Microwave–Induced Thermo-Responsive Shape Memory Polyurethane/MWCNTs Composites and Improved their Shape Memory and Mechanical Properties

By : Krishan Kumar Patel, Rajesh Purohit

Page No: 23-37

Abstract:
Microwave (MV)-induced thermo-responsive shape memory thermoplastic polyurethane (SMTPU)/ MWCNT composites were prepared in micro-compounder. Composites containing different amount of multiwall Carbon nanotube (MWCNT) varying from 0 to 1.5 phr in SMTPU matrix were prepared. Maximum stretching strength, recovery force and tensile strength for 1.5 CNTPU (1.5 phr MWCNT in SMTPU matrix) was increased by 120%, 100% and 24% respectively as compared to SMTPU. MV-induced shape memory is a novel approach for fast, clean and remote heating during operation. MWCNT is strong absorber of microwave irradiation so that SMTPU/ MWCNTs nanocomposites successfully triggered by microwave.

Authors:
Krishan Kumar Patel and Rajesh Purohit
Mechanical Engineering Department, Maulana Azad National Institute of Technology, Bhopal M.P. India 462003

DOI: https://doi.org/10.32381/JPM.2019.36.01.3