2020
DOI: 10.3390/ma13245697
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Synthesis Mechanism of an Environment-Friendly Sodium Lignosulfonate/Chitosan Medium-Density Fiberboard Adhesive and Response of Bonding Performance to Synthesis Mechanism

Abstract: Environment-friendly medium-density fiberboards (MDFs) prepared using sodium lignosulfonate/chitosan adhesives (L/C) show potential in environment-friendly wood-based panel application. However, the synthesis mechanism of this adhesive and the relationships between synthesis mechanism and bonding performance were not discussed in depth. Herein, the synthesis mechanism of L/C was explored in detail based on characterizations of L/C with different mass ratios of sodium lignosulfonate to chitosan by Fourier-trans… Show more

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Cited by 16 publications
(19 citation statements)
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“…Compared with the FTIR spectrum of C-G, a new peak appeared in the FTIR spectra of L/C-G at 2967 cm −1 with the gradual increase in the mass ratio of sodium lignosulfonate to chitosan, corresponding to the CH stretching vibration in sodium lignosulfonate. At the same time, the peak at 2931 cm −1 corresponds to the increase in CH stretching vibration, and the peak at 2866 cm −1 corresponds to the decrease in CH stretching vibration, consistent with the change trend in the FTIR spectra of sodium lignosulfonate/chitosan adhesives [14]. The peak at 1552 cm −1 in the FTIR spectrum of C-G corresponds to the overlapping of C-N in amide II band in chitosan and C = C resulting from the aldol reaction of glutaraldehyde [20].…”
Section: Ftir Analysissupporting
confidence: 76%
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“…Compared with the FTIR spectrum of C-G, a new peak appeared in the FTIR spectra of L/C-G at 2967 cm −1 with the gradual increase in the mass ratio of sodium lignosulfonate to chitosan, corresponding to the CH stretching vibration in sodium lignosulfonate. At the same time, the peak at 2931 cm −1 corresponds to the increase in CH stretching vibration, and the peak at 2866 cm −1 corresponds to the decrease in CH stretching vibration, consistent with the change trend in the FTIR spectra of sodium lignosulfonate/chitosan adhesives [14]. The peak at 1552 cm −1 in the FTIR spectrum of C-G corresponds to the overlapping of C-N in amide II band in chitosan and C = C resulting from the aldol reaction of glutaraldehyde [20].…”
Section: Ftir Analysissupporting
confidence: 76%
“…These results show that the effect of sodium lignosulfonate in L/C-G on the mechanical properties of MDFs was not completely the same as that in L/C. Moreover, for L/C, the 24h TS grew consistently with the increase in the mass ratio of sodium lignosulfonate to chitosan [14]. Similar to L/C-G, the 24h TS first decreased and then increased with the increase in the mass ratio of sodium lignosulfonate to chitosan.…”
Section: Effect Of Sodium Lignosulfonate On Bonding Strengthmentioning
confidence: 82%
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