Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-20T03:49:50.906Z Has data issue: false hasContentIssue false
  • English
  • Français

Key role of milling in the optimization of TiO2 nanoinks

Published online by Cambridge University Press:  01 June 2006

A. Sanson ,
D. Gardini ,
G. Montanari ,
C. Galassi  and
E. Roncari
A. Sanson*
Affiliation:
Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), I-48018 Faenza, Italy
D. Gardini
Affiliation:
Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), I-48018 Faenza, Italy
G. Montanari
Affiliation:
Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), I-48018 Faenza, Italy
C. Galassi
Affiliation:
Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), I-48018 Faenza, Italy
E. Roncari
Affiliation:
Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), I-48018 Faenza, Italy
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

Nanostructured films of TiO2 are becoming more and more attractive as a consequence of their improved sensing properties. Screen printing represents an important low-cost alternative for the production of high-performance devices for the automotive industry. However, to obtain films with superior properties, the composition and each step of the ink production must be carefully controlled. Milling strongly influences the rheological properties of the ink and, as a consequence, the quality of the deposited film. The as-prepared ink was homogenized in a four steps-process with a three-roll mill, and the rheological properties at each intermediate stage were measured. The results showed the dramatic effect of the milling on the flow properties of the nanoink and suggested the importance of a careful control of this step. The rheological behavior of the inks was explained using the basic idea of the transient network theory (TNT) for physically cross-linked networks of polymer solutions. Only an optimized cycle of milling can assure the necessary reproducibility of the ink properties as well as their time stability.

