有機無機混成光敏感性光學材料

Photosensitive organic-inorganic hybrid for optical materials

高宜孝(I-Hsiao Kao)

指導教授 ： 林唯芳

國立臺灣大學/工學院/材料科學與工程學研究所/碩士(2004年)

https://doi.org/10.6342/NTU.2004.10219

摘要

本實驗室已成它X成二氧化矽主鏈壓克力混成材料，首先將粒徑介於20至25nm的SiO2顆粒表面改質成壓克力基，利用MPS(3-Methacryloxypropyl Trimethoxy Silane)經水解與縮合，即接在SiO2顆粒表面，再加入壓克力單體TEGDA(Tetraethylene glycol diacrylate)，藉以調控有機無機的比例。合成樣品之氧化物含量介於10至60wt%之間，其折射率介於1.4至1.6之間，可藉調控SiO2含量改變折射率，當SiO2含量增加時，折射率會降低。此系統中之光穿透率在1310與1550nm皆大於95%，耐熱性隨著SiO2奈米粒子加入量越多，而明顯提升，當加入60wt% SiO2奈米粒子後，熱裂解溫度比純壓克力增加了近50℃，而加入SiO2顆粒量超過40wt%後，即無明顯玻璃轉化溫度(Tg)，推測其Tg>200℃。而最佳化之樣品為MPS/SiO2=0.25(莫爾比)且無機氧化物SiO2含量為40wt%，其透光率在50μm的厚度下，可高達97%以上，折射率為1.50左右。

關鍵字

光敏性 ； 光學材料 ； 紫外光照射 ； 壓克力 ； 有機無機混成

並列摘要

We have synthesized SiO2-main chain acrylate material successfully. First, the surface of SiO2 nanoparticle was modified with MPS (3-Methacryloxypropyl Trimethoxy Silane). Then TEGDA (Tetraethylene glycol diacrylate) was added to control the amount of organic-inorganic ratio(10-60wt%). The refractive index is between 1.4 and 1.6 and would be decreased with the increase of SiO2 amount. The optical transparency at 1310nm and 1550nm is above 95%. With 60wt% SiO2 amount, the thermal decomposition temperature will increase about 50℃. More than 40wt%, there is no obvious Tg below 200℃. The optimized sample is MPS/SiO2=0.25(wt ratio) and 40wt% SiO2.

並列關鍵字

acrylate ； Organic-inorganic hybrid ； UV-Curing ； optical materials ； photosensitive

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