| Full text | |
| Author(s): |
de Souza, Alana Gabrieli
;
de Lima, Giovanni Floriano
;
Rangari, Vijaya Kumar
;
dos Santos Rosa, Derval
Total Authors: 4
|
| Document type: | Journal article |
| Source: | Polymer Composites; v. 41, n. 10, p. 13-pg., 2020-08-06. |
| Abstract | |
In the present work, nanocellulose (NC) has been surface-pegylated and further employed as reinforcement in poly(butylene adipate-co-terephthalate) (PBAT) through the melting process. The nanocomposites showed a significant stiffness increase, especially the 2% pegylated-NC, due to the good interaction between the modified NC and the matrix. Also the pegylation improved the filler-PBAT adhesion, which resulted in higher thermal stability and low crystallinity. Raman spectroscopy confirmed the strong interaction between the 2% pegylated-NC, morphological analysis confirmed the filler adhesion. The water absorption indicated that the pegylated-NC has a low tendency to absorb water, which improves its applicability, for example, as a packaging material. This unique study is of great value for the future design of pegylated-NC biodegradable nanocomposites with tailored properties. (AU) | |
| FAPESP's process: | 18/25239-0 - Evaluation of dispersion of modified cellulose nanostructures in bionanocomposites |
| Grantee: | Derval dos Santos Rosa |
| Support Opportunities: | Scholarships abroad - Research |
| FAPESP's process: | 18/11277-7 - PBAT films with cellulose nanostructures treated with essential oils encapsulated for active packaging |
| Grantee: | Derval dos Santos Rosa |
| Support Opportunities: | Regular Research Grants |