Investigation of aging performance of bio‐oil phenol‐formaldehyde resin with the treatment of artificial accelerated aging method

Yu, Yuxiang; Xu, Pingping; Xing, Jingchen; Li, Lufei; Chang, Jianming

doi:10.1002/pen.24785

Cited by 8 publications

(4 citation statements)

References 35 publications

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“…The FT-IR curves of BMPFs before and after aging for 960 h are displayed in Fig 1 , and the attribution of characteristic absorption peaks is shown in Table 4 [ 10 , 13 , 14 , 23 , 24 ]. As shown in Fig 1 , the peak of methylene (CH 2 ) groups at the region of 2924 cm −1 and 2854 cm −1 , which can indirectly represent the polymerization degree of PF resin [ 25 , 26 ].…”

Section: Resultsmentioning

confidence: 99%

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Performance and characterization of phenol-formaldehyde resin with crude bio-oil by model compound method

Qiu

et al. 2023

PLoS ONE

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In order to clarify the effects of crude bio-oil for phenol-formaldehyde resin, the phenol-formaldehyde resin with bio-oil model compounds (BMPF) were prepared by model compound method. The bonding strength and aging resistance of BMPF were determined, and their microstructure and chemical bonds were also analyzed by scanning electron microscope, Fourier transform infrared spectroscopy, and nuclear magnetic resonance analysis, respectively. The results showed that the components of crude bio-oil had various degrees of effects on the BMPF performance, and the most obvious one is the phenols. The phenols and the ketones of bio-oil had positive effects on the bonding strength. The ketones had the biggest effect on the surface smoothness of BMPF film. But all components of bio-oil could inordinately improve the aging resistance of BMPF. The structural analysis indicated that the effects of bio-oil components on the BMPF performance by changing the resin structure. The CH2 peak in FT-IR and the methylene bridges intensity in NMR of phenol-free BMPF and ketone-free BMPF were smaller, while the results of aldehyde-free BMPF and acid-free BMPF were opposite. And the influence degree of BMPF structure was basically consistent with that of BMPF performance. These results could provide a basis for the modification of phenol-formaldehyde resin by crude bio-oil.

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Section: Resultsmentioning

confidence: 99%

“…The BMPFs were synthesized according to Yu [ 23 ]. The molar ratio of phenol (including bio-oil model compounds) to formaldehyde was 1:2.…”

Section: Methodsmentioning

confidence: 99%

Performance and characterization of phenol-formaldehyde resin with crude bio-oil by model compound method

Qiu

et al. 2023

PLoS ONE

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“…The BPF resin (20 wt.% substitute rate of bio-oil to phenol) was synthesized and characterized according to Yu [ 26 ]. The molar ratio of phenol (including bio-oil)/formaldehyde/NaOH was 1:2:0.5.…”

Section: Methodsmentioning

confidence: 99%

Aging Behaviors of Phenol-Formaldehyde Resin Modified by Bio-Oil under Five Aging Conditions

Jiang

et al. 2022

Polymers

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The bio-oil phenol-formaldehyde (BPF) resin, prepared by using bio-oil as a substitute for phenol, has similar bonding strength but lower price to phenol-formaldehyde (PF) resin. As a common adhesive for outdoor wood, the aging performance of BPF resin is particularly important. The variations in mass, bonding strength, microstructure, atomic composition, and chemical structure of BPF resin under five aging conditions (heat treatment, water immersion, UV exposure, hydrothermal treatment, and weatherometer treatment) were characterized by scanning electron microscope, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy, respectively. Compared under five aging conditions, after aging 960 h, the mass loss of plywood and film was largest under hydrothermal treatment; the bonding strength of plywood, the surface roughness, and O/C ratio of the resin film changed most obviously under weatherometer treatment. FT-IR analysis showed that the decreased degree of peak intensity on CH2 and C–O–C characteristic peaks of BPF resin were weaker under water immersion, hydrothermal treatment, and weatherometer treatment than those of PF resin. The comparison of data between BPF and PF resins after aging 960 h showed that adding bio-oil could obviously weaken the aging effect of water but slightly enhance that of heat. The results could provide a basis for the aging resistance modification of BPF resin.

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“…Accelerated water degradation, based on the two-cycle boil test, 36,37 was performed on samples prepared using the same procedure as above, with the following additions. After removal from the commercial pressure cooker, samples were placed in water for twelve days.…”

Section: Adhesive Sample Preparationmentioning

confidence: 99%

Role of protein aggregate structure on the strength and underwater performance of barnacle-inspired adhesives

et al. 2023

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Investigation of aging performance of bio‐oil phenol‐formaldehyde resin with the treatment of artificial accelerated aging method

Cited by 8 publications

References 35 publications

Performance and characterization of phenol-formaldehyde resin with crude bio-oil by model compound method

Performance and characterization of phenol-formaldehyde resin with crude bio-oil by model compound method

Aging Behaviors of Phenol-Formaldehyde Resin Modified by Bio-Oil under Five Aging Conditions

Role of protein aggregate structure on the strength and underwater performance of barnacle-inspired adhesives

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