KR102277640B1 - Manufacturing method of loess tile surface treated with the glaze composition) - Google Patents

Manufacturing method of loess tile surface treated with the glaze composition) Download PDF

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KR102277640B1
KR102277640B1 KR1020190173611A KR20190173611A KR102277640B1 KR 102277640 B1 KR102277640 B1 KR 102277640B1 KR 1020190173611 A KR1020190173611 A KR 1020190173611A KR 20190173611 A KR20190173611 A KR 20190173611A KR 102277640 B1 KR102277640 B1 KR 102277640B1
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loess
expanded graphite
glaze
weight
parts
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KR20210081539A (en
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윤종희
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주식회사 케이이피
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/041Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers for moulded articles undergoing a thermal treatment at high temperatures, such as burning, after coating
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/14Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
    • C03C8/16Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions with vehicle or suspending agents, e.g. slip
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/14Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
    • C03C8/20Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing titanium compounds; containing zirconium 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
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81Coating or impregnation
    • C04B41/85Coating or impregnation with inorganic materials
    • C04B41/86Glazes; Cold glazes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Finishing Walls (AREA)

Abstract

본 발명은 황토타일의 제조방법에 관한 것으로서, 황토타일의 일면에 유약 조성물을 도포하는 단계, 상기 황토타일을 700 내지 900℃의 온도로 소성처리하는 단계를 포함하며, 상기 유약 조성물은 프릿 유약(fritted glaze), 이산화티탄 졸, 황토 및 팽창흑연으로 이루어지는 것을 특징으로 한다.The present invention relates to a method for manufacturing a loess tile, comprising the steps of applying a glaze composition to one surface of the loess tile, and calcining the ocher tile at a temperature of 700 to 900° C., wherein the glaze composition is a frit glaze ( fritted glaze), titanium dioxide sol, ocher, and expanded graphite.

Description

유약 조성물로 표면 처리된 황토타일의 제조방법.{MANUFACTURING METHOD OF LOESS TILE SURFACE TREATED WITH THE GLAZE COMPOSITION)}Manufacturing method of yellow clay tile surface-treated with glaze composition. {MANUFACTURING METHOD OF LOESS TILE SURFACE TREATED WITH THE GLAZE COMPOSITION}

본 발명은 유약 조성물로 표면 처리된 황토타일의 제조방법에 관한 것으로서, 더욱 상세하게는 황토타일의 표면에 유약 조성물로 표면 처리함으로써 다양한 디자인을 형성하면서도 황토타일의 탈취 및 습기 조절 기능을 저하시키지 않는 유약 조성물로 표면 처리된 황토타일의 제조방법에 관한 것이다.The present invention relates to a method of manufacturing a loess tile surface-treated with a glaze composition, and more particularly, by surface-treating the surface of the loess tile with a glaze composition to form various designs while not reducing the deodorization and moisture control functions of the ocher tile. The present invention relates to a method for manufacturing a loess tile surface-treated with a glaze composition.

황토타일은 다공질의 다중층 구조로 제조된 것으로서 그 자체로 탈취 및 습기 조절 기능을 가지고 있어 고급 건축 자재로서 사용되고 있다. 이러한 황토타일은 별도의 표면처리 없이 황토 본연의 색상과 질감을 나타내는 용도로도 사용되고 있다. Yellow clay tile is manufactured with a porous multi-layer structure and has deodorizing and moisture control functions by itself, so it is used as a high-quality building material. These loess tiles are also used to express the original color and texture of loess without a separate surface treatment.

이러한 황토타일의 표면에 유약 처리를 하면 전통적 디자인의 구현이 가능하므로 고급 건축 자재로서의 용도를 확장시킬 수 있다. 그러나 황토타일의 표면에 유약으로 코팅층을 형성하면 황토타일의 표면 다공성이 저하되어 탈취 및 습기 조절 기능이 저하되는 문제점이 발생한다.By glazing the surface of these loess tiles, traditional designs can be realized, so the use of high-quality building materials can be expanded. However, when a coating layer is formed on the surface of the loess tile with a glaze, the surface porosity of the loess tile is lowered, resulting in a problem in that the deodorization and moisture control functions are reduced.

