Effect of polydopamine coating of cellulose nanocrystals on performance of PCL/PLA bio-nanocomposites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F23%3A00569363" target="_blank" >RIV/61389013:_____/23:00569363 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1996-1944/16/3/1087" target="_blank" >https://www.mdpi.com/1996-1944/16/3/1087</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma16031087" target="_blank" >10.3390/ma16031087</a>
Alternative languages
Result language
angličtina
Original language name
Effect of polydopamine coating of cellulose nanocrystals on performance of PCL/PLA bio-nanocomposites
Original language description
In bio-nanocomposites with a poly(lactic acid) (PLA)/poly(ε-caprolactone) (PCL) matrix with neat and polydopamine (PDA)-coated cellulose nanocrystals (CNCd), the use of different mixing protocols with masterbatches prepared by solution casting led to marked variation of localization, as well as reinforcing and structure-directing effects, of cellulose nanocrystals (CNC). The most balanced mechanical properties were found with an 80/20 PLA/PCL ratio, and complex PCL/CNC structures were formed. In the nanocomposites with a bicontinuous structure (60/40 and 40/60 PLA/PCL ratios), pre-blending the CNC and CNCd/PLA caused a marked increase in the continuity of mechanically stronger PLA and an improvement in related parameters of the system. On the other hand, improved continuity of the PCL phase when using a PCL masterbatch may lead to the reduction in or elimination of reinforcing effects. The PDA coating of CNC significantly changed its behavior. In particular, a higher affinity to PCL and ordering of PLA led to dissimilar structures and interface transformations, while also having antagonistic effects on mechanical properties. The negligible differences in bulk crystallinity indicate that alteration of mechanical properties may have originated from differences in crystallinity at the interface, also influenced by presence of CNC in this area. The complex effect of CNC on bio-nanocomposites, including the potential of PDA coating to increase thermal stability, is worthy of further study.n
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials
ISSN
1996-1944
e-ISSN
1996-1944
Volume of the periodical
16
Issue of the periodical within the volume
3
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
1087
UT code for WoS article
000930155800001
EID of the result in the Scopus database
2-s2.0-85147848597