Influence of Biochar and Bio-Oil Loading on the Properties of Epoxy Resin Composites
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Date
Authors
HIDALGO OPORTO, PAMELA
Hidalgo, Pamela
Salgado, Luis
Ibacache, Nayadeth
Hunter, Renato A.
Hidalgo, Pamela
Salgado, Luis
Ibacache, Nayadeth
Hunter, Renato A.
Authors
Date
Datos de publicación:
10.3390/polym15081895
Keywords
Bio-oil - Biochar - Epoxy Resin - Hazelnut - Pyrolysis - Substitution - Wheat Straw - Pyrolysis - Straw - Tensile Strength - Bio-based - Bio-oils - Biochar - Degradation Temperatures - Epoxy Resin Composites - Hazelnut - Property - Resin Properties - Tga Curves - Wheat Straws - Epoxy Resins
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Abstract
In this study, we evaluated the use of bio-oil and biochar on epoxy resin. Bio-oil and biochar were obtained from the pyrolysis of wheat straw and hazelnut hull biomass. A range of bio-oil and biochar proportions on the epoxy resin properties and the effect of their substitution were investigated. TGA curves showed improved thermal stability for degradation temperature at the 5% (T5%), 10% (T10%), and 50% (T50%) weight losses on bioepoxy blends with the incorporation of bio-oil and biochar with respect to neat resin. However, decreases in the maximum mass loss rate temperature (T<inf>max</inf>) and the onset of thermal degradation (T<inf>onset</inf>) were obtained. Raman characterization showed that the degree of reticulation with the addition of bio-oil and biochar does not significantly affect chemical curing. The mechanical properties were improved when bio-oil and biochar were incorporated into the epoxy resin. All bio-based epoxy blends showed a large increase in Young s modulus and tensile strength with respect to neat resin. Young s modulus was approximately 1955.90 to 3982.05 MPa, and the tensile strength was between 8.73 and 13.58 MPa for bio-based blends of wheat straw. Instead, in bio-based blends of hazelnut hulls, Young´s modulus was 3060.02 to 3957.84 MPa, and tensile strength was 4.11 to 18.11 Mpa. © 2023 Elsevier B.V., All rights reserved.
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Keywords
Bio-oil , Biochar , Epoxy Resin , Hazelnut , Pyrolysis , Substitution , Wheat Straw , Pyrolysis , Straw , Tensile Strength , Bio-based , Bio-oils , Biochar , Degradation Temperatures , Epoxy Resin Composites , Hazelnut , Property , Resin Properties , Tga Curves , Wheat Straws , Epoxy Resins
Citation
10.3390/polym15081895