English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

This study dealt with operating windows and scale-up rules of a compounding twin screw extruder for polypropylene (PP)/multi-walled carbon nanotubes (MWCNT) composites with required conductivity. In this study we showed that the experimentally obtained boundary line separating either conductive or non-conductive region is essentially linear, and thus the operating windows, in which the PP/MWCNT composite is consistently conductive with statistically 95% reliability level, can be drawn as a triangle. The use of this triangle rule of the operating windows to achieve required volume resistivity was proposed. With similarity of the length and diameter ratio (L/D) and screw configuration between small (laboratory-scale) and large (production-scale)) extruders, our investigation revealed that the most effective scale-up factors for the volume resistivity are (D large /D small ) 3  for the throughput, and (D small /D large ) for the screw speed as a new scale-up rule generally valid for any machine size.

Triangle Rule for Operating Windows and Scale-up Criteria for Volume Resistivity of PP/Carbon Nanotubes Composites