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受限胶体液滴蒸发过程中胶体颗粒沉积过程观察

吴赛 李伟斌 石峰 蒋世春 蓝鼎 王育人

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受限胶体液滴蒸发过程中胶体颗粒沉积过程观察

吴赛, 李伟斌, 石峰, 蒋世春, 蓝鼎, 王育人

Observation of colloidal particle deposition during the confined droplet evaporation process

Wu Sai, Li Wei-Bin, Shi Feng, Jiang Shi-Chun, Lan Ding, Wang Yu-Ren
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  • 亲水玻璃基片在掩模板的保护下, 通过喷涂超疏水层, 得到了被疏水层包围的圆形亲水区域. 胶体液滴在这一区域被很好地限制, 并且液滴体积可以在较大范围内变化, 体积的变化可以改变液滴与基片的表观接触角. 通过显微观察手段原位观察了表观接触角为疏水的受限胶体液滴蒸发过程中粒子沉积行为. 在整个蒸发过程中, 受限液滴边界被钉扎在亲疏水交界处. 粒子沉积过程中, 驱动粒子的液滴内部流动会发生变化. 粒子沉积图案形成过程由三种流体行为控制, 最初, Marangoni效应占主导作用, 驱动粒子在液滴表面聚集, 随之沉积到液滴边缘; 随着蒸发进行, 当接触角变小(<60°)时, 由于边界蒸发速度更快导致的毛细补偿流使得粒子直接向边界沉积. 在干燥的最后阶段, 亲水区域内的液层变得很薄, 只有一单层粒子存在于这一薄液层中, 蒸发继续进行时, 薄液层发生失稳使得粒子迅速聚集而形成网络化图案, 由于粒子间距变小, 球间的液桥毛细力也会参与到这一聚集过程中.
    A circular silicone sheet as a masker was used to cover a glass slide, and then the super-hydrophobic coating was sprayed on the glass slide free of silicone sheet masker, thus a round hydrophilic area surrounded by a super-hydrophobic coating is obtained. The PS colloidal droplets are confined in the hydrophilic area, and the droplet volume can be changed within a large range. Variation of the droplet volume influences the initial apparent contact angle. We investigate the particle deposition behavior of the confined colloidal droplet for a hydrophobic apparent contact angle in evaporation process by using an in situ optical observation system. In the whole evaporation process the contact-line of the confined droplet is pinned at the junction between the hydrophilic area and hydrophobic area. In the particle deposition process the main driving flow is different, and the final deposition pattern is controlled by three flow behaviors. In the early stage, the main flow is the Marangoni flow, which drives the particle clusters float on the droplet surfaces, part of them accumulated at the boundaries. As the evaporation proceeds, when the apparent contact angle decreases (<60°), the evaporation flux becomes singular near the contact line, Capillary flow towards the contact inside the drop as a compensation to the solvent loss at the drop boundary, which drives the particles in the droplet to rapidly accumulate at the contact-line. In the last evaporation stage, the thickness of the film in the hydrophilic area becomes very thin, and there is only one layer of particles in this thin film, the thin liquid film instability triggers the particles in the middle area to rapidly aggregate and then form a kind of network pattern, due to the decrease of distances between the particles. Capillary force between particles also takes part in this aggregate process.
    • 基金项目: 国家自然科学基金(批准号: 11202209)和中国科学院战略性先导科技专项(A类)(批准号: XDA04020202, XDA04020406)资助的课题.
    • Funds: Project supported by the National Natural Science Foundation of China (Grant No. 11202209), and the Strategic Guide Science Special Program of Chinese Academy of Science (A) (Grant Nos. XDA04020202, XDA04020406).
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    Pham H H, Gourevich I, Oh J K, Jonkman J E, Kumacheva E 2004 Adv. Mater. 16 516

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    Velev O D, Kaler E W 2000 Adv. Mater. 12 531

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    Velev O D, Kaler E W 1999 Langmuir 15 3693

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    Luo X, Morrin A, Killard A J, Smyth M R 2006 Electroanalysis 18 319

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    Fustin C -A, Glasser G, Spiess H W, Jonas U 2003 Adv. Mater. 15 1025

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    Fan F, Stebe K J 2004 Langmuir 20 3062

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    Fustin C -A, Glasser G, Spiess H W, Jonas U 2004 Langmuir 20 9114

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    Reynolds T D, Kalpathy S K, Kumar S, Francis L F 2010 J. Colloid Interface Sci. 352 202