이러한 이유로 대한민국 등록특허 10-1067144호에서는 유약 매트릭스 내에 존재하는 질석을 유약 소성시 팽창시켜, 팽창된 질석 내에 존재하는 기공과 질석의 팽창으로 형성된 질석 주변의 유약 크랙을 통해 우수한 통기성을 향상시키는 기술을 개발하고 있다. 즉, 유약으로 형성된 코팅층에도 다공성을 부여함으로써 황토타일의 표면 다공성을 저하시키지 않고도 유약으로 각종 문양을 디자인할 수 있게 된다.For this reason, Korean Patent Registration No. 10-1067144 discloses a technique for expanding the vermiculite present in the glaze matrix during glaze firing and improving the excellent breathability through the pores existing in the expanded vermiculite and the glaze cracks around the vermiculite formed by the expansion of the vermiculite. is developing That is, by imparting porosity to the coating layer formed of the glaze, various patterns can be designed with the glaze without reducing the surface porosity of the loess tile.

그러나 최근 다양한 세라믹 재료로부터 라돈 방출이 보고되고 있어 실제 안정성 여부와 상관없이 이러한 세라믹 재료를 사용하지 않는 추세로 시장 상황이 변하고 있어 이에 대응할 수 있으면서도 유약 도포 후 황토타일의 표면 다공성을 저하시키지 않을 수 있는 새로운 기술에 대한 개발이 필요한 실정이다.However, recently, radon emission from various ceramic materials has been reported, and the market situation is changing with the trend of not using such ceramic materials regardless of actual stability. There is a need to develop new technologies.

대한민국 등록특허 10-1067144호Republic of Korea Patent Registration No. 10-1067144

본 발명은 상기와 같은 종래기술의 문제점을 감안하여 안출된 것으로서, 유약 도포에 의해 황토타일의 표면 다공성을 저하시키지 않도록 최적화된 유약 조성물의 도포에 의해 황토타일을 제조하는 방법을 제공하는 것을 그 목적으로 한다.The present invention has been devised in view of the problems of the prior art as described above, and it is an object of the present invention to provide a method for manufacturing a loess tile by applying a glaze composition optimized so as not to decrease the surface porosity of the loess tile by applying the glaze. do it with

상기와 같은 목적을 달성하기 위한 본 발명의 황토타일의 제조방법은 황토타일의 일면에 유약 조성물을 도포하는 단계, 상기 황토타일을 700 내지 900℃의 온도로 소성처리하는 단계를 포함하며, 상기 유약 조성물은 프릿 유약(fritted glaze), 이산화티탄 졸, 황토 및 팽창흑연으로 이루어지는 것을 특징으로 한다.The manufacturing method of the ocher tile of the present invention for achieving the above object includes the steps of applying a glaze composition to one surface of the loess tile, and calcining the ocher tile at a temperature of 700 to 900°C, the glaze The composition is characterized in that it consists of fritted glaze, titanium dioxide sol, ocher and expanded graphite.

이때, 상기 유약 조성물은 프릿 유약 100 중량부에 대하여 이산화티탄 졸 2 내지 5 중량부, 황토 10 내지 15 중량부, 및 팽창흑연 10 내지 20 중량부로 이루어지는 것이 바람직하다.In this case, the glaze composition is preferably composed of 2 to 5 parts by weight of titanium dioxide sol, 10 to 15 parts by weight of loess, and 10 to 20 parts by weight of expanded graphite based on 100 parts by weight of the frit glaze.

또한, 상기 팽창흑연은 팽창흑연을 분쇄하여 팽창흑연 분말을 제조하는 단계, 상기 팽창흑연 분말 및 용매를 반응기에 투입하고 300 내지 320MPa의 압력 조건 및 80 내지 100℃의 온도 조건에서 10 내지 20 시간 동안 고압 처리하는 단계, 상기 고압 처리된 팽창흑연 분말을 여과하고 용매에 분산시킨 후 400 내지 500 Hz로 0.5 내지 1시간 동안 초음파 처리하는 단계를 통하여 제조되는 것을 사용하는 것이 바람직하다.In addition, the expanded graphite is pulverized to produce expanded graphite powder, the expanded graphite powder and solvent are added to the reactor, and the pressure condition of 300 to 320 MPa and the temperature condition of 80 to 100 ° C. for 10 to 20 hours It is preferable to use the one prepared through the step of high-pressure treatment, the step of sonicating the high-pressure-treated expanded graphite powder for 0.5 to 1 hour at 400 to 500 Hz after filtering and dispersing in a solvent.

