| LED封装用透明环氧树脂的改性 |
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| 引用本文： | 李元庆,杨洋,付绍云.LED封装用透明环氧树脂的改性[J].合成树脂及塑料,2007,24(3):13-16. |
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| 作者姓名： | 李元庆 杨洋 付绍云 |
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| 作者单位： | 1. 中国科学院理化技术研究所,北京,100080;中国科学院研究生院,北京,100039
2. 中国科学院理化技术研究所,北京,100080 |
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| 基金项目： | 中国科学院北京物质科学研究基地项目 |
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| 摘 要： | 选用不同种类的光稳定剂对发光二极管(LED)封装用透明环氧树脂进行改性,研究了光稳定剂对环氧树脂透光率和耐紫外线老化性能的影响。所选用的光稳定剂与环氧树脂都具有良好的相容性.采用苯并三唑类光稳定剂UV-329改性环氧树脂和受阻胺类光稳定剂HS-508改性环氧树脂封装的LED比采用普通环氧树脂EP-400封装的LED寿命分别提高59%和73%。HS-508与UV-329共同使用具有协同作用,采用最优条件改性环氧树脂封装的LED的寿命比用EP-400封装的LED提高了170%。
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| 关 键 词： | 环氧树脂 发光二极管 光稳定剂 光老化 |
| 文章编号： | 1002-1396(2007)03-0013-04 |
| 修稿时间： | 2006-12-26 |
Study on the photo-stabilizers modified LED encapsulation epoxy resins |
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| Li Yuanqing,Yang Yang,Fu Shaoyun.Study on the photo-stabilizers modified LED encapsulation epoxy resins[J].China Synthetic Resin and Plastics,2007,24(3):13-16. |
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| Authors: | Li Yuanqing Yang Yang Fu Shaoyun |
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| Affiliation: | 1. Technical Institute of Physics and Chemistry,Chinese Academy of Science, Beijing 100080, China; 2. Graduate School of the Chinese Academy of Science, Beijing 100039, China |
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| Abstract: | The effects of UV photo-stabilizers on the optical transmittance and photo-stabilization properties of epoxy resins used for encapsulation of light emitting diodes (LED) lamps have been investigated.The results indicated that all the selected photo-stabilizers have excellent compatibility with epoxy.It was shown that the lifetime of LED encapsulated with EP-5 and EP-2 has been improved by 59% and 73%,respectively. Moreover,the simultaneous usage of HALS with UV-absorbers showed a synergetic effect on the lifetime of LED lamps and the lifetime of LED encapsulated with EP-9 has been improved by 170% compared with the LED lamp encapsulated with EP-400. |
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| Keywords: | epoxy lightemitting diodes photo-stabilizer UV-stabilization |
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