Overview / Quarterly tracker / 2026-Q1
2026-Q1 · Dec 2025 – Feb 2026
No evidence-checked issue for this quarter yet. The leads below are discovery only.
Machine-triaged leads by route
63 leads shown out of 367 discovery records (Crossref and Google News), scanned through 2026-02-28 with deepseek-flash (50 calls). Machine-triaged discovery leads (DeepSeek flash). Not verified evidence: each needs primary-source review before it enters a quarterly issue.
Lignin 18
High-Performance Formaldehyde-Free Lignin Adhesives from Sugarcane Bagasse via Epoxy Cross-Linking
A formaldehyde-free lignin adhesive from sugarcane bagasse was prepared by water-based epoxy cross-linking, and particleboard formaldehyde emissions are reported.
“Lignin derived from sugarcane bagasse presents a sustainable and completely formaldehyde-free alternative to conventional wood adhesives”
Phenol–Formaldehyde Adhesives Modified with Eucalyptus Lignin: The Advantages of Soda Lignin
Phenol–formaldehyde adhesives extended with five Eucalyptus lignins, activated by hydroxymethylation or phenolysis, were tested for tensile shear strength on wooden specimens.
“it is possible to replace at least 45% of the base resin with activated Eucalyptus soda lignin”
Fully bio-based wood adhesives from lignin and zein protein
A scalable lignin–zein adhesive forms strong joints and can be selectively reversed, enabling fully bio-based plywood for indoor applications and reuse.
“enabling fully biobased plywood manufacturing and reuse for indoor applications”
Lignin phosphorylation to enhance mechanical and physical properties and reduce formaldehyde emissions in plywood panels
Lignin phosphorylation is examined to enhance mechanical and physical properties and reduce formaldehyde emissions in plywood panels.
“Lignin is gaining more attention for its potential use in adhesives for wood-based composites”
Plywood Bio-Adhesives by Oxidized Lignin Urea Bridged with Oxidized Starch
Oxidized lignin-urea bio-adhesives bridged with oxidized starch are developed for plywood.
Phenolic Wood Adhesives by Amino Acid-Derived Deep Eutectic Solvents-Treated Lignin for Complete Phenol Replacement
Amino acid-derived deep eutectic solvent-treated lignin is used in phenolic wood adhesives for complete phenol replacement.
Screening high-quality lignins extracted from biomass to prepare biobased wood adhesives - Nature
Reports screening of high-quality lignins extracted from biomass for preparing biobased wood adhesives.
“Screening high-quality lignins extracted from biomass to prepare biobased wood adhesives”
Synthesis of Lignin–Urea Formaldehyde (LUF) Wood Adhesive Based on Lignin Extracted from Oil Palm Empty Fruit Bunches (EFB)
The study synthesized lignin-urea-formaldehyde wood adhesive from oil palm empty fruit bunch lignin and evaluated its tensile strength and formaldehyde emissions.
Mechanisms and Properties for Sustainable Fiberboard Recycling via Simultaneous Utilization of Residual Urea‐Formaldehyde Resin and Lignin
Cured urea-formaldehyde resin and intrinsic lignin were co-utilized under acidic conditions to produce recycled fiberboard with reported internal bonding strength of about 1.98 MPa.
“A substantial amount of discarded fiberboard is ground for reuse globally.”
Deep eutectic solvents regulate lignin properties: in situ synthesis of low-curing-temperature phenolic resin
Deep eutectic solvents regulate lignin properties, enabling in situ synthesis of a low-curing-temperature lignin-based phenolic resin adhesive.
“Lignin-based phenolic resins (LPF) are promising bio-based adhesives”
Flame-retardant wood adhesive prepared from pulp mill residues
Kraft pulp mill side-streams were valorized to produce a fully bio-based flame-retardant wood adhesive with performance competitive with commercial alternatives.
“produce a fully biobased flame-retardant wood adhesive”
A Lignin‐Based Phenolic Resin With a Rapid Curing Rate and High Bonding Strength
Oxidized lignin mimicking mussel adhesive catechol and quinone structures was used to prepare fast-curing lignin-based phenolic resins with faster curing, higher bonding strength, and better thermal stability.
