Thermoplastic starch composites with TiO2 particles: preparation, morphology, rheology and mechanical properties

Ostafinska, Aleksandra; Mikešová, Jana; Krejčíková, Sabina; Nevoralová, Martina; Šturcová, Adriana; Zhigunov, Alexander; Michálková, Danuše; Šlouf, Miroslav

doi:https://dx.doi.org/10.1016/j.ijbiomac.2017.03.104

Počet záznamů: 1

Thermoplastic starch composites with TiO2 particles: preparation, morphology, rheology and mechanical properties

1.

SYSNO ASEP	0473601
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Thermoplastic starch composites with TiO2 particles: preparation, morphology, rheology and mechanical properties
Tvůrce(i)	Ostafinska, Aleksandra (UMCH-V)_{RID, ORCID} Mikešová, Jana (UMCH-V) Krejčíková, Sabina (UMCH-V) Nevoralová, Martina (UMCH-V)_{RID, ORCID} Šturcová, Adriana (UMCH-V)_RID Zhigunov, Alexander (UMCH-V)_{RID, ORCID} Michálková, Danuše (UMCH-V) Šlouf, Miroslav (UMCH-V)_{RID, ORCID}
Zdroj.dok.	International Journal of Biological Macromolecules. - : Elsevier - ISSN 0141-8130 Roč. 101, August (2017), s. 273-282
Poč.str.	10 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	thermoplastic starch ; titanium dioxide particles ; morphology
Vědní obor RIV	JI - Kompozitní materiály
Obor OECD	Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
CEP	GA14-17921S GA ČR - Grantová agentura ČR
Institucionální podpora	UMCH-V - RVO:61389013
UT WOS	000404491300030
EID SCOPUS	85016152586
DOI	10.1016/j.ijbiomac.2017.03.104
Anotace	Composites of thermoplastic starch (TPS) with titanium dioxide particles (mTiO2, average size 0.1 mu m) with very homogeneous matrix and well-dispersed filler were prepared by a two-step method, including solution casting (SC) followed by melt mixing (MM). Light and scanning electron microscopy confirmed that only the two-step procedure (SC + MM) resulted in ideally homogeneous TPS/mTiO2 systems. The composites prepared by single-step MM contained non-plasticized starch granules and the composites prepared by single-step SC suffered from mTiO2 agglomeration. Dynamic mechanical measurements showed an increase modulus with increasing filler concentration. In TPS containing 3 wt.% of mTiO2 the stiffness was enhanced by >40%. Further experiments revealed that the recommended addition of chitosan or the exchange of mTiO2 for anisometric titanate nanotubes with high aspect ratio did not improve the properties of the composites.
Pracoviště	Ústav makromolekulární chemie
Kontakt	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Rok sběru	2018

Počet záznamů: 1