On the compatibilization of PET/HDPE blends through a new class of copolyesters
| Autor: | Antonino Valenza, Francesco Pilati, Annamaria Visco, Maurizio Toselli, T. L. Dimitrova, F. P. La Mantia |
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| Rok vydání: | 2000 |
| Předmět: |
chemistry.chemical_classification
POLYETHYLENE Materials science compatibilization Polymers and Plastics Organic Chemistry PET/HDPE blends Maleic anhydride Polymer Compatibilization Polyethylene Elastomer copolyesters LIQUID-CRYSTALLINE POLYMER Polyester chemistry.chemical_compound chemistry Chemical engineering Materials Chemistry Polymer blend High-density polyethylene Composite material |
| Zdroj: | Polymer. 41:4817-4824 |
| ISSN: | 0032-3861 |
| DOI: | 10.1016/s0032-3861(99)00709-0 |
| Popis: | Polyethyleneterephthalate (PET) and polyethylene are incompatible polymers and their blends show, in general, poor properties. Compatibilization is then a necessary step to obtain blends with good mechanical and barrier properties. In this work different compatibilizing agents were used, i.e. a maleic anhydride elastomer and some new products containing graft-copolymers having polyester segments grafted onto polyethylene backbone chains. Both the functionalized elastomer and the new products drastically improve the morphology and the ductility of the blend. In the case of the modified elastomer the compatibilizing action has been attributed to the formation of H-bonds whereas the copolymers contained in the new products act as compatibilizing agents as they contain polyester segments and polyethylene segments with thermodynamic affinity with PET and polyethylene, respectively. |
| Databáze: | OpenAIRE |
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