KR101431001B1 - Eco-friendly dielectric glass containing Ta2O5 and its synthetic method - Google Patents

Eco-friendly dielectric glass containing Ta2O5 and its synthetic method Download PDF

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KR101431001B1
KR101431001B1 KR1020070135623A KR20070135623A KR101431001B1 KR 101431001 B1 KR101431001 B1 KR 101431001B1 KR 1020070135623 A KR1020070135623 A KR 1020070135623A KR 20070135623 A KR20070135623 A KR 20070135623A KR 101431001 B1 KR101431001 B1 KR 101431001B1
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oxide
weight
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sodium
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이영주
박언병
최승덕
박종일
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재단법인 포항산업과학연구원
주식회사 케이알엠
주식회사 미래세라텍
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Abstract

본 발명은 산화탄탈륨(Ta2O5)이 함유된 친환경 저융점 투명 유전체에 관한 것으로, 더욱 상세하게는 인체 및 환경에 유해한 납을 함유하지 않고, 산화탄탈륨(Ta2O5), 산화아연(ZnO), 산화붕소(B2O3), 산화규소(SiO2), 산화나트륨(Na2O)를 주성분으로 하는 친환경 저융점 투명 유전체에 관한 것이다. 상기 목적을 달성하기 위한 본 발명의 친환경 투명 유전체는 산화탄탈륨(Ta2O5) 5~35 중량%를 포함하고, 나머지는 산화아연(ZnO), 산화붕소(B2O3), 산회규소(SiO2), 산화나트륨(Na2O)를 포함하는 것을 특징으로 한다. 상기 산화나트륨(Na2O)은 탄산나트륨(Na2CO3)으로 대체할 수 있다. 상기 구성성분의 함량은 산화아연은 5~30 중량%, 산화붕소는 15~50 중량%, 산화규소는 3~15 중량%, 산화나트륨은 5~30중량%를 포함하는 것을 특징으로 한다. 중금속인 납(Pb) 이나 비스무스(Bi)를 함유하지 않기 때문에 환경 친화적인 특징을 가지며, 가지광선 투과율이 높고, 유리화 온도가 낮고, 유전상수가 적절하여 PDP용 유전체 재료로 사용될 수 있다.The present invention relates to an eco-friendly low melting point transparent dielectric material containing tantalum oxide (Ta 2 O 5 ), and more particularly to an eco-friendly low melting point transparent dielectric material containing tantalum oxide (Ta 2 O 5 ), zinc oxide ZnO), boron oxide (B 2 O 3), environmentally friendly low melting point as a main component silicon oxide (SiO 2), sodium (Na 2 O) oxidation relates to a transparent dielectric. In order to achieve the above object, the present invention provides an environmentally transparent transparent dielectric comprising 5 to 35% by weight of tantalum oxide (Ta 2 O 5 ), the balance being zinc oxide (ZnO), boron oxide (B 2 O 3 ) SiO 2 ), and sodium oxide (Na 2 O). The sodium oxide (Na 2 O) can be replaced with sodium carbonate (Na 2 CO 3 ). The content of the above components is 5 to 30% by weight of zinc oxide, 15 to 50% by weight of boron oxide, 3 to 15% by weight of silicon oxide, and 5 to 30% by weight of sodium oxide. (Pb) or bismuth (Bi) because it contains no heavy metals, it is environmentally friendly, has a high branch light transmittance, has a low vitrification temperature and a suitable dielectric constant and can be used as a dielectric material for a PDP.

친환경, 투명, 유리, 비정질, 유전체, 저온소성, 유전상수 Environmentally friendly, transparent, glass, amorphous, dielectric, low temperature plasticity, dielectric constant

Description

산화탄탈륨이 함유된 친환경 투명 유전체 및 그의 제조방법.{Eco-friendly dielectric glass containing Ta2O5 and its synthetic method}An eco-friendly transparent dielectric material containing tantalum oxide and a method for producing the same.

본 발명은 산화탄탈륨(Ta2O5)이 함유된 친환경 저융점 투명 유전체에 관한 것으로, 더욱 상세하게는 인체 및 환경에 유해한 납을 함유하지 않고, 산화탄탈륨(Ta2O5), 산화아연(ZnO), 산화붕소(B2O3), 산화규소(SiO2), 산화나트륨(Na2O)를 주성분으로 하는 친환경 저융점 투명 유전체에 관한 것이다.The present invention relates to an eco-friendly low melting point transparent dielectric material containing tantalum oxide (Ta 2 O 5 ), and more particularly to an eco-friendly low melting point transparent dielectric material containing tantalum oxide (Ta 2 O 5 ), zinc oxide ZnO), boron oxide (B 2 O 3), environmentally friendly low melting point as a main component silicon oxide (SiO 2), sodium (Na 2 O) oxidation relates to a transparent dielectric.

종래의 플라즈마 디스플레이 패널에 사용되는 투명 유전체용 유리 조성물은 전후면 유리기판의 열적 특성에 맞추어서 낮은 소성온도, 기판과 비슷한 선팽창계수, 적당한 유전상수 특성을 지닌 PbO, B2O3 및 SiO2를 주성분으로 한다.The glass composition for a transparent dielectric used in a conventional plasma display panel has PbO, B 2 O 3 and SiO 2 having a low sintering temperature, a linear expansion coefficient similar to that of the substrate, and a proper dielectric constant in accordance with the thermal characteristics of the front and rear glass substrates, .

이 유전체의 조성물로 PbO 계에 견줄만한 무연 조성물은 아직 개발되어 있지 않은 상황이다.현재 PDP의 상용 투명유전체로 쓰이고 있는 PbO계 유리조성들은 인체에 해롭고 환경오염에도 심각한 영향을 끼치는 PbO 성분을 다량 함유하고 있어 제조공정시 상기 유리의 상당한 양이 폐기되어 폐기시 폐수 중의 산 또는 알칼리 용액과 화학 반응을 일으키게 되면 토양 및 수질 오염에 의한 환경 공해를 유발시 키는 문제점이 있다. 또한 종래의 PbO를 다량 함유한 조성의 경우에는 최종제품에 있어서 대면적으로 만들 경우 그 중량에 있어서 상당한 부담으로 작용할 수 있다. 또한 납(Pb) 불함유 저융점유리 대체조성으로 쓰이는 Bi2O3계 유리나 알칼리토류산화물 중 BaO계 유리 역시 독극물로 분류되는 중금속 성분이 포함되어 있어 비환경친화성 물질이므로 이 또한 친환경재료들로 쓰이기는 적절치 못한 조성들이다.PbO-based glass compositions, which are currently used as transparent transparent dielectrics for PDPs, contain a large amount of PbO, which is harmful to the human body and seriously affects environmental pollution. And a considerable amount of the glass is discarded in the manufacturing process, causing a chemical reaction with the acid or alkali solution in the waste water at the time of disposal, causing environmental pollution due to soil and water pollution. Further, in the case of a composition containing a large amount of PbO in the prior art, it can be a considerable burden on the weight when it is made into a large area in the final product. Among Bi 2 O 3 -based glasses and alkaline earth oxides used as a substitute for lead (Pb) -based low melting point glass, BaO-based glass also contains a heavy metal component classified as a toxic substance and is a non-environmentally compatible material. Usage is inappropriate composition.

한국공개특허 제10-1999-0046605호에는 PbO 50~85 중량%, SiO2 7~25 중량% 및 B2O3 7~25 중량%가 주성분인 유전체 조성을 소개하고 있고, 한국공개특허 제2003-10416 호에서 Bi2O3 는 60~75 중량%, B2O3 4~15 중량%, SiO2 5~8 wt%, P2O5 1~18 중량%, Al2O3 1~3 중량%를 주성분으로 하는 저융점 무연 조성물의 유리에 관한 기술을 소개하고 있다. Korean Patent Laid-Open Publication No. 10-1999-0046605 discloses a dielectric composition containing as main components 50 to 85% by weight of PbO, 7 to 25% by weight of SiO 2 and 7 to 25% by weight of B 2 O 3 , 10416, 60 to 75 wt% of Bi 2 O 3 , 4 to 15 wt% of B 2 O 3 , 5 to 8 wt% of SiO 2 , 1 to 18 wt% of P 2 O 5, 1 to 3 wt% of Al 2 O 3 % ≪ / RTI > as a main component.

