LDPE Oxidation by CO2 Laser Radiation (10.6 µm)
| Autor: | Juan José Soto-Bernal, A. Martínez-Romo, Iliana Rosales-Candelas, Rosario González-Mota |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Co2 laser Ir absorption Polymers and Plastics Article Subject 02 engineering and technology Radiation 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry lcsh:Chemical technology 01 natural sciences 0104 chemical sciences Crystallinity Low-density polyethylene Attenuated total reflection lcsh:TP1-1185 Irradiation Fourier transform infrared spectroscopy 0210 nano-technology |
| Zdroj: | International Journal of Polymer Science, Vol 2018 (2018) |
| ISSN: | 1687-9430 1687-9422 |
| Popis: | Thermooxidation of LDPE films by CO2 laser radiation, 10.6 μm, was characterized by Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR). The formation of carbonyl and hydroxyl functional groups onto LDPE films was dependent on the fluency of CO2 laser. IR absorption of vinyl groups and C-O bond present in alcohols showed a decrease and an increase, respectively, indicating that CO2 laser radiation causes simultaneous formation and accumulation of hydroperoxides in LDPE films; furthermore, crystallinity of LDPE films irradiated with CO2 tends to increase. So, CO2 laser radiation is able to oxidize the LDPE films, obtaining a PE with similar spectroscopic properties to that of PE-BIO by a physical process. |
| Databáze: | OpenAIRE |
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