“The ODLPF resins demonstrated enhanced performance, including a faster curing rate, improved bonding strength”
Argan shell-derived phosphorylated lignocellulose: A sustainable pathway in wood adhesive formulation
The title presents argan shell-derived phosphorylated lignocellulose as a sustainable pathway in wood adhesive formulation.
Unprecedentedly tough, strong, water-resistant, and multifunctional lignin-based resin adhesives inspired by loose connective tissue, plant cell walls, and mussel foot proteins
Lignin-based resin adhesives with toughness, strength, and water resistance are reported, inspired by connective tissue, plant cell walls, and mussel foot proteins.
“Unprecedentedly tough, strong, water-resistant, and multifunctional lignin-based resin adhesives”
Kraft Pulping of Mango Seed Husk: Lignin Yield Optimization and Potential Resin Application
Kraft pulping of mango seed husk was optimized for lignin yield; the isolated lignin had high phenolic hydroxyl content and guaiacyl units, indicating potential as a phenol substitute in PF resin.
“could be a great potential as phenol substitute in PF resin production”
Biosoftening of Lignin in Sugarcane Bagasse Using Pleurotus Sajor- Caju: A Sustainable Approach for Enhancanced Reactivity in Resin- Production
Fungal biosoftening of lignin in sugarcane bagasse is studied as a way to enhance lignin reactivity for resin production.
“Biosoftening of Lignin in Sugarcane Bagasse”
Analysis of adhesive-free bonding performance of poplar wood surface swelled with NaOH solution
Poplar wood was surface-swelled with NaOH and hot-pressed to give adhesive-free bonding; molten lignin encapsulating fibers was observed at the bonding interface.
“a distinct phenomenon of molten lignin encapsulating fibers was observed at the bonding interface”
Property Variations of Binder-Free Lignin-Rich Fiber Networks Driven by Forming Processes and Hot Pressing
The study examines property variations of binder-free lignin-rich fiber networks driven by forming processes and hot pressing.
Proteins 10
Synergistically Enhanced Soy Protein Adhesives via Epoxidized Lignin for High-Strength, Flame-Retardant, and Cost-Friendly Wood Bonding
Soy protein adhesives were enhanced with epoxidized lignin for wood bonding, targeting high strength, flame retardancy and low cost.
“Synergistically Enhanced Soy Protein Adhesives via Epoxidized Lignin”
Topology-controlled hyperbranched polyesters enable balanced soy adhesive strengthening and toughening
Topology-controlled hyperbranched polyesters were used to strengthen and toughen soy protein adhesive.
Development of a soybean protein adhesive with excellent water resistance and mildew proof properties using urushiol from the lacquer tree
A soybean protein adhesive was developed using urushiol from the lacquer tree to provide water resistance and mildew proofing.
Demethylated lignin-Fe3+ chelation synergistically constructs a triple-network wood adhesive with soybean protein
Demethylated lignin-Fe3+ chelation was used to construct a triple-network wood adhesive with soybean protein.
Phenol-glyoxal precondensate crosslinked soy protein adhesive and its plywood manufacturing process
Phenol-glyoxal precondensate was used as a crosslinking agent in a soy protein adhesive, and plywood hot-pressing parameters were optimized by orthogonal experiments.
“this study employed a phenol-glyoxal precondensate as a crosslinking agent and optimized the hot-pressing process parameters for plywood”
Dual cross-linked network wood adhesive developed from biomass materials with high water and mildew resistance
A dual cross-linked network wood adhesive was developed from biomass materials, reported to have high water and mildew resistance.
Modification of Cork with Deep Eutectic Solvent and Dopamine for Enhanced Soy Protein-Based Wood Adhesives
Cork is modified with deep eutectic solvent and dopamine for use in enhanced soy protein-based wood adhesives.
Tough and multifunctional soy protein adhesive via nature-mimetic structural design
A tough and multifunctional soy protein adhesive was developed via nature-mimetic structural design.
Guayule resin as a bio-based modifier for soy protein adhesive systems
Guayule resin was studied as a bio-based modifier for soy protein adhesive systems.
Glutaraldehyde-crosslinked soy protein–wood biocomposites: chemical interactions and property optimization
Wood sawdust, soy protein isolate and glutaraldehyde composites were prepared and characterised; imine formation between GTA carbonyls and SPI amines was related to mechanical property changes.
“It was established that chemical interactions occur between GTA carbonyl groups and SPI primary amine groups”
Tannins 9
One-pot, synthesis-free tannin-furfuryl alcohol-phytic acid adhesive: A scalable bio-based alternative to formaldehyde resins with ultra-high flame retardancy, exceptional water resistance and life-cycle benefits
A one-pot, synthesis-free tannin-furfuryl alcohol-phytic acid adhesive is reported as a scalable bio-based alternative to formaldehyde resins.
“One-pot, synthesis-free tannin-furfuryl alcohol-phytic acid adhesive: A scalable bio-based alternative to formaldehyde resins”
Preparation and performance evaluation of valonia tannin-sucrose wood adhesive based on sucrose proportion regulation
Valonia tannin with sucrose as crosslinking agent was evaluated as a wood adhesive; higher sucrose proportions increased dry and warm-water bond strength, meeting GB/T Class II plywood requirements.
“the dry strength increased from 1.04 to 1.43 MPa, and the warm-water strength increased from 0.46 to 0.84 MPa”
Recent Developments in Super-Hydrophobicity and Fire-Resistance of Tannin-Based Non-Isocyanate Polyurethane Resins for Wood-Based Composites
Reviews recent developments in super-hydrophobicity and fire resistance of tannin-based non-isocyanate polyurethane resins for wood-based composites.
Potential of Quebracho Tannin to Substitute Urea-Formaldehyde Adhesive in Plywood: Comparative Technical and Environmental Performance
Quebracho tannin is evaluated as a substitute for urea-formaldehyde adhesive in plywood, comparing technical and environmental performance.
Adhesive Characterization of Acacia mangium Bark Extract and Its Effects on Properties and Formaldehyde Emissions of Rubberwood Particleboard
The study characterizes Acacia mangium bark extract as an adhesive and its effects on properties and formaldehyde emissions of rubberwood particleboard.
Adhesives from Anadenanthera peregrina tannin for plywood production: effect of sodium bisulfite concentration on gluing quality
Tannin adhesives from Anadenanthera peregrina bark extracted with 0, 3 and 5% sodium bisulfite were tested on plywood, with 3% giving better mechanical properties and higher water absorption.
“The objective of this study was to develop natural polyphenol adhesives extracted with different concentrations of sodium bisulfite (NaHSO 3 ) for the production of plywood panels.”
The efficacy of formaldehyde-free tannin resin in comparison with melamine-formaldehyde resin for enhancing the biological durability of ancient wooden copings
Formaldehyde-free tannin resin was compared with melamine-formaldehyde resin for enhancing biological durability of ancient wooden copings.
“formaldehyde-free tannin resin in comparison with melamine-formaldehyde resin”
Biobenzoxazines Generated in Hardened Tannin-Hexamine Wood Adhesives
The study examines biobenzoxazines formed in hardened tannin-hexamine wood adhesives.
Preparation and performance optimization of tannin-modified cold-setting MUF resin and glued wood
Bayberry tannin was added to melamine-urea-formaldehyde resin at different stages; first-stage 6% addition gave the best balance of properties.
“First-stage addition of bayberry tannin yielded optimal results, with 6% identified as the critical optimal dosage.”
Carbohydrates 9
Preparation of glucose-based resin adhesive under ambient conditions with excellent bonding and water resistance for plywood bonding
A glucose-based resin adhesive is prepared under ambient conditions with excellent bonding and water resistance for plywood bonding.
Reducing curing temperature of multifunctional sucrose / tannic acid-based wood adhesive via catalysis method for improved water resistance and bonding strength
Catalysis lowered the curing temperature of a multifunctional sucrose/tannic acid-based wood adhesive, improving water resistance and bonding strength.
“sucrose / tannic acid-based wood adhesive via catalysis method for improved water resistance and bonding strength”
Mussel-inspired gallic acid/cellulose-based adhesive with boiling-water-resistance for bonding wood
A mussel-inspired gallic acid/cellulose-based adhesive is reported with boiling-water resistance for bonding wood.
Performance enhancement of wood composites using cellulose-reinforced cornstarch–tannin adhesives derived from electrical-assisted extraction
Cellulose extracted from almond shell waste reinforced cornstarch–tannin adhesives, and the resulting formaldehyde-free particleboards met EN 312 mechanical standards.
“The resulting formaldehyde-free particleboards exhibit enhanced mechanical properties, meeting EN 312 standards.”
Phytic Acid Crosslinked Chitosan Adhesive for Wood Composites with Enhanced Water Resistance and Flame Retardancy
Phytic acid crosslinked chitosan adhesive is developed for wood composites with water resistance and flame retardancy.
Wood adhesive based on a blend of polyvinyl alcohol and guar gum cross-linked with boric acid
A wood adhesive was prepared from a blend of polyvinyl alcohol and guar gum cross-linked with boric acid.
Carboxylated cellulose nanofibers reinforced polyvinyl alcohol adhesive films with oxidative interfaces for eco-efficient wood bonding
Carboxylated cellulose nanofibers reinforced polyvinyl alcohol adhesive films with oxidative interfaces were developed for eco-efficient wood bonding.
A swallow's nest-inspired unmodified starch hard phase-reinforced adhesive for room-temperature curing with high bonding strength and mildew/fire resistance
An unmodified starch hard-phase-reinforced adhesive inspired by swallow nests is reported for room-temperature curing with high bonding strength and mildew/fire resistance.
Assessing the impact of interaction between starch and emulsifier on the performance of starch-based adhesive: Adjusting the alkyl chain lengths of sodium sulfonate
The interaction between starch and sodium sulfonate emulsifiers with varying alkyl chain lengths is assessed for starch-based adhesive performance.
“Assessing the impact of interaction between starch and emulsifier on the performance of starch-based adhesive”
Polycarboxylic acid systems 9
Candy Wood: Bioadhesive Based on Citric Acid and Glucose With Additives (Lignin, Starch and Glycerol)
Citric acid–glucose bioadhesives modified with lignin, starch or glycerol were characterized and tested in plywood panels; starch gave the best mechanical performance.
“bioadhesives formulated with citric acid and glucose, modified with lignin, starch, or glycerol”
Starch–Citric Acid Adhesive: Preparation and Performance Study Catalyzed by p-Toluenesulfonic Acid
p-Toluenesulfonic acid catalyzed starch–citric acid adhesive esterification, lowering hot-pressing temperature for plywood with good water resistance.
“The results demonstrate that pTSA substantially catalyzes the esterification crosslinking reaction between starch and citric acid.”
A simplified manufacturing technique of fabricating jute stick cross-banded board reinforced with citric acid as a natural binder: Process optimization and characterization
Cross-banded jute stick boards were made with citric acid as binder, optimizing acid concentration and pressing temperature, with ester linkages confirmed by FTIR.
“Fourier transform infrared spectroscopy analysis confirmed the formation of ester linkages between the carboxyl groups of CA and the hydroxyl groups of jute stick components”
Citric Acid as an Alternative Adhesive: Optimisation of Concentrations on Characteristics of Jabon Plywood
Study optimises citric acid concentrations as an alternative adhesive for Jabon plywood.
Characterization of Particleboard Form Sisal Using Citric Acid and Sucrose as Adhesive
Sisal particleboard bonded with citric acid and sucrose at varying ratios was characterized for physical and mechanical properties against JIS A 5908:2003.
“particleboard using sisal with an adhesive ratio of 15% citric acid and 85% sucrose has the best value”
Development of Suberinic Acids-Bonded Medium-Density Particleboard
Particleboard made from sawdust and recycled board residues bonded with a suberinic acid mixture from birch outer bark was tested for physical and mechanical properties.
“natural suberinic acids mixture obtained from birch outer bark as a binder”
A rapid-curing adhesive based on lactic acid and poly(vinyl alcohol) for plywood
A rapid-curing adhesive based on lactic acid and poly(vinyl alcohol) is reported for plywood.
Effects of heat treatment on environmental stability and dissolution behavior of citric acid-containing wood flour sheets
Wood flour sheets were wet-extruded with hydroxypropyl methylcellulose and citric acid, and heat treatment promoted crosslinking and water stability.
“heat treatment promoted CA-mediated crosslinking and insolubilization of HPMC within the sheet structure”
Life Cycle Assessment of Plywood Using Thermally Modified Birch Veneers Bonded with Suberinic Acids Adhesive
A cradle-to-grave life cycle assessment examined thermally modified birch plywood bonded with a birch bark-derived suberinic acids adhesive, finding bark extraction the dominant impact contributor.
“plywood manufactured from thermally modified birch veneers using the Thermovuoto® process, bonded with a birch bark–derived suberinic acids adhesive”
Renewable crosslinkers and aldehyde substitutes 5
A bio-based route to formaldehyde-free, wet-durable wood bonding: aldehyde-functionalized straw microparticles stabilize networks and interphases in polyacrylamide adhesives
Aldehyde-functionalized straw microparticles and Bio-AM form a synergistic interfacial bonding network giving a formaldehyde-free bio-adhesive with good wet shear strength and low global warming impact.
“formaldehyde-free, wet-durable wood bonding”
Maleated Deep Eutectic Solvent (DES) Lignin-Glyoxal-Chitosan Wood Adhesives
Maleated deep eutectic solvent lignin, glyoxal, and chitosan are used to formulate wood adhesives.
Facile preparation of diformylxylose-derived adhesive for wood bonding
A diformylxylose-derived adhesive is prepared for bonding wood.
Formaldehyde-Free Alcohol-Based Wood Adhesives Prepared by ROMP: High Bonding Strength and Excellent Water Resistance
Describes formaldehyde-free alcohol-based wood adhesives prepared by ring-opening metathesis polymerization, reported with high bonding strength and water resistance.
Bending performance improvement of spruce LVL using adhesive-bonded flax fiber composites
Flax fiber composites with epoxy or bio-based polyfurfuryl alcohol matrices were bonded to spruce LVL using melamine-urea-formaldehyde and polyurethane adhesives, then tested mechanically and at 35–85% relative humidity.
“Reinforcement composites using conventional epoxy and bio-based polyfurfuryl alcohol matrices were bonded to the lumber with structural wood adhesives”
Non-isocyanate polyurethanes (NIPU) 2
Surface interaction and adhesion behaviour of eco-friendly non-isocyanate polyurethane wood adhesives derived from upcycled polystyrene and coumarone-indene resins
The surface interaction and adhesion behaviour of eco-friendly non-isocyanate polyurethane wood adhesives derived from upcycled polystyrene and coumarone-indene resins are examined.
“Surface interaction and adhesion behaviour of eco-friendly non-isocyanate polyurethane wood adhesives”
A bio-based non-isocyanate polyurethane adhesive with microphase-separated structure and topological entanglement to simultaneously realize enhanced cohesion and interfacial adhesion
A bio-based non-isocyanate polyurethane adhesive with microphase-separated structure and topological entanglement is reported to enhance cohesion and interfacial adhesion.
Bio-based acrylics and dispersions (watch) 1
Låkril achieves key milestone with first continuous pilot plant for bio-acrylic acid - World Bio Market Insights
Låkril reports reaching a milestone with the first continuous pilot plant for bio-acrylic acid.
“Låkril achieves key milestone with first continuous pilot plant for bio-acrylic acid”