KR20000072077A - high polymer of organic- dispersed electroluminescent lamp - Google Patents
high polymer of organic- dispersed electroluminescent lamp Download PDFInfo
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- KR20000072077A KR20000072077A KR1020000042325A KR20000042325A KR20000072077A KR 20000072077 A KR20000072077 A KR 20000072077A KR 1020000042325 A KR1020000042325 A KR 1020000042325A KR 20000042325 A KR20000042325 A KR 20000042325A KR 20000072077 A KR20000072077 A KR 20000072077A
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- cyanoethylacrylate
- methylmethacrylate
- allylyanide
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- electroluminescent lamp
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/42—Nitriles
- C08F220/50—Nitriles containing four or more carbon atoms
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Electroluminescent Light Sources (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
본 발명은 고유전율 유기고분자 소재에 관한 것으로, 더욱 상세하게는, 유기분산형 전계발광램프의 절연층 또는 유전층에 사용되는 소재로서 유전흡수성이 높아 발광성능이 우수하며, 수분흡수성이 낮아서 수명이 연장되며 접착력이 뛰어난 유기분산형 전계발광램프의 고유전율 유기고분자에 관한 것이다.The present invention relates to a high dielectric constant organic polymer material, and more particularly, as a material used in an insulating layer or a dielectric layer of an organic dispersion type electroluminescent lamp, having high dielectric absorption and excellent luminous performance, and having low water absorption, thus extending its lifespan. The present invention relates to a high dielectric constant organic polymer of an organic dispersion type electroluminescent lamp having excellent adhesion.
일반적으로, EL램프라고 불리어지는 전계발광램프(electroluminescent lamp)는 차량의 대시패널, 선박의 조타실의 계기판 등에 장착되어 사용된다.In general, electroluminescent lamps, called EL lamps, are used to be mounted on the dash panel of a vehicle, the instrument panel of a steering wheel of a ship, and the like.
통상 상기의 발광램프는 중간에 소정의 유전층 또는 절연층이 형성되는 바, 상기 유전층 또는 절연층은 아래와 같은 물성을 만족하여야 한다.In general, the light emitting lamp has a predetermined dielectric layer or insulating layer formed therebetween, and the dielectric layer or insulating layer must satisfy the following properties.
첫째, 유전율이 20(25℃,1kHz)정도의 큰 값을 나타내야 할 것.First, the dielectric constant should be about 20 (25 ℃, 1kHz).
둘째, 유기용제(아세톤, DMF등)에 대해 투명하게 녹을 것.Second, it should be transparent to organic solvents (acetone, DMF, etc.).
셋째, 점도가 너무 크지 않을 것- 10% 농도시 50Cps이하.Third, the viscosity should not be too high-less than 50 Cps at 10% concentration.
넷째, 발광층 및 금속전극을 양쪽에 고정시킬 수 있는 접착성을 가질 것.Fourth, the light emitting layer and the metal electrode should be adhesive to both sides.
다섯째, 흡습성이 적을 것- 상대습도 80%이상에서 평형습도 2%이하Fifth, less hygroscopicity-less than 2% equilibrium humidity less than 80% relative humidity
여섯째, 부피저항(1.0×1012Ω-cm), 파괴전압(104V/cm이상)이 높을 것.Sixth, the volume resistivity (1.0 × 10 12 Ω -cm ) and breakdown voltage (more than 10 4 V / cm) should be high.
현재 유기분산형 전계발광램프(EL)의 절연층 또는 유전층에 사용되는 고분자 소재는 시아노에틸화 탄수화물(시아노에틸 셀룰로오스, 시아노에틸 스타치 그리고 시아노에틸 풀루란)들과 불소계 고분자가 사용되고 있다.Currently, the polymer material used for the insulating layer or the dielectric layer of the organic light emitting electroluminescent lamp (EL) is made of cyanoethylated carbohydrates (cyanoethyl cellulose, cyanoethyl starch and cyanoethyl pullulan) and a fluorine-based polymer. have.
