Affiliation:
1. School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
2. Department of Engineering, University of Cambridge, Cambridge CB3 0FS, UK
3. Key Laboratory for Light-Weight Materials, Nanjing Tech University, Nanjing 210009, China
Abstract
Polyethersulfone (PES) has outstanding thermal and dimensional stability. It is considered an engineering thermoplastic. However, its high coefficient of thermal expansion (CTE) hinders its use in automobiles, microelectronics, and flexible display areas. To overcome its high coefficient of thermal expansion (CTE), recent studies have focused on reducing its high CTE and improving its mechanical properties by adding nano-sized fillers or materials. The addition of nanofiller or nanofibrils to the PES matrix often has a positive effect on its mechanical and thermal properties, making it a flexible display substrate. To obtain ideal flexible substrates, we prepared polyethersulfone with lignin nanocomposite films to reduce CTE and improve the mechanical and thermal properties of PES by varying the relative ratio of PES in the lignin nanocomposite. In this study, lignin as a biodegradable nanofiller was found to show high thermal, oxidative, and hydrolytic stability with favorable mechanical properties. PES/lignin nanocomposite films were prepared by solution casting according to the content of lignin (0 to 5 wt.%). PES/lignin composite films were subjected to mechanical, thermo-mechanical, optical, and surface analyses. The results showed enhanced thermomechanical and optical properties of PES, with the potential benefits of lignin filler materials realized for the development of thermoplastic polymer blends.
Subject
Polymers and Plastics,General Chemistry
Reference35 articles.
1. Invited Paper: Roll-to-Roll Flexible Display for e-Paper Applications;Chen;Proceedings of the 49th Annual SID Symposium, Seminar, and Exhibition 2011, Display Week 2011, Los Angeles, CA, USA, 15–20 May 2011,2011
2. Low-Voltage, Low-Power, Organic Light-Emitting Transistors for Active Matrix Displays;McCarthy;Science,2011
3. Highly Flexible AM-OLED Display With Integrated Gate Driver Using Amorphous Silicon TFT on Ultrathin Metal Foil;Yoo;J. Disp. Technol.,2010
4. Crawford, G.P. (2005). Flexible Flat Panel Displays, John Wiley & Sons, Ltd.
5. Technology Advances in Flexible Displays and Substrates;Chen;IEEE Access,2013