On the use of olive leaf powder to improve the performance of water-blown rigid polyurethane foam composites
Küçük Resim Yok
Tarih
2025
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Sage Publications Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Nowadays, polyurethane (PU) foams were preferred in a broad extent of applications particularly due to their lowest thermal conductivity values satisfying the demand for energy efficiency while their use as natural filler added foam composites can reduce the polymer content allowing a more environmentally friendly production. The purpose of this work was to research the impact of olive leaf powder of various particle sizes and weight ratios on the microstructure, thermal, and mechanical properties of rigid polyurethane foam composites. All results exhibited optimum mechanical, thermal, and microstructure properties for the finest particle sized and 3 wt% added foam composites. This foam composite demonstrated an enhancement by 54%, 41%, and 61% for the tensile strength, elongation at break, and compression strength values, respectively. The thermal degradation temperature of the foam composites was also improved in correlation with the reduction of the glass transition temperature of the soft segments while the glass transition of the hard segments increased. Concerning the thermal conductivity results, the highest reduction by 11% was observed for the finest particles filled at 5 wt%, compared to the pure rigid PU foam, in correlation with the cell size showing a maximum reduction by 18% for the same composite.
Açıklama
Anahtar Kelimeler
Natural filler, olive leaf powder, rigid polyurethane foam, thermal insulation, mechanical properties
Kaynak
Journal of Cellular Plastics
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
61
Sayı
4
