Experimental assessment of dispersion failure of glass fiber reinforced plastics in a twin screw extruder

Kunihiro Hirata, H. Ishida, M. Hiragohri, Y. Nakayama, T. Kajiwara

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

To investigate the conditions necessary for glass fiber bundle dispersion in the polymer compounding process, we developed a method for experimentally quantifying dispersion failure in this study. We employed a co-rotating twin-screw extruder in our experiment and investigated the dependence of frequency of occurrence of dispersion failure on screw configurations (a forward kneading disk (FKD) and a backward mixing screw (BMS) with different screw configurations), throughput (Q), and screw speed (Ns). From our experiments, we found that increasing the production rate promotes the occurrence of dispersion failure when a FKD is used. Dispersion failure is markedly suppressed when a BMS is used. We thus found that the production rate could be increased by using a BMS with a large length-to-diameter (L/D) ratio.

Original languageEnglish
Pages (from-to)368-375
Number of pages8
JournalInternational Polymer Processing
Volume28
Issue number4
DOIs
Publication statusPublished - Aug 22 2013

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Industrial and Manufacturing Engineering
  • Materials Chemistry

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