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Thermal Properties of Functionalised Metallocene Polypropylene Fibres

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Abstract:

In this contribution blend metallocene polypropylene (mPP) fibres modified with 4, 8, 12 wt.% of copolyamide A and 4, 8, 12 wt.% of compatibiliser L were prepared. Copolyamide A consists of 85 wt.% of e-caprolactam and 15 wt.% of nylon salt of adipic acid and diethylenetriamine. Compatibiliser L is low molecular isotactic polypropylene grafted with maleineanhydride. Thermal properties of the components, blends and modified mPP fibres were evaluated. Fibres modified with both copolyamide A and compatibilizer were successfully spun and drawn, with the opposite being the case for mPP fibres modified only with copolyamide A without compatibiliser L, which were not spun, confirming the positive role of compatibiliser L. The modified fibres conserve their thermal characteristics - melting temperature, melting enthalpy and entropy in the whole interval of both additive concentrations
evaluated. The positive influence of the compatibiliser was found from the point of melting enthalpy and melting entropy.

Tags:

metallocene polypropylene, copolyamide, compatibilizer, modification, thermal properties, modified polypropylene fibres

Citation:

Krištofič M, Ujhelyiová A, Ryba J. Thermal Properties of Functionalised Metallocene Polypropylene Fibres. FIBRES & TEXTILES in Eastern Europe 2012; 20, 4(93): 24-29.

Published in issue no 4 (93) / 2012, pages 24–29.

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