2022
DOI: 10.1039/d2gc01637k
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Interfacial catalysis and lignin nanoparticles for strong fire- and water-resistant composite adhesives

Abstract: Wood is increasingly replacing concrete to reduce CO2 emissions in buildings, but fossil-based adhesives are still being used in wood panels. Epoxidized lignin adhesives could be a potential replacement, but...

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Cited by 29 publications
(20 citation statements)
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“…42 The same interparticle crosslinked LNPs demonstrated improvement also when compared to the previously reported results for intraparticle-crosslinked hybrid bisphenol A/diglycidyl ether-modified lignin nanoparticles developed as wood adhesives which reached an ultimate shear strength of 4.0 ± 0.8 MPa with a relatively high concentration of NPs on the junction surface of 0.1 kg m −2 . 25 In a recent work, 43 a novel wood adhesive was prepared by crosslinking water-soluble epoxidised lignin with LNPs , a maximum ultimate shear strength of 13 MPa, being more than twice the value obtained for GlySol EtOAc + Ins EtOAc LNPs , was achieved by applying an interface loading which was a thousand times higher than that shown in the present study. When considering other bio-based adhesives for glass, LNPs on aminated glass showed similar performances as chitin-amyloid mixtures 44 and chitin nanocrystals 45 on pristine glass.…”
Section: Resultscontrasting
confidence: 43%
“…42 The same interparticle crosslinked LNPs demonstrated improvement also when compared to the previously reported results for intraparticle-crosslinked hybrid bisphenol A/diglycidyl ether-modified lignin nanoparticles developed as wood adhesives which reached an ultimate shear strength of 4.0 ± 0.8 MPa with a relatively high concentration of NPs on the junction surface of 0.1 kg m −2 . 25 In a recent work, 43 a novel wood adhesive was prepared by crosslinking water-soluble epoxidised lignin with LNPs , a maximum ultimate shear strength of 13 MPa, being more than twice the value obtained for GlySol EtOAc + Ins EtOAc LNPs , was achieved by applying an interface loading which was a thousand times higher than that shown in the present study. When considering other bio-based adhesives for glass, LNPs on aminated glass showed similar performances as chitin-amyloid mixtures 44 and chitin nanocrystals 45 on pristine glass.…”
Section: Resultscontrasting
confidence: 43%
“…It has become apparent that overcoming the solvent instability of LNPs would render them plausible alternatives to fossil-based and inorganic nanoparticles such as polystyrene or silica nanoparticles. This can be achieved via internal cross-linking of LNPs by addition of a cross-linker during their supramolecular assembly. Another means to stabilize LNPs is by enzymatic treatment with oxidoreductive enzymes such as laccases. , Wang et al solvent-fractionated birchwood soda lignin sequentially with isopropanol, ethanol, and methanol and treated the methanol-soluble fraction with laccase at pH 10 . The product was isolated and used to assemble LNPs for reduction of silver ions under alkaline conditions.…”
Section: Introductionmentioning
confidence: 99%
“…This can be achieved via internal cross-linking of LNPs by addition of a cross-linker during their supramolecular assembly. 24 27 Another means to stabilize LNPs is by enzymatic treatment with oxidoreductive enzymes such as laccases. 28 , 29 Wang et al solvent-fractionated birchwood soda lignin sequentially with isopropanol, ethanol, and methanol and treated the methanol-soluble fraction with laccase at pH 10.…”
Section: Introductionmentioning
confidence: 99%
“…[23][24][25] Among them, the aromatic plant polymer lignin is one of the most promising bio-based raw materials. [26][27][28][29][30][31] In this sense, lignin nanoparticles (LNPs) are postulated as prime platform for the development of stimuli-responsive nanoparticles. [32][33][34] In recent years the classical disdain on ligninbasically viewed as a byproduct from the pulp and paper industry and destined to be combusted -has given way to a paradigm shift towards the development of lignin-based advanced materials, supported by the inherent properties such as biodegradability, antioxidant activity, and absorbance of UV radiation which are preserved in LNPs.…”
mentioning
confidence: 99%