Improved thermal insulation and compressive property of bimodal poly (lactic acid)/cellulose nanocomposite foams.
Carbohydr Polym
; 302: 120419, 2023 Feb 15.
Article
en En
| MEDLINE
| ID: mdl-36604081
ABSTRACT
In this work, an innovative PLA/CNF nanocomposite foam with a bimodal cell structure is prepared by a simple one-step depressurization foaming process using only supercritical carbon dioxide (ScCO2) as the foaming agent. Only at a specific foaming temperature, PLA/CNF nanocomposites foam with a bimodal cell structure could be obtained. According to the different crystallization kinetics and nucleation efficiency of samples, it was inferred that the crystallization rate and phase interface would affect the cell structure. The prepared PLA/CNF nanocomposite foam with a bimodal cell structure had an expansion ratio as high as 20 times and thermal conductivity of 0.041 w m-1 k-1, which exhibited low density and excellent thermal-insulation property. Meanwhile, the PLA/CNF nanocomposite foam exhibited excellent compression performance due to the presence of CNFs, which showed promising application in packaging and construction materials.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Celulosa
/
Nanocompuestos
Idioma:
En
Revista:
Carbohydr Polym
Año:
2023
Tipo del documento:
Article
País de afiliación:
China