또한 일본 공개특허 제2000-226231호에 의하면 ZnO가 20 내지 45중량%이고, B2O3가 20 내지 34중량%이고, SiO2가 20 내지 45중량%, R2O(K2O, Na2O 및 Li2O)가 4 내지 12중량%이고, RO(BaO 및 CaO의 합)가 0 내지 3중량%이고, NaF가 0.5 내지 8중량%인 것을 특징으로 하는 무연 유리조성물을 소개하고 있다. 또한 미합중국 등록특허 제6,417,123호는 ZnO가 20 내지 45중량%이고, BaO가 15 내지 45중량%이고, B2O3가 15 내지 35중량%이고, SiO2가 3 내지 15중량%이고, PbO가 0 내지 24.5중량%인 유리조성물을 소개하고 있다. 상기 유리조성물들은 모두 PDP 투명유전체 및 격벽형성제등에 쓰일 유리조성물을 제공하고 있다. 그러나 상기 일본 공개특허의 유 리조성물은 R2O(K2O, Na2O, Li2O) 알칼리계 성분을 함유하여 전극과의 반응이 일어날 가능성이 높으며, 상기 미국특허의 유리조성물은 비록 감소된 양이기는 하지만 여전히 PbO계 성분을 사용함으로써 무연 저융점유리의 목적에 부합되지 않는다는 문제점이 제기되고 있다.Further, according to Japanese Patent Laid-Open No. 2000-226231, ZnO is 20 to 45 wt%, B 2 O 3 is 20 to 34 wt%, SiO 2 is 20 to 45 wt%, R 2 O (K 2 O, Na 2 O and Li 2 O) of 4 to 12 wt%, RO (a sum of BaO and CaO) of 0 to 3 wt%, and NaF of 0.5 to 8 wt% . US Patent No. 6,417,123 also discloses that ZnO is 20 to 45 wt%, BaO is 15 to 45 wt%, B 2 O 3 is 15 to 35 wt%, SiO 2 is 3 to 15 wt%, and PbO 0 to 24.5% by weight. The above glass compositions all provide glass compositions that can be used for PDP transparent dielectrics and barrier formers. However, the glass composition of the Japanese Patent Laid-open Publication No. 2001-325920 contains a R 2 O (K 2 O, Na 2 O, Li 2 O) alkaline component, and thus the reaction with the electrode is likely to occur. There is a problem that the use of the PbO-based component does not meet the purpose of the lead-free low-melting glass, though it is a reduced amount.

본 발명은 종래 Pb, Bi를 포함하는 유전체 유리조성물이 가지는 문제점을 해결하고자 안출된 것으로, 인체에 유해한 중금속 인 납(Pb) 또는 비스무스(Bi)를함유하지 않으면서도 투명도가 높고 환경친화적인 저융점 투명 유전체와 그의 제조방법을 제공하는 것을 목적으로 한다.Disclosed is a dielectric glass composition containing Pb and Bi, which is free from lead (Pb) or bismuth (Bi), which is a harmful heavy metal, and which has high transparency and environmentally friendly low melting point It is an object of the present invention to provide a transparent dielectric and a manufacturing method thereof.

상기 목적을 달성하기 위한 본 발명의 친환경 투명 유전체는 산화탄탈륨(Ta2O5) 5~35 중량%를 포함하고, 나머지는 산화아연(ZnO), 산화붕소(B2O3), 산회규소(SiO2), 산화나트륨(Na2O)를 포함하는 것을 특징으로 한다. 상기 산화나트륨(Na2O)은 탄산나트륨(Na2CO3)으로 대체할 수 있다. 상기 구성성분의 함량은 산화아연은 5~30 중량%, 산화붕소는 15~50 중량%, 산화규소는 3~15 중량%, 산화나트륨은 5~30중량%를 포함하는 것을 특징으로 한다. 본 발명에 따른 친환경 투명 유전체는 플라즈마 디스플레이 패널 투명 유전막에 이용되는 것을 특징으로 한다.In order to achieve the above object, the present invention provides an environmentally transparent transparent dielectric comprising 5 to 35% by weight of tantalum oxide (Ta 2 O 5 ), the balance being zinc oxide (ZnO), boron oxide (B 2 O 3 ) SiO 2 ), and sodium oxide (Na 2 O). The sodium oxide (Na 2 O) can be replaced with sodium carbonate (Na 2 CO 3 ). The content of the above components is 5 to 30% by weight of zinc oxide, 15 to 50% by weight of boron oxide, 3 to 15% by weight of silicon oxide, and 5 to 30% by weight of sodium oxide. The eco-friendly transparent dielectric material according to the present invention is used in a plasma display panel transparent dielectric film.

