The photothermal stability of CNFs/ZnAl-LDHs composited films: Influence of the crystal morphology of ZnAl-LDHs.
Cellulose nanofibers films
Crystal morphology
Photothermal stability
Zn-Al-layered double hydroxides
Journal
Carbohydrate polymers
ISSN: 1879-1344
Titre abrégé: Carbohydr Polym
Pays: England
ID NLM: 8307156
Informations de publication
Date de publication:
01 Jul 2021
01 Jul 2021
Historique:
received:
08
12
2020
revised:
24
02
2021
accepted:
18
03
2021
entrez:
16
4
2021
pubmed:
17
4
2021
medline:
23
9
2021
Statut:
ppublish
Résumé
The existence of hydroxyl and carboxyl groups makes the photothermal stability of cellulose nanofibers (CNFs) poor and thus limits its scale application. This problem could be solved by doping layered double hydroxides (LDHs) nanopowders with opposite charge on the surface of CNFs. This work mainly focused on investigation of the influence of the crystal morphology of the inorganic ultraviolet shielding agent (i.e. ZnAl-LDHs) on the thermal stability of CNFs/ZnAl-LDHs composited films. The results showed that the morphology of LDHs was positively correlated with the photothermal stability of CNFs-based films. Specially, the ZnAl-LDHs with uniform crystal morphology could be prepared by controlling the molar ratio of Zn/Al at 3:1 and thus enhance the photothermal stability of CNFs-based films without any serious light transmittance deteriorating after doping. This work provided a practical and effective way for preparation of photothermal-stable CNFs-based transparent films for industrial application in the fields of photonics and electronics.
Identifiants
pubmed: 33858576
pii: S0144-8617(21)00368-4
doi: 10.1016/j.carbpol.2021.117981
pii:
doi:
Substances chimiques
Hydroxides
0
Zinc Compounds
0
Cellulose
9004-34-6
Aluminum
CPD4NFA903
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
117981Informations de copyright
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