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    Singh G, Pillai S, Arpanaei A, Kingshott P 2011 Nanotechnology 22 225601

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    Yu Y X, Jin L 2008 J. Chem. Phys. 128 014901

    [13]

    Yu Y X, You F Q, Tang Y P, Gao G H, Li Y G 2006 J. Phys. Chem. B 110 334

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    You F Q, Yu Y X, Gao G H 2005 J. Chem. Phys. 123 114705

    [15]

    Zhong C, Chen Z Q, Yang W G, Xia H 2013 Acta. Phys. Sin. 62 214207 (in Chinese) [钟诚, 陈智全, 杨伟国, 夏辉 2013 物理学报 62 214207]

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    Yu Y X, Tian A W, Gao G H 2005 Phys. Chem. Chem. Phys. 7 2423

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    Deegan R D 2000 Phys. Rev. E 61 475

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    Deegan R D, Bakajin O, Dupont T F, Huber G, Nagel S R, Witten T A 2000 Phys. Rev. E 62 756

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    Zhang W B, Liao L G, Yu T X, Ji A L 2013 Acta Phys. Sin. 62 196102 (in Chinese) [张文彬, 廖龙光, 于同旭, 纪爱玲 2013 物理学报 62 196102]

    [21]

    Weon B M, Je J H 2013 Phys. Rev. Lett. 110 028303

    [22]

    Xia Y N, Yin Y D, Lu Y, McLellan J 2003 Adv. Funct. Mater. 13 907

    [23]

    Yin Y D, Lu Y, Gates B, Xia Y N 2001 J. Am. Chem. Soc. 123 8718

    [24]

    Hu H, Larson R G 2005 Langmuir 21 3963

    [25]

    Hu H, Larson R G 2005 Langmuir 21 3972

    [26]

    Hu H, Larson R G 2006 J. Phys. Chem. B 110 7090

    [27]

    Xu X, Luo J 2007 Appl. Phys. Lett. 91 124102

    [28]

    Uno K, Hayashi K, Hayashi T, Ito K, Kitano H 1998 Colloid. Polym. Sci. 276 810

    [29]

    Hu H, Larson R G 2002 J. Phys. Chem. B 106 1334

    [30]

    Guena G, Poulard C, Cazabat A M 2007 Colloid J. 69 1

    [31]

    Nguyen T A H, Hampton M A, Nguyen A V 2013 J. Phys. Chem. C 117 4707

    [32]

    Adachi E, Dimitro A S, Nagayama K 1995 Langmuir 11 1057

    [33]

    Bhardwaj R, Fang X, Attinger D 2009 New J. Chem. 11 075020

    [34]

    Lu K Q, Liu J X 2006 Soft Material Physics Introduction (Beijing: Peking University Press) p250 (in Chinese) [陆坤权, 刘寄星 2006 软物质物理学导论(北京: 北京大学出版社)第250页]

    [35]

    Langmuir I 1912 Phys. Rev. 12 368

    [36]

    Cai Y, Zhang Newby B 2008 J. Am. Chem. Soc. 130 6076

    [37]

    Nikolov A D, Wasan D T 2009 Ind. Eng. Chem. Res. 48 2320

    [38]

    Marín á G, Gelderblom H, Lohse D, Snoeijer J H 2011 Phys. Rev. Lett. 107 085502

    [39]

    Denkov N, Velev O, Kralchevski P, Ivanov I, Yoshimura H, Nagayama K 1992 Langmuir 8 3183

    [40]

    Kralchevsky P A, Denkov N D, Paunov V N, Velev O D, Ivanov I B, Yoshimura H, Nagayama K 1994 J. Phys-condens. Mat. 6 395

  • [1]

    Norris D J, Arlinghaus E G, Meng L, Heiny R, Scriven L 2004 Adv. Mater. 16 1393

    [2]

    Zhang J, Sun Z, Yang B 2009 Curr. Opin. Colloid Interface Sci. 14 103

    [3]

    Pham H H, Gourevich I, Oh J K, Jonkman J E, Kumacheva E 2004 Adv. Mater. 16 516

    [4]

    Velev O D, Kaler E W 2000 Adv. Mater. 12 531

    [5]

    Velev O D, Kaler E W 1999 Langmuir 15 3693

    [6]

    Luo X, Morrin A, Killard A J, Smyth M R 2006 Electroanalysis 18 319

    [7]

    Fustin C -A, Glasser G, Spiess H W, Jonas U 2003 Adv. Mater. 15 1025

    [8]

    Fan F, Stebe K J 2004 Langmuir 20 3062

    [9]

    Fustin C -A, Glasser G, Spiess H W, Jonas U 2004 Langmuir 20 9114

    [10]

    Reynolds T D, Kalpathy S K, Kumar S, Francis L F 2010 J. Colloid Interface Sci. 352 202

    [11]

    Singh G, Pillai S, Arpanaei A, Kingshott P 2011 Nanotechnology 22 225601

    [12]

    Yu Y X, Jin L 2008 J. Chem. Phys. 128 014901

    [13]

    Yu Y X, You F Q, Tang Y P, Gao G H, Li Y G 2006 J. Phys. Chem. B 110 334

    [14]

    You F Q, Yu Y X, Gao G H 2005 J. Chem. Phys. 123 114705

    [15]

    Zhong C, Chen Z Q, Yang W G, Xia H 2013 Acta. Phys. Sin. 62 214207 (in Chinese) [钟诚, 陈智全, 杨伟国, 夏辉 2013 物理学报 62 214207]

    [16]

    Yu Y X, Tian A W, Gao G H 2005 Phys. Chem. Chem. Phys. 7 2423

    [17]

    Deegan R D, Bakajin O, Dupont T F, Huber G, Nagel S R, Witten T A 1997 Nature 389 827

    [18]

    Deegan R D 2000 Phys. Rev. E 61 475

    [19]

    Deegan R D, Bakajin O, Dupont T F, Huber G, Nagel S R, Witten T A 2000 Phys. Rev. E 62 756

    [20]

    Zhang W B, Liao L G, Yu T X, Ji A L 2013 Acta Phys. Sin. 62 196102 (in Chinese) [张文彬, 廖龙光, 于同旭, 纪爱玲 2013 物理学报 62 196102]

    [21]

    Weon B M, Je J H 2013 Phys. Rev. Lett. 110 028303

    [22]

    Xia Y N, Yin Y D, Lu Y, McLellan J 2003 Adv. Funct. Mater. 13 907

    [23]

    Yin Y D, Lu Y, Gates B, Xia Y N 2001 J. Am. Chem. Soc. 123 8718

    [24]

    Hu H, Larson R G 2005 Langmuir 21 3963

    [25]

    Hu H, Larson R G 2005 Langmuir 21 3972

    [26]

    Hu H, Larson R G 2006 J. Phys. Chem. B 110 7090

    [27]

    Xu X, Luo J 2007 Appl. Phys. Lett. 91 124102

    [28]

    Uno K, Hayashi K, Hayashi T, Ito K, Kitano H 1998 Colloid. Polym. Sci. 276 810

    [29]

    Hu H, Larson R G 2002 J. Phys. Chem. B 106 1334

    [30]

    Guena G, Poulard C, Cazabat A M 2007 Colloid J. 69 1

    [31]

    Nguyen T A H, Hampton M A, Nguyen A V 2013 J. Phys. Chem. C 117 4707

    [32]

    Adachi E, Dimitro A S, Nagayama K 1995 Langmuir 11 1057

    [33]

    Bhardwaj R, Fang X, Attinger D 2009 New J. Chem. 11 075020

    [34]

    Lu K Q, Liu J X 2006 Soft Material Physics Introduction (Beijing: Peking University Press) p250 (in Chinese) [陆坤权, 刘寄星 2006 软物质物理学导论(北京: 北京大学出版社)第250页]

    [35]

    Langmuir I 1912 Phys. Rev. 12 368

    [36]

    Cai Y, Zhang Newby B 2008 J. Am. Chem. Soc. 130 6076

    [37]

    Nikolov A D, Wasan D T 2009 Ind. Eng. Chem. Res. 48 2320

    [38]

    Marín á G, Gelderblom H, Lohse D, Snoeijer J H 2011 Phys. Rev. Lett. 107 085502

    [39]

    Denkov N, Velev O, Kralchevski P, Ivanov I, Yoshimura H, Nagayama K 1992 Langmuir 8 3183

    [40]

    Kralchevsky P A, Denkov N D, Paunov V N, Velev O D, Ivanov I B, Yoshimura H, Nagayama K 1994 J. Phys-condens. Mat. 6 395

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出版历程
  • 收稿日期:  2014-11-06
  • 修回日期:  2014-12-03
  • 刊出日期:  2015-05-05

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