wt%로 이루어진 수지용액과, 상기 프리폴리머용액과 수지용액을 0.4~0.6 : 1 의 비율로 혼합하여 이루어진 것을 특징으로 한다.
또한, 본 발명은 20~26% NCO 변성 메틸렌 디이소시아네이트 100중량%로 이루어진 프리폴리머용액과, 중량 평균 분자량 3,000~5,000의 폴리에테르폴리올 50~60wt%와, 코폴리머 폴리올 15~25wt%와, 사슬 연장제 5~10wt%와, 실리콘 정포제 0.1~1wt%와, 아민촉매 1~2wt%와, 발포제 2~20wt%로 이루어진 수지용액과, 상기 프리폴리머용액과 수지용액을 0.4~0.6:1 의 비율로 혼합된 조성물을 특정 형태의 금형 내에 투입하는 원료투입공정과, 상기 원료투입공정 후, 30~50℃ 온도에서 5~7분 동안 숙성시키는 경화과정과, 상기 경화공정 후, 금형으로부터 폼을 분리시키는 탈형공정과, 상기 탈형공정 후, 일정 규정으로 재단하는 재단공정으로 이루어지는 특징으로 한다.
또한, 본 발명은 콘크리트 바닥면 위에 에폭시, 우레탄, 핫멜트(Hot-Melt) 중에서 선택된 1종의 접착제를 2~3mm 두께로 도포하는 접착제 도포공정과, 상기 접착제 위에 20~26% NCO 변성 메틸렌 디이소시아네이트 100중량%로 이루어진 프리폴리머용액과, 중량 평균 분자량 3,000~5,000의 폴리에테르폴리올 50~60wt%와, 코폴리머 폴리올 15~25wt%와, 사슬 연장제 5~10wt%와, 실리콘 정포제 0.1~1wt%와, 아민촉매 1~2wt%와, 발포제 2~20wt%로 이루어진 수지용액과, 상기 프리폴리머용액과 수지용액을 0.4~0.6:1의 비율로 혼합된 조성물을 금형 내에 투입하여 30~50℃ 온도에서 5~7분 동안 경화시킨 후, 탈형시켜 일정 규정으로 재단하여 제조된 탄성 바닥재의 상측 표면에 유색스프레이 코팅 또는 표면 스크린 인쇄 중에서 1종이 선택된 코팅층이 형성된 탄성 바닥재를 부착하여서 이루어지는 것을 특징으로 한다.The present invention is to solve the above problems and to constitute an elastic flooring composition having a high elasticity and high durability by mixing a prepolymer solution containing a methylene diisocyanate as a main component and a resin solution containing a polyether polyol at a predetermined ratio, The composition is manufactured by the integral skin foam technique, so that when applied to the floor surface of a basketball court, office, hospital, hotel, school, golf course, bicycle path, jogging course, etc., it has high elasticity and high durability. As a technical task, it is possible to provide convenience in construction since it is not influenced by the surrounding environment and season during installation.
The present invention determines the overall hardness, weather resistance, elongation, tensile strength and the weight average to obtain a prepolymer solution consisting of 100% by weight of 20 ~ 26% NCO modified methylene diisocyanate having a function as a curing agent, and excellent mechanical properties and stable high elastic foam 50 ~ 60wt% of polyether polyol with molecular weight of 3,000 ~ 5,000 and 25 ~ 35mg KOH / g of hydroxyl group produced by dispersing and polymerizing acrylic monomers to remove foam shrinkage and have proper elasticity, hardness and breathability. 15 to 25 wt% of polymer polyol, 5 to 10 wt% of chain extender which improves the bonding force during foaming reaction of foam, and improved dispersibility of raw materials by emulsification during foaming reaction of foam, stabilization of cell Determination of 0.1 ~ 1wt% of silicon foam stabilizer to improve emission of generated gas, crack of cell, etc., 1 ~ 2wt% of amine catalyst to form smooth workability and stable foam, and density of foam It is characterized in that the resin solution consisting of 2 to 20wt% of the blowing agent, and the prepolymer solution and the resin solution is mixed in a ratio of 0.4 ~ 0.6: 1.