본 발명에 따른 황토타일을 제조하는 방법을 적용하면 유약 도포에 의해 황토타일의 표면 다공성을 저하시키지 않기 때문에 유약 처리 후에도 황토타일의 탈취 및 습기 조절 기능을 저하시키지 않을 수 있어 다양한 디자인의 황토타일의 제조가 가능한 효과를 나타낸다.When the method for manufacturing loess tiles according to the present invention is applied, since the surface porosity of loess tiles is not reduced by glazing application, the deodorization and moisture control functions of loess tiles of various designs may not be reduced even after glazing treatment. It shows the effect that can be manufactured.

이하 본 발명을 보다 상세히 설명한다. 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, the present invention will be described in more detail. The terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

본 발명에 따른 황토타일의 제조방법은 황토타일의 일면에 유약 조성물을 도포하는 단계, 상기 황토타일을 700 내지 900℃의 온도로 소성처리하는 단계를 포함하며, 상기 유약 조성물은 프릿 유약(fritted glaze), 이산화티탄 졸, 황토 및 팽창흑연로 이루어지는 것을 특징으로 한다.The method for manufacturing a loess tile according to the present invention includes applying a glaze composition to one surface of the loess tile, and firing the ocher tile at a temperature of 700 to 900° C., wherein the glaze composition is fritted glaze. ), titanium dioxide sol, loess, and expanded graphite.

상기와 같은 유약 조성물을 사용하여 유약처리하는 경우 통상의 유약처리와는 달리 다공성을 유지하면서도 유약처리에 따른 표면 가공 효과를 얻을 수 있기 때문에 황토타일의 탈취 및 습기 조절 기능을 저하시키지 않고도 유약처리가 가능하게 된다.In the case of glazing using the glaze composition as described above, unlike conventional glazing, it is possible to obtain a surface processing effect by glazing while maintaining porosity. Therefore, glazing can be performed without reducing the deodorization and moisture control functions of the loess tiles. it becomes possible

이를 위하여 상기 유약 조성물을 최적화할 필요가 있는데, 본 발명에서는 상기 유약 조성물의 성분으로서 프릿 유약(fritted glaze), 이산화티탄 졸, 황토 및 팽창흑연으로 이루어진 조성물을 사용한다.For this, it is necessary to optimize the glaze composition. In the present invention, a composition comprising fritted glaze, titanium dioxide sol, ocher and expanded graphite is used as a component of the glaze composition.

상기 유약 조성물에 함유되는 팽창흑연은 층상구조로 이루어진 탄소재료로서 열에 의해 팽창하면서 유약처리된 코팅층의 다공성을 확보할 수 있게 해 주는 것으로 나타났다. 이는 공지기술인 대한민국 등록특허 10-1067144호에서 질석이 팽창하면서 형성된 질석 주변의 유약 크랙을 통해 우수한 통기성을 발현하는 것과 유사한 과정이 발생하기 때문으로 추측된다.The expanded graphite contained in the glaze composition is a carbon material having a layered structure and has been shown to ensure porosity of the glazed coating layer while expanding by heat. This is presumed to be because a process similar to that of expressing excellent air permeability through glaze cracks around vermiculite formed as vermiculite expands in Korea Patent Registration No. 10-1067144, which is a known art, occurs.

