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Polymère biodégradable et nanocomposite

Polymère biodégradable et nanocomposite


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About the Book

Les plastiques utilisés par les industries d'emballage alimentaire sont généralement fabriqués à partir de polyoléfines qui sont des matériaux entièrement issus de la pétrochimie, comme par exemple: le polystyrène (PS), le polypropylène (PP), le polytéréphtalate d'éthylène (PET) et le polyéthylène (PE). Les liquides chauds peuvent déformer le plastique; c'est pourquoi le PP est utilisé car il résiste à la température de déformation. Le PS trouve son application dans les emballages de protection, les bouteilles, les récipients alimentaires et les emballages de services alimentaires. Le PET est mieux connu pour sa transparence et sa résistance; il présente un excellent blocage pour les réactions avec l'oxygène, l'eau et le dioxyde de carbone. Sa résistance aux chocs et à la traction est plus élevée, ce qui en fait un matériau idéal pour l'emballage de boissons, d'eau, de jus et de boissons pour sportifs. La plupart des polymères utilisés dans l'emballage sont d'origine pétrochimique, son utilisation dans des articles jetables pose de sérieux problèmes écologiques. Les nanocomposites biodégradables qui ont des propriétés thermiques, mécaniques et de barrière supérieures à celles des matériaux biologiques actuels peuvent être synthétisés à partir de bio-polymères et de nano-renforcements. Les matières premières de ces nouveaux composites nanostructurés seront des bio-polymères naturels (acide polylactique et esters de cellulose) avec de l'argile et des nano-moustaches.


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Product Details
  • ISBN-13: 9786202864084
  • Publisher: KS Omniscriptum Publishing
  • Publisher Imprint: Editions Notre Savoir
  • Height: 229 mm
  • No of Pages: 144
  • Spine Width: 9 mm
  • Width: 152 mm
  • ISBN-10: 6202864087
  • Publisher Date: 20 Oct 2020
  • Binding: Paperback
  • Language: French
  • Returnable: N
  • Weight: 272 gr


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