In addition, the present invention is a prepolymer solution consisting of 100% by weight of 20 to 26% NCO-modified methylene diisocyanate, 50 to 60 wt% of a polyether polyol having a weight average molecular weight of 3,000 to 5,000, 15 to 25 wt% of a copolymer polyol, and chain extension The resin solution consisting of the 5-10 wt%, 0.1-1 wt% of the silicon foam stabilizer, 1-2 wt% of the amine catalyst, and 2-20 wt% of the blowing agent, and the prepolymer solution and the resin solution at a ratio of 0.4-0.6: 1. A raw material input process for injecting the mixed composition into a mold of a specific form, a curing process for aging for 5-7 minutes at a temperature of 30 ~ 50 ℃ after the raw material input process, and after the curing process to separate the foam from the mold It is characterized by consisting of a demolding step and a cutting step of cutting according to a predetermined rule after the demolding step.
In addition, the present invention is an adhesive coating process for applying a thickness of one to three adhesives selected from epoxy, urethane, hot-melt (Hot-Melt) on the concrete floor surface, and 20 to 26% NCO modified methylene diisocyanate on the adhesive A prepolymer solution composed of 100% by weight, 50 to 60 wt% of a polyether polyol having a weight average molecular weight of 3,000 to 5,000, 15 to 25 wt% of a copolymer polyol, 5 to 10 wt% of a chain extender, and 0.1 to 1 wt% of a silicone foam stabilizer And a resin solution consisting of 1 to 2 wt% of an amine catalyst and 2 to 20 wt% of a blowing agent, and a composition mixed with the prepolymer solution and the resin solution at a ratio of 0.4 to 0.6: 1 in a mold at a temperature of 30 to 50 ° C. After curing for 5 to 7 minutes, by demolding to the upper surface of the elastic flooring prepared by a predetermined rule made by attaching the elastic flooring material formed with a coating layer selected from colored spray coating or surface screen printing The features.
이하 본 발명에 따른 고탄성 고내구성을 지닌 바닥재와 그 바닥재의 제조방법 및 그 바닥재를 이용한 시공방법을 첨부된 도면 1 내지 도 3에 의해 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying
도 1은 본 발명에 따른 고탄성 고내구성을 지닌 바닥재 조성물의 제조공정도로서, 크게는 본 발명의 탄성 바닥재에 있어 신율과 인장강도를 결정하며 경화제로서의 기능을 갖는 프리폴리머(Prepolymer)용액과, 본 발명의 탄성 바닥재에 있어 표피 일체 성형 폼(integral skin foam)기법으로 바닥재를 제조 가능하게 하며 고탄성 고내구성을 지니도록 하는 수지용액으로 이루어진다.1 is a manufacturing process diagram of a high elasticity high durability flooring composition according to the present invention, largely determines the elongation and tensile strength of the elastic flooring of the present invention and a prepolymer solution having a function as a curing agent, and the elasticity of the present invention In the flooring material, it is possible to manufacture the flooring material using an integral skin foam technique and is made of a resin solution that has high elasticity and high durability.
상기 프리폴리머용액은 20~26% NCO 변성(Modified) 메틸렌 디이소시아네이트 100중량%로 이루어진 것으로서, 전체 경도와 내후성, 신장률 등 물성을 좌우하는 재료로 N=C=O결합(이하 'NCO'라함)을 사용하였으며, 본 발명의 바닥재에서는 20~26% NCO 변성 메틸렌 디이소시아네이트를 사용한다.The prepolymer solution is composed of 20 to 26% NCO-modified methylene diisocyanate 100% by weight, and the N = C = O bond (hereinafter referred to as 'NCO') as a material that influences the physical properties such as overall hardness, weather resistance, elongation In the flooring of the present invention, 20 to 26% NCO-modified methylene diisocyanate is used.
