back to top
My wish lists
Save your wish list
If you want to add more content to your wish list, simply log in. If you do not have a user account, please register for the Hanser Customer Center.

» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.
Your wish lists
If you want to use your wish list during your next visit, simply log in. If you do not have a user account, please register for the Hanser Customer Center.
» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.

« Back

Your advantages at a glance

  • One login for all Hanser portals
  • Individual home page for faster access to preferred content
  • Exclusive access to selected content
  • Personal wish lists on all portals
  • Central management of your personal information and newsletter subscriptions

Register now
Deutsch
Bookmark Bookmarked

The crystallization of fibre-reinforced thermoplastics during fast cooling and under pressure

The crystallization of natural and glass fibre reinforced poly(propylene) (PP) and poly(butylene terephthalate) (PBT) has been investigated during very fast cooling (dT/dt < 200 K/s) and under pressure (p < 200 MPa). For this, an apparatus for quenching has been designed which features boundary conditions that are comparable to the injection moulding process and at the same time well defined. This allows for the treatment of heat conduction as being one-dimensional. The equations governing crystallization kinetics are based on nucleation and growth and include a pressure dependence. The thermal material data are described with regards to the morphology (glass fibre content). The model has been implemented into a finite-differences-scheme to compute the temperature distribution, the degree of crystallinity and the material data. Furthermore, it is possible to predict the resulting morphology. The investigations are accomplished by a comparison between measured and calculated values as well as studies of parameter variations.

Lesen Sie die deutsche Zusammenfassung auf Kunststoffe.de
Author
 Martin Moneke

Martin Moneke
Fachbereich Material- und Geowissenschaften
Technische Universität Darmstadt

Information

Free keywords: crystallization, crystallization kinetics, thermoplastic, pressure, temperature, injection moulding, simulation, material model, fibre-reinforced, polypropylene, poly(butylene terephthalate)
Institute / chair: Fachbereich Material- und Geowissenschaften der Technischen Universität Darmstadt
Language: German
Technical consultant for expert services: Prof. Dr.-Ing. H. Fueß (Betreuer), PD Dr. habil. I. Alig, Prof. Dr. H. E. Exner
Publication year: 2001
Provider: Wissenschaftlicher Arbeitskreis Kunststofftechnik (WAK) / Kunststoffe.de

Further Information

About the PhD Dissertation Data Base

WAK-Logo

In cooperation with the Wissenschaftlicher Arbeitskreis Kunststofftechnik (WAK), we provide free access to current dissertations in the field of plastics technology.

Further information and contact

WAK-Homepage