KR102575706B1 - Inorganic ceramic coating agent composition for excellent heating function - Google Patents
Inorganic ceramic coating agent composition for excellent heating function Download PDFInfo
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Abstract
본 발명은 발열기능이 향상된 무기질 세라믹 코팅제 조성물에 관한 것으로 보다 구체적으로는 가열이 수반되는 조리용품이나 생활용품에 코팅되는 세라믹 코팅제에 발열촉진제를 첨가하여 발열기능을 향상시킴으로써 가열 효율 등을 향상시킬 수 있도록 하며, 또한 입자크기가 각기 다른 다양한 졸을 포함하는 무기질 결합제, 기능성 충진제, 물유리, 융점조절제 및 안료를 포함하여 이루어짐으로써, 입자크기가 각기 다른 다양한 졸을 사용하여 혼합 조밀도를 증대시키고, 여기에 물유리를 혼합하여 금속의 내구성 및 졸 간의 결합력을 증대시키며, 이로 인해 코팅제의 내구성을 더욱 향상시킬 수 있도록 하는, 발열기능이 향상된 무기질 세라믹 코팅제 조성물에 관한 것이다.The present invention relates to an inorganic ceramic coating composition with improved heating function, and more specifically, heating efficiency and the like can be improved by improving the heating function by adding a heating accelerator to a ceramic coating agent coated on cooking utensils or household items that require heating. In addition, by including inorganic binders, functional fillers, water glass, melting point regulators, and pigments including various sols having different particle sizes, the mixing density is increased by using various sols having different particle sizes, here The present invention relates to an inorganic ceramic coating composition with improved exothermic function, which increases durability of metal and bonding strength between sol by mixing water glass, thereby further improving durability of coating agent.
Description
본 발명은 가열이 수반되는 조리용품이나 생활용품에 코팅되는 세라믹 코팅제에 발열촉진제를 첨가하여 발열기능을 향상시킴으로써 가열 효율 등을 향상시킬 수 있도록 하는, 발열기능이 향상된 무기질 세라믹 코팅제 조성물에 관한 것이다.The present invention relates to an inorganic ceramic coating composition with improved heating function, which is capable of improving heating efficiency and the like by adding a heating accelerator to a ceramic coating agent coated on cooking utensils or household items that require heating to improve heating function.
일반적으로, 가열이 수반되는 전자렌지(electronic range)), 고기구이판, 냄비, 프라이팬(frying pan) 등과 같은 각종 조리용품이나, 히터(Heater), 다리미 등과 같은 생활용품 등은 그 기능성을 향상시키기 위한 방안으로 다양한 코팅제(coating agent)를 개발하여 사용되고 있다.In general, various cooking utensils such as microwave ovens (electronic range), meat roasting boards, pots, frying pans, etc., household goods such as heaters, irons, etc. are used to improve their functionality. As a solution, various coating agents have been developed and used.
특히, 조리용품이나 생활용품의 경우에는 내산성, 내마모성, 내구성, 내열성, 내식성 등이 주로 요구되고 있으며, 이를 위해 무기질 세라믹(Ceramic) 코팅제가 널리 사용되고 있다.In particular, acid resistance, abrasion resistance, durability, heat resistance, corrosion resistance, etc. are mainly required in the case of cooking utensils or household goods, and for this purpose, inorganic ceramic coating agents are widely used.
관련 선행기술로써 특허문헌 1에서는 바인더(binder)로서 사용되는 실란(silane), 산화규소 및 물이 혼합된 규소혼합물에 기능성 충진제, 세라믹 파우더(powder), 안료를 첨가하여 제조된 무기질 세라믹 코팅제 조성물이 제안되어 있으나, 이와 같은 무기질 세라믹 코팅제 조성물을 이용하여 가열조리기구 등에 코팅층을 형성시킬 경우 코팅층의 결합력 향상을 위해서는 소성온도가 높아야 하고, 그리고 바인더로서 사용되는 규소혼합물이 산화규소와 물로 이루어지는 친수성의 특성으로 인해 내구성이 저하되는 문제점이 있다.In Patent Document 1 as a related prior art, an inorganic ceramic coating composition prepared by adding a functional filler, ceramic powder, and pigment to a silicon mixture containing silane, silicon oxide, and water used as a binder is However, when a coating layer is formed on a heated cookware using such an inorganic ceramic coating composition, the firing temperature must be high to improve the bonding strength of the coating layer, and the silicon mixture used as a binder has hydrophilic properties consisting of silicon oxide and water. As a result, there is a problem in that durability is lowered.
그리고 특허문헌 2에서는 무기질 용매, 기능성 첨가제, 실리콘계 오일(silicon oil) 중합제, 안료 등으로 이루어진 비점착성 및 청소 용이성 기능이 강화된 무기질 세라믹 코팅제 조성물을 이용하여 주방용품, 가전제품 등에 코팅층을 형성시키는 기술을 제안하고 있으나, 이와 같은 무기질 세라믹 코팅제 조성물을 이용하여 주방용품, 가전제품 등에 코팅층을 형성할 경우 코팅층의 결합력이 떨어져 소결 밀도가 저하되므로 장기간 사용시 코팅층이 균열 등으로 인해 박리되는 문제점이 있다.In addition, in Patent Document 2, a coating layer is formed on kitchen utensils, home appliances, etc. using an inorganic ceramic coating composition having enhanced non-adhesive and easy-to-clean functions composed of inorganic solvents, functional additives, silicone oil polymerizers, pigments, etc. Although the technology is proposed, when a coating layer is formed using such an inorganic ceramic coating composition for kitchen utensils, home appliances, etc., the bonding strength of the coating layer decreases and the sintering density decreases.
한편, 상기와 같은 문제점을 해결하기 위하여, 본 발명의 출원인은 특허문헌 3을 선출원하여 등록받은 바 있으며, 또한 특허문헌 3을 개량하여 그 내구성을 더욱 향상시킨 특허문헌 4를 등록받은 바 있다.On the other hand, in order to solve the above problems, the applicant of the present invention has previously filed and registered Patent Document 3, and has also received Patent Document 4, which further improves durability by improving Patent Document 3.
구체적으로 상기 특허문헌 3은 실란 화합물과 실리카 졸(silica sol), 알루미나 졸(alumina sol) 및 지르코니아 졸(zirconia sol)의 혼합물로 이루어지는 무기질 결합제에 기능성 충진제, 세라믹 파우더와 같은 첨가제를 혼합하여 기재의 표면에 코팅막을 형성시킴으로써, 코팅막의 표면을 고밀도로 소결시켜 표면경도를 상승시키므로 인해 내구성, 내열성과 같은 기계적 물성과 내식성과 같은 화학적 물성을 향상시킬 수 있도록 하며, 더욱이 실란 화합물과 실리카 졸, 알루미나 졸, 지르코니아 졸로 이루어진 무기질 결합제와 세라믹 파우더 등을 소결시 융점조절제를 첨가함으로써, 소결시 온도를 낮출 수 있어 에너지 소비량을 절감하면서 우수한 소결 밀도로 코팅막을 형성하여 세라믹 코팅막으로부터 원적외선 및 음이온이 방출될 뿐만 아니라, 가열시 열전도율을 증가시킬 수 있도록 한 것이다.Specifically, Patent Document 3 is a mixture of additives such as functional fillers and ceramic powders to an inorganic binder composed of a mixture of a silane compound and silica sol, alumina sol, and zirconia sol to obtain a base material. By forming a coating film on the surface, the surface of the coating film is sintered at high density to increase surface hardness, thereby improving mechanical properties such as durability and heat resistance and chemical properties such as corrosion resistance, and furthermore, silane compounds, silica sol, and alumina sol By adding a melting point regulator when sintering an inorganic binder and ceramic powder made of zirconia sol, the temperature during sintering can be lowered to reduce energy consumption while forming a coating film with excellent sintering density, which not only emits far-infrared rays and anions from the ceramic coating film , so that the thermal conductivity can be increased during heating.
