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Extruded versus solvent cast blends of poly(vinyl alcohol-co-ethylene) and biopolymers isolated from municipal biowaste
- Source :
- Journal of Applied Polymer Science, Journal of Applied Polymer Science, Wiley, 2016, 133 (9), ⟨10.1002/app.43009⟩
- Publication Year :
- 2016
-
Abstract
- International audience; Water-soluble biopolymers (SBO) were isolated from the alkaline hydrolysate of two materials sampled from an urban waste treatment plant; that is, an anaerobic fermentation digestate and a compost. The digestate biopolymers contained more lipophilic and aliphatic C, and less acidic functional groups than the compost biopolymers. The SBO were blended with poly (vinyl alcohol-co-ethylene), hereinafter EVOH. The blends were extruded and characterized by FTIR spectroscopy, size exclusion chromatography (SEC)-multi angle static light scattering (MALS) analysis, and for their thermal, rheological, and mechanical properties. The blends behavior depended on the type of SBO and its relative content. Evidence was obtained for a condensation reaction occurring between the EVOH and SBO. The best results were obtained with the blends containing up to 10% SBO isolated from the biowaste anaerobic digestate. Compared with the neat EVOH, these blends exhibited lower melt viscosity and no significant or great difference in mechanical properties. The results on the extrudates, compared with those previously obtained on the same blends obtained by solvent casting, indicate that the blends properties depend strongly also on the processing technology.
- Subjects :
- Vinyl alcohol
CHIM/03 - CHIMICA GENERALE ED INORGANICA
Materials science
Polymers and Plastics
Matériaux
education
Size-exclusion chromatography
02 engineering and technology
010501 environmental sciences
01 natural sciences
Hydrolysate
Biomaterials
Biopolymers and renewable polymers
chemistry.chemical_compound
biocompatibility
[SDV.IDA]Life Sciences [q-bio]/Food engineering
biomaterials
biopolymers and renewable polymers
blends
extrusion
11. Sustainability
Materials Chemistry
Génie chimique
biopolymers and renewable polymer
Organic chemistry
[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
Static light scattering
Fourier transform infrared spectroscopy
Génie des procédés
0105 earth and related environmental sciences
Extrusion
biomaterial
technology, industry, and agriculture
food and beverages
General Chemistry
021001 nanoscience & nanotechnology
blend
6. Clean water
Surfaces, Coatings and Films
Solvent
Blends
chemistry
Chemical engineering
13. Climate action
Digestate
Biocompatibility
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 00218995 and 10974628
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Polymer Science, Journal of Applied Polymer Science, Wiley, 2016, 133 (9), ⟨10.1002/app.43009⟩
- Accession number :
- edsair.doi.dedup.....592043a144dd3d3ea4d35a3a2fe446c9