Preparation and Characterization of Low CTE Poly(ethersulfone) Using Lignin Nano Composites as Flexible Substrates

Area of Science:

• Polymer Science
• Materials Science
• Nanotechnology

Background:

• Polyethersulfone (PES) is a stable engineering thermoplastic.
• High coefficient of thermal expansion (CTE) limits PES applications.
• Nanofillers can enhance mechanical and thermal properties of polymers.

Purpose of the Study:

• To reduce the CTE of PES.
• To improve mechanical and thermal properties of PES.
• To develop ideal flexible substrates using PES/lignin nanocomposites.

Main Methods:

• Prepared polyethersulfone/lignin nanocomposite films via solution casting.
• Varied lignin content from 0 to 5 wt.%.
• Analyzed mechanical, thermo-mechanical, optical, and surface properties.

Main Results:

• Lignin addition enhanced thermomechanical and optical properties of PES.
• Biodegradable lignin nanofiller exhibited high stability and favorable mechanical properties.
• PES/lignin nanocomposites show potential for flexible display substrates.

Conclusions:

• Lignin is an effective nanofiller for improving PES properties.
• PES/lignin nanocomposites offer a promising route for advanced thermoplastic polymer blends.
• The study highlights the potential of lignin in developing high-performance materials.