| 초록 |
Polyethersulfone (PES) is known as engineering thermoplastic for flexible display substrate, which requires thermal and dimensional stability. PES has the high coefficient of thermal expansion (CTE). To reduce CTE and improve mechanical property of PES, the addition of inorganic fillers of low thermal expansion has been applied by many researchers. There is poor compatibility between fillers and PES, and therefore, the fillers need chemical treatment. Lignin as a filler has been evaluated high thermal, oxidative, and hydrolytic stability and favorable mechanical properties. In this study, PES composite films were prepared by a solution casting according to the content of lignin. The properties of PES/lignin composite films were determined by mechanical, thermo-mechanical and optical analysis. The results showed the enhanced thermo-mechanical and optical properties of PES and realized the potential benefits of lignin filler materials for the development of thermoplastic polymer blends. |