상기 수지용액은, 안정되고 기계적 물성이 우수한 고탄성 표피 일체 성형 폼을 얻기 위한 중량 평균 분자량 3,000~5,000인 폴리에테르폴리올(이하 '분자량 3,000~5,000의 폴리에테르폴리올'로 약칭한다.) 50~60wt%와, 발포되는 표피 일체 성형 폼의 수축 현상을 없애고 적절한 탄성, 경도, 통기성을 지니도록 하기 위한 코폴리머 폴리올(Copolymer Polyol) 15~25wt%와, 고탄성 표피 일체 성형 폼의 발포 반응 시 결합력을 향상시켜 주는 사슬 연장제(Chain Extender) 5~10wt%와, 고탄성 표피 일체 성형 폼의 발포 반응 시 유화작용에 의한 원료성분의 분산성 향상, 셀의 안정화, 표면 장력 감소로 반응 중 생성되는 가스의 방출, 셀의 깨짐성 등을 개선하기 위한 실리콘 정포제(Silicone Surfactant) 0.1~1wt%와, 원활한 작업성과 안정된 표피 일체 성형 폼을 형성시키기 위한 아민촉매 1~2wt%를 반응조에 차례로 투입한 후, 200~300rpm의 속도를 유지하며 20~30분간 교반하여 균질화한 다음, 상기 반응조에 고탄성 표피 일체 성형 폼의 밀도를 결정하는 발포제 2~20wt%를 첨가하여 5분간 저속 교반하여 균질화함으로써 본 발명의 고탄성 고내구성을 지닌 바닥재 조성물을 제조를 완료한다.The resin solution is a polyether polyol having a weight average molecular weight of 3,000 to 5,000 for obtaining a highly elastic epidermal integrally molded foam having excellent mechanical properties (hereinafter abbreviated as 'polyether polyol having a molecular weight of 3,000 to 5,000'). 50 to 60 wt% And 15-25 wt% of copolymer polyol to remove the shrinkage of the foamed integrally molded foam to have proper elasticity, hardness, and breathability, and to improve the bonding force during the foaming reaction of the highly elastic skin-molded foam. 5-10 wt% of Chain Extender and the expansion of the high elastic skin-integral foam, the dispersibility of the raw material components by the emulsification, the stabilization of the cell, the release of gas generated during the reaction by the reduction of the surface tension, Half of silicon surfactant 0.1 ~ 1wt% to improve cell cracking, and 1 ~ 2wt% of amine catalyst for forming smooth workability and stable epidermal molded foam After being sequentially added to the coagulation, the solution was homogenized by stirring for 20 to 30 minutes while maintaining the speed of 200 to 300 rpm, and then, by adding the blowing
상기 분자량 3,000~5,000의 폴리에테르폴리올은 50wt% 미만으로 첨가되어 질 경우에는 표피 일체 성형 폼의 인장이나 경도가 떨어지고 60%이상으로 첨가되어 질 때에는 탄성이 지나치게 높아져 충격 흡수성이 저하되므로 50~60wt% 범위내에서 첨가하는 것이 바람직하다.When the polyether polyol having a molecular weight of 3,000 to 5,000 is added in less than 50wt%, the tensile or hardness of the integrally molded foam is reduced, and when added in more than 60%, the elasticity becomes too high and the impact absorbency is lowered. It is preferable to add in the range.
상기 코폴리머 폴리올은 아크릴 단량체(Acryl Monomer)를 분산, 중합하여 제조된 수산기가(OH. NO)가 25~35mg KOH/g 인 것으로서, 상기 수산기가 (OH. NO) 가 25~35mg KOH/g 인 코폴리머 폴리올이 15wt% 미만으로 첨가되어질 경우 표피일체 성형폼의 탄성 및 통기성이 떨어져 고탄성의 효과를 얻을 수 없으며, 25wt% 이상으로 첨가 되어질 때에는 폼의 경도가 지나치게 높아지기 때문에 15~25wt% 범위 내에서 첨가하는 것이 바람직하다.The copolymer polyol has a hydroxyl value (OH. NO) of 25 to 35 mg KOH / g prepared by dispersing and polymerizing an acrylic monomer (Acryl Monomer), and the hydroxyl group (OH. NO) is 25 to 35 mg KOH / g. If the copolymer polyol is added at less than 15wt%, the elasticity and breathability of the epidermal integral foam cannot be obtained, and high elasticity effect cannot be obtained.When it is added at 25wt% or more, the hardness of the foam is too high, so it is within the range of 15 ~ 25wt%. It is preferred to add at.
상기 사슬 연장제는 2가의 알콜이나 아민류가 사용되며, 5wt% 미만으로 첨가 되어 질 때에는 가교도가 떨어져 폼 내부에 크랙(Crack) 현상이 발생하고, 10wt% 이상으로 첨가 되어 질 때에는 폼의 경도가 지나치게 높아진다.As the chain extender, dihydric alcohol or amines are used, and when it is added below 5wt%, the crosslinking degree decreases, so cracking occurs inside the foam, and when it is added above 10wt%, the hardness of the foam is excessive. Increases.
