發(fā)布時間：2023-10-21 16:17

　　近年來具有特異潤濕性能的超浸潤材料因其在油水分離、防油污涂料和管道抗粘附等領(lǐng)域具有重要的應(yīng)用價值而受到研究者的廣泛關(guān)注。研究發(fā)現(xiàn),超疏液表面的構(gòu)造主要包括兩個重要因素,即構(gòu)筑微納米級粗糙度和低表面自由能化合物。然而,對于超疏油表面,由于油滴的表面張力比水的表面張力(72 mN m-1)小得多,其很容易在超疏水表面上擴散。因此,制備超雙疏表面比制備超疏水表面更困難。研究者通過將特殊的微/納米粗糙結(jié)構(gòu)與低表面能碳氟化合物相結(jié)合,獲得了超稀疏材料的優(yōu)異性能,因此碳氟化合物已成為制備超雙疏材料的重要表面改性劑。在這項工作中,采用織物為基底材料,分別通過簡單噴涂、浸漬法來制備超疏水/超親油和超親水/超疏油材料。并通過FTIR和SEM對所制備樣品的化學(xué)成分和表面形態(tài)等進行了表征。本文的主要研究內(nèi)容如下:(1)選擇來源廣泛的織物為原料,通過噴涂在其表面覆蓋一層致密的超疏水涂層,該涂層主要包含環(huán)氧樹脂、聚酰胺樹脂、碳納米管(CNTs)、全氟辛酸(PFOA)。其表面接觸角為152°,滑動角為3°。此外,該涂層表現(xiàn)出良好的自清潔和油水分離性能,分離效率高達90%以上。(2)選擇蒙脫土(MMT)為原料,以全...

【文章頁數(shù)】：66 頁

【學(xué)位級別】：碩士

【文章目錄】：
摘要
abstract
Table of main symbols
1 Introduction
    1.1 Backgroung and research significance
    1.2 Theoretical study on wettability of solid surface
        1.2.1 Concept of wettability of solid surface
        1.2.2 Surface Activeness
        1.2.3 Equilibrium Forces
        1.2.4 Coherence
        1.2.5 Camera resolution
        1.2.6 Amplification
        1.2.7 Dissimilarity
        1.2.8 Lighting
        1.2.9 Focal length
        1.2.10 Analysis
        1.2.11 Baseline Starting Point
        1.2.12 Trace the drop edge
        1.2.13 Determine the gradient
        1.2.14 Calculate the contact angle
        1.2.15 Superhydrophobic mechanism model
    1.3 Super infiltration in nature
    1.4 Research progress of superhydrophobic/superoleophobic materials
        1.4.1 Preparation method of superhydrophobic and superoleophobic materials
        1.4.2 Spraying strategy
        1.4.3 Etching method
        1.4.4 Template method
        1.4.5 Other Methods
    1.5 Research and application prospect of the superhydrophobic/superoleophobic materials
    1.6 Idea and research content
        1.6.1 Idea of setting up questions
        1.6.2 Research content of the thesis mainly includes the following aspects
    1.7. Prospect of my study and superhydrophobic materials
2. Preparation of the Superhydrophobic Fabric and its Versatile Applications in Oil/WaterSeparation
    2.1 Introduction
    2.2 Experiment and characterization
        2.2.1 Materials and instruments
        2.2.2 Experiment content
        2.2.3 Performance test and characterization method of material
            (1) Determination of contact angle and slide angle
            (2) Fourier Transform Infra-Red Spectrometry (FT-IR) analysis
            (3) X-ray Photo electron Spectroscopy (XPS) analysis
            (4) Scanning electron microscope (SEM) analysis
            (5) Particle surface morphology and TEM analysis of materials
            (6) Self-cleaning performance test
    2.3 Results and Discussion
        2.3.1 Surface morphology and chemical composition of superhydrophobic fabric
        2.3.2 Adhesion test
        2.3.3 Oil/water separation test
        2.3.4 Separation efficiency test
3 Preparation and Properties of Multifunctional Superwettable Materials from MMTnanoparticles
    3.1 Introduction
        3.1.1 Materials and instruments
        3.1.2 Equipments and instruments
    3.2 Experimental contents and methods
        3.2.1 Material preparation
        3.2.2 Preparation of superoleophobicity montmorillonite coating
        3.2.3 Methods for testing and characterization of material
            (1) Determination of contact angle and slide angle
            (2) Fourier Transform Infra-Red Spectrometry analysis
            (3) X-ray Photo electron Spectroscopy analysis
            (4) Scanning electron microscope analysis
            (5) Particle surface morphology and TEM analysis of materials
            (6) Self-cleaning performance test
            (7) Preparation of oil in water emulsion
    3.3 Results and discussion
        3.3.1 Preparation of a Multifunctional Superwettable Materials with ExcellentSuperoleophobicity
        3.3.2 Hydrophilic and oil-repellent properties of coating materials
        3.3.3 Surface morphology and chemical composition of MMT nanoparticles coatin
        3.3.4 Application of modified Montmorillonite coatings in different substrates
        3.3.5 The oil-water separation of modified montmorillonite particles
4 Conclusion and Prospect
    4.1 Conclusion
    4.2 Prospects
Acknowledgement
References
Appendix Academic Achievements



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