2021
DOI: 10.3311/ppch.18284
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Abstract: This research was aimed at studying the potential of using residual lignin from acid hydrolysis as a binder in manufacturing eco-friendly, dry-process fibreboards. For that purpose, a modification of the adhesive system and hot-pressing regime was conducted. The adhesive system applied was composed of 2 % phenol-formaldehyde (PF) resin and 10 % hydrolysis lignin (based on the dry fibres). The PF resin does not only act as a binder but generally contributes to the even distribution and good retention of the mai… Show more

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Cited by 10 publications
(13 citation statements)
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“…Previous studies on the use of HL in wood adhesives showed that if it is introduced in the dry state in the pulp, lignin cannot be retained and deteriorated the properties of the panels [44]. It was determined that when using a traditional hot-pressing cycle with first high and subsequent decreasing pressure, the addition of lignin as a substitute of formaldehyde-based adhesives leads to a deterioration of the panel properties [54]. Good results were achieved by using HL with a very small content of PF resin as an auxiliary binder.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Previous studies on the use of HL in wood adhesives showed that if it is introduced in the dry state in the pulp, lignin cannot be retained and deteriorated the properties of the panels [44]. It was determined that when using a traditional hot-pressing cycle with first high and subsequent decreasing pressure, the addition of lignin as a substitute of formaldehyde-based adhesives leads to a deterioration of the panel properties [54]. Good results were achieved by using HL with a very small content of PF resin as an auxiliary binder.…”
Section: Introductionmentioning
confidence: 99%
“…Good results were achieved by using HL with a very small content of PF resin as an auxiliary binder. PF resin was mainly used to improve the retention of lignin in the pulp, and to enhance the binding reactions of between lignin and wood fibers [55]. The cited study did not fully clarify the effect of the total binder content and the effect of the ratio of lignin to PF resin in the adhesive system.…”
Section: Introductionmentioning
confidence: 99%
“…The effect of TiO 2 nanoparticles loading on formaldehyde emission were investigated by Y. Liu and X. Zhu. 17 The use of natural, bio-based scavengers such as tannins, 18,19 hydrolysis lignin, 20 ammonium lignosulfonate, 21 and cellulose 22 has been studied to not only reduce formaldehyde emission but also improve the adhesion properties. These scavengers were summarized by review of the literatures.…”
Section: Introductionmentioning
confidence: 99%
“…They have shown promise in replacing industrial formaldehyde-based adhesives in the wood processing industry and may become a mainstay product in timber-related industries and industrial processes [ 13 ]. Furthermore, they do not appear to have any negative effects on animals and humans [ 14 ].Yet another way of employing lignin is by means of hydrolysis lignin, which can be used in the production of fiberboards [ 15 ]. The hydrolysis process can also be used to obtain HPH (high pressure hydrolysis)-lignin with natural fibers in the form of injectable granules [ 16 ], in a presentation manner very similar to how injectable thermoplastics are commercially available.…”
Section: Introductionmentioning
confidence: 99%