상기 시아노에틸화 탄수화물들은 위에서 열거한 대부분의 특성을 만족시키지만 근본적으로 흡습성이 커서, 제품의 내구성 및 가공성, 그리고 전기특성을 저해시킨다. 그리고 불소계 고분자는 흡습성은 낮으며 접착력과 유전율이 낮은 단점이 있다.The cyanoethylated carbohydrates satisfy most of the properties listed above, but are essentially hygroscopic, impairing the durability, processability, and electrical properties of the product. In addition, the fluorine-based polymer has a disadvantage of low hygroscopicity and low adhesion and dielectric constant.
따라서, 본 발명은 상기한 문제점을 해결하기 위해 안출된 것으로, 유기분산형 전계발광램프의 절연층 또는 유전층에 사용되어 유전특성이 향상되고, 수분에 대한 내성이 뛰어나며, 접착력이 뛰어난 유기분산형 전계발광램프의 고유전율 유기고분자를 제공하는 것을 목적으로 한다.Accordingly, the present invention has been made to solve the above problems, it is used in the insulating layer or dielectric layer of the organic light emitting electroluminescent lamp to improve the dielectric properties, excellent resistance to moisture, excellent organic adhesion type electric field An object of the present invention is to provide a high dielectric constant organic polymer of a light emitting lamp.
그리고 제조비용이 저렴하고 유연성이 양호한 유기분산형 전계발광램프의 고유전율 유기고분자를 제공하는 것을 또 다른 목적으로 한다.Another object of the present invention is to provide a high dielectric constant organic polymer of an organic dispersion type electroluminescent lamp having low manufacturing cost and good flexibility.
도1 - 본 발명에 따른 유기분산형 전계발광램프의 고유전율 유기고분자의 유전율 특성을 도시한 도.1 is a diagram showing the dielectric constant characteristics of high dielectric constant organic polymer of an organic dispersion type electroluminescent lamp according to the present invention.
도2 - 본 발명에 따른 유기분산형 전계발광램프의 고유전율 유기고분자의 전기적인 특성을 도시한 도.2 is a diagram showing the electrical characteristics of the high dielectric constant organic polymer of the organic dispersion type electroluminescent lamp according to the present invention.
도3 - 유기분산형 전계발광램프의 고유전율 유기고분자의 DSC 스펙트럼을 도시한 도.Fig. 3 shows the DSC spectrum of the high dielectric constant organic polymer of the organic dispersion type electroluminescent lamp.
도4 - 유기분산형 전계발광램프의 고유전율 유기고분자의 수분 안정성을 도시한 도.4 is a diagram showing the water stability of the high dielectric constant organic polymer of the organic dispersion type electroluminescent lamp.
상기한 목적을 달성하기 위한 본 발명은, 2-cyanoethylacrylate, allylyanide 및 methylmethacrylate의 삼원공중합체로 만들어지는 유기분산형 전계발광램프의 고유전율 유기고분자를 기술적 요지로 한다.The present invention for achieving the above object, the high dielectric constant organic polymer of the organic dispersion type electroluminescent lamp made of a terpolymer of 2-cyanoethylacrylate, allylyanide and methylmethacrylate.
여기서, 상기 2-cyanoethylacrylate, allylyanide 및 methylmethacrylate의 구성 성분비는 2:1:1의 비율로 합성되는 것이 바람직하다.Here, the constituent ratio of 2-cyanoethylacrylate, allylyanide and methylmethacrylate is preferably synthesized in a ratio of 2: 1: 1.
그리고, 상기 2-cyanoethylacrylate, allylyanide 및 methylmethacrylate의 삼원공중합체가 유기분산형 전계발광램프의 절연층 또는 유전층을 형성하는 것이 바람직하다.In addition, it is preferable that the terpolymer of 2-cyanoethylacrylate, allylyanide and methylmethacrylate form an insulating layer or a dielectric layer of an organic dispersion type electroluminescent lamp.
