Abstract
In the proposed work, new elastomeric bio-polyol based polyurethanes (bio-PUs) with specific mechanical properties were prepared by a one-shot process without the presence of a solvent. Commercial non-degradable polyether polyol derived from petrochemical feed stock was partly (in the amount of 1 mass %, 5 mass %, and 10 mass %) substituted by the biodegradable polyhydroxybutyrate (PHB). Morphology of elastomeric PU composites was evaluated by scanning electron microscopy and mechanical properties of the prepared samples were obtained by both tensile measurements and prediction via the Mooney-Rivlin equation. Electron microscopy proved that the prepared materials have the character of a particle filled composite material, where PHB particles are regular with their size of about 1–2 μm in diameter. Tensile measurements demonstrated that the Young’s modulus, tensile stress at break, and tensile strain at break of each sample increase with the increase of the volume fraction of the filler. From the measured stress-strain data, the first and the second term of the Mooney-Rivlin equation were calculated. The obtained constants were applied to recalculate the stress-strain curves. It was found that the Mooney-Rivlin equation corresponds well with the stress-strain behavior of the prepared specimens.
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© 2012 Institute of Chemistry, Slovak Academy of Sciences
Artikel in diesem Heft
- 5th Meeting on Chemistry & Life 2011
- Induction of Cryptococcus laurentii α-galactosidase
- Incorporation of β-(1,6)-linked glucooligosaccharides (pustulooligosaccharides) into plant cell wall structures
- Metal-metabolomics of microalga Chlorella sorokiniana growing in selenium- and iodine-enriched media
- Metabolomic approach to Alzheimer’s disease diagnosis based on mass spectrometry
- Seasonal changes of Rubisco content and activity in Fagus sylvatica and Picea abies affected by elevated CO2 concentration
- Identification and determination of relatedness of lactobacilli using different DNA amplification methods
- Production of Geotrichum candidum polygalacturonases via solid state fermentation on grape pomace
- Monitoring of yeast population isolated during spontaneous fermentation of Moravian wine
- Biodegradable polyhydroxybutyrate as a polyol for elastomeric polyurethanes
- Conformational changes in humic acids in aqueous solutions
- Preparation and properties of cementitious composites for geothermal applications
Artikel in diesem Heft
- 5th Meeting on Chemistry & Life 2011
- Induction of Cryptococcus laurentii α-galactosidase
- Incorporation of β-(1,6)-linked glucooligosaccharides (pustulooligosaccharides) into plant cell wall structures
- Metal-metabolomics of microalga Chlorella sorokiniana growing in selenium- and iodine-enriched media
- Metabolomic approach to Alzheimer’s disease diagnosis based on mass spectrometry
- Seasonal changes of Rubisco content and activity in Fagus sylvatica and Picea abies affected by elevated CO2 concentration
- Identification and determination of relatedness of lactobacilli using different DNA amplification methods
- Production of Geotrichum candidum polygalacturonases via solid state fermentation on grape pomace
- Monitoring of yeast population isolated during spontaneous fermentation of Moravian wine
- Biodegradable polyhydroxybutyrate as a polyol for elastomeric polyurethanes
- Conformational changes in humic acids in aqueous solutions
- Preparation and properties of cementitious composites for geothermal applications