Synthesis of Lightweight Renewable Microwave-Absorbing Bio-Polyurethane/Fe₃O₄ Composite Foam: Structure Analysis and Absorption Mechanism.

ABSTRACT: Sustainable renewable polymer foam used as a lightweight porous skeleton for microwave absorption is a novel strategy that can effectively solve the problems of the large surface density, high additive amount, and narrow absorbing band of absorbing materials. In this article, novel renewable microwave-absorbing foams were prepared using Sapiumse biferum kernel oil-based polyurethane foam (BPUF) as porous matrix and Fe₃O₄-nanoparticles as magnetic absorbents. The microstructure and the microwave absorption performance, the structural effects on the properties, and electromagnetic mechanism of the magnetic BPUF (mBPUF) were systematically characterized and analyzed. The results show that the mBPUF displayed a porous hierarchical structure and was multi-interfacia

SUBMITTER: Xu X 

PROVIDER: S-EPMC9603621 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature