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We propose a novel approach for the study of rheological properties of silica nanoparticle monolayers at the air-water interface. The layers are deformed by indenting and raising a titanium cone. The surface pressure variations in these down-up cycles are recorded and analysed. The oscillation amplitude of surface pressure d results from the tensile deformation of the particle layer. d and the relaxation time are strongly dependent on the adsorption energy of particles at the interface, thereby significantly changing the particle hydrophobicity. The results provide a deeper insight into the viscoelastic behaviour of particle layer, suggesting that the proposed method can be utilized for the rheological study of the layers of this kind.
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Keywords:
- nanoparticle /
- monolayer /
- surface pressure /
- rheology
[1] Binks B P 2007Phys. Chem. Chem. Phys. 9 6298
[2] Herzig E M, White K A, Schofield A B, Poon W C K, Clegg P S 2007 Nat. Mater. 6 966
[3] Sanz E, White K A, Clegg P S, Cates M E 2009 Phys. Rev. Lett. 103 255502
[4] Lin B J, Chen L J 2007 J. Chem. Phys. 126 034706
[5] Stankiewicz J, Cabrerizo V′?lchez M A, Alvarez R H 1993 Phys. Rev. E 47 2663
[6] Vella D, Aussillous P, Mahadevan L 2004 Europhys. Lett. 68 212
[7] Zang D Y, Rio E, Langevin D, Wei B, Binks B P 2010 Eur. Phys. J. E 31 125
[8] Zang D Y, Rio E, Delon G, Langevin D, Wei. B, Binks B P 2011 Mol. Phys. 109 1057
[9] Zang D Y, Zhang Y J, Langevin D 2011 Acta Phys. Sin. 60 076801 (in Chinese) [臧渡洋, 张永建, Langevin Dominique 2011 物理学报 60 076801]
[10] Madivala B, Fransaer J, Vermant J 2009 Langmuir 25 2718
[11] Safouane M, Langevin D, Binks B P 2007 Langmuir 23 11546
[12] Zang D Y, Langevin D, Binks B P, Wei B 2010 Phys. Rev. E 81 011604
[13] Grzelczak M, Vermant J, Furst E M, Liz-Marzán L M 2010 ACS Nano 4 3591
[14] Oettel M, Dietrich S 2008 Langmuir 24 1425
[15] Gaines G L 1966 Insoluble monolayers at liquid-gas surfaces, John Wiley, New York
[16] Connors K 1990 Chemical Kinetics, VCH Publishers
[17] Tschogel N W 1989 The phenomenological Theory of Linear Viscoelastic Behaviour (Springer-Verlag, Berlin)
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[1] Binks B P 2007Phys. Chem. Chem. Phys. 9 6298
[2] Herzig E M, White K A, Schofield A B, Poon W C K, Clegg P S 2007 Nat. Mater. 6 966
[3] Sanz E, White K A, Clegg P S, Cates M E 2009 Phys. Rev. Lett. 103 255502
[4] Lin B J, Chen L J 2007 J. Chem. Phys. 126 034706
[5] Stankiewicz J, Cabrerizo V′?lchez M A, Alvarez R H 1993 Phys. Rev. E 47 2663
[6] Vella D, Aussillous P, Mahadevan L 2004 Europhys. Lett. 68 212
[7] Zang D Y, Rio E, Langevin D, Wei B, Binks B P 2010 Eur. Phys. J. E 31 125
[8] Zang D Y, Rio E, Delon G, Langevin D, Wei. B, Binks B P 2011 Mol. Phys. 109 1057
[9] Zang D Y, Zhang Y J, Langevin D 2011 Acta Phys. Sin. 60 076801 (in Chinese) [臧渡洋, 张永建, Langevin Dominique 2011 物理学报 60 076801]
[10] Madivala B, Fransaer J, Vermant J 2009 Langmuir 25 2718
[11] Safouane M, Langevin D, Binks B P 2007 Langmuir 23 11546
[12] Zang D Y, Langevin D, Binks B P, Wei B 2010 Phys. Rev. E 81 011604
[13] Grzelczak M, Vermant J, Furst E M, Liz-Marzán L M 2010 ACS Nano 4 3591
[14] Oettel M, Dietrich S 2008 Langmuir 24 1425
[15] Gaines G L 1966 Insoluble monolayers at liquid-gas surfaces, John Wiley, New York
[16] Connors K 1990 Chemical Kinetics, VCH Publishers
[17] Tschogel N W 1989 The phenomenological Theory of Linear Viscoelastic Behaviour (Springer-Verlag, Berlin)
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