Publications by authors named "M Poletto"
Technical lignins are globally available and a sustainable feedstock. The unique properties of technical lignins suggest that these materials should have several industrial applications. The main proposal of this study is to evaluate the relationship between the structure and properties of two technical lignins.
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- - The study focuses on creating composites from polypropylene and ammonium phosphate, incorporating lignosulfonate and zirconium phosphate to improve their properties.
- - Various composite formulations were synthesized and analyzed for their flame retardancy, thermal behavior, and mechanical strength, achieving a V2 UL-94 rating.
- - The results showed that the composite with ammonium phosphate extinguished flames significantly faster and exhibited better rigidity and flame resistance compared to pure polypropylene, while using zirconium-modified lignosulfonate offered environmental benefits despite slightly reduced mechanical properties.
Wood is a versatile material extensively utilized across industries due to its low density, favorable mechanical properties, and environmental benefits. However, despite considerable research, the diversity in species with varying compositions and properties remains insufficiently explored, particularly for native woods. A deeper understanding of these differences is crucial for optimizing their industrial applications.
View Article and Find Full Text PDFThis study aimed to investigate the effect of mitochondria-targeted antioxidants (Mitoquinone, MitoQ) on the quality of frozen-thawed stallion semen. Semen samples collected from three fertile stallions aged 10 - 13 years, were filtered, centrifuged in a skimmed milk-based extender, and diluted to a final concentration of 50 × 106 sperm/mL in freezing medium. Diluted semen was divided into five experimental groups supplemented with MitoQ at concentrations of 0 (control), 25, 50, 100, and 200 nM and then subjected to freezing after cooling and equilibration.
View Article and Find Full Text PDFThermal Stability of Highly Filled Cellulosic Biocomposites Based on Ethylene-Vinyl Acetate Copolymer.
Polymers (Basel)
July 2024
The effect of plant-based fillers on thermal resistance in highly filled biocomposites based on ethylene-vinyl acetate copolymer (EVA) was studied. Wood flour and microcrystalline cellulose were used as fillers. It was shown that the introduction of microcrystalline cellulose into EVA did not affect the thermal stability of the polymer matrix.
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