Smart, sustainable and controllable bio-based shape memory polymer composite fabrication
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The use of bio-based materials in the production of shape memory polymer composite materials (SMPCs) has attracted intense interest from researchers in recent years. In this study, bio-based SMPCs production was aimed with utilizing shape memory polymer containing alkaline lignin was used as matrix phase and hemp/cotton fiber was used as reinforcement element. In order to shed light on their potential for usage as an alternative to synthetic SMPCs, the properties of hemp/fiber reinforced versus glass fiber reinforced SMPCs' comparison was made. The analysis results revealed that among all the samples produced, the alkaline pretreated hemp/cotton fiber reinforced SMPCs that produced at 100 degrees C (Sample 4) has the closest thermomechanical, morphological and shape memory properties to the glass fiber reinforced SMPCs that produced at 100 degrees C (control sample). The results from DSC and DMA analysis demonstrated that the hemp cotton fiber reinforced SMPCs (Sample 4) have a Tg temperature of 99 degrees C and a storage modulus of 2375 MPa, while the control sample has a Tg temperature of 108 degrees C and a storage modulus of 7360 MPa. TGA analysis showed that glass fiber reinforced SMPCs had the highest thermal strength among all samples, with a maximum thermal decomposition temperature of 380 degrees C and the highest coal residue (52%). The key findings from the shape recovery test results are that all samples have a shape stability rate of 97-99%. The control sample has a shape recovery ratio of 98.07% and a shape recovery rate of 0.0227, while Sample 4 showed that the shape recovery ratio of 93.14% and the shape recovery rate of 0.0106 that have the closest properties to the control sample. When all the results were examined, it was concluded that SMPCs produced using alkaline pre-treated hemp/cotton fiber and 1-layer carbon fiber reinforcement have promising properties to have a place in the remotely controllable smart materials that can be activated by temperature.
Açıklama
Anahtar Kelimeler
Bio-based polymer, Hemp, cotton fiber, Alkaline lignin, Shape memory polymer, Shape memory polymer composite, Lignin
Kaynak
Cellulose
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
30
Sayı
9
