Issue 42, 2018

Creation of three-dimensional structures by direct ink writing with kaolin suspensions

Abstract

The fabrication of micro-sized three-dimensional (3D) patterns with kaolin-based materials has significant potential in structural, functional, and industrial applications. In this study, kaolin suspensions with varying silicate moduli of water glass (WG) were used in direct ink writing (DIW) for assembly of 3D structures. To investigate the influence of suspension stability and writability with various silicate moduli of WG, a series of zeta potential and rheological tests were implemented. The kaolin suspension with a WG silicate modulus of 2.4 has the maximum zeta potential absolute value of 75.93 mV, which reflected the highly stabilized suspension. These rheological results demonstrated that a kaolin suspension with a WG silicate modulus of 2.4 was the optimal DIW suspension because of its good shear thinning and viscoelastic properties at a lower shear stress. The filaments in this kaolin suspension maintained their initial shape without spreading. Excellent 3D written structures with a geometrical dimension of 700 μm were successfully prepared.

Graphical abstract: Creation of three-dimensional structures by direct ink writing with kaolin suspensions

Article information

Article type
Paper
Submitted
27 Jun 2018
Accepted
01 Oct 2018
First published
04 Oct 2018

J. Mater. Chem. C, 2018,6, 11392-11400

Creation of three-dimensional structures by direct ink writing with kaolin suspensions

Q. Sun, Z. Yang, H. Cheng, Y. Peng, Y. Huang and M. Chen, J. Mater. Chem. C, 2018, 6, 11392 DOI: 10.1039/C8TC03152E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements