用于制备柔性传感电子元件的热塑性聚氨酯-液态金属复合油墨的三维打印技术。

IF 2.5 4区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Dr. Shuting Liang, Dr. Mengjun Huang, Dr. Dabo Jiang, Dr. Jianyang Chen, Prof. Liang Hu, Mr. Jiujia Chen, Mr. Zhezi Wang
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引用次数: 0

摘要

液态金属的直接三维打印难以成型且易于破坏。本文开发了一种由热塑性聚氨酯(TPU)基体和液态金属(LM)分散液滴组成的3D打印复合材料,并介绍了用这种复合材料实现3D打印设备的方法:首先,在 190 至 200 °C的温度下,通过超声波混合将液态金属添加到 10 至 50wt %的热塑性聚氨酯中,制备混合油墨。固体冷却后,用 Wellzoom 台式挤压机在 190 ℃、400 mm/min 的挤出速度下制备出直径为 600 μm 的 LM-TPU 复合纤维。它具有极佳的弹性,拉伸极限为 0.637 N/m2,并且 TPU 可以均匀地包裹 LM 液滴。最后,使用三维打印机在 240 °C 下对 LM-TPU 纤维进行三维打印,制备出具有加热和导电功能的二维/三维柔性电子器件。该微电路具有良好的导电性,加压后具有放热功能,可用作加热保暖设备和各种柔性可穿戴电子产品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

3D Printing of TPU-Liquid Metal Composite Inks for the Preparation of Flexible Sensing Electronics

3D Printing of TPU-Liquid Metal Composite Inks for the Preparation of Flexible Sensing Electronics

3D Printing of TPU-Liquid Metal Composite Inks for the Preparation of Flexible Sensing Electronics

Direct 3D printing of liquid metal is difficult to form and easy to destroy. In this paper, we developed a 3D printed composite material consisting of a thermoplastic polyurethane (TPU) matrix and liquid metal (LM) dispersed droplets, and introduced the method for realizing 3D printed devices with this composite material: First, the LM is added to 10~50wt %TPU at 190~200 °C through ultrasonic blending to prepare blended ink. After solid cooling, the LM-TPU composite fiber with a diameter of 600 μm was prepared by Wellzoom desktop extruder at 190 °C at an extrusion speed of 400 mm/min. It has excellent elasticity, with a tensile limit of 0.637 N/m2, and the TPU could evenly wrap LM droplets. Finally, the LM-TPU fiber is 3D printed at 240 °C by using a 3D printer, and 2D/3D flexible electronic devices with heating and conductive functions could be prepared. The microcircuit has good electrical conductivity; after adding voltage, the circuit has heat release; it could be used as heating equipment to keep warm and used in various flexible wearable electronic products.

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来源期刊
ChemistryOpen
ChemistryOpen CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
4.80
自引率
4.30%
发文量
143
审稿时长
1 months
期刊介绍: ChemistryOpen is a multidisciplinary, gold-road open-access, international forum for the publication of outstanding Reviews, Full Papers, and Communications from all areas of chemistry and related fields. It is co-owned by 16 continental European Chemical Societies, who have banded together in the alliance called ChemPubSoc Europe for the purpose of publishing high-quality journals in the field of chemistry and its border disciplines. As some of the governments of the countries represented in ChemPubSoc Europe have strongly recommended that the research conducted with their funding is freely accessible for all readers (Open Access), ChemPubSoc Europe was concerned that no journal for which the ethical standards were monitored by a chemical society was available for such papers. ChemistryOpen fills this gap.
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