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LED灯的发射光谱测定
荧光灯和LED灯等发射可见光的光源具有特有的发射光谱。因为光波长和光量决定光的色调，所以在灯的开发过程中，测定其发射光谱对评价光源的性质非常重要。通常使用紫外可见分光光度计（UV）或荧光光谱仪（RF）测定发射光谱。使用UV 得到的光谱为包含仪器特性（仪器函数）的发射光谱，该光谱的色调与视觉感知的色调不同。如果使用岛津公司生产的具有自动仪器校正功能的荧光光谱RF-6000，则不受仪器函数的影响，可以得到精确的发射光...
http://www.polymer.cn/trading/data_info/0-682 |
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Fluorescent linear CO2-derived poly(hydroxyurethane) for cool white LED
The fluorescent properties of a linear poly(hydroxyurethane) (P1) from carbon dioxide, siloxane (Si–O–Si)-containing bisepoxide and diamine are described. P1 showed strong photoluminescence with a quantum yield of up to 23.6%, high photostability, and broad absorption and emission spectra either in bulk or solution. The flexibility and hydrophobicity of the Si–O–Si linkage in P1 were utilize...
http://www.polymer.cnt//ss/xhzhang/publicationsshow_14168.html |
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Effect of silicone resin modification on the performance of epoxy materials for LED encapsulation
Cycloaliphatic epoxy resin was modified by phenyl methyl silicone resin to investigate the influence of silicone content on the performance and reliability of epoxy packaged light-emitting diode (LED). The silicone modification of epoxy encapsulants was characterized by transform infrared (FT-IR) spectrophotometer. Differential scanning calorimetry (DSC), thermogravimetric analyses (TGA), dynami...
http://www.polymer.cnt//ss/yuyingfeng/publicationsshow_12968.html |
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氮化铝薄膜改善LED 散热性能的研究
关键字：氮化铝薄膜,导热涂层,led,散热
研究了氮化铝薄膜对LED 灯散热情况的影响，并与导热硅脂(KS609)涂层的散热效果进行了比较,结果表明：导热涂层能加强LED 的散热，氮化铝薄膜散热效果优于导热硅脂；对红、白、绿3 种颜色LED，相同条件下，散热材料对红色LED 的散热效果最好。研究结果为氮化铝薄膜应用于LED 散热系统提供了参考数据。
http://www.polymer.cn/research/dis_info6370 |
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氮化铝薄膜改善LED 散热性能的研究
关键字：氮化铝薄膜,导热涂层,led,散热
研究了氮化铝薄膜对LED 灯散热情况的影响，并与导热硅脂(KS609)涂层的散热效果进行了比较,结果表明：导热涂层能加强LED 的散热，氮化铝薄膜散热效果优于导热硅脂；对红、白、绿3 种颜色LED，相同条件下，散热材料对红色LED 的散热效果最好。研究结果为氮化铝薄膜应用于LED 散热系统提供了参考数据。
http://www.polymer.cn/research/dis_info6370 |
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Fluorescent linear CO2-derived poly(hydroxyurethane) for cool white LED
关键字：poly(hydroxyurethane)，cool white LED，
The fluorescent properties of a linear poly(hydroxyurethane) (P1) from carbon dioxide, siloxane (Si–O–Si)-containing bisepoxide and diamine are described. P1 showed strong photoluminescence with a quantum yield of up to 23.6%, high photostability, and broad absorption and emission spectra either in bulk or solution. The flexibility and hydrophobicity of the Si–O–Si linkage in P1 were utilize...
http://www.polymer.cn/research/sy_info19585 |
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高光学性能LED灌封胶硬度的提高
LED灌封胶的作用是保护芯片免受侵蚀，减缓震动，防止外力损坏等，因此，对其硬度要求越来越高[l]。目前最常用的提高硬度的方法是添加白炭黑作为增强剂[2]，但存在透光率急剧下降的缺陷，难以满足功率型LED封装的要求。本文在高光学性能的基础上总结了影响室温硫化硅橡胶硬度的三种因素，并做系统研究，合成的液体硅橡胶各项性能满足要求。
加成型液体硅橡胶的硫化机理是聚硅氧烷中的Si-CH=CH2键和Si-H键在铂催化剂的催化下...
http://www.polymer.cn/research/sy_info18397 |
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高光学性能LED灌封胶硬度的提高
LED灌封胶的作用是保护芯片免受侵蚀，减缓震动，防止外力损坏等，因此，对其硬度要求越来越高[l]。目前最常用的提高硬度的方法是添加白炭黑作为增强剂[2]，但存在透光率急剧下降的缺陷，难以满足功率型LED封装的要求。本文在高光学性能的基础上总结了影响室温硫化硅橡胶硬度的三种因素，并做系统研究，合成的液体硅橡胶各项性能满足要求。
加成型液体硅橡胶的硫化机理是聚硅氧烷中的Si-CH=CH2键和Si-H键在铂催化剂的催化下...
http://www.polymer.cn/research/dis_info18727 |
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Fluorescent linear CO2-derived poly(hydroxyurethane) for cool white LED
关键字：poly(hydroxyurethane)，cool white LED，
The fluorescent properties of a linear poly(hydroxyurethane) (P1) from carbon dioxide, siloxane (Si–O–Si)-containing bisepoxide and diamine are described. P1 showed strong photoluminescence with a quantum yield of up to 23.6%, high photostability, and broad absorption and emission spectra either in bulk or solution. The flexibility and hydrophobicity of the Si–O–Si linkage in P1 were utilize...
http://www.polymer.cn/research/sy_info19585 |
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高光学性能LED灌封胶硬度的提高
LED灌封胶的作用是保护芯片免受侵蚀，减缓震动，防止外力损坏等，因此，对其硬度要求越来越高[l]。目前最常用的提高硬度的方法是添加白炭黑作为增强剂[2]，但存在透光率急剧下降的缺陷，难以满足功率型LED封装的要求。本文在高光学性能的基础上总结了影响室温硫化硅橡胶硬度的三种因素，并做系统研究，合成的液体硅橡胶各项性能满足要求。
加成型液体硅橡胶的硫化机理是聚硅氧烷中的Si-CH=CH2键和Si-H键在铂催化剂的催化下...
http://www.polymer.cn/research/sy_info18397 |
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