Thermal Conductivity of Nanocomposites Based in High Density Polyethylene and Surface Modified Hexagonal Boron Nitride via Cold Ethylene Plasma
| Autor: | M.G. Neira-Velázquez, Ernesto Hernández-Hernández, L. F. Ramos-deValle, José Javier Borjas-Ramos, Gustavo Soria-Arguello, E.M. Saucedo-Salazar |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Thermogravimetric analysis Nanocomposite Materials science General Chemical Engineering Nanoparticle 02 engineering and technology General Chemistry Polyethylene Conductivity 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Surfaces Coatings and Films chemistry.chemical_compound Differential scanning calorimetry chemistry Chemical engineering Transmission electron microscopy 0103 physical sciences High-density polyethylene 0210 nano-technology |
| Zdroj: | Plasma Chemistry and Plasma Processing. 38:429-441 |
| ISSN: | 1572-8986 0272-4324 |
| Popis: | Hexagonal boron nitride nanoparticles (hBN) were surface modified by treatment with cold ethylene plasma. During this treatment, an ultrathin plasma polymerized polyethylene layer is deposited on the surface of the hBN nanoparticles. Before and after the plasma treatment, the nanoparticles were characterized by infra-red spectroscopy, thermogravimetric analysis, transmission electron microscopy (TEM) and X-ray diffraction. Untreated and plasma treated nanoparticles were incorporated via melt mixing into high density polyethylene (HDPE), at different concentrations. Dispersion of hBN within the polymer and the polymer-particle interaction were studied by TEM. Thermal conductivity of the prepared nanocomposites was determined by modulated differential scanning calorimetry. In general, the thermal conductivity of all HDPE–hBN prepared nanocomposites was higher than that of pure HDPE. However, the higher conductivity values, 97 and 114% higher than that of pure HDPE, were obtained in plasma treated samples (treated at 100 W for 5 min) with 8 and 15 wt% loading of hBN. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink