Back to Search
Start Over
Recyclability assessment of poly(3-hydroxybutyrate- co -3-hydroxyvalerate)/poly(butylene succinate) blends: Combined influence of sepiolite and compatibilizer
- Source :
- Polymer Degradation and Stability, Polymer Degradation and Stability, Elsevier, 2017, 142, pp.234-243. ⟨10.1016/j.polymdegradstab.2017.07.014⟩
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- International audience; Blends of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and poly (butylene succinate) (PBS) (50:50 w/w) were prepared by melt mixing. 5 wt% of compatibilizing agent, obtained by grafting of maleic anhydride onto PHBV, was used to improve the miscibility between the blend components. The influence of the presence of both sepiolite and compatibilizer was studied by evaluating the effect of repeated extrusion cycles (up to 6) on the morphology and the functional properties of materials. Changes in thermal, morphological, rheological and mechanical properties were investigated. All the results showed that PHBV is the more sensitive component towards recycling due to thermomechanical degradation, but PBS as well as sepiolite and compatibilizer play a stabilizing role on PHBV due to improved morphology. The mechanical characteristics measured at different scales remain more or less constant compared to the initial ones revealing the preservation of the mechanical properties of the different samples after reprocessing. This paper highlights a synergistic effect induced by the presence of both compatibilizer and sepiolite leading to an improved recyclability of the resulting materials compared to neat polymers. (C) 2017 Elsevier Ltd. All rights reserved.
- Subjects :
- Bionanocomposites
Materials science
Polymers and Plastics
Sepiolite
02 engineering and technology
010402 general chemistry
01 natural sciences
Miscibility
[SPI]Engineering Sciences [physics]
chemistry.chemical_compound
Rheology
Materials Chemistry
Composite material
PBS
chemistry.chemical_classification
PHBV
Maleic anhydride
Polymer
021001 nanoscience & nanotechnology
Condensed Matter Physics
Grafting
0104 chemical sciences
Polybutylene succinate
Compatibility and recycling
chemistry
Mechanics of Materials
Extrusion
0210 nano-technology
Subjects
Details
- ISSN :
- 01413910 and 18732321
- Volume :
- 142
- Database :
- OpenAIRE
- Journal :
- Polymer Degradation and Stability
- Accession number :
- edsair.doi.dedup.....eecf8c97b90d36d88b9d765afce3d349