Can Polyethylene be a Photo(bio)Degradable Synthetic Polymer?
| Autor: | René Arnaud, Annie Fauve, Sahar Al-Malaika, Gerald Scott, Sukhinder Chohan, Jacques Lemaire, Philippe Dabin, Abderrazek Maaroufi |
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| Rok vydání: | 1995 |
| Předmět: |
Materials science
Polymers and Plastics Solid particle General Chemistry Biodegradation Polyethylene Synthetic polymer Chemical evolution Low-density polyethylene chemistry.chemical_compound Abiotic degradation Chemical engineering chemistry Phase (matter) Materials Chemistry Ceramics and Composites Organic chemistry |
| Zdroj: | Journal of Macromolecular Science, Part A. 32:731-741 |
| ISSN: | 1520-5738 1060-1325 |
| DOI: | 10.1080/10601329508010284 |
| Popis: | A polymeric system based on LDPE would be qualified as a “photo(bio)degradable synthetic polymer” for use as films or thin systems in plasticulture and later in packaging where severe specific criteria should be respected. The evolution of such a system in environmental conditions should present three phases. In Phase I, corresponding to storage and use, in the presence of physicochemical and biological aggression, chemical evolution should be very limited and resistance to any microorganism should be observed. In Phase II a rapid abiotic degradation should occur until the complete destruction of physical (mechanical) properties and spontaneous fragmentation of the thin systems into more and more divided parts. Phase III corresponds to bioassimilation of heavily transformed (oxidized) solid particles. Phase I should be predicted and controlled on the basis of artificial photoaging or thermoaging experiments. Depending on the desired lifetime of the system, nonaccelerated, accelerated, or ultra-ac... |
| Databáze: | OpenAIRE |
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