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Nucleating activity of the quinacridone and phthalocyanine pigments in polypropylene crystallization

✍ Scribed by Jan Broda

Book ID
101578336
Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
257 KB
Volume
90
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

The nucleating ability of two organic pigments, quinacridone and phthalocyanine, in nonisothermal polypropylene (PP) crystallization was investigated. The investigations were carried out using DSC and polarizing microscopy. The efficiency of pigments in the nucleation process was determined in a simple test comparing the crystallization temperature of the PP‐containing pigments with respect to the pure polymer. Both pigments revealed good nucleating activity. In the presence of pigments the increment of the crystallization temperature and the increase of nucleation rate were observed. The nucleating efficiency of pigments was confirmed in investigations of the obtained structure. The nucleating activity of pigments was explained by their features fulfilling several requirements for good nucleating agents. Β© 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3957–3964, 2003

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