Pla extrusion foaming behavior: Effects of varying isothermal melt crystallization kinetics

Mohammadreza Nofar, Alireza Tabatabaei, M. Reza Barzegari, Chul B. Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study investigated the effects of various isothermal-crystallization- kinetics on the extrusion foaming behavior of PLA-nanosilica and PLA-talc samples while using supercritical CO2 as the blowing agent. The results showed that various isothermal-crystallization-kinetics along the second extruder and die affected the PLA's foaming results differently. At the T criticai isothermal temperature, the fast growing crystals suddenly dropped the die pressure and caused a nonuniform foam structure whereas at T < TCritical, a larger number of nucleated crystals contributed to cell nucleation and the uniform foam morphology.

Original languageEnglish
Title of host publication71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013
PublisherSociety of Plastics Engineers
Pages1715-1719
Number of pages5
ISBN (Print)9781632665300
Publication statusPublished - 2013
Externally publishedYes
Event71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013 - Cincinnati, OH, United States
Duration: 22 Apr 201324 Apr 2013

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings
Volume2

Conference

Conference71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013
Country/TerritoryUnited States
CityCincinnati, OH
Period22/04/1324/04/13

Keywords

  • Crystallization kinetics
  • Extrusion foaming
  • Polylactide

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