이러한 팽창흑연의 열팽창 효과는 일반적인 팽창흑연에서도 나타나는데 열공급이 중단되면 원래 상태로 돌아오는 경향이 있어 유약처리된 코팅층의 다공성 확보라는 측면에서는 특별한 효과를 얻을 수 없다. 또한, 팽창흑연 주변의 크랙이 발생하면 유약처리에 의한 표면 질감이 저하되는 문제점이 발생하여 다양한 디자인의 황토타일을 제조할 수 없는 문제점이 있다. 그러나 본 발명에서는 상기 팽창흑연을 고압처리함으로써 열팽창에 따른 유약처리된 코팅층의 다공성 확보와 함께 유약처리에 따른 표면 질감의 저하 없이 황토타일의 탈취 및 습기 조절 기능을 구현할 수 있는 것으로 나타났다.The thermal expansion effect of the expanded graphite is also shown in general expanded graphite, but when the heat supply is stopped, it tends to return to its original state, so that a special effect cannot be obtained in terms of securing the porosity of the glazed coating layer. In addition, when cracks occur around the expanded graphite, there is a problem in that the surface texture is deteriorated due to the glaze treatment, and thus there is a problem in that it is not possible to manufacture yellow clay tiles of various designs. However, in the present invention, by high-pressure treatment of the expanded graphite, it was shown that the deodorization and moisture control functions of the loess tile can be implemented without deterioration of the surface texture due to the glazing while ensuring the porosity of the glazed coating layer due to thermal expansion.

이러한 팽창흑연의 고압처리를 구체적으로 설명하면, 팽창흑연을 분쇄하여 팽창흑연 분말을 제조하는 단계, 상기 팽창흑연 분말 및 용매를 반응기에 투입하고 300 내지 320MPa의 압력 조건 및 80 내지 100℃의 온도 조건에서 10 내지 20 시간 동안 고압 처리하는 단계, 상기 고압 처리된 팽창흑연 분말을 여과하고 용매에 분산시킨 후 400 내지 500 Hz로 0.5 내지 1시간 동안 초음파 처리하는 단계를 통하여 팽창흑연을 제조할 수 있다.Specifically describing the high-pressure treatment of the expanded graphite, the step of preparing the expanded graphite powder by pulverizing the expanded graphite, the expanded graphite powder and a solvent are added to the reactor, and the pressure condition of 300 to 320 MPa and the temperature condition of 80 to 100 ℃ Expanded graphite can be prepared through the step of high-pressure treatment in a high-pressure treatment for 10 to 20 hours, the high-pressure-treated expanded graphite powder is filtered and dispersed in a solvent, and then sonicated at 400 to 500 Hz for 0.5 to 1 hour.

상기 고압 처리시 사용할 수 있는 용매로는 물과 에탄올, 프로판올, 이소프로판올 중에서 선택된 알코올의 혼합용매를 사용하는 것이 바람직한데, 물과 알코올의 혼합비율을 9:1 내지 5:1의 중량비로 혼합할 때 고압 처리의 효과를 증대시킬 수 있는 것으로 나타났다.It is preferable to use a mixed solvent of water and an alcohol selected from among ethanol, propanol, and isopropanol as the solvent that can be used during the high pressure treatment. When mixing water and alcohol in a weight ratio of 9:1 to 5:1 It was shown that the effect of high pressure treatment can be increased.

또한, 고압 처리 후의 팽창흑연 분말을 분산시키기 위하여 상기 분말을 여과하고 상기 물과 알코올의 혼합용매를 가하여 분산시킨 후 400 내지 500 Hz로 0.5 내지 1시간 동안 초음파 처리함으로써 분말의 분산도를 향상시킬 수 있다.In addition, in order to disperse the expanded graphite powder after high pressure treatment, the powder is filtered, dispersed by adding a mixed solvent of water and alcohol, and then sonicated at 400 to 500 Hz for 0.5 to 1 hour to improve the dispersion degree of the powder. have.

상기 유약 조성물을 제조함에 있어서, 프릿 유약 100 중량부에 대하여 이산화티탄 졸 2 내지 5 중량부, 황토 10 내지 15 중량부, 및 팽창흑연 10 내지 20 중량부로 이루어지도록 조성물을 제조하는 것이 바람직하다.In preparing the glaze composition, it is preferable to prepare the composition to consist of 2 to 5 parts by weight of titanium dioxide sol, 10 to 15 parts by weight of loess, and 10 to 20 parts by weight of expanded graphite based on 100 parts by weight of the frit glaze.

상기 이산화티탄 졸은 가수분해 및 열처리공정에 의해 산화티탄 입자를 형성하며 이를 통하여 표면 방오성을 향상시키는 효과를 얻을 수 있게 된다. 상기 이산화티탄 졸은 고분산된 상태로 있으므로 2 내지 5 중량부의 비교적 적은 양을 혼합하여도 되며, 너무 많은 양을 혼합하여도 유약처리 후의 표면 질감이 저하될 수 있으므로 상기 범위 내에서 사용하는 것이 바람직하다.The titanium dioxide sol forms titanium oxide particles by a hydrolysis and heat treatment process, thereby obtaining an effect of improving surface antifouling properties. Since the titanium dioxide sol is in a highly dispersed state, a relatively small amount of 2 to 5 parts by weight may be mixed, and even if an excessive amount is mixed, the surface texture after glazing may deteriorate, so it is preferable to use it within the above range. Do.

또한, 상기 황토는 20 내지 30 메쉬로 분쇄된 입자를 사용하는 것이 바람직하며, 상기 황토를 혼합함으로써 기재인 황토타일과의 상용성이 증대되며, 따라서 탈취 및 습기 조절 기능을 향상시킬 수 있다. 상기 황토를 지나치게 많이 사용하여도 유약처리 효율이 저하되어 도막의 내구성이 저하되는 문제점이 있으며, 너무 적게 사용하면 탈취 및 습기 조절 기능이 일부 저하되는 문제점이 발생하므로 상기 범위 내에서 사용하는 것이 바람직하다.In addition, it is preferable to use particles pulverized to 20 to 30 mesh for the loess, and by mixing the loess, compatibility with loess tiles as a base material is increased, and thus deodorization and moisture control functions can be improved. Even if the loess is used too much, there is a problem that the glaze treatment efficiency is lowered and the durability of the coating film is lowered, and if it is used too little, the deodorization and moisture control function is partially reduced, so it is preferable to use it within the above range. .

또한, 팽창흑연은 전술한 바와 같이 고압 처리한 팽창흑연을 사용하는 것이 바람직한데, 팽창흑연은 10 내지 20 중량부의 범위에서 함유되는 것이 바람직하다. 상기 팽창흑연의 함량이 지나치게 적으면 유약처리된 코팅층의 통기성이 저하되어 황토타일의 탈취 및 습기 조절 기능이 저하되는 문제점이 있으며, 너무 많은 양을 사용하면 유약 조성물의 기재에 대한 상용성이 저하되어 도막의 내구성이 저하되는 문제점을 나타낸다.In addition, it is preferable to use the expanded graphite treated with high pressure as described above, and the expanded graphite is preferably contained in the range of 10 to 20 parts by weight. If the content of the expanded graphite is too small, the breathability of the glazed coating layer is lowered, and there is a problem in that the deodorization and moisture control function of the loess tile is lowered. If the content is too large, the compatibility of the glaze composition with the substrate is reduced. It shows a problem that the durability of the coating film is reduced.

본 발명에 따른 황토타일 제조방법을 적용하여 황토타일을 제조하고 상기 황토타일에 대한 물성을 시험평가하였다.The loess tile manufacturing method according to the present invention was applied to manufacture loess tiles, and the physical properties of the loess tiles were tested and evaluated.

점토, 고령토, 및 황토 포함하는 황토 조성물을 가압성형 및 소성하여 제조된 황토타일(300×300×10㎜)을 기재로 하여 유약처리를 하였다.A glaze treatment was performed using loess tiles (300×300×10 mm) prepared by press-molding and firing a loess composition containing clay, kaolin, and loess.

유약 조성물로는 프릿 유약 100 중량부에 대하여 이산화티탄 졸 3 중량부, 황토(25 메쉬) 12 중량부, 및 팽창흑연 15 중량부를 배합하여 유약 조성물을 제조하였다. 상기 팽창흑연은 물과 에탄올을 8:1의 중량비로 혼합한 혼합용매 100 중량부에 대하여 20 메쉬로 분쇄된 팽창흑연 분말 50 중량부를 혼합하여 고압 반응기에 투입하고 300 내지 310MPa의 압력 및 90 내지 95℃의 온도 조건에서 16시간 동안 고압 처리를 수행하였다. 얻어진 팽창흑연 분말을 여과한 후 다시 100 중량부의 혼합용매(물과 에탄올을 8:1 중량비로 혼합)를 가하고 여기에 500 Hz로 30분 간 초음파를 인가하여 분산시킨 후 이를 다시 여과 및 건조하여 팽창흑연을 수득하였다.The glaze composition was prepared by mixing 3 parts by weight of titanium dioxide sol, 12 parts by weight of loess (25 mesh), and 15 parts by weight of expanded graphite based on 100 parts by weight of the frit glaze. The expanded graphite is mixed with 50 parts by weight of expanded graphite powder pulverized to 20 mesh with respect to 100 parts by weight of a mixed solvent in which water and ethanol are mixed in a weight ratio of 8:1, put into a high-pressure reactor, and pressure of 300 to 310 MPa and 90 to 95 High pressure treatment was performed at a temperature condition of ℃ for 16 hours. After filtering the obtained expanded graphite powder, 100 parts by weight of a mixed solvent (water and ethanol mixed in a weight ratio of 8:1) is added thereto, and ultrasonic waves are applied thereto for 30 minutes at 500 Hz for dispersion, followed by filtration and drying again to expand Graphite was obtained.

상기 유약 조성물을 이용하여 표면 유약처리를 한 황토타일은 800℃에서 2시간 동안 소성처리하여 황토타일을 제조하였다(실시예).The loess tiles that were surface glazed using the glaze composition were calcined at 800° C. for 2 hours to prepare loess tiles (Example).

또한, 비교를 위하여 실시예와 동일한 방법으로 황토타일을 제조하되 고압처리하지 않은 시판되는 팽창흑연을 사용하여 황토타일을 제조하였다(비교예).In addition, for comparison, loess tiles were prepared in the same manner as in Examples, but commercially available expanded graphite that was not subjected to high pressure treatment was used to prepare loess tiles (Comparative Example).

또한, 비교를 위하여 유약처리하지 않은 일반 황토타일에 대하여 평가하였다(대조예).In addition, for comparison, it was evaluated for ordinary loess tiles without glazing (control example).

황토타일에 대한 평가는 KS L 1001(2003)에 따라 실시하였으며, 대조예에 따른 황토타일은 표 1에서 요구되는 성능을 모두 충족하는 것으로 나타났다.The evaluation of the loess tiles was conducted according to KS L 1001 (2003), and the loess tiles according to the control example were found to satisfy all the performance requirements in Table 1.

항목Item 요구성능required performance 꺽임강도(너비 1㎝당 꺽임파괴하중)Bending strength (Bending breaking load per 1cm of width) 100N/㎝ 이상100N/cm or more 흡수율absorption rate 18% 이하18% or less 내약품성, 내마모성, 내균열성, 내동해성Chemical resistance, abrasion resistance, crack resistance, frost resistance 이상없음clear 중금속(Cd, Pb, Cu, Hg, Cr, As)Heavy metals (Cd, Pb, Cu, Hg, Cr, As) 불검출non-detection 유해가스(포름알데하이드)Noxious gas (formaldehyde) 불검출non-detection

또한, 대조군의 황토타일의 암모니아 탈취 효율을 측정한 결과 60분에서 88.5%의 탈취율을 나타내었고, 습도 60%에 3일 간 방치한 후 무게 변화로부터 계산된 흡습율이 105%인 것으로 나타났다.In addition, as a result of measuring the ammonia deodorization efficiency of the loess tiles of the control group, it showed a deodorization rate of 88.5% in 60 minutes, and the moisture absorption rate calculated from the weight change after leaving it at 60% humidity for 3 days was 105%.

