@inproceedings{ac8ab1e114a445bbb3eacad9df3816e0,
title = "Visualization of polypropylene crystallization in foam extrusion process",
abstract = "In this study, the crystallization of polypropylene (PP) in the foam extrusion process in the presence and absence of CO2 was investigated by in-situ visualization. The results showed that the plasticization effect of CO2 suppressed the crystallization temperature of PP by -15°C during the extrusion process. Moreover, the CO2 molecules hindered the effects of the flow induced crystallization. Visualization results confirmed that crystallization occurs within the die which affects the foaming behaviors of PP. However, inducing the crystallinity more than a critical value decreases the foam expansion ratio due to the increased stiffness of the matrix.",
author = "Alireza Tabatabaei and Reza Barzegari and Mohammadreza Nofar and Park, {Chul B.}",
year = "2013",
language = "English",
isbn = "9781632665300",
series = "Annual Technical Conference - ANTEC, Conference Proceedings",
publisher = "Society of Plastics Engineers",
pages = "1703--1707",
booktitle = "71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013",
address = "United States",
note = "71st Annual Technical Conference of the Society of Plastics Engineers 2013, ANTEC 2013 ; Conference date: 22-04-2013 Through 24-04-2013",
}