含芳香環之高折射環氧樹脂之特性研究

Abstract

本研究致力於以分子結構設計方式合成具有高折射率的環氧樹脂並與各類硬化劑交聯，研究環氧樹脂材料之熱性質及光性質的影響。 傳統商業用環氧樹脂的折射率一般介於1.50~1.56，在本實驗設計中藉由環氧樹脂結構上導入大量芳香環，合成出2,2’-Dihydroxy -1,1’-dinaphthyl diglycidyl ether 並與各類硬化劑交聯，成功提高環氧樹脂硬化材料的折射率至1.688。 材料的熱性質以TGA、DSC、及TMA 研究，光學性質方面則測試其對波長為589nm 光的折射率及在可見光/紫外光區域的穿透性。研究結果顯示在環氧樹脂結構上導入大量芳香環，對提高折射率有一定的幫助，並具有良好的熱性質。而材料在可見光區也具有良好的穿透度。

Abstract

This research is devoted to the epoxy resin with high refractive index by way of molecule structural design, and study the thermal properties of the epoxy resin material. The refractive indices of commercially available epoxy resins are generally between 1.50~1.56. The goal of this study is to synthenize 2,2’-Dihydroxy-1,1’-dinaphthyl diglycidyl ether containing a large number of aromatic rings, cured by different curing agents to reach refractive index higher than 1.688 Thermal properties of these epoxy resins were also studied by TGA,DSC and TMA . Characterizations of optical properties including refractive index and ultraviolet/visible spectrum were measured at 589nm wavelength. Experimental result shows that the epoxy resin structure containing a large number of aromatic rings indicates good thermal properties and certainly helps in improving the refractive index. Also, these epoxy resin materials have good transmission in ultraviolet/visible spectrum.