상기 친환경 투명 유전체의 제조방법은 산화탄탈륨(Ta2O5) 5~35 중량%와, 산화아연(ZnO), 산화붕소(B2O3), 산화규소(SiO2), 산화나트륨(Na2O)을 분말형태로 혼합하는 단계; 상기 혼합된 분말을 열처리하여 용융 및 화학반응을 시키는 단계; 상기 용융물을 냉각시킨후 분쇄과정을 거쳐 분말을 제조하는 단계를 포함하는 것을 특징 으로 한다. 상기 혼합단계에서 산화탄탈륨(Ta2O5) 5~35 중량%, 산화아연 5~30 중량%, 산화붕소 15~50 중량%, 산화규소 3~15 중량%를 포함하는 것을 특징으로 한다. 또한 상기 용융 및 화학반응을 시키는 단계는 800~1500℃의 온도범위에서 1~10시간 동안 수행하는 것을 특징으로 한다.The manufacturing method of green transparent dielectric material is tantalum oxide (Ta 2 O 5) and 5 to 35 wt%, zinc oxide (ZnO), boron oxide (B 2 O 3), silicon oxide (SiO 2), sodium oxide (Na 2 O) in powder form; Heat-treating the mixed powder to melt and chemically react; And cooling the melt and then pulverizing the powder to prepare a powder. And 5 to 35% by weight of tantalum oxide (Ta 2 O 5 ), 5 to 30% by weight of zinc oxide, 15 to 50% by weight of boron oxide, and 3 to 15% by weight of silicon oxide in the mixing step. Also, the step of performing the melting and chemical reaction is performed at a temperature of 800 to 1500 ° C for 1 to 10 hours.

상기와 같이 이루어진 본 발명에 의해 제조된 유체전 유리 조성물은 중금속인 납(Pb) 이나 비스무스(Bi)를 함유하지 않기 때문에 환경 친화적인 특징을 가지며, 가지광선 투과율이 높고, 유리화 온도가 낮고, 유전상수가 적절하여 PDP용 유전체 재료로 사용될 수 있다.Since the fluid glass composition produced by the present invention as described above does not contain lead (Pb) or bismuth (Bi) which are heavy metals, it is environmentally friendly, has a high branch light transmittance, A constant may be appropriately used as a dielectric material for a PDP.

본 발명의 친환경 투명 유전체의 성분은 산화탄탈륨, 산화아연, 산화붕소, 산화규소, 산화나트륨을 포함하는 것을 특징으로 한다. 상기 조성물은 중금속인 납이나 비스무스 성분을 함유하지 않기 때문에 환경친화적이다. 또한 종래 유연 유전체가 같는 특성에 비해 향상된 특성을 가지며, 저온소성이 가능한 특징이 있다. 상기 조성물의 유전상수는 7~18 이며 유리화 전이온도는 400~500℃이다.The component of the environmentally transparent transparent dielectric of the present invention is characterized by containing tantalum oxide, zinc oxide, boron oxide, silicon oxide, and sodium oxide. The composition is environmentally friendly because it does not contain heavy metals such as lead or bismuth. In addition, the conventional flexible dielectric has improved characteristics compared to the same characteristics, and has a characteristic that low-temperature firing can be performed. The dielectric constant of the composition is 7 to 18 and the vitrification transition temperature is 400 to 500 ° C.

본 발명에 의한 친환경 투명 유전체 조성물의 제조 방법은 다음과 같다. A method for producing an environmentally transparent transparent dielectric composition according to the present invention is as follows.

