Flammability and thermal properties of vinyl ester resins-based composites with wood flour
Artykuł w czasopiśmie
MNiSW
100
Lista 2024
| Status: | |
| Autorzy: | Pączkowski Przemysław, Samujło Bronisław, Głogowska Karolina, Gawdzik Barbara |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2026 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 762 |
| Numer artykułu: | 180375 |
| Impact Factor: | 3,6 |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| This study investigates vinyl ester composites filled with spruce and fir wood flour (WF). A commercial bisphenol A-based vinyl ester resin (VER) was compared with a synthesized resin (VPE) obtained from an unsaturated polyester modified with glycidyl methacrylate. The proposed synthesis route is potentially more sustainable. Composites containing 2 and 5 wt.% WF were evaluated for thermal stability, thermomechanical behavior, and flammability. Thermogravimetric analysis showed lower thermal stability for VPE than VER, with T5% values of 323 and 346 °C. Increasing WF content to 5 wt.% further reduced T5% to 333 °C (VER) and 310 °C (VPE), while mass residue increased to ∼3.0–3.2%. Cone calorimetry showed reduced fire intensity with WF addition. Peak heat release rate decreased from 522 to 420 kW/m2 (VER) and from 561 to 443 kW/m2 (VPE), while total heat release decreased from 74 to 63 MJ/m2 and from 81 to 69 MJ/m2. Time to ignition decreased from 42 to 36 s (VER) and from 38 to 31 s (VPE). Overall, WF increases ignition tendency but reduces heat release due to char formation and barrier effects. VPE shows comparable fire performance to VER while offering a more sustainable synthesis route. |
