Thermal Behaviour of Oriented and Un-oriented Polymer Blends from Metallocene Polypropylene

Ryba, Jozef, Ujhelyiová, Anna and Krištofič, Michal Thermal Behaviour of Oriented and Un-oriented Polymer Blends from Metallocene Polypropylene Acta Chimica Slovaca, Vol.1, No. 1, 2008, 276-289

Document type: Článok z časopisu / Journal Article
Collection: Acta Chimica Slovaca  
 
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Author(s) Ryba, Jozef
Ujhelyiová, Anna
Krištofič, Michal
Title Thermal Behaviour of Oriented and Un-oriented Polymer Blends from Metallocene Polypropylene
Journal name Acta Chimica Slovaca
Publication date 2008
Year available 2008
Volume number 1
Issue number 1
ISBN 978-80-227-2957-4
Start page 276
End page 289
Total pages 14
Place of publication Bratislava
Publisher Slovak Technical University
Collection year 2008
Language english
Subject 250000 Chemical Sciences
250500 Macromolecular Chemistry
Abstract/Summary In this paper the effect of various polyethylenes (PE) as well as Ziegler-Natta polypropylene (ZNPP) on thermal behaviour of metallocene polypropylene (mPP) in the oriented and unoriented polymer blend fibres is presented. The DSC 7 apparatus (Perkin Elmer) for measurement of thermal properties of these fibres was used. The oriented and un-oriented mPP/PE blends and fibres are characterised by individual melting temperatures of both components with deviation of the basic thermal quantities in comparison with mPP and PE. The decrease of the total melting enthalpy of the blend indicates a partial compatibility of mPP and PE at a temperature above the melting point of the components at low concentration of PE. The mPP/ZNPP fibres are compatible polymer blends with one melting temperature in the range of melting temperature of mPP and ZNPP.
Keyword(s) polymer blend fibres and blends
metallocene and Ziegler-Natta polypropylene
low density polyethylene
thermal behaviour
 
 
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