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We investigate the rheological properties of silica nanoparticle monolayers at the air-water interface by using two orthogonal Wilhelmy plates in the Langmuir trough and Brewster angle microscopy (BAM). Remarkable anisotropic effect of surface pressure is observed when the layers are fully covered by particles. The pressure anisotropy is the most prominent for the layer of particles with 34%SiOH on their surface. The elastic compression and the shear moduli present the maxima at intermediate hydrophobicity. The dependence of rheological properties on particle hydrophobicity is closely related to the foamability and the stability of the foams made from these particle dispersions. A shape memory effect is observed in the condensed layer of the most hydrophobic particle(20%SiOH), which may result from the irreversible organization of particles and the particle arrangement driven by the inner stress stored in the layer.
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Keywords:
- nanoparticle /
- monolayer /
- surface pressure /
- rheology
[1] Huang J X, Kim F, Tao A R, Conner S, Yang P D 2005 Nature Materials 4 896
[2] Lin B J, Chen L J 2007 J. Chem. Phys. 126 034706
[3] Binks B P 2002 Curr. Opin. Colloid Interface Sci. 7 21
[4] Reynaert S, Moldenaers P, Vermant J 2007 Phys. Chem. Chem. Phys. 9 6463
[5] Pickering S U 1907 J. Chem. Soc. 91 2001
[6] Fujii S, Ryan A J, Armes S P 2006 J. Am. Chem. Soc. 128 7882
[7] Gonzenbach U T, Studart A R, Tervoort E, Gauckler L J 2006 Angew. Chem. Int. Ed. 45 3526
[8] Binks B P, Horozov T S 2005 Angew. Chem. Int. Ed. 44 3722
[9] Cervantes-Martinez A, Rio E, Delon G, Saint-Jalmes A, Langevin D, Binks B P 2008 Soft Matter 4 1531
[10] Horozov T S 2008 Curr. Opin. Colloid Interface Sci. 13 134
[11] Vella D, Aussillous P, Mahadevan L 2004 Europhys. Lett. 68 212
[12] Cicuta P, Stancik E J, Fuller G G, 2003 Phys. Rew. Lett. 90 236101
[13] Jiang L, Zhao F, Tang J A, Zhu H, Li J R, Li B B 2001 Chin. Sci. Bull. 46 737
[14] Wyss H M, Miyazaki K 2007 Phys. Rew. Lett. 98 238303
[15] Xu S J, Men S Q, Wang B, Lu K Q 2000 Acta Phys. Sin. 49 2176 (in Chinese)[许素娟、门守强、王 彪、陆坤权 2000 49 2176 ]
[16] Gibbs J W 1961 Collected Works vol. 1(Dover Publishing Co. Inc, New York) p. 301
[17] Gaines G L 1966 Insoluble monolayers at liquid-gas surfaces, (John Wiley, New York)
[18] Hilles H, Maestro A, Monroy F, Ortega F, Rubio R G 2007 J. Phys. Chem. 126 124904
[19] Georgieva D, Schmitt V, Leal-Calderon F, Langevin D 2009 Langmuir 25 5565
[20] Georgieva D, Cagna A, Langevin D 2009 Soft Matter 5 2063
[21] Erni P, Fischer P, Windhab E J, Kusnezov V, Stettin H, Läuger J 2003 Rev. Sci. Instr. 74 4916
[22] Petkov J T, Gurkov T D 2000 Langmuir 16 3703
[23] Ferenczi T A M, Cicuta P 2005 J. Phys.: Condens. Matter 17 S3445
[24] Safouane M, Langevin D, Binks B P 2007 Langmuir 23 11546
[25] Zang D Y, Rio E, Langevin D, Wei B, Binks B P 2010 Eur. Phys. J. E 31 125
[26] Zang D Y, Stocco A, Langevin D, Wei B, Binks B P 2009 Phys. Chem. Chem. Phys. 11 9522
[27] Kostakis T, Ettelaie R, Murray B S 2006 Langmuir 22 1273
[28] Wijmans C M, Dickinson E 1998 Langmuir 14 7278
[29] Zang D Y, Langevin D, Binks B P, Wei B 2010 Phys. Rev. E 81 011604
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[1] Huang J X, Kim F, Tao A R, Conner S, Yang P D 2005 Nature Materials 4 896
[2] Lin B J, Chen L J 2007 J. Chem. Phys. 126 034706
[3] Binks B P 2002 Curr. Opin. Colloid Interface Sci. 7 21
[4] Reynaert S, Moldenaers P, Vermant J 2007 Phys. Chem. Chem. Phys. 9 6463
[5] Pickering S U 1907 J. Chem. Soc. 91 2001
[6] Fujii S, Ryan A J, Armes S P 2006 J. Am. Chem. Soc. 128 7882
[7] Gonzenbach U T, Studart A R, Tervoort E, Gauckler L J 2006 Angew. Chem. Int. Ed. 45 3526
[8] Binks B P, Horozov T S 2005 Angew. Chem. Int. Ed. 44 3722
[9] Cervantes-Martinez A, Rio E, Delon G, Saint-Jalmes A, Langevin D, Binks B P 2008 Soft Matter 4 1531
[10] Horozov T S 2008 Curr. Opin. Colloid Interface Sci. 13 134
[11] Vella D, Aussillous P, Mahadevan L 2004 Europhys. Lett. 68 212
[12] Cicuta P, Stancik E J, Fuller G G, 2003 Phys. Rew. Lett. 90 236101
[13] Jiang L, Zhao F, Tang J A, Zhu H, Li J R, Li B B 2001 Chin. Sci. Bull. 46 737
[14] Wyss H M, Miyazaki K 2007 Phys. Rew. Lett. 98 238303
[15] Xu S J, Men S Q, Wang B, Lu K Q 2000 Acta Phys. Sin. 49 2176 (in Chinese)[许素娟、门守强、王 彪、陆坤权 2000 49 2176 ]
[16] Gibbs J W 1961 Collected Works vol. 1(Dover Publishing Co. Inc, New York) p. 301
[17] Gaines G L 1966 Insoluble monolayers at liquid-gas surfaces, (John Wiley, New York)
[18] Hilles H, Maestro A, Monroy F, Ortega F, Rubio R G 2007 J. Phys. Chem. 126 124904
[19] Georgieva D, Schmitt V, Leal-Calderon F, Langevin D 2009 Langmuir 25 5565
[20] Georgieva D, Cagna A, Langevin D 2009 Soft Matter 5 2063
[21] Erni P, Fischer P, Windhab E J, Kusnezov V, Stettin H, Läuger J 2003 Rev. Sci. Instr. 74 4916
[22] Petkov J T, Gurkov T D 2000 Langmuir 16 3703
[23] Ferenczi T A M, Cicuta P 2005 J. Phys.: Condens. Matter 17 S3445
[24] Safouane M, Langevin D, Binks B P 2007 Langmuir 23 11546
[25] Zang D Y, Rio E, Langevin D, Wei B, Binks B P 2010 Eur. Phys. J. E 31 125
[26] Zang D Y, Stocco A, Langevin D, Wei B, Binks B P 2009 Phys. Chem. Chem. Phys. 11 9522
[27] Kostakis T, Ettelaie R, Murray B S 2006 Langmuir 22 1273
[28] Wijmans C M, Dickinson E 1998 Langmuir 14 7278
[29] Zang D Y, Langevin D, Binks B P, Wei B 2010 Phys. Rev. E 81 011604
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