Keywords

NanoscaleScreen printingSensor
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 6 , June 2006 , pp. 1561 - 1569
Copyright
Copyright © Materials Research Society 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Kosacki, I., Anderson, U.H.: Nanostructured oxide thin films for gas sensors. Sens. Actuators B 48, 263 (1998).CrossRefGoogle Scholar
2.Taurino, A.M., Epifani, M., Toccoli, T., Iannotta, S., Siciliano, P.: Innovative aspects in thin film technologies for nanostructured materials in gas sensors devices. Thin Solid Films 463, 52 (2003).CrossRefGoogle Scholar
3.Kiner, U., Schierbaum, K.D., Gopel, W.: Low and high temperature TiO2 oxygen sensors. Sens. Actuators B 1, 103 (1990).CrossRefGoogle Scholar
4.Carotta, M.C., Ferrosi, M., Giudi, V., Martinelli, G.: Preparation and characterization of nanostructured titania thick films. Adv. Mater. 11, 943 (1999).3.0.CO;2-L>CrossRefGoogle Scholar
5.White, N.M., Turner, J.D.: Thick-film sensors: past, present and future. Meas. Sci. Technol. 8, 1 (1997).CrossRefGoogle Scholar
6.Trease, R.E., Dietz, R.L.: Rheology of pastes in thick-film printing. Solid State Technol. 38(1972).Google Scholar
7.Camina, N., Roffey, C.G.: Statistical interpretation of viscoelasticity. Rheol. Acta 10, 606 (1971).Google Scholar
8.Zupancic, A., Lapasin, R., Zumer, M.: Rheological characterisation of shear-thickening TiO2 suspensions in low molecular polymer solution. Prog. Org. Coat. 30, 67 (1997).CrossRefGoogle Scholar
9.Hoffman, R.L.: Discontinuous and dilatant viscosity behavior in concentrated suspensions. I: Observation of a flow instability. Trans. Soc. Rheol. 16, 155 (1972).CrossRefGoogle Scholar
10.Hoffman, R.L.: Discontinuous and dilatant viscosity behavior in concentrated suspensions. II: Theory and experimental tests. J. Colloid Interface Sci. 46, 491 (1974).CrossRefGoogle Scholar
11.Barnes, H.A.: Shear-thickening (“dilatancy”) in suspensions of nonaggregating solid particles dispersed in Newtonian liquids. J. Rheol. 33, 329 (1989).CrossRefGoogle Scholar
12.Vittadello, S.T., Biggs, S.: Shear history effects in associative thickener solutions. Macromolecules 31, 7691 (1998).CrossRefGoogle Scholar
13.Regalado, E.J., Selb, J., Landau, F.: Viscoelastic behaviour of semidiluite solutions of multisticker polymer chains. Macromolecules 32, 8580 (1999).CrossRefGoogle Scholar
14.Witten, T.A., Cohen, M.H.: Cross-linking in shear-thickening ionomers. Macromolecules 18, 1915 (1985).CrossRefGoogle Scholar
15.Annable, T., Buscall, R., Ettelaie, R.: Network formation and its consequences for the physical behaviour of associating polymer in solution. Colloid Surf. A 112, 97 (1996).CrossRefGoogle Scholar
16.Ahn, K.H., Osaki, K.: Mechanism of shear thickening investigated by a network model. J. Non-Newtonian Fluid Mech. 56, 267 (1995).CrossRefGoogle Scholar
17.Green, M.S., Tobolsky, A.V.: A new approach of the theory of relaxing polymeric media. J. Chem. Phys. 14, 80 (1946).CrossRefGoogle Scholar
18.Tanaka, F., Edwards, S.F.: Viscoelastic properties of physically cross-linked networks. Transient network theory. Macromolecules 25, 1516 (1992).CrossRefGoogle Scholar
19.Marrucci, G., Bhargava, S., Cooper, S.L.: Models of shear-thickening behavior in physically cross-linked networks. Macromolecules 26, 6483 (1993).CrossRefGoogle Scholar
20.Wang, S.Q.: Transient network theory for shear-thickening fluids and physically cross-linked systems. Macromolecules 25, 7003 (1992).CrossRefGoogle Scholar
21.Ma, X.S., Cooper, S.L.: Shear thickening in aqueous solutions of hydrocarbon end-capped poly(ethylene oxide). Macromolecules 34, 3294 (2001).CrossRefGoogle Scholar
22.Lapasin, R., Pricl, S.: Rheology of Industrial Polysaccharides, Theory and Applications, 1st ed. (Blackie Academic and Professional, Glasgow, UK, 1995).CrossRefGoogle Scholar
23.Patruyo, L.G., Muller, A.J., Saez, A.E.: Shear and extensional rheology of solutions of modified hydroxyethyl celluloses and sodium dodecyl sulphate. Polymer 43, 6481 (2002).CrossRefGoogle Scholar
24.Lund, R., Lauten, R.A., Nystrom, B., Lindman, B.: Linear and nonlinear viscoelasticity of semidilute aqueous mixtures of a nonionic cellulose derivative and ionic surfactant. Langmuir 17, 8001 (2001).CrossRefGoogle Scholar
25.Chronakis, I.S., Alexandridis, P.: Rheological properties of oppositely charged polyelectrolyte-surfactant mixtures: Effect of polymer molecular weight and surfactant architecture. Macromolecules 34, 5005 (2001).CrossRefGoogle Scholar
26.Nakano, Y.: Science and technology of polymer gels. J. Chem. Eng. Jap. 38, 605 (2005).CrossRefGoogle Scholar
27.Brinker, C.J., Scherer, G.W.: Sol-Gel Science, The Physics and Chemistry of Sol-Gel Processing 1st edition (Academic Press Limited, London, UK, 1990).Google Scholar
28.Pierre, A.C.: Introduction to Sol-Gel Processing, 2nd ed. (Kluwer Academic, Norwell, MA, 2002).Google Scholar
29.Tari, G.: Gelcasting ceramics: A review. Am. Ceram. Soc. Bull. 82, 43 (2003).Google Scholar
30.Lewis, J.A.: Colloidal processing of ceramics. J. Am. Ceram. Soc. 83, 2341 (2000).CrossRefGoogle Scholar