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Xu, J.; Brodu, N.; Mignot, M.; Youssef, B.; Taouk, B.
Biomass & bioenergy, April 2022, 2022-04-00, 2022-04, Letnik: 159Journal Article
The combination of fractional condensation and water extraction methods is proposed to produce phenol rich beech wood pyrolysis bio-oil fractions, which have great potential to replace petroleum-based phenol in polymerization of novolac resin. The polymerization of model phenol acetaldehyde (MPA) resins, mimic acetaldehyde (mimic) resin which base on the composition of phenol compounds in bio-oil, and bio-oil acetaldehyde (BOA) resins were studied. MPA and mimic resins were used to compare with the BOA resins to determine the feasibility of using bio-oil. Bisphenol A type epoxy resin (DGEBA) was used, for the first time, as a formaldehyde-free cross-linker for bio-oil based novolac resins. The kinetic parameters of the curing reaction with model-free methods were obtained using data from a differential scanning calorimeter (DSC). The BOA resin showed curing activation energy was close to that of the phenol-acetaldehyde (PA) resin (95.5 and 94.9 kJ/mol by Kissinger method). The physicochemical and thermal properties of the novolac resins before and after curing are compared, and the potential of treated bio-oil products to effectively replace commercial phenols is demonstrated. •Bio-oil fractions obtained by condensation were used to prepare novolac resin•Water insoluble bio-oil fraction has a potential to replace phenol•A formaldehyde-free cross-linker was used for bio-oil based novolac resins•The curing kinetic parameters were studied using differential calorimetry•A lower curing initial temperature was obtained using bio-oil resin
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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