Influences of turkey feather fiber loading on significant characteristics of rigid polyurethane foam: Thermal degradation, heat insulation, acoustic performance, air permeability and cellular structure
Yükleniyor...
Dosyalar
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elseiver Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This comprehensive study delves into the preparation and detailed characterization of rigid polyurethane foams (RPUFs) filled with varying content levels (3, 6, 9, 12 and 15 wt%) of turkey feather fibers (TFFs) fabricated from the waste feathers. TFFs-loaded RPUFs were successfully produced via one-shut free-rise method in a closed mold. The obtained foam samples were evaluated by the examination of their chemical structure (FTIR analysis), thermal degradation behavior (TGA analysis), insulating performance (thermal conductivity and acoustic tests), application potential (air permeability test) and cellular morphology (SEM). TGA analysis revealed that the incorporating of TFFs at low percentage provided the thermal stability to the foams since the strong chemical interactions were formed between TFFs and RPUF matrix, however, this effect was lost at higher contents. 17% improvement (from 0.0352 to 0.0291 W/m.K.) in thermal insulating performance was recorded at the foam sample containing 3% TFFs beyond which thermal conductivities of the specimens increased gradually and, reached to the relatively maximum value. This improvement can be explained by the presence of high numbers of uniform distributed closed cells from RPUFs and hollow honeycomb structure of TFFs in the foam matrix. As for the acoustic features, the TFFs-modified foams showed tend to increase their acoustic performance in almost all frequencies with the increasing of the TFFs percent, which is attributed to the consistent increment in the apparent densities of the foam and reduction in the cavities in the matrices. Additionally, in comparison with unfilled foam, the foams with 3 and 6 wt% of TFFs illustrated lower air permeability (12.6% reduction) thanks to TFFs acting as an additional micro-barriers restricting air passage in the matrices. Furthermore, the taken SEM images revealed that the cellular structures of the resulting foams were considerably influenced by TFF loadings. The uniform cell distribution without any defective shapes was seen at low TFFs contents, whereas the formation of distorted and inhomogeneous cellular structures, local TFFs accumulations accompanied by the regional phase separation were observed at high contents.
Açıklama
This work was supported by Bolu Abant Izzet Baysal University (BAIBU) research fund with the grant number of BAP 2020.29.02.1474. Furthermore, the authors wishes to express his deepest gratitude to Kimteks Chemistry Textile Products Trade, Erpilic and Setas Chemical Industry Inc.com panies for supplying of the non-ionic washing material, waste turkey feathers and raw materials for the production of foam, respectively.
Anahtar Kelimeler
Turkey Feather Fibers, Rigid Polyurethane Foam, Thermal Stability, Heat Insulation, Sound Absorption, Air Permeability and Cellular Structure
Kaynak
Construction and Building Materials
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
308
Sayı
Künye
Khaleel, M., Soykan, U., & Çetin, S. (2021). Influences of turkey feather fiber loading on significant characteristics of rigid polyurethane foam: Thermal degradation, heat insulation, acoustic performance, air permeability and cellular structure. Construction and Building Materials, 308, 125014.