유리를 구성하고 있는 성분 분말들을 혼합하여 혼합물을 제조하는 단계와, 혼합물을 800~1400℃에서 열처리 하여 용융 및 냉각 시켜 유리를 합성하는 단계로 구분된다.Mixing the component powders constituting the glass to prepare a mixture, and heat-treating the mixture at 800 to 1400 ° C for melting and cooling to synthesize the glass.

상기 제조방법은 비용이 저렴하고 공정이 간단하여 대량생산이 가능한 장점이 있다. 본 발명에서 사용된 구성성분은 고체 산화물로서 산화탄탈륨, 산화아연, 산화붕소, 산화규소, 산화나트륨을 주원료로서 이루어짐을 특징으로 한다. 상기 산화나트륨은 탄산나트륨으로 대체될 수 있다. 상기 원료의 구성비율은 산화탄탈륨(Ta2O5)을 5~35 중량%을 포함하는 것이 바람직하다. 또한, 상기 산화아연(ZnO)은 5~30 중량%, 산화붕소(B2O3)는 15~50 중량%, 산화규소(SiO2) 3~15 중량%, 산화나트륨(Na2O) 또는 탄산나트륨(Na2CO3)은 5~30 중량%을 포함하는 것이 바람직하다. 산화탄탈륨을 5~35%으로 한정하는 이유는 5 중량% 미만의 경우 융점이 높아 투명 유전체로서의 역할을 하지 못하고 35%를 초과하는 경우 투명성을 갖지 못하는 문제점이 있기 때문이다.The manufacturing method is advantageous in that it is inexpensive and simple in process and can be mass-produced. The constituent components used in the present invention are characterized by comprising tantalum oxide, zinc oxide, boron oxide, silicon oxide, and sodium oxide as main materials as solid oxides. The sodium oxide may be replaced by sodium carbonate. The composition ratio of the raw materials preferably includes 5 to 35% by weight of tantalum oxide (Ta 2 O 5 ). The zinc oxide (ZnO) may be used in an amount of 5 to 30 wt%, boron oxide (B 2 O 3 ) may be used in an amount of 15 to 50 wt%, silicon oxide (SiO 2 ) 3 to 15 wt%, sodium oxide (Na 2 O) It is preferable that sodium carbonate (Na 2 CO 3 ) contains 5 to 30% by weight. The reason for limiting the content of tantalum oxide to 5 to 35% is that if it is less than 5% by weight, it has a high melting point and can not serve as a transparent dielectric, and if it exceeds 35%, it can not have transparency.

상기 비율로 천칭하여 원료 분말들을 혼합한다. 혼합 분말은 지르코니아 볼을 이용한 볼 밀링(ball milling) 방법으로 기계적으로 분쇄, 혼합과정을 거친다. 상기 분쇄된 혼합물은 800~1500℃의 고온 열처리 노에서 1~10시간 동안 열처리 하여 완전히 용융 및 화학반응을 시킨 용융물을 두께 5mm의 스테인리스 철판위에 부어서 냉각을 시킨다. 상기 냉각된 용융물은 판상 유리형태로써 상기 볼밀링과 동일한 방법으로 분쇄과정으로 거쳐 1~5㎛ 크기로 미세분말로 제조된다.The raw material powders are mixed by the above ratio. The mixed powder is mechanically pulverized and mixed by a ball milling method using a zirconia ball. The pulverized mixture is heat treated in a high-temperature heat treatment furnace at 800 to 1500 ° C for 1 to 10 hours to completely melt and chemically react the melted material on a stainless steel plate having a thickness of 5 mm. The cooled melt is in the form of a flaky glass and is pulverized in the same manner as in the ball milling to a fine powder having a size of 1 to 5 mu m.

