Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 28: Issue 1
Influence of nucleating agents on crystallization of polypropylene
I. Talc as a nucleating agent
Authors:
J. Menczel Technical University of Budapest Department of Plastics and Rubber 1521 Budapest Hungary 1521 Budapest Hungary

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J. Varga Technical University of Budapest Department of Plastics and Rubber 1521 Budapest Hungary 1521 Budapest Hungary

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Pages:
161–174
Online Publication Date:
17 Feb 2006
Publication Date:
17 Sep 1983
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02105288
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The effect of talc as an artificial nucleating agent in different concentrations on the crystallization of polypropylene (PP) has been studied. It is considered that the induction time should be taken into account in the Avrami evaluation of isothermal crystallization. From a study of nucleated PP samples prepared in different ways, it has been proved that the nucleating effect of talc slightly decreases with increasing time spent by the sample in the state of the polymer melt. It has been shown that crystallization of non-nucleated polypropylene strongly depends on the material of the sample pan. It has been established that dilatometry cannot be used to study the isothermal crystallization of nucleated polypropylene, since microcracks appear in the sample, partly compensating the volume decrease due to the crystallization process.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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