Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163012 - 163012
Published: April 1, 2025
Language: Английский
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163012 - 163012
Published: April 1, 2025
Language: Английский
Materials Science and Engineering R Reports, Journal Year: 2024, Volume and Issue: 160, P. 100830 - 100830
Published: July 16, 2024
Language: Английский
Citations
6Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 359 - 359
Published: Jan. 28, 2025
The superior mechanical qualities of polyurethane have garnered increasing attention for its application in modifying asphalt mixtures. However, needs to use polyols cure, and need be produced by petroleum refining. As we all know, is a non-renewable energy source. In order reduce oil consumption conform the trend green economy, lignin chitin were used instead as curing agents. this paper, biological polyurethane-modified mixture (BPA-16) was designed compared with (PA-16) matrix (MA-16). viscoelastic characteristics three mixtures evaluated using dynamic modulus, static creep tests. interplay between modulus frequency examined, along variations correlation modulus. behavior ultimately examined uniaxial load test. findings indicate that BPA-16 exceeds those PA-16 MA-16 8.7% 30.4% at 25 Hz −20 °C, respectively. At 50 phase angle decreases 26.3% relative MA-16. Lignin chitin, when utilized agents place polyol, can enhance stability low temperatures diminish their temperature sensitivity. A bio-based also maintain better elastic properties wider range. −20–20 moduli BPA-16, are linear, they converted formula different frequencies. failure stages PA-16, not observed during 3600 s duration, exhibiting least strain, indicating resistance permanent deformation PU-modified mixes.
Language: Английский
Citations
0Construction and Building Materials, Journal Year: 2025, Volume and Issue: 473, P. 141023 - 141023
Published: March 31, 2025
Language: Английский
Citations
0Construction and Building Materials, Journal Year: 2025, Volume and Issue: 475, P. 141117 - 141117
Published: April 11, 2025
Language: Английский
Citations
0Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown
Published: April 22, 2025
Abstract Vitrimers are covalently crosslinked networks with dynamic bond exchange, where their behavior is typically regulated by adjusting network structures or incorporating fillers. This study introduces graphite flakes (GFs) into sulfur‐containing. to investigate effects on mechanical properties, stress relaxation, and thermal conductivity. The results demonstrate that adding 10 wt.% GFs increases tensile strength 4.37% compared pure epoxy vitrimer, while higher filler content reduces toughness decelerates relaxation. At 160 °C, the characteristic relaxation time rises from 15.35 s (pure vitrimer) 108.85 (40 wt% composite). Arrhenius prefactor ( τ₀ ) decreases loading, whereas activation energy E a remains nearly unaffected. Additionally, 40 enhance diffusivity 110.17% due oriented phonon transport channels. Chemical recycling via DTT solution achieves complete matrix degradation recovery without damaging GFs. provided valuable insights for optimizing vitrimer composites, particularly in enhancing conductivity modulating properties.
Language: Английский
Citations
0Road Materials and Pavement Design, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 58
Published: April 3, 2025
Language: Английский
Citations
0Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163012 - 163012
Published: April 1, 2025
Language: Английский
Citations
0