Effect of BaTiO3 Nanopowder Concentration on Rheological Behaviour of Ceramic Inkjet Inks

1st International Conference on Rheology and Modeling of Materials

物理学;材料科学

Kyrpal, R.^1 ; Dulina, I.^1 ; Ragulya, A.^1

Frantsevich Institute for Problems of Materials Science, National Academy of Science of Ukraine, Krzhyzhanovsky St. 3, Kyiv

03142, Ukraine^1

关键词: Colloidal structures;    Constrained conditions;    Pigment concentration;    Rheological behaviour;    Rheological property;    Solid-phase concentration;    Structure formations;    Structure transformations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/602/1/012036/pdf
DOI  :  10.1088/1742-6596/602/1/012036

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The relationship between rheological properties of ceramic inkjet inks based on BaTiO3nanopowder and solid phase concentration has been investigated. In the ink volume takes place the formation periodic colloidal structures (PCS). The determining factor of structure formation is powder-dispersant ratio. Structural constitution of in the system with the low pigment concentration represented as PCS2, that contains solid particles in deflocculated that stabilized by the presence of adsorption-solvate layers. Dilatant structure formation for such inks explained by constrained conditions of the interaction. Samples with high BaTiO3concentration have been classified as PKS1. Dilatant properties of the PKS1resulted in particles rearrangement under the influence of the flow. In the region of some values powder-dispersant ratio take place conversation PKS2to PKS1and ink structure transformation from monodisperse to aggregate state.