改質四乙氧基矽烷混合氟撥水劑物理性質之探討

本研究主要針對應用四乙氧基矽烷原料，經水解、縮合、聚合為二氧化矽微粒載體，並與正-十八烷基三乙氧基矽烷水解縮合成具有長鏈烷基之化合物。再利用傅立葉轉換紅外線光譜分析、能量散射光譜儀、掃描式電子顯微鏡等分析，驗證此化合物之二氧化矽微粒表面具有長鏈烷基結構。將此具有長鏈烷基結構化合物與不同濃度之撥水劑製備為研究用之超撥水藥劑。分別探討二氧化矽微粒載體之配置及物性測試分析，二氧化矽微粒與ODS水解縮合反應形成撥水化合物之物性測試。其結論發現，經傅立葉紅外線光譜儀(FTIR)測試，SiO2微粒與ODS水解縮合後之化合物比SiO2微粒多了3個吸收峰帶；SiO2微粒與ODS水解縮合之化合物，其熱分解速度較一般市售撥水劑為低，提高了本實驗之化合物的穩定度。

關鍵字

撥水劑；四乙氧基矽烷

並列摘要

The study adopted Tetraethoxy Silane (TEOS) as raw material. It was processed by a series of hydrolysis, condensation, and polymerization reactions to form SiO2 particulate carriers. Afterwards, it was reacted with N-octadecyltrichloxysilane (ODS) under the control of hydrolysis-condensation polymerization to form long chain alkyl polymer. The polymer compound was analyzed by FTIR, EDS (Energy Dispersive Spectrometer), SEM (Scanning Electron Microscope,) to verify the surface of SiO2 particulate carriers grafted with long chain structure of alkyl group. The long chain alkyl structure compounds were formulated with various concentrations of hydrophobic agent as the superhydrophobic agents of this study. We evaluated the performance of disposing SiO2 and the analysis of physical property. And also verified the hydrolytic condensation of SiO2 and ODS. The results showed that after hydrolytic condensation, SiO2 was added three absorbed peak. And the thermal decomposition rate of SiO2 compounds improved the stability.

並列關鍵字

Hydrophobic agent ； tetraethoxy Silane

國際替代計量

改質四乙氧基矽烷混合氟撥水劑物理性質之探討

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