또한, 상기 특허문헌 4는 입자크기가 각기 다른 다양한 졸(sol)을 사용하여 혼합 조밀도를 증대시키고, 여기에 물유리를 혼합하여 금속의 내구성 및 졸 간의 결합력을 증대시킴으로써, 코팅제의 내구성을 더욱 향상시킬 수 있도록 하면서도, 상기 물유리의 적용 시 물유리를 혼합졸과 혼합 후 메탄올과 서서히 혼합하여 격한 반응에 의한 겔화를 방지하는 등 그 제조효율을 향상시킬 수 있도록 한 것이다.In addition, Patent Document 4 increases the mixing density by using various sols having different particle sizes, and by mixing water glass therein to increase the durability of metal and the bonding strength between the sols, thereby further improving the durability of the coating agent. In addition, when the water glass is applied, it is possible to improve the manufacturing efficiency by mixing the water glass with the mixing sol and then slowly mixing it with methanol to prevent gelation due to a violent reaction.
이에 대하여 본 발명의 출원인은 상기 특허문헌 4를 개량하여 그 발열 기능을 향상시킴으로써, 본 발명을 완성하였다.In contrast, the applicant of the present invention completed the present invention by improving the patent document 4 and improving its exothermic function.
본 발명은 상술한 문제점을 해결하기 위한 것으로, 가열이 수반되는 조리용품이나 생활용품에 코팅되는 세라믹 코팅제에 발열촉진제를 첨가하여 발열기능을 향상시킴으로써 가열 효율 등을 향상시킬 수 있도록 함을 과제로 한다.The present invention is to solve the above-mentioned problems, and an object of the present invention is to improve the heating efficiency by adding a heating accelerator to a ceramic coating agent coated on cooking utensils or daily necessities accompanied by heating to improve the heating function. .
또한, 입자크기가 각기 다른 다양한 졸을 포함하는 무기질 결합제, 기능성 충진제, 물유리, 융점조절제 및 안료를 포함하여 이루어짐으로써, 입자크기가 각기 다른 다양한 졸을 사용하여 혼합 조밀도를 증대시키고, 여기에 물유리를 혼합하여 금속의 내구성 및 졸 간의 결합력을 증대시키며, 이로 인해 코팅제의 내구성을 더욱 향상시킬 수 있도록 함을 다른 과제로 한다.In addition, by including inorganic binders, functional fillers, water glass, melting point regulators, and pigments including various sols having different particle sizes, the mixing density is increased by using various sols having different particle sizes, and the water glass Another task is to increase the durability of the metal and the bonding force between the sol by mixing, thereby further improving the durability of the coating agent.
본 발명은 무기질 세라믹 코팅제 조성물에 있어서, 무기질 결합제 100 중량부에 대하여, 발열촉진제 5 ~ 10 중량부, 기능성 충진제 7 ~ 12 중량부, 물유리 3 ~ 10 중량부, 융점조절제 5 ~ 10 중량부 및 안료 1 ~ 3 중량부로 이루어지는 것을 특징으로 하는, 발열기능이 향상된 무기질 세라믹 코팅제 조성물을 과제의 해결 수단으로 한다.In the inorganic ceramic coating composition of the present invention, based on 100 parts by weight of the inorganic binder, 5 to 10 parts by weight of a heat accelerator, 7 to 12 parts by weight of a functional filler, 3 to 10 parts by weight of water glass, 5 to 10 parts by weight of a melting point regulator, and a pigment An inorganic ceramic coating composition with improved heating function, characterized in that it consists of 1 to 3 parts by weight, as a means of solving the problem.
여기서, 상기 발열촉진제는 산화알루미늄(Al2O3), 수산화알루미늄(Al(OH)3), 산화마그네슘(MgO), BN(Boron Nitride), 질화규소(Si3N4), AlN(Aluminium Nitride) 또는 산화아연(ZnO) 중에서 단독 또는 2종 이상 병용하여 사용하되, 입자크기는 0.1 ~ 20㎛인 것이 바람직하다.Here, the heat accelerator is aluminum oxide (Al 2 O 3 ), aluminum hydroxide (Al(OH) 3 ), magnesium oxide (MgO), BN (Boron Nitride), silicon nitride (Si 3 N 4 ), AlN (Aluminium Nitride) Alternatively, zinc oxide (ZnO) is used alone or in combination of two or more, but the particle size is preferably 0.1 to 20 μm.
또한, 상기 무기질 결합제는 입자크기가 각기 다른 다양한 졸을 포함하는 것이 바람직하며, 보다 구체적으로는 화학식이 RnSiX4-n인 실란 화합물 40 ~ 50 중량부와, 0.2 ~ 1.0㎛ 입자크기의 분말 산화규소(SiO2) 20 ~ 40 중량%에 물 60 ~ 80중량%를 혼합한 실리카 졸 20 ~ 25 중량부와, 0.2 ~ 1.0㎛ 입자크기의 분말 산화알루미늄 10 ~ 20 중량%에 물 80 ~ 90 중량%를 혼합한 알루미나 졸 15 ~ 20 중량부 및, 0.2 ~ 1.0㎛ 입자크기의 분말 지르코니아 10 ~ 20중량%에 물 80 ~ 90 중량%를 혼합한 지르코니아 졸 15~20 중량부로 이루어지며, 상기 실란의 화학식 RnSiX4-n에서 X는 서로 같거나 다르고, 가수분해 가능한 기 또는 히드록시기(hydroxy group)이고, 라디칼(radical) R은 서로 같거나 다르고, 수소, 탄소수 10 미만의 알킬기(alkyl group)를 나타내고, n은 0, 1 또는 2인 실란이 하나 이상 사용되는 것이 바람직하다.In addition, the inorganic binder preferably includes various sols having different particle sizes, and more specifically, 40 to 50 parts by weight of a silane compound having a chemical formula of R n SiX 4-n and powder having a particle size of 0.2 to 1.0 μm. 20 to 25 parts by weight of a silica sol obtained by mixing 20 to 40% by weight of silicon oxide (SiO 2 ) with 60 to 80% by weight of water, and 80 to 90 parts by weight of powdered aluminum oxide having a particle size of 0.2 to 1.0㎛ and 80 to 90% by weight of water. It consists of 15 to 20 parts by weight of alumina sol mixed with weight % and 15 to 20 parts by weight of zirconia sol mixed with 80 to 90 weight % of water in 10 to 20 weight % of powdered zirconia having a particle size of 0.2 to 1.0 μm. In the formula R n SiX 4-n, X is the same as or different from each other, a hydrolyzable group or a hydroxy group, and the radicals R are the same or different from each other, hydrogen, an alkyl group having less than 10 carbon atoms , wherein n is 0, 1 or 2, preferably at least one silane is used.
아울러, 상기 물유리는, 리튬실리케이트(lithium silicate), 칼륨실리케이트(kalium silicate), 소듐실리케이트(sodium silicate), 포타슘실리케이트(potassium silicate), 지르코늄실리케이트(zirconium silicate), 마그네슘실리케이트(magnesium silicate) 또는 티타늄 실리케이트(titanium silicate) 중에서 단독 또는 2종 이상 병용하여 사용하는 것이 바람직하지만, 여기에 한정되는 것은 아니며, 특정 제조방법이나 종류에 한정하지 않고 이미 공지된 다양한 방법으로 제조된 다양한 종류의 물유리를 사용할 수 있다.In addition, the water glass may include lithium silicate, potassium silicate, sodium silicate, potassium silicate, zirconium silicate, magnesium silicate or titanium silicate. (titanium silicate) is preferably used alone or in combination of two or more, but is not limited thereto, and various types of water glass manufactured by various known methods can be used without being limited to a specific manufacturing method or type. .
한편, 상기 물유리는 졸혼합물과 혼합 후 메탄올(methanol)과 혼합하여 사용하는 것이 바람직하다.Meanwhile, the water glass is preferably used after mixing with the sol mixture and then with methanol.
그리고, 상기 기능성 충진제는, 티탄산칼륨(potassium titanate), 알루미나 또는 천연광물인 토르말린(tourmaline), 황토, 견운모, 자수정, 생광석, 죽탄, 의왕석, 귀양석, 흑요석, 맥반석, 광명석, 용암, 귀신석 중에서 단독 또는 2종 이상 병용하여 사용하고, 상기 융점조절제는, 장석 또는 운모 중에서 단독 또는 병용하여 사용하는 것이 바람직하지만, 여기에 한정되는 것은 아니고 이미 공지된 다양한 충진제 및 융점조절제의 사용이 가능하다.In addition, the functional filler is potassium titanate, alumina or natural mineral tourmaline, ocher, sericite, amethyst, raw ore, bamboo charcoal, Uiwangseok, gwiyangseok, obsidian stone, elvan, light stone, lava, It is preferable to use the ghost stone alone or in combination of two or more, and the melting point regulator is preferably used alone or in combination with feldspar or mica, but it is not limited thereto, and various fillers and melting point regulators already known can be used. do.
본 발명은 가열이 수반되는 조리용품이나 생활용품에 코팅되는 세라믹 코팅제에 발열촉진제를 첨가하여 발열기능을 향상시킴으로써 가열 효율 등을 향상시킬 수 있는 효과가 있다. 또한 입자크기가 각기 다른 다양한 졸을 포함하는 무기질 결합제, 기능성 충진제, 물유리, 융점조절제 및 안료를 포함하여 이루어짐으로써, 입자크기가 각기 다른 다양한 졸을 사용하여 혼합 조밀도를 증대시키고, 여기에 물유리를 혼합하여 금속의 내구성 및 졸 간의 결합력을 증대시키며, 이로 인해 코팅제의 내구성을 더욱 향상시킬 수 있는 효과가 있다.The present invention has an effect of improving heating efficiency and the like by improving a heating function by adding a heating accelerator to a ceramic coating agent coated on cooking utensils or daily necessities accompanied by heating. In addition, by including inorganic binders, functional fillers, water glass, melting point regulators, and pigments including various sols having different particle sizes, the mixing density is increased by using various sols having different particle sizes, and water glass is added thereto. By mixing, the durability of the metal and the bonding strength between the sols are increased, and thus, the durability of the coating agent can be further improved.
상기의 효과를 달성하기 위한 본 발명은 발열기능이 향상된 무기질 세라믹 코팅제 조성물에 관한 것으로서, 본 발명의 기술적 구성을 이해하는데 필요한 부분만이 설명되며 그 이외 부분의 설명은 본 발명의 요지를 흩트리지 않도록 생략될 것이라는 것을 유의하여야 한다.The present invention for achieving the above effect relates to an inorganic ceramic coating composition with improved exothermic function, and only parts necessary for understanding the technical configuration of the present invention are described, and other parts are described so as not to distract from the gist of the present invention. Note that it will be omitted.
이하 본 발명에 따른 발열기능이 향상된 무기질 세라믹 코팅제 조성물을 상세히 설명하면 다음과 같다.Hereinafter, the inorganic ceramic coating composition with improved heating function according to the present invention will be described in detail.
본 발명은 무기질 결합제 100 중량부에 대하여, 발열촉진제 5 ~ 10 중량부, 기능성 충진제 7 ~ 12 중량부, 물유리 3 ~ 10 중량부, 융점조절제 5 ~ 10 중량부 및 안료 1 ~ 3 중량부로 이루어지는 것을 특징으로 한다.The present invention consists of 5 to 10 parts by weight of a heat accelerator, 7 to 12 parts by weight of a functional filler, 3 to 10 parts by weight of water glass, 5 to 10 parts by weight of a melting point regulator, and 1 to 3 parts by weight of a pigment, based on 100 parts by weight of the inorganic binder. to be characterized
본 발명에서 발열촉진제는 발열기능을 향상시키기 위해 첨가되는 것으로 산화알루미늄, 수산화알루미늄, 산화마그네슘, BN, 질화규소, AlN 또는 산화아연 중에서 단독 또는 2종 이상 병용하여 사용할 수 있지만, 반드시 여기에 한정되는 것은 아니고 발열기능을 향상시킬 수 있는 다양한 물질의 적용이 가능하다.In the present invention, the exothermic accelerator is added to improve the exothermic function, and can be used alone or in combination of two or more of aluminum oxide, aluminum hydroxide, magnesium oxide, BN, silicon nitride, AlN, or zinc oxide, but is not necessarily limited thereto It is possible to apply various materials that can improve the heating function.
한편, 상기 발열촉진제는 입자크기는 0.1 ~ 20㎛인 것을 사용하는 것이 바람직하며, 입자크기가 상기 범위를 벗어날 경우 발열기능 향상 효율이 미비해질 우려가 있으나, 반드시 상기 범위에 한정되는 것은 아니고 코팅제 조성물의 적용대상이나 사용환경 등에 따라 가변적일 수 있다. 아울러, 입자의 모양이나 형태 또한 특별히 한정하지 않는다.On the other hand, it is preferable to use the heat accelerator having a particle size of 0.1 to 20 μm, and if the particle size is out of the above range, there is a concern that the efficiency of improving the heating function may be insufficient, but it is not necessarily limited to the above range, and the coating composition It can be variable depending on the target of application or use environment. In addition, the shape or shape of the particles is also not particularly limited.
한편, 상기 발열촉진제의 함량이 5 중량부 미만일 경우 발열기능 향상효율이 미비해질 우려가 있으며, 10 중량부를 초과할 경우 코팅제의 코팅 작업성이 저하될 우려가 있다.On the other hand, if the content of the heat accelerator is less than 5 parts by weight, there is a concern that the efficiency of improving the heating function may be insufficient, and if it exceeds 10 parts by weight, the coating workability of the coating agent may be deteriorated.
본 발명에서 무기질 결합제는 코팅막의 내구성, 내마모성과 같은 기계적 물성과 내식성과 같은 화학적 물성 및 열전도율을 향상시키기 위한 것으로서, 무기질 결합제의 혼합량은 100 중량부인 것이 바람직하며, 특히, 본 발명에서 사용되는 무기질 결합제는 입자크기(평균 입경)가 각기 다른 다양한 졸을 포함하여 그 혼합 조밀도를 증대시킨다.In the present invention, the inorganic binder is used to improve mechanical properties such as durability and abrasion resistance, chemical properties such as corrosion resistance, and thermal conductivity, and the mixing amount of the inorganic binder is preferably 100 parts by weight. In particular, the inorganic binder used in the present invention contains various sols with different particle sizes (average particle diameter) to increase their mixing density.
