A novel and flexible processing for hot embossing of glass microfluidic channels. Issue 1 (1st January 2021)

• Record Type: Journal Article
• Authors: Jiang, Kai; Li, Kangsen; Xu, Gang; Gong, Feng; Wu, Xiaoyu; Diao, Dongfeng; Zhu, Likuan
• Is Part Of: Ceramics international. Volume 47:Issue 1(2021)
• Page Start: 1447
• Page End: 1455
• Publication Date: 2021-01-01
• Subjects: Hot embossing -- Low-Tg glass microfluidic channels -- High-Tg glass mold insert -- Morphology evolution; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.09.253
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Hot embossing of glass microfluidic channels has great potential for applications in the field of medical diagnosis, biochemical analysis, and optical sensors. However, to fabricate the high-temperature resistance, ultrahard, and durable micro mold insert is a big challenge for the glass embossing techniques. . In this study, we proposed a new type of glass embossing techniques that a glass mold insert with high transition temperature ( T g ) was manufactured in the supercooled liquid region and it was then used for the low- T g glass embossing processing. To verify the flexibility and reliability of the embossing processing using the high- T g glass mold insert, the detailed characterizations were conducted to study the morphology evolution and time-temperature-transformation for the high- T g glass mold insert and low- T g glass microfluidic channels. The experimental results showed that the high- T g glass mold insert has a very fine surface quality and high flexibility. The high- T g glass, which has remarkable high-temperature resistance and hot-forming ability, is proved to be a flexible and new ideal material as the hot embossing mold insert for low- T g glass microfluidic channels. This work provides a new type of the hot embossing techniques for amorphous materials.