Language selection

Government of Canada / Gouvernement du Canada

Search

Development of polymer blend morphology during compounding in a twin-screw extruder. Part III: Experimental procedure and preliminary results

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1002/pen.760322407
AuthorSearch for: ; Search for: ; Search for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada. NRC Industrial Materials Institute
FormatText, Article
Abstract
Currently, selection of screw configurations as well as the operating conditions for compounding polymer blends with desired morphology in a co‐rotating twinscrew extruder is an art based on experience. In this paper a quenching section of a twin‐screw extruder is described. The section may replace any segment of the extruder barrel. It allows, on the one hand, a regular operation of the machine, and on the other, a rapid quenching and removal of blend specimens for morphology analysis from any place along the extruder barrel and at any time of the blending. The experimental observation of development during compounding of polymer blends enables verification and improvement of the theoretical model, aimed at predicting and controlling the size and polydispersity of the minor phase. Development of the predictive model for blend morphology will provide a valuable guide to the polymer processing industry. The preliminary data were collected using polystyrene/high density polyethylene (PS/HDPE) blends at low concentration of the dispersed phase, 5 wt% of either PS or HDPE. It was observed that the viscosity ratio, blend composition, screw configuration, temperature, throughput, and screw speed significantly influence the blend morphology.
Publication date
PublisherWiley
In
  • Polymer Engineering and Science 32, no. 24: 1846–1856.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 33766
NRC-IMI92TC-32600-1331-G
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifier204f5948-8c77-4029-b0c2-e9502bfb1d4f
Record created2020-05-26
Record modified2020-05-26
Date modified: