Lignin-Furfural Based Adhesives

Dongre, Prajakta; Driscoll, Mark; Amidon, Thomas E.; Bujanovic, Biljana

doi:10.3390/en8087897

Cited by 94 publications

(62 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was seen from our previous study that extensive cross-linking compromised tensile strength in lignin based adhesive blends [28].…”

Section: Use Of Recovered Reclpilot As An Antioxidantmentioning

confidence: 90%

“…SMAH lignin was isolated from hot water extract of sugar maple wood chips after several steps including filtration and acid hydrolysis. Our previous study also investigated the effect of furfural content (up to 16% on lignin content) on the mechanical properties of the adhesive blends [28]. In this study, furfural content was further increased to 50% and 100%.…”

Section: Production Of Resin From Recovered Ligninmentioning

confidence: 96%

“…The miscanthus RecL based adhesives produced in this study were characterized by their mechanical properties−tensile strength and Young's modulus. The SMAH_F0 formulation (SMAH lignin with 0% furfural at pH 0.65) from our previous work [28] was used as a reference because it was similar in strength to commercial phenol-formaldehyde resin and demonstrated the highest strength among all investigated lignin-based formulations in that study. SMAH lignin was isolated from hot water extract of sugar maple wood chips after several steps including filtration and acid hydrolysis.…”

Section: Production Of Resin From Recovered Ligninmentioning

confidence: 99%

“…Our previous work also suggested that SMAH lignin is more condensed and has undergone cleaving of aryl ether β-O-4 bonds due to the acid hydrolysis step performed during isolation (characterization via HSQC), when compared to the RecL fraction of sugar maple [28]. Adding 50% furfural (a potential cross-linking agent for lignin) to the already condensed SMAH lignin further promotes cross-linking, reducing flexibility of the polymer and decreasing strength (SMAH_F50).…”

Section: Production Of Resin From Recovered Ligninmentioning

confidence: 99%

“…The lignin-based adhesives may be proposed as possible environmentally friendly and safe alternatives to phenol-formaldehyde resins [20][21][22][23][24]. Also, as furfural is a known crosslinking agent for lignin [25][26][27], lignin and furfural may be considered to replace phenol and formaldehyde, respectively, in the lignin-furfural resin systems [28]. An important advantage of using furfural is its renewable nature, underscored by its selection into the list of top ten designed products of biorefineries [29].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Toward Complete Utilization of Miscanthus in a Hot-Water Extraction-Based Biorefinery

et al. 2017

Self Cite

View full text Add to dashboard Cite

Miscanthus (Miscanthus sp. Family: Poaceae) was hot-water extracted (two h, at 160 • C) at three scales: laboratory (Parr reactor, 300 cm 3 ), intermediate (M/K digester, 4000 cm 3 ), and pilot (65 ft 3 -digester, 1.841 × 10 6 cm 3 ). Hot-water extracted miscanthus, hydrolyzate, and lignin recovered from hydrolyzate were characterized and evaluated for potential uses aiming at complete utilization of miscanthus. Effects of scale-up on digester yield, removal of hemicelluloses, deashing, delignification degree, lignin recovery and purity, and cellulose retention were studied. The scale-dependent results demonstrated that before implementation, hot-water extraction (HWE) should be evaluated on a scale larger than a laboratory scale. The production of energy-enriched fuel pellets from hot-water extracted miscanthus, especially in combination with recovered lignin is recommended, as energy of combustion increased gradually from native to hot-water extracted miscanthus to recovered lignin. The native and pilot-scale hot-water extracted miscanthus samples were also subjected to enzymatic hydrolysis using a cellulase-hemicellulase cocktail, to produce fermentable sugars. Hot-water extracted biomass released higher amount of glucose and xylose verifying benefits of HWE as an effective pretreatment for xylan-rich lignocellulosics. The recovered lignin was used to prepare a formaldehyde-free alternative to phenol-formaldehyde resins and as an antioxidant. Promising results were obtained for these lignin valorization pathways.

show abstract

“…It was seen from our previous study that extensive cross-linking compromised tensile strength in lignin based adhesive blends [28].…”

Section: Use Of Recovered Reclpilot As An Antioxidantmentioning

confidence: 90%

Section: Production Of Resin From Recovered Ligninmentioning

confidence: 96%

Section: Production Of Resin From Recovered Ligninmentioning

confidence: 99%

Section: Production Of Resin From Recovered Ligninmentioning

confidence: 99%