本文選題：超疏水 + 噴涂��； 參考：《中國礦業(yè)大學(xué)》2017年碩士論文

【摘要】：超疏水現(xiàn)象廣泛的存在于自然界中,如荷葉表面、鳥類的羽毛、水黽腿部等,具有防水、防污、自清潔的性能,而被應(yīng)用于汽車玻璃、光伏發(fā)電等產(chǎn)業(yè)的超疏水涂層不僅要有其本身的疏水性,還要有優(yōu)異的透光性。本文采用噴涂的方法,分別制備了SiO_2/PDMS涂層、SiO_2/硅樹脂涂層和SiO_2凝膠涂層,研究其疏水性、穩(wěn)定性和透光性,并分析水滴撞擊超疏水表面的行為變化和能量變化,得到以下結(jié)論:制備的SiO_2/PDMS涂層和SiO_2/硅樹脂復(fù)合涂層,能夠?qū)崿F(xiàn)超疏水表面,其中SiO_2/PDMS涂層和SiO_2/硅樹脂涂層的疏水性、穩(wěn)定性和透明性都受SiO_2含量的影響。兩者的超疏水涂層穩(wěn)定性和透明性都隨Si O_2含量增大而有明顯的下降,在SiO_2含量相同的情況下,SiO_2/硅樹脂涂層有較好的穩(wěn)定性,而SiO_2/PDMS涂層有較好的透明性;制備的超疏水涂層都具有很好的自清潔和抗冰凍性能。通過溶膠凝膠法制備的超疏水Si O_2涂層具有很好的透明性,但涂層的穩(wěn)定性較差。超疏水涂層中具有明顯的微納粗糙結(jié)構(gòu),納米粒子間的距離很大,儲存了大量的空氣。超疏水涂層具有很好的低粘附效果,水滴滴落到超疏水表面很容易彈起。水滴的鋪展直徑由初始高度和水滴大小決定;水滴撞擊到超疏水表面的破碎取決于水滴的初始高度h和體積V,且破碎時(shí)存在一個(gè)臨界值;水滴破碎后,破碎的小水滴帶走大量能量,使得剩下的原始水滴彈跳高度下降,甚至離不開固體表面。綜上所述,本課題通過噴涂法制備的涂層都具有超疏水性能,SiO_2/PDMS涂層和SiO_2/硅樹脂涂層穩(wěn)定性較好,透光性較差,而SiO_2凝膠涂層透光性較好,穩(wěn)定性較差,并且通過分析水滴撞擊超疏水表面的行為和能量變化,為透明超疏水涂層的具體應(yīng)用提供理論指導(dǎo)。
[Abstract]:Superhydrophobic phenomena are widely found in nature, such as lotus leaf surface, bird feathers, water strider legs and so on, with waterproof, anti-fouling, self-cleaning performance, and has been used in automotive glass, The superhydrophobic coatings in photovoltaic power generation industry should not only have their own hydrophobicity, but also have excellent transmittance. In this paper, SiO2 / PDMS coating SiO2 / SiO2 / SiO2 gel coating was prepared by spray method. The hydrophobicity, stability and transmittance of SiO2 / PDMS coating were studied, and the change of behavior and energy of water droplet impact on superhydrophobic surface was analyzed. The results are as follows: the SiOstack _ 2 / PDMS coating and Sio _ S _ 2 / silicone composite coating can achieve superhydrophobic surface. The hydrophobicity, stability and transparency of Sio _ 2 / PDMS coating and Sio _ 2 / silicone resin coating are all affected by the content of Sio _ 2. The stability and transparency of the superhydrophobic coatings decreased obviously with the increase of SiO2 content. Under the same SiO2 content, the SiO2 / silicone coatings had better stability, while the SiO2 / PDMS coatings had better transparency. The superhydrophobic coatings have good self-cleaning and anti-freezing properties. The superhydrophobic Sio _ 2 coating prepared by sol-gel method has good transparency, but the stability of the coating is poor. The superhydrophobic coating has an obvious micro-nano rough structure, and the distance between nanoparticles is very large, and a large amount of air is stored in the superhydrophobic coating. The super hydrophobic coating has a good low adhesion effect, and droplets drop onto the super hydrophobic surface and spring up easily. The spreading diameter of the droplets is determined by the initial height and the size of the droplets. The breakage of the droplets to the superhydrophobic surface depends on the initial height h and volume V of the droplets, and there is a critical value when the droplets are broken. The broken droplets take away a great deal of energy, which reduces the bouncing height of the remaining water droplets and even the solid surface. To sum up, the coatings prepared by spraying in this subject all have super hydrophobic properties, such as SiO-2 / PDMS coating and SiO2 / silicone resin coating, which have better stability and poor transmittance, while SiO2 gel coating has better transmittance and worse stability. By analyzing the behavior and energy change of water droplets impacting superhydrophobic surface, this paper provides theoretical guidance for the concrete application of transparent superhydrophobic coatings.
【學(xué)位授予單位】：中國礦業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TB306

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 張友法;余新泉;周荃卉;李康寧;;超疏水低粘著銅表面制備及其防覆冰性能[J];物理化學(xué)學(xué)報(bào);2010年05期

2 公茂剛;許小亮;楊周;劉艷松;劉玲;;Superhydrophobic surfaces via controlling the morphology of ZnO micro/nano complex structure[J];Chinese Physics B;2010年05期

3 蔣興良;;貴州電網(wǎng)冰災(zāi)事故分析及預(yù)防措施[J];電力建設(shè);2008年04期

4 鄭傲然;周明;楊加宏;;仿生超疏水表面的制備及潤濕性研究[J];功能材料;2007年11期

5 李政敏;庾振平;胡琰鋒;;輸電線路覆冰的危害及防護(hù)[J];電瓷避雷器;2006年02期

6 劉純,陸佳政,陳紅冬;湖南500kV輸電線路覆冰倒塔原因分析[J];湖南電力;2005年05期

7 馮琳,江雷;超疏水性納米界面材料的制備與研究(英文)[J];中國科學(xué)院研究生院學(xué)報(bào);2005年01期

8 李書宏,馮琳,李歡軍,翟錦,宋延林,江雷,朱道本;柱狀結(jié)構(gòu)陣列碳納米管膜的超疏水性研究[J];高等學(xué)�；瘜W(xué)學(xué)報(bào);2003年02期

9 蔣興良,張麗華;輸電線路除冰防冰技術(shù)綜述[J];高電壓技術(shù);1997年01期

相關(guān)博士學(xué)位論文 前1條

1 劉濤;金屬基體超疏水表面的制備及其海洋防腐防污功能的研究[D];中國海洋大學(xué);2009年

相關(guān)碩士學(xué)位論文 前1條

1 李楊;鋁基超疏水表面的制備及耐蝕性能研究[D];大連理工大學(xué);2012年

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