Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/6386
Title: New Biobased Chitosan-Modified Peach Kernel Shell Composites and Examining Their Behavior in Different Environmental Conditions
Authors: Ahmetli G.
Soydal U.
Kocaman S.
Özmeral N.
Musayev N.
Keywords: Aging
Epoxy resin
Peach kernel shell
Properties
Chitosan
Crosslinking
Epoxy composites
Plastic recycling
Seawater
4,4' isopropylidenediphenol
chitosan
sea water
Bio-based
Bisphenol A
Bisphenols-A
Composites material
Environmental conditions
Epoxy
Hydrophilics
Peach kernel shell
Property
Synthetic polymers
absorption
aging
Article
behavior
crystal structure
crystallization
depolymerization
dynamics
extreme environment
field emission scanning electron microscopy
Fourier transform infrared spectroscopy
humidity
particle size
peach
peach kernel shell
polymerization
relative density
scanning electron microscopy
temperature
thermostability
transmission electron microscopy
ultraviolet radiation
ultraviolet spectrophotometry
Tensile strength
Publisher: Elsevier B.V.
Abstract: Bisphenol A-type epoxy (ER) is a versatile synthetic polymer preferred for composite materials but non-biodegradability raises challenges for composites recycling in particular. The present study first investigated the potential usability of peach kernel shells (PKSh) waste as fillers in ER to decrease the cost of composite materials and increase their bio-based content. Different chemical modifications were performed to increase the poor compatibility between the hydrophilic lignocellulosic filler and the hydrophobic polymer matrix. The modified PKShs were obtained by alkali treatment (NaOH-PKSh), coating with biopolymer chitosan (CTS-PKSh), and cross-linking of CTS with glutaraldehyde (GA@CTS-PKSh). The aging of composites is a highly topical subject given the increasing use of composites in structural applications in many industries. The composites' thermal stability and dynamic-mechanical properties in different aging environments (water, seawater, and hydrothermal) were examined. The order of the aging conditions in terms of their effects on the composite properties was: hydrothermal > water > seawater. The ER/GA@CTS-PKSh composite was the most resistant to all environmental conditions. The tensile strength of epoxy matrix (ER) increased max. by 7.78 %, 21.11 %, 42.22 %, and 45.46 % in the case of raw, NaOH-PKSh, CTS-PKSh, and GA@CTS-PKSh fillers, respectively. Composites showed higher absorption in both UV and visible regions. © 2024
URI: https://doi.org/10.1016/j.ijbiomac.2024.135832
https://hdl.handle.net/20.500.13091/6386
ISSN: 0141-8130
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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