Tunable magnetochromic elastomer with instantaneous color changes
文献类型：会议论文
| 作者 | Li, Chonghui1,2; Mazurek, Piotr1; Yu, Liyun1; Skov, Anne Ladegaard1 |
| 出版日期 | 1905-07-14 |
| 会议日期 | April 4, 2022 - April 10, 2022 |
| 关键词 | Color - Colorimetry - Emulsification - Magnetic fields - Microchannels - Nanomagnetics - Nanoparticles - Particle size - Plastics - Polydimethylsiloxane - Polyethylene glycols - Pulse width modulation - Rubber - Size distribution - Surface active agents |
| 卷号 | 12041 |
| DOI | 10.1117/12.2612167 |
| 英文摘要 | A controllable magnetochromic elastomer is developed by dissolving magnetic nanoparticles (MNPs) in poly(ethylene glycol)-200 (PEG-200) and emulsifying the solution in polydimethylsiloxane (PDMS) using a high-shear Speedmixer. The MNPs are aligned in order along the direction of the externally applied magnetic field, causing the material to become transparent and realizing a switch on/off function. Both particle size and size distribution were observed to affect magnetochromic response, and use of an ultrasonication bath was shown to prohibit MNP agglomerations. In addition, the surfactant surface-modified MNPs synthesized via co-precipitation were shown to possess both a smaller primary size and a narrower size distribution compared to non-treated commercial MNPs, leading to improved MNP dispersion stability in PEG-200. The optimized silicone elastomer-with 40 parts per hundred rubber (phr) PEG-200 and 3 wt% MNPs modified by citric acid surfactant-exhibits instantaneous and reversible color change when exposed to an external magnetic field. The color changing efficiency and fast response time of the magnetochromic elastomer developed here are suited to a variety of color tuning applications: e.g., bio-sensors and anticounterfeiting labels. 漏 2022 SPIE. All rights reserved. |
| 项目编号 | The work was supported by the Danish Research Engineering, Technical University of Denmark. |
| 会议录 | Proceedings of SPIE - The International Society for Optical Engineering
 ; Bioinspiration, Biomimetics, and Bioreplication XII 2022
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| 会议录出版者 | SPIE |
| 学科主题 | Silicones |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59619]  |
| 作者单位 | 1.Department of Chemical and Biochemical Engineering, Danish Polymer Center, Technical University of Denmark, Lyngby, 2800, Denmark 2.Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Li, Chonghui,Mazurek, Piotr,Yu, Liyun,et al. Tunable magnetochromic elastomer with instantaneous color changes[C]. 见:. April 4, 2022 - April 10, 2022. |
入库方式： OAI收割
来源：过程工程研究所
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