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Preparation and Characterization of Talc Filled Thermoplastic Polyurethane/Polypropylene Blends

The effect of the addition of talc on the morphology and thermal properties of blends of thermoplastic polyurethane (TPU) and polypropylene (PP) was investigated. The blends of TPU and PP are incompatible because of large differences in polarities between the nonpolar crystalline PP and polar TPU an... Full description

Contained in: Journal of Polymers Vol. 2014 (2014), p. 1-8
Journal Title: Journal of Polymers
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Links: Additional Link (dx.doi.org)
ISSN: 2314-6877
Additional Keywords: ELEKTRONENMIKROSKOPIE
HOMOGENITAET
INKORPORIERUNG
KALORIMETRIE
KRISTALLINITAETSGRAD
POLYMER
POLYPROPYLEN
STOFFGEMISCH
THERMOGRAVIMETRISCHE-ANALYSE
THERMOPLASTISCHES-POLYURETHAN
DOI: 10.1155/2014/289283
Notes: Copyright: Metadaten: TEMA, Copyright WTI-Frankfurt eG
Copyright: (C) Alle Rechte beim Herausgeber
Physical Description: 8 Seiten, 15 Quellen
ID (e.g. DOI, URN): 10.1155/2014/289283
PPN (Catalogue-ID): WTI056194897
Note: WTI TEMA DB
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520 |a The effect of the addition of talc on the morphology and thermal properties of blends of thermoplastic polyurethane (TPU) and polypropylene (PP) was investigated. The blends of TPU and PP are incompatible because of large differences in polarities between the nonpolar crystalline PP and polar TPU and high interfacial tensions. The interaction between TPU and PP can be improved by using talc as reinforcing filler. The morphology was observed by means of scanning electron microscopy (SEM). The thermal properties of the neat polymers and unfilled and talc filled TPU/PP blends were studied by using dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The addition of talc in TPU/PP blends improved miscibility in all investigated TPU/T/PP blends. The DSC results for talc filled TPU/PP blends show that the degree of crystallinity increased, which is due to the nucleating effect induced by talc particles. The reason for the increased storage modulus of blends with the incorporation of talc is due to the improved interface between polymers and filler. According to TGA results, the addition of talc enhanced thermal stability. The homogeneity of the talc filled TPU/PP blends is better than unfilled TPU/PP blends. 
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