상기 실리콘 정포제는 표피 일체 성형 폼의 안정제로 통상적으로 사용되는 유기실리콘 코폴리머(copolymer)계 정포제는 모두 사용 가능하며, 0.1wt% 미만으로 첨가될 경우 안정된 내부 셀(Cell)를 가진 표피일체 성형폼을 얻을 수 없으며, 1wt% 이상으로 첨가될 경우에는 지나친 셀의 안정화로 인해 표피일체 성형폼의 수축을 일으킬 수 있고, 촉매의 활성도를 저하시킬 수 있기 때문에 0.1~1wt% 범위내에서 첨가하는 것이 바람직하다The silicone foam stabilizers are all organosilicon copolymer-based foam stabilizers commonly used as stabilizers of the integrally molded foam, and when added to less than 0.1wt%, the epidermal body has a stable inner cell. Forming foam can not be obtained, when added in more than 1wt% can cause shrinkage of the integral skin foam due to excessive stabilization of the cell, and may decrease the activity of the catalyst, so it is added within the range of 0.1 ~ 1wt% It is desirable
상기 아민촉매는 트리에틸렌디아민(Triethylene diamine) 과 비스 디메틸아미노 에틸 에테르(Bis-dimethylamino ethyl ether) 70wt%와, 디프로필렌 글리콜(Dipropylene Glycol) 30wt%로 이루어진 3급 아민(Tertiary amine)촉매를 병행 사용하는 것으로서, 1wt% 미만으로 사용될 경우에는 반응이 지연되어 경화가 불량하여 작업성이 좋지 않고, 2wt% 이상으로 첨가되어 질 때에는 반응이 너무 빠르게 진행되어 표피 일체 성형 폼의 내부 반응열이 증가하여 셀이 균일 및 안정하게 생성되지 못함으로써 제품불량이 빈번하게 발생되는 문제점이 있기 때문에 1~2wt% 범위 내에서 첨가하는 것이 바람직하다. The amine catalyst is used in combination of a tertiary amine catalyst consisting of triethylene diamine and bis dimethylamino ethyl ether 70wt%, dipropylene glycol 30wt% When used at less than 1wt%, the reaction is delayed and the hardening is poor, resulting in poor workability, and when added at 2wt% or more, the reaction proceeds too fast to increase the heat of reaction inside the integrally molded foam. Since there is a problem that product defects frequently occur because it is not uniformly and stably generated, it is preferable to add the product within 1 to 2wt%.
상기 발포제는 물(H2O), 사이클로 펜테인(Cyclo Pentane), 1,1-디클로로-1-플루오로에탄(HCFC-141b), MC(Methylene Chloride) 등 통상적으로 발포 폼에 사용되는 발포제는 모두 사용 가능하다.The blowing agent is water (H 2 O), cyclo pentane (Cyclo Pentane), 1,1-dichloro-1-fluoroethane (HCFC-141b), MC (Methylene Chloride) foaming agents commonly used in foaming foam All are available.
상기 발포제를 2wt% 미만으로 사용할 경우 표피일체 성형폼의 밀도가 높아져 원료 소모가 많을 뿐만 아니라 폼 경도가 지나치게 높아져 탄성이 저하되는 문제가 있으며, 또한 발포제를 20wt% 초과하여 사용할 경우에는 밀도가 낮아지기 때문에 폼의 내구성 및 강도 등의 물성이 저하되어 고탄성 과 내구성을 지닌 바닥재로의 용도를 가지지 못하기 때문에 2~20wt% 범위 내에서 첨가하는 것이 바람직하다.If the foaming agent is used at less than 2wt%, the density of the skin integrally molded foam is increased, and thus the consumption of raw materials is increased, and the foam hardness is too high, resulting in a decrease in elasticity. In addition, when the foaming agent is used in excess of 20wt%, the density is lowered. It is preferable to add it within the range of 2 to 20wt% because physical properties such as the durability and strength of the foam are deteriorated and thus it has no use as a flooring material having high elasticity and durability.
상기와 같이 온도가 20℃ 인 프리폴리머용액과 수지용액을 구비한 상태에서 상기 프리폴리머용액과 수지용액을 0.4~0.6 : 1 의 비율로 반응조에 투입하여 5,000rpm으로 3~5초간 교반 및 균질시킴으로써 본 발명에 따른 고탄성 고내구성을 지닌 바닥재 조성물의 제조를 완료한다.The present invention is prepared by adding the prepolymer solution and the resin solution at a temperature of 20 ° C. to the reaction tank at a ratio of 0.4 to 0.6: 1 and stirring and homogenizing at 5,000 rpm for 3 to 5 seconds as described above. To complete the preparation of the flooring composition having a high elasticity and high durability according to.
본 발명에서 고탄성 고내구성을 지닌 바닥재를 제조하기 위해서는 이소시아네이트의 인덱스(Index)가 0.9~1.2가 바람직하며, 여기서 이소시아네이트 인덱스란 OH기를 가진 폴리올 과 NCO 기를 가진 이소시아네이트의 중량비를 말한다.In the present invention, the index of the isocyanate is preferably 0.9 to 1.2 in order to manufacture a floor material having high elasticity and high durability. Here, the isocyanate index refers to a weight ratio of a polyol having an OH group and an isocyanate having an NCO group.
즉, 상기 프리폴리머 용액과 수지용액의 비율이 0.4~0.6 : 1 이하가 되면 이소시아네이트의 인덱스(Index)가 0.9 이하가 되기 때문에 표피일체 성형 폼의 경도가 낮아져 탄성이 필요 이상으로 지나치게 높아지게 되어 탄성 바닥재로의 사용이 불가능하게 되고, 프리폴리머 용액과 수지용액의 비율이 0.4~0.6 : 1 이상이 되면 이소시아네이트 인덱스가 1.2 이상이 되기 때문에 표피일체 성형 폼의 표면에 보이드(Void)가 생기고, 폼의 경도가 높아져 탄성 및 내구성이 떨어지는 문제가 생기기 때문에 프리폴리머 용액과 수지용액을 0.4~0.6 : 1의 비율로 혼합하는 것이 바람직 하다.That is, when the ratio of the prepolymer solution and the resin solution is 0.4 to 0.6: 1 or less, since the index of the isocyanate is 0.9 or less, the hardness of the integral skin molding foam is lowered, and the elasticity becomes excessively higher than necessary, resulting in elastic flooring. When the ratio of the prepolymer solution and the resin solution is 0.4 to 0.6: 1 or more, the isocyanate index is 1.2 or more, so that voids are formed on the surface of the integral skin molded foam, and the hardness of the foam becomes high. It is preferable to mix the prepolymer solution and the resin solution at a ratio of 0.4 to 0.6: 1 because of problems of poor elasticity and durability.
다음은 본 발명에 따른 고탄성 고내구성을 지닌 바닥재 조성물을 이용하여 본 발명의 바닥재를 제조하는 과정을 첨부된 도 2에 의해 상세히 설명하면 다음과 같다.Next will be described in detail with reference to the accompanying Figure 2 the process of manufacturing the flooring of the present invention using a high elasticity durable flooring composition according to the present invention.
도 2는 본 발명에 따른 고탄성 고내구성을 지닌 바닥재의 제조공정도로서, 상기 프리폴리머용액과 수지용액을 0.4~0.6 : 1 의 비율로 교반 혼합된 조성물을 특정 형태를 유지하고 30~50℃ 범위에서 온도를 유지하는 금형내에 투입하는 원료투입공정을 진행한 다음, 5~7분 동안 숙성시키는 경화공정 후, 금형으로부터 폼을 분리시키는 탈형공정을 진행하여 일정 규정으로 재단한 다음, 상측 표면에 자외선 노출로 인한 바닥재의 황변 방지, 내마모성 향상 및 제품 외관의 미적 효과를 부여하기 위해 유색 스프레이 코팅 또는 표면인쇄 함으로써 본 발명에 따른 고탄성 고내구성을 지닌 바닥재의 제조를 완료하게 된다.Figure 2 is a manufacturing process diagram of a high elastic high durability flooring according to the present invention, the prepolymer solution and the resin solution in a ratio of 0.4 ~ 0.6: 1 stirred and mixed composition to maintain a specific form and temperature in the range 30 ~ 50 ℃ After the raw material input process put into the mold to be maintained, the curing process is aged for 5 to 7 minutes, and then the mold is removed to remove the foam from the mold. In order to prevent yellowing of the flooring, to improve abrasion resistance, and to give an aesthetic effect of the appearance of the product, a color spray coating or surface printing is completed to manufacture the flooring having high elasticity and high durability according to the present invention.
상기 제조 과정에서 금형으로부터 표피일체 성형 폼을 탈형 시 탈형 시간이 5분 이하가 되면 폼의 팽창이 생겨 제품 불량의 원인이 되며, 탈형 시간이 7분 이상이 되면 작업 시간이 길어져 경제성이 떨어지기 때문에 5~7분 동안 숙성 시키는 것이 바람직하다.If the demolding time is less than 5 minutes when demolding the integrally molded foam from the mold during the manufacturing process, the foam may expand and cause product defects. It is preferable to mature for 5-7 minutes.
상기 제조 과정에서 금형 온도가 30℃ 이하가 되면 표피일체 성형 폼 표면에 보이드(Void)가 생기고 금형에서 폼 탈형 시 폼의 파손의 우려가 생기며, 50℃ 이상이 되면 폼의 스킨(Skin)층이 얇아져 폼 표면이 벗겨지는 현상이 생기기 때문에 30~50℃의 온도가 바람직하다. In the manufacturing process, when the mold temperature is 30 ° C. or lower, voids are formed on the surface of the integrally molded foam, and foam breakage may occur when the mold is demolded. When the mold temperature is 50 ° C. or higher, the skin layer of the foam is formed. The temperature of 30-50 degreeC is preferable because the phenomenon which becomes thin and peeling of a foam surface arises.
다음은 본 발명에 따른 고탄성 고내구성을 지닌 바닥재를 시공하는 과정을 첨부된 도 3에 의해 상세히 설명하면 다음과 같다.Next, the process of constructing a flooring material having high elasticity and high durability according to the present invention will be described in detail with reference to FIG. 3.
도 3은 본 발명에 따른 고탄성 고내구성을 지닌 바닥재를 설치한 상태의 단 면도로서. 농구장, 사무실, 병원, 호텔, 학교, 골프장, 자전거 전용도로, 조깅코스 등에 시공할 경우 콘크리트 바닥면(1) 위에 에폭시, 우레탄, 핫멜트(Hot-Melt) 중에서 선택된 1종의 접착제(2)를 2~3mm 두께로 도포한 다음, 상기 접착제(2) 위에 표면에 유색 스프레이 또는 인쇄 처리된 코팅층(4)이 형성된 본 발명의 고탄성 고내구성을 지닌 바닥재(3)를 부착함으로써 시공을 완료하게 된다.Figure 3 as a stage shaving in the state installed the flooring with high elasticity high durability according to the present invention. When applying to basketball courts, offices, hospitals, hotels, schools, golf courses, bicycle paths, jogging courses, etc., apply one adhesive (2) selected from epoxy, urethane, and hot-melt on the concrete floor (1). After application to a thickness of ˜3mm, the construction is completed by attaching the high-elastic, high-durability flooring material 3 of the present invention on which the coating layer 4, which is colored sprayed or printed, is formed on the surface of the adhesive 2.
상기 시공 과정에서 도포되는 접착제의 두께가 2mm 이하가 되면 접착제와 표피일체 성형 폼의 접착력이 저하되고, 도포되는 접착제의 두께가 3mm 이상이 되면 시공가격이 높아져 경제성이 떨어지는 문제점이 있어 2~3mm 두께로 도포하는 것이 바람직하다.When the thickness of the adhesive applied in the construction process is less than 2mm, the adhesive strength of the adhesive and the skin integrally molded foam is lowered, and when the thickness of the applied adhesive is 3mm or more, the construction price is increased and the economical efficiency is inferior. It is preferable to apply by.
이하 본 발명에 따른 고탄성 고내구성을 지닌 바닥재의 실시예를 들어 설명하면 다음과 같다.Hereinafter, an embodiment of a flooring material having high elasticity and high durability according to the present invention will be described.
본 발명의 실시예 1 내지 실시예 3에 따른 조성물 함량비를 표 1에 나타내었다. Composition ratios according to Examples 1 to 3 of the present invention are shown in Table 1.
먼저, 아래의 표 1과 같이 실시예 1 내지 실시예 3에서는 프리폴리머용액을 20% NCO 변성 메틸렌 디이소시아네이트로 고정함과 동시에 상기 프리폴리머용액과 수지용액은 0.5:1의 비율로 혼합 고정한 상태에서 수지용액을 구성하는 성분의 함량 비율을 변화하였다.First, in Examples 1 to 3, as shown in Table 1 below, the prepolymer solution was fixed with 20% NCO-modified methylene diisocyanate and the prepolymer solution and the resin solution were mixed and fixed in a ratio of 0.5: 1. The content ratio of the components constituting the was changed.
즉, 수지용액의 구성 성분인 실리콘 정포제, 아민 촉매를 0.5wt%, 1.5wt%로 각각 고정한 상태에서, 분자량 3,000~5,000의 폴리에테르폴리올은 40wt%, 50wt%, 60wt%로 변화하고, 코폴리머 폴리올은 30wt%, 20wt%, 25wt%로 변화하고, 사슬 연장 제는 10wt%, 8wt%, 8wt%로 변화하고, 발포제는 18wt%, 20wt%, 5wt%로 각각 변화시켰다.That is, in a state where the silicon foam stabilizer and the amine catalyst, which are components of the resin solution, are fixed at 0.5 wt% and 1.5 wt%, respectively, the polyether polyol having a molecular weight of 3,000 to 5,000 is changed to 40 wt%, 50 wt%, and 60 wt%. The polymer polyol was changed to 30 wt%, 20 wt%, 25 wt%, the chain extenders were changed to 10 wt%, 8 wt%, 8 wt%, and the blowing agent was changed to 18 wt%, 20 wt%, 5 wt%, respectively.
(표 1) 실시예 1 내지 실시예 3에 따른 조성물 함량비Table 1 Composition content ratios according to Examples 1 to 3
상기와 같은 실시예 1 내지 3의 조성물을 40℃ 온도를 유지하는 금형내에 투입하여 6분경과 후에 금형으로부터 탈형 시킨 다음, 가로 및 세로 폭이 50×50㎝, 두께 1.5cm 패널로 재단하여 폼 밀도와, 폼 경도, 반발탄성, 압축영구변형율(Compression Set)을 측정하였으며, 그 결과를 표 2에 나타내었으며, 비교예는 국내 K사의 액상 타입의 우레탄을 주 재질로 하는 우레탄 탄성 바닥재 제품을 비교예로 들었다.The composition of Examples 1 to 3 as described above was introduced into a mold maintaining a temperature of 40 ° C., and after 6 minutes, demolded from the mold, and then cut into a panel having a width and length of 50 × 50 cm and a thickness of 1.5 cm to form a density. And foam hardness, resilience, compression set were measured, and the results are shown in Table 2, and the comparative example is a comparative example of a urethane elastic flooring product mainly composed of liquid urethane of K company in Korea. Heard by.
여기에서 폼 밀도는 〔표피일체 성형 폼의 무게(Kg)〕÷〔금형의 체적(m3:가로*세로*높이)〕로 측정하였으며, 폼 경도는 고무 및 플라스틱 경도 측정 장비인 고무 경도계(ASKER)를 사용하여 측정하고, 반발탄성은 영국의 월리스(Wallace)사에서 제작한 드롭 트립소메타(drop tripsometer)를 이용하여 BS 903 의 방법으로 타격 후 반발높이의 수치를 반발탄성 값으로 기록하였으며, 압축영구변형율은 에이에스티엠 디 395(ASTM D 395)에 따라 50% 압축비로 압축하여 50℃ 오븐에서 6시간 가 압한 후 압력을 제거하고, 상온에서 30분간 회복시켜 두께를 측정하여 결과를 산출하였다.Here, the foam density was measured by 『Weight (Kg) of skin-integral molded foam ÷ ÷ [Volume of mold (m 3 : horizontal * vertical * height)), and the foam hardness was measured by rubber hardness tester (ASKER, a rubber and plastic hardness measuring instrument). The resilience is measured using a drop tripsometer manufactured by Wallace, UK, and the rebound height is recorded as the resilience value after the blow using the BS 903 method. Compressive permanent strain was compressed to 50% compression ratio according to ATS D 395 (ASTM D 395) and pressurized for 6 hours at 50 ℃ oven, the pressure was removed, and recovered for 30 minutes at room temperature to measure the thickness was calculated.
(표 2) 실시예 1 내지 실시예 3에 따른 측정결과Table 2 Measurement Results According to Examples 1 to 3
상기 표 2에서 보는 바와 같이 비교예와 비교해 볼 때, 실시예 2가 고탄성 고내구성을 지닌 바닥재를 나타냄을 알 수 있었다.When compared with the comparative example as shown in Table 2, it can be seen that Example 2 represents a flooring material having a high elasticity and high durability.
다음은 본 발명의 실시예 4 내지 실시예 6에 따른 조성물 함량비를 표 3에 나타내었다. Next, the composition content ratios according to Examples 4 to 6 of the present invention are shown in Table 3.
실시예 4 내지 실시예 6은 상기 실시예 2에서 얻은 수지용액의 조성물의 성분 함량으로 고정한 상태에서 프리폴리머용액의 NCO 함량을 22%, 24%, 26%로 각각 변화시키고, 상기 프리폴리머용액과 수지용액의 혼합비율을 0.4:1, 0.5:1, 0.6:1 로 각각 변화하여 표 3에 나타내었다.In Examples 4 to 6, the NCO content of the prepolymer solution was changed to 22%, 24%, and 26%, respectively, in the state of being fixed to the component content of the composition of the resin solution obtained in Example 2, and the prepolymer solution and the resin solution The mixing ratios of 0.4: 1, 0.5: 1, and 0.6: 1 are shown in Table 3, respectively.
