有機-無機複合混成材料於溶膠-凝膠反應之應用

Abstract

本研究利用溶膠-凝膠反應進行兩部分之研究1.岩石補強保護以及2.聚碳酸酯（polycarbonate）與聚對苯二甲酸乙二酯材料表面保護。在第一部分岩石補強保護研究中，以3-Aminopropyl trimethoxy silane （APS）與3-Glycidyloxypropyl trimethoxy silane （GPS）、Diglycidyl ether of bisphenol A（DGEBA）、Polytetramethylene ether glycol 2000（(PTMEG 2000），合成具有多矽氧烷官能基樹脂。再利用溶膠-凝膠反應對砂石以及奈米矽片進行膠結，來達到補強與耐風化的目的。進行點荷重測試與消散耐久測試，來比較配方之補強與耐風化的效果。第二部分環氧壓克力樹脂與Isophorone diisocyanate（IPDI)，Pentaerythritol triacrylate (PETA)，成功合成了胺酯環氧壓克力樹脂。通過傅立葉變換紅外光譜（FT-IR）分析胺酯環氧壓克力樹脂。為了提高樹脂的硬度以及二氧化矽膠體粒子對樹脂相容性，二氧化矽膠體粒子與3-(trimethoxy silyl)propyl methacrylate (MSMA) 進行溶膠-凝膠反應。並以動態光散射（DLS）測量二氧化矽膠體粒子/ MSMA的粒徑。丙烯酸酯官能團通過溶膠-凝膠反應至二氧化矽球的表面，增強有機/無機界面的相容性。塗佈於PC與PET材料表面之後，光聚合後最高硬度可達到7H。材料與PC及PET的粘附力達到5B。通過熱重分析（TGA）研究固化塗層的熱性質，分解溫度（Td）達到440 ℃。

In this study, to development a series of novel materials that can protect the surface of the rock, polycarbonate and polyethylene terephthalate. In part I, silane-modified resin (epoxy-silane resin, ES) was synthesized by 3-Aminopropyl trimethoxy silane (APS), 3-Glycidyloxypropyl trimethoxy silane (GPS), diglycidyl ether of bisphenol A (DGEBA) and polytetramethylene ether glycol 2000 (PTMEG 2000) via polycondensation reaction. The Si-O-Si bond was formed between the resin and the rock via sol-gel reaction in order to strength the sandstone surface’s mechanical properties and weatherability. Furthermore, the nano silicate platelets (NSP) were also involved into the system for the purpose of introducing extra covalent bonding of the rock-based nanocomposites. Point load and Slake-durability tests were carried out to illustrate the effects of silane-introduction to the strength and weathering resistance of the rock-based nanocomposite.In part II, the multi-functional methacrylates are prepared through polycondensation by isophorone diisocynante (IPDI), pentaerythritol triacrylate (PETA) reacting with epoxy acrylate, 2,2-bis[4-(20-hydroxy-30-methacryloyloxypropoxy)phenyl]propane (Bis-GMA), the series of urethane epoxy acrylate resins are successfully synthesized. The urethane epoxy acrylate oligomer’s structure is characterized by Fourier transform infrared spectroscopy (FT-IR). In order to enhance the hardness of the resins, the colloidal silica is successfully reacted with 3-(trimethoxy silyl)propyl methacrylate (MSMA). The characteristics of the colloidal silica/MSMA are measured by means of dynamic light scattering (DLS). The acrylate functional groups are chemically bonded to the surface of the silica spheres, enhancing the compatibility of the organic/inorganic interface; the highest hardness can reach 7H, and the adhesion of the PC & PET reaches 5B. The thermal properties of the cured coating are investigated by means of thermal gravimetric analysis (TGA), with the decomposition temperature (Td) reaching up to 440 ℃.