Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Novel biodegradable composites based on PHBV: Effect of nanocellulose incorporation on the non-isothermal crystallization kinetic and structural parameters

Full text
Author(s):
Benini, Kelly C. C. C. [1] ; Ornaghi Junior, Heitor L. [2] ; Bianchi, Otavio [2] ; de Magalhaes, Welington Ferreira [3] ; Henriques, Fernando Fulgencio [3] ; Windmoller, Dario [3] ; Voorwald, Herman J. C. [1] ; Cioffi, Maria O. H. [1]
Total Authors: 8
Affiliation:
[1] UNESP Sao Paulo State Univ, Dept Mat & Technol, Fatigue & Aeronaut Mat Res Grp, BR-12516410 Guaratingueta, SP - Brazil
[2] UCS, Mat Sci & Engn Grad Program PGMAT, BR-95070490 Caxias Do Sul, RS - Brazil
[3] Univ Fed Minas Gerais, Positron Annhilat Spect Lab LEAP, BR-31270901 Belo Horizonte, MG - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Polymer Composites; v. 40, n. 8, p. 3156-3165, AUG 2019.
Web of Science Citations: 2
Abstract

This study presents the non-isothermal behavior of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) biodegradable films with 1-5 wt% of cellulose nanoparticles (CNs) manufactured by solution casting using N,N-dimethylformide and chloroform as the solvents. X-ray diffraction and scanning electron microscopy with field emission gun were performed for CNs in order to determine its morphology and crystalline properties. The effect of non-isothermal crystallization of PHBV and its nanocomposites was studied using differential scanning calorimetry technique. The incorporation of CNs increases the crystallization rate with up to 3 wt%. Structural parameters were studied using positron annihilation lifetime spectroscopy and small-angle X-ray scattering. The free volume does not change upon CNs addition in spite of form less perfect crystals and increase the lamellar thickness. POLYM. COMPOS., 40:3156-3165, 2019. (c) 2018 Society of Plastics Engineers (AU)

FAPESP's process: 11/14153-8 - Nanocellulose/PHBV composites: microfibilated mats by electrospinning
Grantee:Kelly Cristina Coelho de Carvalho Benini
Support Opportunities: Scholarships in Brazil - Doctorate