| Titre : |
Controlled reactivity : In-situ polymerization for fully-automated production of lightweight structures |
| Type de document : |
texte imprimé |
| Auteurs : |
Norbert Müller, Auteur ; Peter Egger, Auteur ; Lorenz Reith, Auteur ; Georg Steinbichler, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 102-104 |
| Langues : |
Anglais (eng) |
| Catégories : |
Composites à fibres
Composites à fibres -- Moulage par injection
e-caprolactameLe caprolactame ou plus précisément l'?-caprolactame est un lactame comprenant sept atomes dans son cycle. Il sert de monomère dans la synthèse du nylon-6.
Matériaux -- Allègement
Matières plastiques -- Moulage par injection multicomposant
Polyamide 6
Polymérisation
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
In-situ polymerization of Caprolactam to create fiber composite carrier structures with subsequent functionalization of the component through injection molding is very closely approaching the ideal of economic series production. One decisive equipment component here is the unit for preparing and injecting the reactive components. At K 2016, Engel Austria is defining the next milestone en route to series production, with a newly-developed reaction unit for which a patent has been registered. |
| Note de contenu : |
- Finished parts in a one-step process
- Keeping tight control over monomers
- Precise synchronization of the injection plungers
- Multi-component technology with gravity as an assistant
- Tailor-made systems for greater efficiency
- FIGURES : Processing scheme for manufacturing in-situ components with molded detail geometries process integration boosts the economic efficiency of the manufacturing process - 2. Anionic ring-opening polymerization creates poyamide 6 from ε-caprolactam - 3. The special feature of the new reactive unit is the reduced thermal exposure of the monomeric material. The melting units hold a volume required for three shots as a maximum - 4. Computer tomography investigations reveal that the fabric can be impregnated virtually without pores - 5. Working in the direction of gravity offers benefits in many applications where preforms are used. The example shown in the figure is a system layout for an integrated multiple component process on a vertical injection molding machine - 6. The production cell combines an in-situ polymerization process with classical injection molding to produce lightweight shovels |
| En ligne : |
https://drive.google.com/file/d/1NtgoQppulSNoSXIoEUmxTaYB6JU_rb_o/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28071 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 106, N° 10 (10/2016) . - p. 102-104
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