구체적으로, 상기 무기질 결합제는 실란 화합물 40 ~ 50 중량부, 실리카 졸 20 ~ 25중량부, 알루미나 졸 15 ~ 20 중량부 및 지르코니아 졸 15 ~ 20 중량부로 이루어진다.Specifically, the inorganic binder is composed of 40 to 50 parts by weight of a silane compound, 20 to 25 parts by weight of silica sol, 15 to 20 parts by weight of alumina sol, and 15 to 20 parts by weight of zirconia sol.
상기에서 실란 화합물은 바인더 역할을 하는 것으로서, 실란 화합물의 혼합량은 무기질 결합제 100 중량부에 대하여 40 ~ 50 중량부인 것이 바람직하다. 실란 혼합물의 혼합량이 상기에서 한정한 범위를 벗어날 경우 실란 화합물과 무기질 혼합물의 결합력의 저하로 고열에서 박리현상이 일어날 우려가 있다.In the above, the silane compound serves as a binder, and the mixing amount of the silane compound is preferably 40 to 50 parts by weight based on 100 parts by weight of the inorganic binder. If the mixing amount of the silane mixture is out of the above-limited range, there is a concern that peeling may occur at high temperature due to a decrease in bonding strength between the silane compound and the inorganic mixture.
그리고, 상기 실란 화합물은 화학식이 RnSiX4-n인 실란 또는 그로부터 파생된 올리고머를 사용하는 것이 바람직하며, 상기 화학식 RnSiX4-n에서 X는 서로 같거나 다르고, 가수분해 가능한 기 또는 히드록시 기이고, 라디칼 R은 서로 같거나 다르고, 수소, 탄소수 10 미만의 알킬기를 나타내고, n은 0, 1 또는 2인 실란이 하나 이상 사용된다.In addition, the silane compound is preferably a silane having the formula R n SiX 4 -n or an oligomer derived therefrom . oxy group, the radicals R are the same or different from each other, represent hydrogen, an alkyl group having less than 10 carbon atoms, and at least one silane in which n is 0, 1 or 2 is used.
상기에서 실리카 졸은 무정질 실리카 미립자가 수중에서 콜로이드 미립자를 형성하여 실란 화합물과 화학반응으로 결합되는 것으로서, 무기질 결합제 100 중량부에 대하여 20 ~ 25 중량부가 혼합되는 것이 바람직하다. 실리카 졸의 혼합량이 상기 범위를 벗어날 경우에는 실란 화합물의 결합력의 약화로 물성이 저하될 우려가 있다.In the above silica sol, amorphous silica fine particles form colloidal fine particles in water and are combined with a silane compound through a chemical reaction, and it is preferable to mix 20 to 25 parts by weight based on 100 parts by weight of the inorganic binder. When the mixing amount of the silica sol is out of the above range, physical properties may deteriorate due to weakening of the binding force of the silane compound.
그리고 상기 실리카 졸은 0.2 ~ 1.0㎛ 입자크기의 분말 산화규소 20 ~ 40 중량%에 분산매로 물 60 ~ 80 중량%를 혼합시켜 사용하는 것이 바람직하며, 필요에 따라 상기 혼합물의 량을 적절히 조절하여 사용할 수 있다.In addition, the silica sol is preferably used by mixing 20 to 40% by weight of powdered silicon oxide having a particle size of 0.2 to 1.0㎛ with 60 to 80% by weight of water as a dispersion medium. can
상기에서 알루미나 졸은 낮은 온도에서 우수한 소결 밀도를 형성하여 도막의 표면경도, 내마모성, 내구성과 같은 기계적 특성과 내알칼리성, 내식성과 같은 화학적 특성을 강화시키기는 역할을 하는 것으로, 무기질 결합제 100 중량부에 대하여 15 ~ 20 중량부인 것이 바람직하다. 알루미나 졸의 혼합량이 15 중량부 미만이 될 경우 소결 밀도가 떨어져 도막의 물리적 화학적 특성이 저하될 우려가 있고, 20 중량부를 초과할 경우 도막의 소결 밀도의 향상으로 물리적 화학적 특성은 향상될 수 있지만 소결 밀도의 향상으로 도리어 도막의 표면이 변형될 우려가 있다.In the above, the alumina sol forms an excellent sintering density at a low temperature to enhance mechanical properties such as surface hardness, abrasion resistance, and durability of the coating film, and chemical properties such as alkali resistance and corrosion resistance, and inorganic binder 100 parts by weight 15 to 20 parts by weight is preferred. If the mixing amount of alumina sol is less than 15 parts by weight, the physical and chemical properties of the coating film may deteriorate due to a decrease in sintering density. On the contrary, there is a possibility that the surface of the coating film may be deformed due to the improvement in density.
그리고 상기 알루미나 졸은 0.2 ~ 1.0㎛ 입자크기의 분말 산화알루미늄 10 ~ 20 중량%에 분산매로 물 80 ~ 90 중량%를 혼합시켜 사용하는 것이 바람직하며, 필요에 따라 상기 혼합물의 량을 적절히 조절하여 사용할 수 있다.In addition, the alumina sol is preferably used by mixing 80 to 90 wt% of water as a dispersion medium with 10 to 20 wt% of powdered aluminum oxide having a particle size of 0.2 to 1.0 μm. can
상기에서 지르코니아 졸은 소결시 높은 강도와 경도로 인해 온도변화에 강하여 내열성과 내식성과 같은 물성을 향상시키는 역할을 하는 것으로 무기질 결합제 100 중량부에 대하여 15 ~ 20 중량부인 것이 바람직하다. 지르코니아 졸의 혼합량이 15 중량부 미만이 될 경우 강도 및 경도의 저하로 물성이 저하될 우려가 있고, 지르코니아 졸의 혼합량이 20 중량부를 초과할 경우 강도 및 경도의 물성은 향상될 수 있지만 충격력이 약해질 우려가 있다.The zirconia sol is resistant to temperature change due to its high strength and hardness during sintering and serves to improve physical properties such as heat resistance and corrosion resistance, and is preferably 15 to 20 parts by weight based on 100 parts by weight of the inorganic binder. If the mixing amount of zirconia sol is less than 15 parts by weight, physical properties may deteriorate due to a decrease in strength and hardness, and if the mixing amount of zirconia sol exceeds 20 parts by weight, physical properties such as strength and hardness may be improved, but the impact force is about There is a risk of breaking down.
그리고 상기 지르코니아 졸은 0.2 ~ 1.0㎛ 입자크기의 분말 지르코니아 10 ~ 20 중량%에 분산매로 물 80 ~ 90 중량%를 혼합시켜 사용하는 것이 바람직하며, 필요에 따라 상기 혼합물의 량을 적절히 조절하여 사용할 수 있다.In addition, the zirconia sol is preferably used by mixing 80 to 90 wt% of water as a dispersion medium with 10 to 20 wt% of powdered zirconia having a particle size of 0.2 to 1.0 μm. there is.
