| Titre : |
Long-chained and high-viscous : High-viscosity recyclates from cast polyamide 6 |
| Type de document : |
texte imprimé |
| Auteurs : |
Benjamino R. Formisano, Auteur ; Christian Bonten, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 49-52 |
| Langues : |
Anglais (eng) |
| Catégories : |
Acides carboxyliques
Composés organiques -- Synthèse
Elasticité
Matières plastiques -- Propriétés mécaniques
Matières plastiques -- Recyclage
Polyamide 6
Polymères -- Recyclage
Polymérisation
Produits et matériaux recyclés -- Analyse
Viscosité
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
In cast polyamides, the catalyst is retained and remains active, causing the material to degrade during processing in the molten state. To preserve the high-value properties of the material after recycling, specific additives are required. Trials show that it is possible to produce high-viscosity polyamides that can find future use in, for example, thermoforming. |
| Note de contenu : |
- Characteristics of cast polyamide
- Recycling cast polyamide scrap
- Properties of the recyclate
- FIGURES : 1. Synthesis routes for hydrolytic and anionic polymerization of polyamide 6 - 2. Gearwheels and pulleys are typical applications for cast polyamide - 3. The viscosities of cast polyamide recyclates with polyester-modified wax (G) and carboxylic acid (C) at 270°C - 4. The intersection of the storage and loss modulus curves of a thermoplastic permits analysis of its average molecular weight. Just small quantities of carboxylic acid achieve a molecular weight similar to the original weight, while larger amounts of was produce even higher average molecular weights - 5. The elastic modulus of the high-viscosity cast polyamide recyclates, remains virtually the same, despite different additives - 6. The tensile strength values of the cast polyamides, are not influenced by the additives - 7. In their effect on the notched impact strength values of the cast polyamide recyclates, wax and carboxylic acid show different trends |
| En ligne : |
https://drive.google.com/file/d/1aPQzHNYm9rVBVv-fCCz5qeUnYcTOz2RW/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29684 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 12 (12/2017) . - p. 49-52
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