The effect of TiO2 particles on thermal properties of polycarbonate-based polyurethane nanocomposite films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F19%3A00510800" target="_blank" >RIV/61389013:_____/19:00510800 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs10973-019-08750-3" target="_blank" >https://link.springer.com/article/10.1007%2Fs10973-019-08750-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-019-08750-3" target="_blank" >10.1007/s10973-019-08750-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of TiO2 particles on thermal properties of polycarbonate-based polyurethane nanocomposite films

Popis výsledku v původním jazyce

In this work, aliphatic starting reactants were used to prepare a series of polycarbonate-based polyurethane (PC-PU) nanocomposite films with a low amount of titanium dioxide (TiO2) nanoparticles (0.5, 1.0 and 2.0%) by one-step technique. The influence of nanoparticles on the structure and hydrogen bonding, as well as the microphase and topography of the obtained hybrid materials was followed by Fourier transform infrared spectroscopy, Atomic force microscopy and Scanning electron microscopy coupled with energy-dispersive X-ray Spectroscopy, respectively. Thermogravimetry was performed to study the effect of TiO2 on the thermal stability and the decomposition pattern of the obtained PC-PU films. The impact of TiO2 on the glass transition temperature, relaxation of soft domains as well as the melting of hard segments was determined by modulated differential scanning calorimetry. The significant enhancement of thermal stability and degradation of prepared hybrid materials were achieved, due to increased hydrogen bonding by addition of TiO2. The glass transition temperatures of all PC-PU films were found independent on the titanium dioxide mass fraction. The starting of physical cross-linking disruption of the obtained hybrids was registered at significantly higher temperatures, as a consequence of the achieved interaction between uniformly dispersed TiO2 nanoparticles and hard phase.

Název v anglickém jazyce

The effect of TiO2 particles on thermal properties of polycarbonate-based polyurethane nanocomposite films

Popis výsledku anglicky

In this work, aliphatic starting reactants were used to prepare a series of polycarbonate-based polyurethane (PC-PU) nanocomposite films with a low amount of titanium dioxide (TiO2) nanoparticles (0.5, 1.0 and 2.0%) by one-step technique. The influence of nanoparticles on the structure and hydrogen bonding, as well as the microphase and topography of the obtained hybrid materials was followed by Fourier transform infrared spectroscopy, Atomic force microscopy and Scanning electron microscopy coupled with energy-dispersive X-ray Spectroscopy, respectively. Thermogravimetry was performed to study the effect of TiO2 on the thermal stability and the decomposition pattern of the obtained PC-PU films. The impact of TiO2 on the glass transition temperature, relaxation of soft domains as well as the melting of hard segments was determined by modulated differential scanning calorimetry. The significant enhancement of thermal stability and degradation of prepared hybrid materials were achieved, due to increased hydrogen bonding by addition of TiO2. The glass transition temperatures of all PC-PU films were found independent on the titanium dioxide mass fraction. The starting of physical cross-linking disruption of the obtained hybrids was registered at significantly higher temperatures, as a consequence of the achieved interaction between uniformly dispersed TiO2 nanoparticles and hard phase.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/GA18-03932S" target="_blank" >GA18-03932S: Polyuretany s řízeně zabudovanými anorganickými/organickými bloky a regulovatelnou hydrolytickou stabilitou</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

—

Svazek periodika

138

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

13

Strana od-do

2043-2055

Kód UT WoS článku

000494046600021

EID výsledku v databázi Scopus

2-s2.0-85072228483