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Electron beam radiation effects on properties and ecotoxicity of PHBV/PLA blends in presence of organo-modified montmorillonite
- Source :
- Polymer Degradation and Stability, Polymer Degradation and Stability, Elsevier, 2016, 132, pp.117-126. ⟨10.1016/j.polymdegradstab.2016.03.019⟩, Polymer Degradation and Stability, 2016, 132, pp.117-126. ⟨10.1016/j.polymdegradstab.2016.03.019⟩
- Publication Year :
- 2016
- Publisher :
- HAL CCSD, 2016.
-
Abstract
- International audience; The present article reports a study of oxidative degradation under eBeam irradiation of neat PHBV, neat PLA and PHBV/PLA blend (50/50 w/w) with and without Cloisite 30B (C30B) (3 wt%) at absorbed doses of 1 and 10 kGy. The changes in the chemical structure, the molecular weight, the thermal, mechanical and barrier properties as well as the morphology were evaluated. The data showed that eBeam irradiation of PHBV/PLA blend leads to oxidation reactions involving ester groups in both neat PLA and neat PHBV resulting in the formation of hydroperoxides groups. The presence of C30B in the polymer blend has no influence on the nature of the degradation process. However, the good dispersion of C30B nanoparticles provides more stability to the molar mass and the thermal, mechanical and barrier properties of PHBV/PLA blend. At absorbed dose of 10 kGy, the irradiated samples are completely safe. Furthermore, ecotoxicity testing of both non irradiated and irradiated samples clearly showed no toxicity
- Subjects :
- Materials science
eBeam irradiation and degradation
Polymers and Plastics
Cloisite 30B
Chemical structure
Nanoparticle
02 engineering and technology
010402 general chemistry
01 natural sciences
Redox
[SPI.MAT]Engineering Sciences [physics]/Materials
chemistry.chemical_compound
Polymer chemistry
Materials Chemistry
Irradiation
Molar mass
PHBV
technology, industry, and agriculture
polymer blend
021001 nanoscience & nanotechnology
Condensed Matter Physics
0104 chemical sciences
Montmorillonite
[CHIM.POLY]Chemical Sciences/Polymers
Chemical engineering
chemistry
Mechanics of Materials
PLA
Polymer blend
0210 nano-technology
Dispersion (chemistry)
Subjects
Details
- Language :
- English
- ISSN :
- 01413910 and 18732321
- Database :
- OpenAIRE
- Journal :
- Polymer Degradation and Stability, Polymer Degradation and Stability, Elsevier, 2016, 132, pp.117-126. ⟨10.1016/j.polymdegradstab.2016.03.019⟩, Polymer Degradation and Stability, 2016, 132, pp.117-126. ⟨10.1016/j.polymdegradstab.2016.03.019⟩
- Accession number :
- edsair.doi.dedup.....c0b22bae0973351ea65ad4448fa37792