이하에서 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 용이하게 실시할 수 있도록 본 발명의 실시예를 첨부된 도면을 참조하여 설명하기로 한다. 그러나, 본 발명은 여기서 설명되는 실시예들에 한정되 지 않고 다른 형태로 구체화될 수 있다. 오히려, 여기소 소개되는 실시예는 개시된 내용이 철처하고 완전해 질 수 있도록 그리고 당업자에게 본 발명의 기술적 사상이 충분히 전달될 수 있도록 제공되는 것이다. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the technical idea of the present invention. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

<실시예> TiO2-계 투명 유전체 조성물 및 그의 제조방법<Examples> TiO 2 -based transparent dielectric composition and method for manufacturing the same

산화탄탈륨(Ta2O5), 산화아연(ZnO), 산화 붕소(B2O3), 산화규소(SiO2), 산화나트륨(Na2O)를 표1과 같은 중량비로 천칭하여 혼합한다음, 혼합물을 백금 도가니에 넣고 대기중에서 1200℃까지 승온시키고 1시간을 유지한 후 급랭하였다. 제조된 조성물의 유전상수 및 유리화 온도를 표1에 나타내었다.Tantalum oxide (Ta 2 O 5 ), zinc oxide (ZnO), boron oxide (B 2 O 3 ), silicon oxide (SiO 2 ) and sodium oxide (Na 2 O) , And the mixture was placed in a platinum crucible. The mixture was heated to 1200 DEG C in the atmosphere, maintained for 1 hour, and quenched. The dielectric constants and the vitrification temperatures of the prepared compositions are shown in Table 1.

[표1][Table 1]

Figure 112007092189819-pat00001
Figure 112007092189819-pat00001

<시험예 1> 투명성 확인&Lt; Test Example 1 >

실시예2의 조성으로 제조된 유전체 유리의 사진의 사진을 도1에 도시하였다. 무색 투명한 것을 확인할 수 있었다.A photograph of a photograph of a dielectric glass made with the composition of Example 2 is shown in Fig. Colorless and transparent.

<시험예2> 결정구조&Lt; Test Example 2 >

본 발명에 의해 제조된 유전체 유리에 대해 X-선 회절 분석기와 전자현미경을 이용하여 분석한 결과 모두 비정질 구조임을 확인하였고, 실시예6에 대한 X-선 회절 분석 결과를 도2에 도시하였다. 도2에 나타낸 바와 같이 비정질 상태임을 확인할 수 있었다. X-선 회전 분석결과 테트라 헤드랄 기본 단위들이 불규칙하게 배열된 전형적인 비정질 유리의 패턴을 가지는 것을 알 수 있다.The dielectric glass prepared according to the present invention was analyzed using an X-ray diffractometer and an electron microscope, and it was confirmed that the dielectric glass was an amorphous structure. The results of X-ray diffraction analysis of Example 6 are shown in FIG. It can be confirmed that the amorphous state as shown in FIG. As a result of X-ray rotation analysis, it can be seen that the basic units of the tetrahedrals have a pattern of a typical amorphous glass irregularly arranged.

<시험예3> 유리화 온도 측정<Test Example 3> Measurement of vitrification temperature

본 발명에 의해 제조된 투명 유전체에 대해 독일 Netzch 사의 열분석 장비를 이용하여 유리화 온도를 측정하였다. 열분석 조건은 승온속도를 5℃/min, 온도범위를 20~800℃로 하여 측정하였다. 실시예3에 대한 열분석 그래프를 도3에 도시하였다. 측정결과 유리화 온도는 400~500℃로 측정되었다.The vitrification temperature of the transparent dielectric prepared according to the present invention was measured using a thermal analyzer of Netzch, Germany. The thermal analysis was performed at a heating rate of 5 ° C / min and a temperature range of 20 to 800 ° C. A thermal analysis graph for Example 3 is shown in FIG. The glass transition temperature was measured at 400 ~ 500 ℃.

<시험예4> 유전상수 측정Test Example 4 Measurement of Dielectric Constant

유전상수를 측정하기 위해 본 발명에 의제 제조된 투명 유전체를 판유리 형태로 제조한 다음 표면을 매끄럽게 연마하고 10×10×5 mm 크기로 절단하여, 양면 에 실버페이스트를 도포한 후 250℃에서 30 분간 소성하여 전극을 구성하였다. 측정된 유전상수값을 표1에 나타내었다. 측정된 유전상수 값들이 7~18의 범위로 PDP 상판 유전체에 적합함을 알 수 있었다.In order to measure the dielectric constant, the transparent dielectric prepared according to the present invention was produced in the form of a plate glass, the surface was smoothly polished, cut into a size of 10 × 10 × 5 mm, coated with silver paste on both sides, Followed by firing to form an electrode. The measured dielectric constant values are shown in Table 1. It was found that the measured dielectric constants were suitable for PDP top plate dielectric in the range of 7 ~ 18.

