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Polypropylene crystallization at an alumina interface using single walled carbon nanotubes
- Source :
- Journal of colloid and interface science. 543
- Publication Year :
- 2018
-
Abstract
- Interfaces play an important and often limiting role in the mechanical, thermal, and electrical performance of composite materials. Here we suggest a novel method to improve the interfacial interaction in polypropylene-alumina composites using single-walled carbon nanotubes (SWNTs) to nucleate lamellar crystals at the interface. Macroscopic alumina substrates are used to determine the ideal crystallization parameters and investigate the kinetics of crystal growth. SWNTs are uniformly adsorbed to the interface via Van der Waals interactions and lamellar crystals are grown on the surface using isothermal solution processing techniques. Avrami analysis of crystal surface coverage was used to confirm one-dimensional transcrystalline growth commonly seen with SWNT nucleated crystals. Scanning electron microscopy was used to confirm shish-kebab structures present at the SWNT-polypropylene interface. The determined crystallization parameters were used on colloidal solutions of alumina platelets to successfully create uniformly coated particles with an improved interface. This method shows promise for improving the interphase of semicrystalline polymer-ceramic composites to achieve excellent material properties.
- Subjects :
- Materials science
Scanning electron microscope
Nucleation
Crystal growth
02 engineering and technology
Carbon nanotube
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
law.invention
Biomaterials
Crystal
symbols.namesake
Crystallinity
Colloid and Surface Chemistry
Chemical engineering
law
symbols
Crystallization
van der Waals force
0210 nano-technology
Subjects
Details
- ISSN :
- 10957103
- Volume :
- 543
- Database :
- OpenAIRE
- Journal :
- Journal of colloid and interface science
- Accession number :
- edsair.doi.dedup.....ff77e74476eb1109c8205c85146cc071