Dissertation Title: Electro-responsive Viscoelasticity and Microstructure Tuning of Polymeric Materials Based on Rheological Analysis

Date: 2025/05/22 - 2025/05/22

Dissertation Title: Electro-responsive Viscoelasticity and Microstructure Tuning of Polymeric Materials Based on Rheological Analysis

Speaker: Yinuo Teng, Ph.D. student at UM-SJTU Joint institute

Time: 15: 00, Thursday, May 22, 2025 (Beijing Time)

Location: Room 503, Long Bin Building

Abstract

Electroactive polymer materials undergo shape and mechanical property changes when subjected to an electric stimulus, making them ideal for applications in soft robotics, actuators, and sensors. The mechanical behavior of polymers is inherently viscoelastic. Although electrorheological (ER) studies have demonstrated that electric fields can enhance polymer viscosity, a comprehensive understanding of the electro-responsive viscoelasticity and the microstructural evolution driven by the ER effect remains lacking. This dissertation investigates polymeric materials’ viscoelastic and structural responses under electrical stimulation, focusing on polymer chain relaxation dynamics, molecular weight effects, and microstructure regulation in polymer-particle composites.

Biography

Yinuo Teng is currently a Ph.D. student at UM-SJTU Joint institute. She received her B.S. degree in Mechanical Design, Manufacturing and Automation from Shandong University. Her research focuses on the electrorheology of polymeric materials.