Novel Siloxane-Modified Epoxy Resins as Promising Encapsulant for LEDs
| العنوان: | Novel Siloxane-Modified Epoxy Resins as Promising Encapsulant for LEDs |
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| المؤلفون: | Chih Hao Lin, Chun Hua Chen, Wha-Tzong Whang, Shu Chen Huang, Kai Chi Chen |
| المصدر: | Polymers Volume 12 Issue 1 |
| بيانات النشر: | Multidisciplinary Digital Publishing Institute, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Materials science, Polymers and Plastics, Optical transmittance, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Article, law.invention, chemistry.chemical_compound, law, Phenyl group, Composite material, siloxane-modified epoxy, Diode, encapsulant, Low stress, General Chemistry, Epoxy, 021001 nanoscience & nanotechnology, crosslinking density, sulfurization resistance, surface mounted device LEDs, 0104 chemical sciences, chemistry, Siloxane, visual_art, visual_art.visual_art_medium, 0210 nano-technology, Light-emitting diode |
| الوصف: | This study investigated a new category of transparent encapsulant materials for light-emitting diodes (LEDs). It comprised a phenyl group that contained siloxane-modified epoxy (SEP-Ph) hybridized with a cyclic tetrafunctional siloxane-modified epoxy (SEP-D4) with methylhexahydrophthalic anhydride (MHHPA) as a curing agent. The SEP-Ph/SEP-D4 = 0.5/0.5 (sample 3) and SEP-D4 (sample 4) could provide notably high optical transmittance (over 90% in the visible region), high-temperature discoloration resistance, low stress, and more crucially, noteworthy sulfurization resistance. The lumen flux retention of the SEP encapsulated surface mounted device LEDs remained between approximately 97% and 99% after a sulfurization test for 240 h. The obtained comprehensive optical, mechanical, and sulfurization resistance proved the validity and uniqueness of the present design concept with complementary physical and chemical characteristics. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2073-4360 |
| DOI: | 10.3390/polym12010021 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd104106a28c7abefcc0dbc21e102736 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....bd104106a28c7abefcc0dbc21e102736 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734360 |
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| DOI: | 10.3390/polym12010021 |