Conductive 3D microstructures by direct 3D printing of polymer/carbon nanotube nanocomposites via liquid deposition modeling

被引：304

作者：

Postiglione, Giovanni ^{[1
]}

Natale, Gabriele ^{[1
]}

Griffini, Gianmarco ^{[1
]}

Levi, Marinella ^{[1
]}

Turri, Stefano ^{[1
]}

机构：

[1] Politecn Milan, Dept Chem Mat & Chem Engn Giulio Natta, I-20133 Milan, Italy

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2015年 / 76卷

关键词：

Polymer-matrix composites (PMCs); Electrical properties; Rheological properties; 3D printing;

D O I：

10.1016/j.compositesa.2015.05.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, a new three-dimensional (3D) printing system based on liquid deposition modeling (LDM) is developed for the fabrication of conductive 3D nanocomposite-based microstructures with arbitrary shapes. This technology consists in the additive multilayer deposition of polymeric nanocomposite liquid dispersions based on poly(lactic acid) (PLA) and multi-walled carbon nanotubes (MWCNTs) by means of a home-modified low-cost commercial benchtop 3D printer. Electrical and rheological measurements on the nanocomposite at increasing MWCNT and PLA concentrations are used to find the optimal processing conditions and the printability windows for these systems. In addition, examples of conductive 3D microstructures directly formed upon 3D printing of such PLA/MWCNT-based nanocomposite dispersions are presented. The results of our study open the way to the direct deposition of intrinsically conductive polymer-based 3D microstructures by means of a low-cost LDM 3D printing technique. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：110 / 114

页数：5

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