본 발명에서 기능성 충진제는 실란 화합물과 무기질 혼합물 사이에서 도막의 크랙을 방지하고 점도를 조절하여 도막의 물리적 화학적 특성을 개선시키는 역할을 하는 것으로서, 기능성 충전제의 혼합량은 무기질 결합제 100 중량부에 대하여 7~12 중량부인 것이 바람직하다. 기능성 충진제의 혼합량이 7 중량부 미만이 될 경우 도막의 광택이나 접착력의 저하가 우려되고, 12 중량부를 초과할 경우 도막의 표면이 거칠게 되는 등 오히려 악영향이 발생할 우려가 있다.In the present invention, the functional filler serves to improve the physical and chemical properties of the coating film by preventing cracks in the coating film and controlling the viscosity between the silane compound and the inorganic mixture, and the mixing amount of the functional filler is 7 to 7 parts based on 100 parts by weight of the inorganic binder. It is preferably 12 parts by weight. If the mixing amount of the functional filler is less than 7 parts by weight, there is concern about the decrease in gloss or adhesion of the coating film, and if it exceeds 12 parts by weight, adverse effects such as roughening the surface of the coating film may occur.
그리고 상기에서 사용하는 기능성 충진제는 티탄산칼륨과 알루미나 또는 토르말린, 황토, 견운모, 자수정, 생광석, 죽탄, 의왕석, 귀양석, 흑요석, 맥반석, 광명석, 용암, 귀신석 중에서 1종 또는 그 이상을 선택한 혼합물을 사용하는 것이 바람직하지만, 여기에 한정되는 것은 아니고 이미 공지된 다양한 충진제를 사용할 수 있다.And the functional filler used in the above is potassium titanate, alumina or tourmaline, ocher, sericite, amethyst, raw ore, bamboo charcoal, Uiwangseok, gwiyangseok, obsidian stone, elvan, light myeongseok, lava, ghost stone, one or more It is preferred to use the selected mixture, but it is not limited thereto and various fillers already known can be used.
한편, 기능성 충진제는 입자형태가 침상 또는 판상으로 되어 있어, 결합제 사이에서 도막의 크랙을 방지하거나 코팅제의 점도를 조절해 주는 역할을 하는 것에 장점이 있다.On the other hand, the functional filler has a needle-shaped or plate-shaped particle shape, and has an advantage in that it serves to prevent cracks in the coating film between binders or to control the viscosity of the coating agent.
본 발명에서 물유리는 금속의 내구성 및 졸 간의 결합력을 증대시키기 위해 첨가되는 것으로, 리튬실리케이트, 칼륨실리케이트, 소듐실리케이트, 포타슘실리케이트, 지르코늄실리케이트, 마그네슘실리케이트 또는 티타늄 실리케이트 중에서 단독 또는 2종 이상 병용하여 사용하는 것이 바람직하지만, 여기에 한정되는 것은 아니며, 특정 제조방법이나 종류에 한정하지 않고 이미 공지된 다양한 방법으로 제조된 다양한 종류의 물유리를 사용할 수 있다. In the present invention, water glass is added to increase the durability of metal and the bonding strength between sol, and is used alone or in combination of two or more among lithium silicate, potassium silicate, sodium silicate, potassium silicate, zirconium silicate, magnesium silicate, or titanium silicate. Although it is preferable, it is not limited thereto, and various types of water glass manufactured by various known methods may be used without being limited to a specific manufacturing method or type.
한편, 상기 물유리의 함량이 3 중량부 미만일 경우, 내구성 및 졸 간 결합력 향상 효과가 미비할 우려가 있으며, 10 중량부를 초과할 경우 도막의 상태변화 및 저장 안정성이 저하될 우려가 있다.On the other hand, if the content of the water glass is less than 3 parts by weight, there is a concern that durability and bonding strength between sols may be insufficient, and if it exceeds 10 parts by weight, there is a concern that the state change of the coating film and storage stability may be deteriorated.
아울러, 상기 물유리는, 격한 반응에 의해 겔화가 진행되는데 이를 방지하기 위하여 사전에 졸혼합 용액과 물유리를 혼합한 후 교반하면서 메탄올을 서서히 투입하도록 한다(예를 들면 메탄올과 물유리가 1 : 1 ~ 10 : 1 중량비).In addition, the water glass is gelated by a violent reaction. In order to prevent this, the sol mixed solution and the water glass are mixed in advance, and then methanol is slowly added while stirring (for example, methanol and water glass are 1: 1 to 10). : 1 weight ratio).
본 발명에서 융점조절제는 도막을 소결시켜 코팅막을 형성할 때 혼합물의 용융상태를 낮추어 보다 저온에서 도막을 형성시키는 역할을 하는 것으로서, 융점조절제의 혼합량은 무기질 결합제 100 중량부에 대하여 5 ~ 10 중량부인 것이 바람직하다. 융점조절제의 혼합량이 5 중량부 미만이 될 경우 코팅막을 형성할 때 소결온도가 상승할 우려가 있고, 10 중량부를 초과할 경우 상대적으로 기타 혼합물의 혼합량 부족으로 소성시 도막이 흘러 온도 저하시 수축현상의 발생으로 인해 도리어 도막의 밀도가 저하될 우려가 있다.In the present invention, the melting point regulator serves to form a coating film at a lower temperature by lowering the melting state of the mixture when forming a coating film by sintering the coating film, and the mixing amount of the melting point regulator is 5 to 10 parts by weight based on 100 parts by weight of the inorganic binder it is desirable If the mixing amount of the melting point regulator is less than 5 parts by weight, the sintering temperature may rise when forming a coating film, and if it exceeds 10 parts by weight, the mixing amount of other mixtures is relatively insufficient, causing the coating film to flow during firing and shrinkage when the temperature decreases. On the contrary, there is a possibility that the density of the coating film may be lowered due to the generation.
상기에서 사용되는 융점조절제는 장석 또는 운모 중에서 단독 또는 병용하여 사용하는 것이 바람직하지만, 여기에 한정되는 것은 아니고 이미 공지된 다양한 충진제 및 융점조절제의 사용이 가능하다.The melting point regulator used in the above is preferably used alone or in combination in feldspar or mica, but is not limited thereto, and various fillers and melting point regulators already known can be used.
그리고 본 발명에 따른 세라믹 코팅제 조성물은 코팅층의 색상을 내기 위해 안료를 사용하며, 안료의 혼합량은 무기질 결합제 100 중량부에 대하여 1 ~ 3 중량부인 것이 바람직하다. 또한 본 발명에서 안료의 사용량은 상기에서 한정한 바 있지만 안료의 색상 또는 소비자의 요구나 제조자의 필요에 따라 상기에서 정한 범위에만 반드시 한정되는 것은 아니고 안료의 채도, 명도 등에 따라 적절히 조정되어 질 수 있고, 그리고 안료의 종류는 특별히 한정하는 것은 아니고 통상적인 안료 중에서 적절히 선택하여 사용할 수 있다.In addition, the ceramic coating composition according to the present invention uses a pigment to color the coating layer, and the mixing amount of the pigment is preferably 1 to 3 parts by weight based on 100 parts by weight of the inorganic binder. In addition, the amount of the pigment used in the present invention is limited to the above, but is not necessarily limited to the range set above according to the color of the pigment or the consumer's demand or the manufacturer's need, and can be appropriately adjusted according to the saturation, brightness, etc. of the pigment , And the type of pigment is not particularly limited, and may be appropriately selected and used from conventional pigments.
한편, 본 발명에서 세라믹 코팅층의 두께는 20 ~ 60㎛인 것이 바람직하며,세라믹 코팅층의 두께가 20㎛ 미만이 될 경우 코팅막의 소결 밀도의 한계로 내구성, 내마모성과 같은 기계적 물성과 내식성과 같은 화학적 물성이 저하될 우려가 있고, 세라믹 코팅막의 두께가 60㎛을 초과할 경우 기계적 화학적 물성은 향상되지만 그에 따른 효과가 미약하다.Meanwhile, in the present invention, the thickness of the ceramic coating layer is preferably 20 to 60 μm, and when the thickness of the ceramic coating layer is less than 20 μm, mechanical properties such as durability and abrasion resistance and chemical properties such as corrosion resistance are limited due to the limit of sintering density of the coating film. There is a risk of degradation, and when the thickness of the ceramic coating film exceeds 60 μm, the mechanical and chemical properties are improved, but the effect thereof is weak.
즉, 본 발명은 입자크기가 각기 다른 다양한 졸을 사용하여 혼합 조밀도를 증대시키고, 여기에 물유리를 혼합하여 금속의 내구성 및 졸 간의 결합력을 증대시킴으로써, 코팅제의 내구성을 더욱 향상시킬 수 있게 된다.That is, in the present invention, the durability of the coating agent can be further improved by increasing the mixing density by using various sols having different particle sizes, and by mixing water glass thereto to increase the durability of metal and the bonding strength between the sols.
이하, 본 발명을 아래 실시예에 의거하여 더욱 상세히 설명하겠는바 본 발명이 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail based on the following examples, but the present invention is not limited by the examples.
1. 무기질 세라믹 코팅제 조성물의 제조1. Preparation of inorganic ceramic coating composition
(제조예 1)(Production Example 1)
무기질 결합제 100 중량부에 대하여, 발열촉진제(입자크기 10㎛의 산화알루미늄) 5 중량부, 기능성 충진제인 티탄산칼륨 7 중량부, 물유리인 리튬실리케이트 10 중량부, 융점조절제인 장석 5 중량부 및 안료 1 중량부를 혼합하여 무기질 세라믹 코팅제를 제조하였다. 이때, 상기 무기질 결합제는, 화학식이 RnSiX4-n인 실란 화합물 50 중량부와, 1.0㎛ 입자크기의 분말 산화규소 40 중량%에 물 60 중량%를 혼합한 실리카 졸 20 중량부와, 0.2㎛ 입자크기의 분말 산화알루미늄 10 중량%에 물 90 중량%를 혼합한 알루미나 졸 15 중량부 및, 1.0㎛ 입자크기의 분말 지르코니아 10 중량%에 물 90 중량%를 혼합한 지르코니아 졸 15 중량부로 이루어지되, 상기 실란 화합물은 화학식 RnSiX4-n에서 X는 서로 같고, 가수분해 가능한 기이고, 라디칼 R은 서로 같고, 수소, 탄소수 10 미만의 알킬기를 나타내고, n은 1인 실란을 사용하였다.Based on 100 parts by weight of inorganic binder, 5 parts by weight of heat accelerator (aluminum oxide having a particle size of 10 μm), 7 parts by weight of potassium titanate as a functional filler, 10 parts by weight of lithium silicate as water glass, 5 parts by weight of feldspar as a melting point regulator and pigment 1 An inorganic ceramic coating agent was prepared by mixing parts by weight. At this time, the inorganic binder, 50 parts by weight of a silane compound having the chemical formula R n SiX 4-n , 20 parts by weight of a silica sol obtained by mixing 60% by weight of water with 40% by weight of powdered silicon oxide having a particle size of 1.0 μm, and 0.2 It consists of 15 parts by weight of alumina sol mixed with 90% by weight of water in 10% by weight of powdered aluminum oxide having a particle size of ㎛, and 15 parts by weight of zirconia sol mixed with 90% by weight of water in 10% by weight of powdered zirconia having a particle size of 1.0㎛. , In the silane compound, in the formula R n SiX 4-n, X is the same as each other, is a hydrolyzable group, radicals R are the same as each other, represent hydrogen, an alkyl group having less than 10 carbon atoms, and n is 1 silane was used.
(제조예 2)(Production Example 2)
무기질 결합제 100 중량부에 대하여, 발열촉진제(입자크기 0.1㎛의 산화마그네슘) 10 중량부, 기능성 충진제인 알루미나 12 중량부, 물유리인 소듐실리케이트 3 중량부를 혼합하고, 메탄올을 서서히 투입한 후, 융점조절제인 운모 10 중량부 및 안료 3 중량부를 혼합하여 무기질 세라믹 코팅제를 제조하였다. 이때, 상기 무기질 결합제는, 화학식이 RnSiX4-n인 실란 화합물 40 중량부와, 0.2㎛ 입자크기의 분말 산화규소 20 중량%에 물 80 중량%를 혼합한 실리카 졸 25 중량부와, 1.0㎛ 입자크기의 분말 산화알루미늄 20 중량%에 물 80 중량%를 혼합한 알루미나 졸 20 중량부 및, 0.2㎛ 입자크기의 분말 지르코니아 20 중량%에 물 80 중량%를 혼합한 지르코니아 졸 20 중량부로 이루어지되, 상기 실란 화합물은 화학식 RnSiX4-n에서 X는 서로 같고, 가수분해 가능한 기이고, 라디칼 R은 서로 같고, 수소, 탄소수 10 미만의 알킬기를 나타내고, n은 1인 실란을 사용하였다.With respect to 100 parts by weight of the inorganic binder, 10 parts by weight of an exothermic accelerator (magnesium oxide having a particle size of 0.1 μm), 12 parts by weight of alumina as a functional filler, and 3 parts by weight of sodium silicate as water glass were mixed, and methanol was gradually added, followed by melting point regulator An inorganic ceramic coating agent was prepared by mixing 10 parts by weight of phosphorus mica and 3 parts by weight of a pigment. At this time, the inorganic binder, 40 parts by weight of a silane compound having the formula R n SiX 4-n , 25 parts by weight of a silica sol obtained by mixing 80% by weight of water with 20% by weight of powdered silicon oxide having a particle size of 0.2 μm, and 1.0 It consists of 20 parts by weight of alumina sol mixed with 80% by weight of water in 20% by weight of powdered aluminum oxide having a particle size of ㎛, and 20 parts by weight of zirconia sol mixed with 80% by weight of water in 20% by weight of 0.2㎛ particle size powdered zirconia. , In the silane compound, in the formula R n SiX 4-n, X is the same as each other, is a hydrolyzable group, radicals R are the same as each other, represent hydrogen, an alkyl group having less than 10 carbon atoms, and n is 1 silane was used.
