Recyclable polyurethane/nanoclay films
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F19%3A00509155" target="_blank" >RIV/61389013:_____/19:00509155 - isvavai.cz</a>
Výsledek na webu
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/pc.25269" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/pc.25269</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pc.25269" target="_blank" >10.1002/pc.25269</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Recyclable polyurethane/nanoclay films
Popis výsledku v původním jazyce
A series of polyurethane (PU)/clay nanocomposite films was prepared by adding natural bentonite Cloisite® Na+ powders to waterborne polyurethane dispersions (PUDs) followed by a slow water evaporation. The nanoclay content in the films varied from 0 to 5 wt%. The functional properties of materials with low nanoclay loading (up to 1 wt%) resemble features of films prepared without any nanoclay. Compared to unfilled PU, the films with 3 and 5 wt% nanoclay concentrations exhibited slightly deteriorated properties. This phenomenon can be caused by the fact that the polymer–filler interactions are negligible. Gas transport properties are the exception: nanoclay was found to be an efficient barrier component for the permeability of industrially important gases (O2, N2, H2, CO2, and CH4). All films feature thermoplastic characteristics and thermal stabilities up to at least 200°C. Because PUDs are solely composed of linear chains, the possibility of preparing recyclable materials was tested. While PU can be re‐used after dissolving in acetone and re‐dispersing in water, the re‐use of nanoclay is not recommended. Preliminary accelerated in vivo tests performed in 20% H2O2 and 0.1M CoCl2 at 37°C detected substantial susceptibility to biodegradation, especially for films containing 5 wt% nanoclay.
Název v anglickém jazyce
Recyclable polyurethane/nanoclay films
Popis výsledku anglicky
A series of polyurethane (PU)/clay nanocomposite films was prepared by adding natural bentonite Cloisite® Na+ powders to waterborne polyurethane dispersions (PUDs) followed by a slow water evaporation. The nanoclay content in the films varied from 0 to 5 wt%. The functional properties of materials with low nanoclay loading (up to 1 wt%) resemble features of films prepared without any nanoclay. Compared to unfilled PU, the films with 3 and 5 wt% nanoclay concentrations exhibited slightly deteriorated properties. This phenomenon can be caused by the fact that the polymer–filler interactions are negligible. Gas transport properties are the exception: nanoclay was found to be an efficient barrier component for the permeability of industrially important gases (O2, N2, H2, CO2, and CH4). All films feature thermoplastic characteristics and thermal stabilities up to at least 200°C. Because PUDs are solely composed of linear chains, the possibility of preparing recyclable materials was tested. While PU can be re‐used after dissolving in acetone and re‐dispersing in water, the re‐use of nanoclay is not recommended. Preliminary accelerated in vivo tests performed in 20% H2O2 and 0.1M CoCl2 at 37°C detected substantial susceptibility to biodegradation, especially for films containing 5 wt% nanoclay.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10404 - Polymer science
Návaznosti výsledku
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
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Polymer Composites
ISSN
0272-8397
e-ISSN
—
Svazek periodika
40
Číslo periodika v rámci svazku
10
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
14
Strana od-do
4079-4092
Kód UT WoS článku
000488599100029
EID výsledku v databázi Scopus
2-s2.0-85064528022