(표 3) 실시예 4 내지 실시예 6에 따른 조성물 함량비.TABLE 3 Composition content ratios according to Examples 4-6.
상기와 같은 실시예 4 내지 6의 조성물을 40℃ 온도를 유지하는 금형 내에 투입하여 6분경과 후에 금형으로부터 탈형시킨 다음, 가로 및 세로 폭이 50×50㎝, 두께 1.5cm 패널로 재단하여 폼 밀도와, 폼 경도, 반발탄성, 압축영구변형율을 측정하였으며, 그 결과를 표 4에 나타내었다.The composition of Examples 4 to 6 as described above was introduced into a mold maintaining a temperature of 40 ° C., after 6 minutes, demolded from the mold, and then cut into a panel having a width and length of 50 × 50 cm and a thickness of 1.5 cm to form a foam density. And, foam hardness, rebound elasticity, compression set was measured, the results are shown in Table 4.
(표 4) 실시예 4 내지 실시예 6에 따른 측정결과Table 4 Measurement results according to Examples 4 to 6
상기 표 4에서 보는 바와 같이 비교예에 비하여 본 발명의 실시예 4 내지 6이 반발탄성, 압축영구변형율이 월등히 높은 것을 확인할 수 있으며, 그 중에서도 실시예 5가 고탄성 고내구성을 지닌 바닥재를 나타냄을 알 수 있었다.As shown in Table 4, it can be seen that Examples 4 to 6 of the present invention are significantly higher in resilience and compression set than in Comparative Examples, and among them, Example 5 represents a flooring material having high elasticity and high durability. Could.
이와 같이 본 발명은 상기에 열거한 원료들을 사용하여 금형내에서 성형된 표피일체 성형 폼이 탄성 바닥재로 사용 가능하며, 콘크리트면 위에 접착제를 2~3mm 도포 후, 폼 상단 표면에 유색 스프레이 코팅 또는 표면 인쇄 공정 중 택일된 탄성 폼을 접착만 시키면 시공이 완료되므로 계절의 영향을 받지 않음에 따라 종래의 탄성 바닥재 제품과 비해 시공이 현저히 간편하게 되는 것이다.As described above, the present invention can be used as an elastic flooring material, which is an integral skin molded foam molded in a mold using the above-mentioned raw materials, and after applying an adhesive on the concrete surface for 2 to 3 mm, a colored spray coating or surface is applied to the top surface of the foam. Since the construction is completed by simply adhering the selected elastic foam during the printing process, the construction is remarkably simpler than the conventional elastic flooring products as it is not affected by the season.
이상에서 상술한 바와 같이 본 발명은 메틸렌 디이소시아네이트를 주성분으로 하는 프리폴리머용액과, 폴리에테르폴리올을 주성분으로 하는 수지용액을 일정 비율로 혼합한 고탄성 고내구성을 지닌 바닥재 조성물을 구성하고, 이 조성물을 표피 일체 성형 폼(integral skin foam)기법으로 제조함으로써 농구장, 사무실, 병원, 호텔, 학교, 골프장, 자전거 전용도로, 조깅코스 등의 바닥 면에 시공할 경우 고탄성 고내구성을 지니게 될 뿐만 아니라, 설치 시 주변 환경 및 계절의 영향을 받지 않게 되어 시공 상 편리함을 제공할 수 있는 효과가 있는 것이다.As described above, the present invention constitutes a flooring composition having a high elasticity and high durability in which a prepolymer solution containing methylene diisocyanate as a main component and a resin solution containing polyether polyol as a main component are mixed at a predetermined ratio, and the composition is coated on the skin. Manufactured by the integral skin foam technique, it has high elasticity and high durability when installed on the floor of basketball court, office, hospital, hotel, school, golf course, bicycle path, jogging course, etc. Will not be affected by the environment and seasons will have the effect of providing convenience in construction.
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KR100728388B1 (en) | 2007-02-14 | 2007-06-13 | 듀라케미 (주) | Polyurea coating material in aliphatic group for water-rust proof |
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Cited By (3)
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KR100988049B1 (en) | 2009-02-26 | 2010-10-18 | 듀라케미 (주) | Safety fence for a road |
KR101766087B1 (en) | 2015-12-11 | 2017-08-07 | 현대자동차주식회사 | Sound-insulation for automobile using spray polyurethane |
CN112500825A (en) * | 2020-12-14 | 2021-03-16 | 广东黑卫防火技术有限公司 | Foaming sealant, preparation method thereof and sealing system |
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