또한 , 상기 절연층 또는 유전층은 필름형상으로 형성되는 것이 바람직하다. 이에 따라, 유기분산형 전계발광램프의 유전특성이 향상되고 수분에 대한 내성이 뛰어나며, 접착력 및 유연성이 양호함과 동시에 가격이 저렴하다는 이점이 있다.In addition, the insulating layer or the dielectric layer is preferably formed in a film shape. Accordingly, there is an advantage in that the dielectric properties of the organic light emitting electroluminescent lamp are improved, the resistance to moisture is excellent, the adhesion and flexibility are good, and the price is low.
이하 첨부된 도면을 참조로 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
유기분산형 전계발광램프의 절연층 또는 유전층은 고유전율 고분자물질로 만들어져 절연성질을 띠게 되며, 상기 고유전율 고분자물질은 2-cyanoethylacrylate, allylyanide 및 methylmethacrylate의 삼원공중합체(이하 "CAM20"이라 칭한다.)로 만들어진다. 그리고 상기 "CAM20"은 접착력이 양호하고 유전율은 높으면서 흡습성이 낮다는 것이 실험적으로 입증된다.The insulating layer or the dielectric layer of the organic dispersion type electroluminescent lamp is made of high dielectric constant polymer material to have insulating properties. Is made with. And the "CAM20" is experimentally proved to have good adhesion, high dielectric constant and low hygroscopicity.
흡습성과 유전율은 일반적으로 비례관계를 갖는다. 따라서 유전율을 높이면서도 흡습성을 낮추기 위해서는 하나의 작용기로는 만족시킬 수 없으며, 화학 구조적으로 서로 보완 작용을 할 수 있는 두가지 이상의 작용기를 도입하여야 한다. 즉, 강한 소수성기을 나타내는 작용기와 높은 유전율을 나타내는 작용기를 필요로 한다. 기존의 소재에서는 일반적으로 탄수화물을 반복단위로 하는 물질을 사용하기 때문에 수분에 대한 친수성이 매우 크다. 이에 본 발명에서는 탄수화물이 아닌 acrylate계통의 물질을 사용하여 고분자를 합성하여 유기분산형 전계발광램프의 절연층 또는 유전층으로 사용하기 위해 이들의 물성을 조사하였다.Hygroscopicity and permittivity are generally proportional. Therefore, in order to increase the dielectric constant and lower the hygroscopicity, one functional group cannot be satisfied, and two or more functional groups that can complement each other in chemical structure must be introduced. That is, a functional group showing a strong hydrophobic group and a high dielectric constant are required. Conventional materials generally use carbohydrate repeating materials, so they are very hydrophilic. Accordingly, in the present invention, polymers were synthesized using acrylate-based materials, not carbohydrates, and their properties were investigated for use as an insulating layer or a dielectric layer of an organic light emitting electroluminescent lamp.
EL용 고유전율 유기고분자인 CAM20(2-cyanoethylacrylate, allylyanide 및 methylmethacrylate의 삼원공중합체)의 구성성분 중 2-cyanoethylacrylate와 allylyanide는 유전율이 큰 시아노기를 가지고 있으며, methylmethacrylate는 접착력을 증가시키기 위해 사용되었다. 여기서 2-cyanoethylacrylate:allylyanide: methylmethacrylate의 비율이 2:1:1일 때 EL에 가장 적합한 물성을 나타내었다.Among the constituents of CAM20 (terpolymers of 2-cyanoethylacrylate, allylyanide and methylmethacrylate), 2-cyanoethylacrylate and allylyanide have high dielectric constant cyano groups and methylmethacrylate was used to increase adhesion. Here, when the ratio of 2-cyanoethylacrylate: allylyanide: methylmethacrylate is 2: 1: 1, it showed the most suitable physical properties for EL.
다음은 몇가지 CAM20의 합성과정을 나타낸 것이다.The following shows the synthesis of some CAM20s.
< 제1실시예 >First Embodiment
1. 100ml 플라스크에 AIBN (Azobisisobutyronitrile)을 0.16g 첨가한다.1.Add 0.16 g of AIBN (Azobisisobutyronitrile) to a 100 ml flask.
2. 여기에 Allylcyanide 4.7ml, Methylmethacrylate (MMA) 8ml 그리고 2-Cyanoethylacrylate 9.5ml를 첨가한다.2. Add 4.7 ml of Allylcyanide, 8 ml of Methylmethacrylate (MMA) and 9.5 ml of 2-Cyanoethylacrylate.
3. Benzene 10ml를 이 플라스크에 첨가한다.3. Add 10 ml Benzene to this flask.
4. 70℃에서 반응시킨다.4. React at 70 ° C.
위의 합성은 2-cyanoethylacrylate:allylyanide: methylmethacrylate의 비율이 1:1:1인 경우로 상기 합성물을 이용하여 필름을 제작하는 경우에 필름이 깨지는 현상이 발생하였다.In the above synthesis, when the ratio of 2-cyanoethylacrylate: allylyanide: methylmethacrylate is 1: 1: 1, the film is broken when a film is manufactured using the composite.
< 제2실시예 >Second Embodiment
1. 100ml 플라스크에 AIBN (Azobisisobutyronitrile)을 0.16g 첨가한다.1.Add 0.16 g of AIBN (Azobisisobutyronitrile) to a 100 ml flask.
2. 여기에 Allylcyanide 4.7ml, Methylmethacrylate (MMA) 8ml 그리고 2-Cyanoethylacrylate 19ml를 첨가한다.2. Add 4.7 ml of Allylcyanide, 8 ml of Methylmethacrylate (MMA) and 19 ml of 2-Cyanoethylacrylate.
3. Benzene 10ml를 이 플라스크에 첨가한다.3. Add 10 ml Benzene to this flask.
4. 70℃에서 반응시킨다.4. React at 70 ° C.
위의 합성은 2-cyanoethylacrylate:allylyanide: methylmethacrylate의 비율이 2:1:1인 경우로 상기의 과정 중에서 반응온도는 70℃에서의 반응이 가장 이상적 이나, 20℃∼80℃에서 반응시키더라도 물성에 커다란 차이를 보이지는 않았다. 그리고 상기 70℃에서의 반응시간은 약4시간 정도 지속시켰으며, 상기의 방법으로 제작된 몇개의 CAM20에 대한 주파수 변화에 의한 유전율 측정결과 도1에서와 같이 동일한 트랜드를 나타내었다. 또한 몇개의 시료에 대한 주파수에 따른 유전분산과 흡수율 결과도 도2에서와 같이 유사한 트랜드를 나타내었다. 즉, 본 발명에 따른 고유전율 유기고분자 물질인 CAM20은 시차를 두고 제작하여 실험을 하여도 동일한 결과가 반복적으로 재현됨이 확인되었다.In the above synthesis, the ratio of 2-cyanoethylacrylate: allylyanide: methylmethacrylate is 2: 1: 1.In the above process, the reaction temperature is ideal for the reaction at 70 ° C, even if reacted at 20 ° C to 80 ° C. There was no big difference. In addition, the reaction time at 70 ° C. was maintained for about 4 hours. As a result of permittivity measurement by frequency change of several CAM20s produced by the above method, the same trend was shown in FIG. 1. In addition, the dielectric dispersion and absorption rates according to the frequencies of several samples also showed similar trends as shown in FIG. That is, it was confirmed that CAM20, which is a high dielectric constant organic polymer material according to the present invention, was repeatedly produced even when experiments were made with a time difference.
또한 도3은 시료의 열적안정성을 알아보기 위한 DSC 측정 데이타로 그림에서 보듯이 본 발명에 따른 시료는 상온 이상에서 부터 약250℃까지는 열적으로 안정성을 유지하는 것으로 나타났다.In addition, Figure 3 is a DSC measurement data to determine the thermal stability of the sample, as shown in the figure, the sample according to the present invention was found to maintain the thermal stability from above room temperature to about 250 ℃.
도4는 수분 존재하에서의 휘도실험결과로써, 도시된 바와 같이, 본 발명에 따른 CAM20의 수분흡수율이 기존 외국제품의 수분흡수율보다 작음을 알 수 있다.Figure 4 shows the results of the luminance test in the presence of water, as shown, it can be seen that the water absorption rate of the CAM20 according to the present invention is smaller than the water absorption rate of the existing foreign products.
< 제3실시예 >Third Embodiment
1. 100ml 플라스크에 AIBN (Azobisisobutyronitrile)을 0.20g 첨가한다.1.0.20 g of AIBN (Azobisisobutyronitrile) is added to a 100 ml flask.
2. 여기에 Allylcyanide 4.7ml, Methylmethacrylate (MMA) 8ml 그리고 2-Cyanoethylacrylate 27.5ml를 첨가한다.2. Add 4.7 ml of Allylcyanide, 8 ml of Methylmethacrylate (MMA) and 27.5 ml of 2-Cyanoethylacrylate.
3. Benzene 10ml를 이 플라스크에 첨가한다.3. Add 10 ml Benzene to this flask.
4. 70℃에서 반응시킨다.4. React at 70 ° C.
위의 합성은 2-cyanoethylacrylate:allylyanide: methylmethacrylate의 비율이 3:1:1인 경우로 상기 합성물은 EL용 절연층 또는 유전층에 사용하기에는 적당하지 않은 물성을 나타내었다.In the above synthesis, when the ratio of 2-cyanoethylacrylate: allylyanide: methylmethacrylate is 3: 1: 1, the compound exhibited an unsuitable physical property for use in an insulating or dielectric layer for EL.
위에서 살펴본 바와 같이 2-cyanoethylacrylate:allylyanide: methylmethacrylate의 비율이 1:1:1인 경우와 3:1:1인 경우는 EL용 고유전율 유기고분자 물질로는 적당하지 않았으며, 2-cyanoethylacrylate:allylyanide: methylmethacrylate의 비율이 2:1:1인 경우가 유전특성 및 수분에 대한 내성이 우수하고, 접착력 또한 우수한 것으로 나타내었다.As described above, when the ratio of 2-cyanoethylacrylate: allylyanide: methylmethacrylate is 1: 1: 1 and 3: 1: 1, it is not suitable as a high dielectric constant organic polymer material for EL, and 2-cyanoethylacrylate: allylyanide: When the ratio of methylmethacrylate is 2: 1: 1, the dielectric properties and water resistance were excellent, and the adhesion was also excellent.
상기한 바와 같이, 본 발명에 따른 유기분산형 전계발광램프용 고유전율 유기고분자는 유전특성이 향상됨과 동시에 수분에 대한 내성이 뛰어나며 접착력이 양호하다는 효과가 있다.As described above, the high dielectric constant organic polymer for organic dispersion type electroluminescent lamp according to the present invention has the effect of improving the dielectric properties and having excellent resistance to moisture and good adhesion.
또한 가격이 저렴하여 경제적이고 필름으로 제작하는 경우 유연성이 양호하다는 효과가 또한 있다.In addition, there is also an effect that the price is low and economical and the flexibility is good when manufacturing into a film.
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60203614A (en) * | 1984-03-28 | 1985-10-15 | Japan Synthetic Rubber Co Ltd | Copolymer rubber and production thereof |
JPH03273071A (en) * | 1990-03-20 | 1991-12-04 | Sanyo Chem Ind Ltd | Dispersant for inorganic pigment |
JPH04198389A (en) * | 1990-11-28 | 1992-07-17 | Alps Electric Co Ltd | Electro-luminescent element of thick film |
JPH06336506A (en) * | 1993-05-28 | 1994-12-06 | Sunstar Eng Inc | Highly dielectric ultraviolet-curable composition and its use |
-
2000
- 2000-07-24 KR KR1020000042325A patent/KR20000072077A/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60203614A (en) * | 1984-03-28 | 1985-10-15 | Japan Synthetic Rubber Co Ltd | Copolymer rubber and production thereof |
JPH03273071A (en) * | 1990-03-20 | 1991-12-04 | Sanyo Chem Ind Ltd | Dispersant for inorganic pigment |
JPH04198389A (en) * | 1990-11-28 | 1992-07-17 | Alps Electric Co Ltd | Electro-luminescent element of thick film |
JPH06336506A (en) * | 1993-05-28 | 1994-12-06 | Sunstar Eng Inc | Highly dielectric ultraviolet-curable composition and its use |
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