Naslov
Compatibilisation of thermoplastic polyurethane and polypropylene by talc

Autori
Govorčin Bajsić, Emi ; Leskovac, Mirela ; Rek, Vesna

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of the Fourth International Conference on Polymer Modification, Degradation and Stabilization : MoDeSt 2006 / López, Daniel ; Fernández-Berridi, M José - Madrid : Instituto de Ciencia y Tecnología de Polímeros ; CSIC, 2006, 183-183

Skup
Fourth International Conference on Polymer Modification, Degradation and Stabilization : MoDeSt 2006

Mjesto i datum
Donostia-San Sebastián, Španjolska, 10.09.2006. - 14.09.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
thermoplastic polyurethane; polypropylene; talc; polymer blends; compatibilisation
(thermoplastic polyurethane; polypropylene; talc; polymer blends; compatibilization; thermal properties)

Sažetak
The incorporation of mineral fillers in thermoplastics reduces interfacial tension, refines blends morphology and therefore leads to an improvement of processing and application properties of the final material. It is well known that mineral fillers improve the rigidity of the polymers, but they also decrease ductility and toughness. The factors influencing the properties of these systems, such as the nature of the polymer, the mineral particle size and distribution, and the dispersion and orientation of the particles in the polymer bulk, are well established. The aim of this study was to investigate the compatibilizing effect of talc on the morphology, thermal and mechanical properties of TPU/PP blends. The compatibility, thermal and mechanical properties of pure components (TPU, PP) and their blends were investigated by dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC) and tensile strength test. The results indicated that a higher crystallization rate was obtained for TPU/PP blends when the talc is added, which can be attributed to the nucleating effect induced in PP by talc particles. The nucleating effect of the talc leads to a faster crystallization which results in an amorphous phase with a bigger mobility (lower Tg). The better compatibility between TPU and PP was obtained by talc.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA