壓克力/二氧化矽/耦合劑的合成在塗料上之性質研究

Synthesis and characterization of Acrylate/silica/coupling of coatings

張立群(Li-Chun Chang)

指導教授 ： 程耀毅

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2008年)

摘要

Sol-gel法是形成金屬氧化物後，接著做水解及縮合步驟，有機和無機混合物成藉由Sol-gel法來導入無機物SiO2，加入耦合劑(GOTMS)並應用在塗料上。在有機無機混合物添加不同比例的SiO2來比較差異性。SiO2加入樹脂後熱性質和機械性質有明顯的提升，加入耦合劑目的來改善有機無機的鍵結。
使用傅立葉轉換紅外線光譜儀(FTIR)來鑑定化學結構；百格試驗及耐RCA荷重等測試剛性以和抗張力試驗儀來測定材料機械性質；(UV-VIS)來測定薄膜的透光性；描掃式電子顯微鏡(SEM)來觀察材料的表面型態與二氧化矽和基材間的分散性；熱重損失分析儀(TGA)和示差掃描熱量分析儀(DSC)測定材料的熱性質；X-ray(X光單晶繞射儀)鑑定材料是否有結晶性。

關鍵字

溶膠凝膠法 ； 水解步驟 ； 縮合步驟

並列摘要

Many hybrid materials has been prepared by a sol-gel process,which is the method originally used for the preparation of inorganic metal oxides under mild conditions starting from organic metal alkoxides, followed by polycondensation of the hydrolyzed intermediates.A series of Sol-gel derived organic-inorganic hybrid used as coatings consisting of organic resin and inorganic silica(SiO2) were synthesized by adding trimethoxysilan(GOTMS) as a coupling agent.Transparent organic-inorganic hybrid sol-gel coatings with different contents of silica were achieved.Silica particles were introduced into the resin to promote its thermal and mechanical properties by adding coupling agent to enhance the bonding between resin and silica.
The structure of prepared films was characterized by Fourier transform infrared (FTIR) spectrometry. Mechanical properties was examined by Adhesion test,RCA and Tensile strength.Film transparency was examined by UV-VIS. The morphology of hybrid films was observed by scanning electron microscopy (SEM),The thermal properties was analysed by Thermogravimetric analysis (TGA) and Differential Scanning Calorimetry(DSC). The crystal structure was studied by X-ray Single Crystal Diffractometer.

並列關鍵字

Sol-gel process ； hydrolysis ； polycondensation

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