POLY(ETHYLENE-CO-VINYL ACETATE) (EVA) COPOLYMERS AS MODIFIERS OF OIL WAX CRYSTALLIZATION
| Autor: | Elizabete F. Lucas, André L. C. Machado |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Thermogravimetric analysis
Wax Chemistry General Chemical Engineering technology industry and agriculture Energy Engineering and Power Technology General Chemistry Geotechnical Engineering and Engineering Geology law.invention Gel permeation chromatography chemistry.chemical_compound Fuel Technology Differential scanning calorimetry law visual_art Polymer chemistry otorhinolaryngologic diseases visual_art.visual_art_medium Vinyl acetate Copolymer Molar mass distribution Crystallization Nuclear chemistry |
| Zdroj: | Petroleum Science and Technology. 17:1029-1041 |
| ISSN: | 1532-2459 1091-6466 |
| DOI: | 10.1080/10916469908949763 |
| Popis: | This work describes the performance of poly(ethylene-co-vinyl acetate) (EVA) copolymers as pour point reducer and organic deposits inhibitor. The molecular weight, molecular weight distribution and vinyl acetate content of the EVA copolymers were determined by gel permeation chromatography and thermogravimetric analyses, respectively. The copolymer with the highest vinyl acetate content (within the range analyzed, 28-41 wt %) exhibited the best performance as organic deposits inhibitor. Results from differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) suggest that the EVA copolymer acts modifying the morphology of the wax crystals. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|