(제조예 3)(Production Example 3)
무기질 결합제 100 중량부에 대하여, 발열촉진제(입자크기 20㎛의 산화아연) 10 중량부, 기능성 충진제인 알루미나 12 중량부, 물유리인 소듐실리케이트 3 중량부를 혼합하고, 메탄올을 서서히 투입한 후, 융점조절제인 운모 10 중량부 및 안료 3 중량부를 혼합하여 무기질 세라믹 코팅제를 제조하였다. 이때, 상기 무기질 결합제는, 화학식이 RnSiX4-n인 실란 화합물 40 중량부와, 0.2㎛ 입자크기의 분말 산화규소 20 중량%에 물 80 중량%를 혼합한 실리카 졸 25 중량부와, 1.0㎛ 입자크기의 분말 산화알루미늄 20 중량%에 물 80 중량%를 혼합한 알루미나 졸 20 중량부 및, 0.2㎛ 입자크기의 분말 지르코니아 20 중량%에 물 80 중량%를 혼합한 지르코니아 졸 20 중량부로 이루어지되, 상기 실란 화합물은 화학식 RnSiX4-n에서 X는 서로 같고, 가수분해 가능한 기이고, 라디칼 R은 서로 같고, 수소, 탄소수 10 미만의 알킬기를 나타내고, n은 1인 실란을 사용하였다.With respect to 100 parts by weight of the inorganic binder, 10 parts by weight of an exothermic accelerator (zinc oxide with a particle size of 20 μm), 12 parts by weight of alumina as a functional filler, and 3 parts by weight of sodium silicate as water glass were mixed, methanol was gradually added, and then the melting point regulator An inorganic ceramic coating agent was prepared by mixing 10 parts by weight of phosphorus mica and 3 parts by weight of a pigment. At this time, the inorganic binder, 40 parts by weight of a silane compound having the formula R n SiX 4-n , 25 parts by weight of a silica sol obtained by mixing 80% by weight of water with 20% by weight of powdered silicon oxide having a particle size of 0.2 μm, and 1.0 It consists of 20 parts by weight of alumina sol mixed with 80% by weight of water in 20% by weight of powdered aluminum oxide having a particle size of ㎛, and 20 parts by weight of zirconia sol mixed with 80% by weight of water in 20% by weight of 0.2㎛ particle size powdered zirconia. , In the silane compound, in the formula R n SiX 4-n, X is the same as each other, is a hydrolyzable group, radicals R are the same as each other, represent hydrogen, an alkyl group having less than 10 carbon atoms, and n is 1 silane was used.
2. 세라믹 코팅 금속의 제조2. Manufacturing of ceramic coated metal
(실시예 1)(Example 1)
상기 제조예 1에 따른 무기질 세라믹 코팅제를 노즐(nozzle) 구경 1.2㎜의 스프레이 건(spry gun)을 사용하여 압력 7㎏/㎤ 하에서 20㎛ 두께로 알루미늄판 표면에 코팅한 후, 200℃의 온도에서 60분 동안 소결시켜 코팅층을 형성하였다.The inorganic ceramic coating agent according to Preparation Example 1 was coated on the surface of the aluminum plate to a thickness of 20 μm under a pressure of 7 kg/cm 3 using a spray gun with a nozzle diameter of 1.2 mm, and then at a temperature of 200° C. A coating layer was formed by sintering for 60 minutes.
(실시예 2)(Example 2)
상기 제조예 2에 따른 무기질 세라믹 코팅제를 노즐 구경 1.2㎜의 스프레이 건(gun)을 사용하여 압력 7㎏/㎤ 하에서 40㎛ 두께로 알루미늄판 표면에 코팅한 후, 200℃의 온도에서 60분 동안 소결시켜 코팅층을 형성하였다.The inorganic ceramic coating agent according to Preparation Example 2 was coated on the surface of the aluminum plate to a thickness of 40 μm under a pressure of 7 kg/cm 3 using a spray gun with a nozzle diameter of 1.2 mm, and then sintered at a temperature of 200° C. for 60 minutes. to form a coating layer.
(실시예 3)(Example 3)
상기 제조예 3에 따른 무기질 세라믹 코팅제를 노즐 구경 1.2㎜의 스프레이 건(gun)을 사용하여 압력 7㎏/㎤ 하에서 60㎛ 두께로 알루미늄판 표면에 코팅한 후, 200℃의 온도에서 60분 동안 소결시켜 코팅층을 형성하였다.The inorganic ceramic coating agent according to Preparation Example 3 was coated on the surface of the aluminum plate to a thickness of 60 μm under a pressure of 7 kg/cm 3 using a spray gun with a nozzle diameter of 1.2 mm, and then sintered at a temperature of 200° C. for 60 minutes. to form a coating layer.
(비교예 1)(Comparative Example 1)
실시예 1과 동일하게 제조하되, 제조예 1에 따른 무기질 세라믹 코팅제에서 발열촉진제를 사용하지 않았으며, 또한 다양한 졸을 사용하지 않고 단일 입자크기를 가지는 실리카졸(1.0㎛ 입자크기의 분말 산화규소 40 중량%에 물 60 중량%를 혼합한 실리카 졸)만을 사용하였으며, 물유리를 첨가하지 않았다.It was prepared in the same manner as in Example 1, but the inorganic ceramic coating agent according to Preparation Example 1 did not use an exothermic accelerator, and also did not use various sol and silica sol having a single particle size (powder silicon oxide 40 with a particle size of 1.0 μm). Silica sol in which 60% by weight of water was mixed) was used, and water glass was not added.
(비교예 2)(Comparative Example 2)
실시예 2와 동일하게 제조하되, 제조예 2에 따른 무기질 세라믹 코팅제에서 발열촉진제를 사용하지 않았으며, 또한 다양한 졸을 사용하지 않고 단일 입자크기를 가지는 실리카졸(0.2㎛ 입자크기의 분말 산화규소 20 중량%에 물 80 중량%를 혼합한 실리카 졸)만을 사용하였으며, 물유리를 첨가하지 않았다.It was prepared in the same manner as in Example 2, but the inorganic ceramic coating agent according to Preparation Example 2 did not use an exothermic accelerator, and also did not use various sol and silica sol having a single particle size (0.2㎛ particle size powder silicon oxide 20 Silica sol in which 80% by weight of water was mixed) was used, and water glass was not added.
(비교예 3)(Comparative Example 3)
실시예 3과 동일하게 제조하되, 제조예 3에 따른 무기질 세라믹 코팅제에서 발열촉진제를 사용하지 않았으며, 또한 다양한 졸을 사용하지 않고 단일 입자크기를 가지는 실리카졸(1.0㎛ 입자크기의 분말 산화규소 40 중량%에 물 60 중량%를 혼합한 실리카 졸)만을 사용하였으며, 물유리를 첨가하지 않았다.It was prepared in the same manner as in Example 3, but the heat accelerator was not used in the inorganic ceramic coating agent according to Preparation Example 3, and silica sol having a single particle size without using various sol (powder silicon oxide 40 with a particle size of 1.0 μm) Silica sol in which 60% by weight of water was mixed) was used, and water glass was not added.
3. 측정방법 및 평가3. Measurement method and evaluation
상기 실시예 1 내지 3과, 비교예 1 내지 3에 대하여 아래의 시험방법에 의해 발열기능, 도막 강도, 내구성, 내수성, 내식성을 측정하였으며, 그 결과를 아래 [표 1]에 나타내었다.For Examples 1 to 3 and Comparative Examples 1 to 3, heating function, coating strength, durability, water resistance, and corrosion resistance were measured by the following test methods, and the results are shown in [Table 1] below.
1) 발열기능 시험은 상기 실시예 및 비교예에 따른 세라믹 코팅 금속을 전기열판에 올려두고 2분후 금속 표면 온도를 측정하여 평가하였다.1) The heating function test was evaluated by placing the ceramic coated metal according to the above Examples and Comparative Examples on an electric heating plate and measuring the metal surface temperature after 2 minutes.
2) 도막 강도, 내수성(내비등수성 시험에 따름), 내식성 시험은 KSD 8303의 알루미늄 및 알루미늄 합금의 양극산화 도장 복합 피막의 측정방법에 따라 측정하여 평가하였다.2) The coating film strength, water resistance (according to the boiling water resistance test), and corrosion resistance test were measured and evaluated according to the KSD 8303 method for measuring anodized composite coatings of aluminum and aluminum alloys.
3) 내구성 시험은 BS 7069/1998에 따라 내마모성을 측정하되, 코팅층이 형성된 시편을 3M 7447 스코치브라이트(scotchbrite)에 놓고 4.5kg의 하중으로 좌우 왕복시켜 코팅층이 벗겨지는 사이클(cycle) 수를 측정하여 평가하였다.3) In the durability test, the abrasion resistance was measured according to BS 7069/1998, but the specimen with the coating layer was placed on a 3M 7447 scotchbrite and reciprocated left and right with a load of 4.5 kg to measure the number of cycles in which the coating layer was peeled off. evaluated.
division
실시예
Example
비교예
comparative example
상기 [표 1]에서와 같이, 본 발명의 실시예 1 내지 3에서 사용된 무기질 세라믹 코팅제는, 비교예 1 내지 3에서 사용된 무기질 세라믹 코팅제에 비하여 도막강도, 내구성, 내식성 등이 우수할 뿐만 아니라, 특히 발열기능이 매우 우수함을 알 수 있다.As shown in [Table 1], the inorganic ceramic coating agent used in Examples 1 to 3 of the present invention has excellent film strength, durability, corrosion resistance, etc. compared to the inorganic ceramic coating agent used in Comparative Examples 1 to 3. , in particular, it can be seen that the heating function is very excellent.
상술한 바와 같이, 본 발명에 따른 발열기능이 향상된 무기질 세라믹 코팅제 조성물의 우수성에 대하여 상기의 실시예를 통해 상세히 설명하였지만 본 발명은 상기의 구성에 의해서만 반드시 한정되는 것은 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 본 발명을 다양하게 치환, 변형 및 변경시킬 수 있음을 이해할 수 있을 것이다.As described above, the superiority of the inorganic ceramic coating composition with improved heating function according to the present invention has been described in detail through the above examples, but the present invention is not necessarily limited only by the above configuration, and the technical idea of the present invention It will be understood that the present invention can be variously substituted, modified, and changed without departing from the range.
Claims (6)
무기질 결합제 100 중량부에 대하여, 발열촉진제 5 ~ 10 중량부, 기능성 충진제 7 ~ 12 중량부, 물유리 3 ~ 10 중량부, 융점조절제 5 ~ 10 중량부 및 안료 1 ~ 3 중량부로 이루어지는 것이며,
상기 발열촉진제는,
산화알루미늄(Al2O3), 수산화알루미늄(Al(OH)3), 산화마그네슘(MgO), BN(Boron Nitride), 질화규소(Si3N4), AlN(Aluminium Nitride) 또는 산화아연(ZnO) 중에서 단독 또는 2종 이상 병용하여 사용하되,
입자크기는 0.1 ~ 20㎛인 것이며,
상기 무기질 결합제는,
화학식이 RnSiX4-n인 실란(silane) 화합물 40 ~ 50 중량부와, 0.2 ~ 1.0㎛ 입자크기의 분말 산화규소(SiO2) 20 ~ 40 중량%에 물 60 ~ 80중량%를 혼합한 실리카 졸(silica sol) 20 ~ 25 중량부와, 0.2 ~ 1.0㎛ 입자크기의 분말 산화알루미늄(Al2O3) 10 ~ 20 중량%에 물 80 ~ 90 중량%를 혼합한 알루미나 졸(alumina sol) 15 ~ 20 중량부 및, 0.2 ~ 1.0㎛ 입자크기의 분말 지르코니아(ZrO2) 10 ~ 20중량%에 물 80 ~ 90 중량%를 혼합한 지르코니아 졸(zirconia sol) 15~20 중량부로 이루어지며,
상기 실란의 화학식 RnSiX4-n에서 X는 서로 같거나 다르고, 가수분해 가능한 기 또는 히드록시기(hydroxy group)이고, 라디칼(radical) R은 서로 같거나 다르고, 수소, 탄소수 10 미만의 알킬기(alkyl group)를 나타내고, n은 0, 1 또는 2인 실란이 하나 이상 사용되는 것이며,
상기 물유리는,
리튬실리케이트(lithium silicate), 칼륨실리케이트(kalium silicate), 소듐실리케이트(sodium silicate), 포타슘실리케이트(potassium silicate), 지르코늄실리케이트(zirconium silicate), 마그네슘실리케이트(magnesium silicate) 또는 티타늄 실리케이트(titanium silicate) 중에서 단독 또는 2종 이상 병용하여 사용하는 것이며,
상기 물유리는,
메탄올(methanol)과 혼합하여 사용하는 것이며,
상기 기능성 충진제는, 티탄산칼륨(potassium titanate), 알루미나(alumina) 또는 천연광물인 토르말린(tourmaline), 황토, 견운모, 자수정, 생광석, 죽탄, 의왕석, 귀양석, 흑요석, 맥반석, 광명석, 용암, 귀신석 중에서 단독 또는 2종 이상 병용하여 사용하고,
상기 융점조절제는, 장석 또는 운모 중에서 단독 또는 병용하여 사용하는 것인, 발열기능이 향상된 무기질 세라믹 코팅제 조성물.In the inorganic ceramic coating composition,
Based on 100 parts by weight of the inorganic binder, 5 to 10 parts by weight of a heat accelerator, 7 to 12 parts by weight of a functional filler, 3 to 10 parts by weight of water glass, 5 to 10 parts by weight of a melting point regulator, and 1 to 3 parts by weight of a pigment,
The heat accelerator,
Aluminum Oxide (Al 2 O 3 ), Aluminum Hydroxide (Al(OH) 3 ), Magnesium Oxide (MgO), BN (Boron Nitride), Silicon Nitride (Si 3 N 4 ), AlN (Aluminium Nitride) or Zinc Oxide (ZnO) Use alone or in combination of two or more of them,
The particle size is 0.1 ~ 20㎛,
The inorganic binder,
A mixture of 40 to 50 parts by weight of a silane compound having the chemical formula R n SiX 4-n and 20 to 40% by weight of powdered silicon oxide (SiO 2 ) having a particle size of 0.2 to 1.0 μm and 60 to 80% by weight of water. An alumina sol obtained by mixing 20 to 25 parts by weight of silica sol and 10 to 20% by weight of powdered aluminum oxide (Al 2 O 3 ) having a particle size of 0.2 to 1.0 μm and 80 to 90% by weight of water 15 to 20 parts by weight and 15 to 20 parts by weight of a zirconia sol obtained by mixing 80 to 90% by weight of water with 10 to 20% by weight of powdered zirconia (ZrO 2 ) having a particle size of 0.2 to 1.0 μm,
In the chemical formula R n SiX 4-n of the silane, X is the same as or different from each other, a hydrolyzable group or a hydroxy group, and the radicals R are the same as or different from each other, hydrogen, an alkyl group having less than 10 carbon atoms (alkyl group), where n is 0, 1 or 2, one or more silanes are used,
The water glass,
Alone from lithium silicate, potassium silicate, sodium silicate, potassium silicate, zirconium silicate, magnesium silicate or titanium silicate Or two or more are used in combination,
The water glass,
It is used by mixing with methanol,
The functional filler is potassium titanate, alumina, or natural mineral tourmaline, ocher, sericite, amethyst, raw ore, bamboo charcoal, Uiwangseok, Guiyangseok, obsidian, elvan, gwangmyeongseok, lava , used alone or in combination of two or more among ghost stones,
The melting point regulator is an inorganic ceramic coating composition with improved heating function, which is used alone or in combination in feldspar or mica.
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