도1은 실시예2의 조성으로 이루어진 투명 유전체의 사진이다.1 is a photograph of a transparent dielectric made of the composition of Example 2. Fig.

도2는 실시예6의 조성으로 이루어진 투명 유전체의 X-선 회절도이다.2 is an X-ray diffraction diagram of a transparent dielectric made from the composition of Example 6;

도3은 실시예4의 조성으로 이루어진 투명 유전체의 유리화 전이온도를 나타내는 열분석 그래프이다.3 is a thermal analysis graph showing the transition temperature of vitrification of a transparent dielectric material having the composition of Example 4. Fig.

Claims (7)

산화탄탈륨(Ta2O5) 5~25 중량%, 산화아연(ZnO)은 10~20 중량%, 산화붕소(B2O3)는 30~45 중량%, 산화규소(SiO2)는 5~15 중량%, 산화나트륨은 10~30 중량%를 포함하고,5 to 25 wt% of tantalum oxide (Ta2O5), 10 to 20 wt% of zinc oxide (ZnO), 30 to 45 wt% of boron oxide (B2O3), 5 to 15 wt% of silicon oxide (SiO2) 10 to 30% by weight, 유전상수는 7.5~15.5, 유리화온도는 432~470℃ 인 것을 특징으로 하는 친환경 투명 유전체.A dielectric constant of 7.5 to 15.5, and a vitrification temperature of 432 to 470 ° C. 삭제delete 제1항에 있어서, The method according to claim 1, 플라즈마 디스플레이 패널 투명 유전막에 이용되는 것을 특징으로 하는 친환경 투명 유전체.Wherein the transparent dielectric layer is used for a plasma display panel transparent dielectric layer. 산화탄탈륨(Ta2O5) 5~25 중량%, 산화아연(ZnO)은 10~20 중량%, 산화붕소(B2O3)는 30~45 중량%, 산화규소(SiO2)는 5~15 중량%, 탄산나트륨(Na2CO3)를 포함하고,5 to 25 wt% of tantalum oxide (Ta 2 O 5 ), 10 to 20 wt% of zinc oxide (ZnO), 30 to 45 wt% of boron oxide (B 2 O 3), 5 to 15 wt% of silicon oxide (SiO 2) Sodium carbonate (Na 2 CO 3 ) 유전상수는 7.5~15.5, 유리화온도는 432~470℃ 인 것을 특징으로 하는 친환경 투명 유전체.A dielectric constant of 7.5 to 15.5, and a vitrification temperature of 432 to 470 ° C. 산화탄탈륨(Ta2O5) 5~25 중량%, 산화아연(ZnO)은 10~20 중량%, 산화붕소(B2O3)는 30~45 중량%, 산화규소(SiO2)는 5~15 중량%, 산화나트륨은 10~30 중량%을 분말형태로 혼합하는 단계;5 to 25 wt% of tantalum oxide (Ta2O5), 10 to 20 wt% of zinc oxide (ZnO), 30 to 45 wt% of boron oxide (B2O3), 5 to 15 wt% of silicon oxide (SiO2) 10 to 30% by weight in powder form; 상기 혼합된 분말을 열처리하여 용융 및 화학반응을 시켜 용융물을 생성하는 단계;Heat-treating the mixed powder to melt and chemically react to produce a melt; 상기 용융물을 냉각시킨 후 분쇄과정을 거쳐 분말을 제조하는 단계를 포함하는 것을 특징으로 하는 친환경 투명 유전체 제조방법.And cooling the melt and then pulverizing the powder to prepare an eco-friendly transparent dielectric. 삭제delete 제5항에 있어서,6. The method of claim 5, 상기 용융 및 화학반응을 시켜 용융물을 생성하는 단계는 800~1500℃의 온도범위에서 1~10시간 동안 수행하는 것을 특징으로 하는 친환경 투명 유전체 제조방법.Wherein the step of forming the melt by the melting and chemical reaction is performed at a temperature of 800 to 1500 ° C for 1 to 10 hours.
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