학술논문
New PLA/PEI-functionalized Fe3O4 nanocomposite: Preparation and characterization
Document Type
Article
Author
Source
Journal of Industrial and Engineering Chemistry, 24(0), pp.211-218 Apr, 2015
Subject
Language
English
ISSN
1876-794X
1226-086X
1226-086X
Abstract
In this work, Fe3O4 nanoparticles were functionalized with hyperbranched polyethylenimine (PEI). The neat Fe3O4 nanoparticles (MNP) and functionalized Fe3O4 (MNP@PEI) were separately incorporated into a polylactic acid (PLA). Compared to the neat MNP, the functionalized nanoparticles (MNP@PEI) had better dispersion in the PLA matrix. The properties of the nanocomposites were strongly related to the dispersion and interaction between the nanoparticles and PLA matrix. The heat barrier effect and high nitrogen content of the MNP@PEI nanoparticles were found to be responsible for the improvement of the thermal and flame resistance properties.