本文通過一種簡便且經(jīng)濟的溶膠-凝膠法研究自漂浮疏水性二氧化硅顆粒。該方法是通過發(fā)生水解和縮合反應(yīng)建立的,其中原硅酸乙酯（TEOS）和合成產(chǎn)物（十八烷基2-（（3-（三乙氧基硅烷基）丙基）氨基）乙酸酯）用作引發(fā)劑,用不同比例的TEOS:SP合成二氧化硅顆粒。在玻璃基板上以羥基-2-甲基-1-苯基-1-丙酮（1173）)為光引發(fā)劑,液體中的二氧化硅顆粒和粉末二氧化硅顆粒以不同重量百分比在聚乙二醇二丙烯酸酯中進(jìn)行光聚合（UV-365,光強為22 mW/cm 2下反應(yīng)60s）,在這個過程中,大部分二氧化硅經(jīng)歷了自浮,但有一點殘留在下面。已證實TEOS與SP的比例對該聚合物膜的疏水性,粗糙度和光澤性質(zhì)具有高度影響。已經(jīng)發(fā)現(xiàn),無論使用液體二氧化硅顆�；蛘叨趸璺勰╊w粒,1:5比例時聚合物薄膜的疏水性和粗糙度最大,光澤性最小。因此所有的測試結(jié)果都是使用液體中的二氧化硅。0.5-3 wt%的離心二氧化硅薄膜的光澤性比液體二氧化硅顆粒的光澤性高,超過該范圍直至5 wt%時,光澤度下降甚至比液體二氧化硅顆粒的光澤度更小。進(jìn)行FTIR研究以鑒定所制備材料中的各種官能團,然后分別進(jìn)行TEM和SEM以研究粒度... 

【文章來源】：北京化工大學(xué)北京市 211工程院校 教育部直屬院校

【文章頁數(shù)】：95 頁

【學(xué)位級別】：碩士

【文章目錄】：
Abstract
摘要
CHAPTER 1: LITERATURE REVIEW
    1: Introduction
        1.1: Historical circumstantial
        1.2: Hydrophobic Silica with Surface Modification
        1.3: Objectives of this work
        1.4: Background of hydrophobic silica by sol-gel process
            1.4.1: Sol-gel process for TEOS
        1.5: Structure of silica
        1.6: Manufacturing of silica
            1.6.1: Laboratory Scale and Others Methodology
            1.6.2: Back ground of hydrolysis
        1.7: Evaluation of Nano-Silica
            1.7.1: The aeration and accumulation portents
        1.8: The stuffs of silica nano-particles depend upon size
            1.8.1: The Mechanical and Thermal Properties
            1.8.2: The Physic-Chemical Properties
            1.8.3: An Optical Properties
        1.9: Photo-polymer with background
        1.10: A silica filled nanocomposite polymer
CHAPTER 2: EXPERIMENTAL TOOLS, TECHNIQUES AND CHARACTERISTIC
    2.1: Chemicals and Pre-cursors
    2.2 Experimental instruments and tools
    2.3: Characterization methods of sample
        2.3.1: Surface morphological (SEM and EDX)
        2.3.2: Fourier Transformed Infrared (FT-IR)
        2.3.3: Transmission electron microscopy (TEM)
        2.3.4: Surface Hardness Tester
        2.3.5: Glossy meter
        2.3.6: Water Contact Angle
        2.3.7: Dynamic mechanical analysis
    2.8: How hydrophobic character of a surface alters in response to different stimuli
        2.8.1: Wettability
        2.8.2: Surface Roughness
        2.8.3: By chemical modification
        2.8.4: Temperature (℃)
        2.8.5: Solvents
        2.8.6: Lights
        2.8.7: Electric Field
        2.8.8: pH
        2.8.9: Effect of Biological Molecules
CHAPTER 3: PREPARATION AND CHARACTERISTIC OF SELF-FLOATING SILICA
    3.1: Main theme of Work
    3.2: Materials and Experimental
        3.2.1: Materials
        3.2.2: Synthesis of Octadecyl 2-((3-(triethoxysilyl) propyl) Amino) Acetate (SP)
        3.2.3: Preparation of the silica particles
        3.2.4: Photo-polymerization
    3.3: Characterizations
    3.4: Results and discussions
        3.4.1: FT-IR
        3.4.2: Particle size measurement by SEM
        3.4.3: Dynamic Mechanical Analysis
        3.4.4: Surface Morphology
        3.4.5: Water Contact Angle (e)
        3.4.6: Glossy measurement
        3.4.7: Surface hardness
CONCULSIONS
REFERENCES
ACKNOWLEDGEMENTS
RESUMES
LIST OF PUBLICATIONS
附件



本文編號：3356270