또한, 실시예 및 비교예의 황토타일은 모두 황토타일에서 요구되는 성능을 모두 충족하는 것으로 나타났다. 다만, 실시예의 황토타일은 암모니아 탈취 효율이 88.3%, 흡습율이 104%로 대조군의 황토타일과 성능에 차이가 없었지만, 비교예의 황토타일은 탈취율이 86.8%, 흡습율이 101%로 탈취 및 흡습 성능이 저하되는 경향을 나타내었다.In addition, it was found that all of the loess tiles of Examples and Comparative Examples satisfies the performance required for all of the loess tiles. However, the yellow clay tile of Example had ammonia deodorization efficiency of 88.3% and moisture absorption rate of 104%, so there was no difference in performance from that of the control group. The performance showed a tendency to deteriorate.

이러한 실시예와 비교예에 따른 황토타일의 성능 차이는 유약처리에 의해 발생하는 것으로서, 본 발명에 따른 유약 조성물을 적용할 때에만 황토타일의 성능을 유지하면서도 유약처리가 가능한 것을 시사하는 결과이다.The difference in performance of the loess tiles according to these Examples and Comparative Examples is caused by the glaze treatment, and only when the glaze composition according to the present invention is applied, while maintaining the performance of the loess tiles, is a result suggesting that the glaze treatment is possible.

본 발명은 상술한 바와 같이 바람직한 실시예를 들어 설명하였으나, 상기 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형과 변경이 가능하다. 그러한 변형예 및 변경예는 본 발명과 첨부된 특허청구범위의 범위 내에 속하는 것으로 보아야 한다.Although the present invention has been described with reference to the preferred embodiment as described above, it is not limited to the above embodiment, and various modifications and changes made by those skilled in the art to which the present invention pertains within the scope of the present invention are not departed from. change is possible Such modifications and variations are intended to fall within the scope of the present invention and the appended claims.

Claims (3)

황토타일의 일면에 유약 조성물을 도포하는 단계;
상기 황토타일을 700 내지 900℃의 온도로 소성처리하는 단계;
를 포함하며, 상기 유약 조성물은 프릿 유약(fritted glaze), 이산화티탄 졸, 황토 및 팽창흑연으로 이루어지며,
상기 팽창흑연은
팽창흑연을 분쇄하여 팽창흑연 분말을 제조하는 단계;
상기 팽창흑연 분말 및 용매를 반응기에 투입하고 300 내지 320MPa의 압력 조건 및 80 내지 100℃의 온도 조건에서 10 내지 20 시간 동안 고압 처리하는 단계;
상기 고압 처리된 팽창흑연 분말을 여과하고 용매에 분산시킨 후 400 내지 500 Hz로 0.5 내지 1시간 동안 초음파 처리하는 단계;
를 통하여 제조되는 것을 특징으로 하는 황토타일의 제조방법.
applying a glaze composition to one surface of the loess tiles;
calcining the loess tiles at a temperature of 700 to 900°C;
comprising, wherein the glaze composition consists of fritted glaze, titanium dioxide sol, ocher and expanded graphite,
The expanded graphite is
pulverizing expanded graphite to prepare expanded graphite powder;
adding the expanded graphite powder and a solvent to a reactor and high-pressure treatment for 10 to 20 hours at a pressure of 300 to 320 MPa and a temperature of 80 to 100°C;
Filtering the high-pressure-treated expanded graphite powder and dispersing it in a solvent, followed by sonication at 400 to 500 Hz for 0.5 to 1 hour;
A method of manufacturing loess tiles, characterized in that it is manufactured through.
청구항 1에 있어서,
상기 유약 조성물은 프릿 유약 100 중량부에 대하여 이산화티탄 졸 2 내지 5 중량부, 황토 10 내지 15 중량부, 및 팽창흑연 10 내지 20 중량부로 이루어지는 것을 특징으로 하는 황토타일의 제조방법.
The method according to claim 1,
The glaze composition comprises 2 to 5 parts by weight of titanium dioxide sol, 10 to 15 parts by weight of loess, and 10 to 20 parts by weight of expanded graphite based on 100 parts by weight of the frit glaze.
삭제delete
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JP3109988B2 (en) * 1995-05-02 2000-11-20 道夫 加島 Heat-resistant foamable composition and heat-resistant foamable sheet
KR101067144B1 (en) * 2007-12-27 2011-09-22 (주)엘지하우시스 Glaze composition containing vermiculite and a functional tile on which the surface is treated with the glaze composition

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