Flexible high-loading particle-reinforced polyurethane magnetic nanocomposite fabrication through particle-surface-initiated polymerization
Creators
- 1. Multifunctional Composites Lab, Mechanical and Aerospace Engineering Department and Materials Science and Engineering Department, University of California Los Angeles, Los Angeles, CA 90095 (United States)
- 2. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803 (United States)
Description
Flexible high-loading nanoparticle-reinforced polyurethane magnetic nanocomposites fabricated by the surface-initiated polymerization (SIP) method are reported. Extensive field emission scanning electron microscopic (SEM) and atomic force microscopic (AFM) observations revealed a uniform particle distribution within the polymer matrix. X-ray photoelectron spectrometry (XPS) and differential thermal analysis (DTA) revealed a strong chemical bonding between the nanoparticles and the polymer matrix. The elongation of the SIP nanocomposite under tensile test was about four times greater than that of the composite fabricated by a conventional direct mixing fabrication method. The nanocomposite shows particle-loading-dependent magnetic properties, with an increase of coercive force after the magnetic nanoparticles were embedded into the polymer matrix, arising from the increased interparticle distance and the introduced polymer-particle interactions
Additional details
Identifiers
- DOI
- 10.1088/0957-4484/18/33/335704;
- PII
- S0957-4484(07)49491-0;
Publishing Information
- Journal Title
- Nanotechnology (Print)
- Journal Volume
- 18
- Journal Issue
- 33
- Journal Page Range
- p. 335704
- ISSN
- 0957-4484
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39040726
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ATOMIC FORCE MICROSCOPY; CHEMICAL BONDS; COERCIVE FORCE; COMPOSITE MATERIALS; DIFFERENTIAL THERMAL ANALYSIS; ELONGATION; FABRICATION; FIELD EMISSION; LOADING; MAGNETIC PROPERTIES; NANOSTRUCTURES; PARTICLE INTERACTIONS; PARTICLES; POLYMERIZATION; POLYURETHANES; SCANNING ELECTRON MICROSCOPY; X-RAY PHOTOELECTRON SPECTROSCOPY
- Descriptors DEC
- CHEMICAL REACTIONS; DEFORMATION; ELECTRON MICROSCOPY; ELECTRON SPECTROSCOPY; EMISSION; INTERACTIONS; MATERIALS; MATERIALS HANDLING; MICROSCOPY; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHOTOELECTRON SPECTROSCOPY; PHYSICAL PROPERTIES; PLASTICS; POLYAMIDES; POLYMERS; SPECTROSCOPY; SYNTHETIC MATERIALS; THERMAL ANALYSIS