1、Preparation of epoxy resin adhesives based on high phenolic
This study establishes a scalable strategy for enhancing the adhesive performance of lignin-based epoxies, while simultaneously advancing activation strategies for lignin valorization in bio-based functional materials.
2、Bonding wood with uncondensed lignins as adhesives
Our strategy involves separation of uncondensed or slightly condensed lignins from biomass followed by direct application of a suspension of the lignin and water as an adhesive on wood...
3、Incorporation of lignin into adhesives: a review
Adhesives are essential in various industries; however, petroleum-based resins raise concerns about environmental and health impacts. Lignin, a renewable biopolymer, offers a sustainable alternative due to its functional groups, which enable its integration into adhesives.
The role of lignin in adhesives for lignin
In this paper, the recent research progress and challenges of lignin formaldehyde-based resin adhesives and adhesives directly prepared with low condensation degree lignin were reviewed.
Advances of Modified Lignin as Substitute to Develop Lignin‐Based
Herein, various methods for lignin modification and the use of modified lignin as a substitute for phenol in the preparation of PF adhesives are reviewed. In particular, industrial applications and prospects of modified lignin in PF are introduced. The authors declare no conflict of interest.
Novel lignin
In this study, we report a novel Lignin-containing high-performance epoxy resin adhesive with excellent water-tolerance, boiling water resistance and freezing resistance. The lignin is simply hydrolyzed and modified by epichlorohydrin to obtain lignin-containing epoxy prepolymer (LEP).
Unprecedentedly tough, strong, water
Utilizing lignin as a complete substitute for petroleum-derived phenol to synthesize non-toxic lignin-based resin adhesives with bio-based aldehydes holds substantial significance for advancing sustainable development in the wood-based panel industry. Nevertheless, the poor bonding strength, toughne …
Melamine–Urea–Formaldehyde Resin Adhesive Modified with Recycling
The wettability, bonding strength and flexibility of modified melamine–urea–formaldehyde resin adhesive with hydroxymethyl lignin (LMUF) were investigated.
A Review on Lignin‐Based Phenolic Resin Adhesive
The latest life cycle assessment displayed that partially replacing phenol with biobased lignin in the process of synthesizing phenolic resin adhesives used in wood panels industry can remarkably reduce carbon emissions and negative environmental impact.
High
Bisphenol A, a toxic chemical, is widely used in the preparation of epoxy resins. Therefore, the use of harmless biomass-based raw materials to replace bisphenol A in the preparation of epoxy resin has attracted extensive attention. A demethylated-lignin-based epoxy resin adhesive was prepared.
In the rapid development of modern industry, material science plays a pivotal role. Among numerous materials, Huanjiang lignin-modified resin adhesive has attracted attention due to its unique properties and broad application prospects. Lignin, as a natural macromolecular compound, is an ideal bio-based material due to its abundant sources and renewability. traditional lignin struggles to meet modern industrial demands due to limitations in its molecular structure. Through innovative technology, Huanjiang Corporation has successfully combined lignin with synthetic resins, developing a novel lignin-modified resin adhesive. This product not only exhibits excellent physical properties but also demonstrates strong environmental adaptability.
The development of lignin-modified resin adhesive stems from recognition of the limitations of traditional materials. With growing global resource constraints and environmental pollution, finding materials that balance high performance and eco-friendliness has become an urgent task. Lignin, as a natural macromolecule, holds potential due to its unique chemical structure and biodegradability. its molecular structure limits effective integration with other materials, restricting practical applications.
During its development, Huanjiang Corporation first subjected lignin to advanced chemical modifications. By introducing specific reactions such as etherification and esterification, the molecular chain structure of lignin was altered, enhancing its interaction with other polymers. This modification improved lignin’s compatibility, increased its binding force with synthetic resins, and endowed the composite material with higher mechanical strength and durability.
In terms of performance, Huanjiang lignin-modified resin adhesive outperforms traditional lignin-based materials in mechanical properties, thermal stability, and aging resistance. For example, under identical conditions, its tensile strength and flexural modulus exceed those of conventional lignin products by 30% and 50%, respectively. Additionally, its superior biodegradability allows it to decompose into harmless substances faster, offering significant environmental benefits.
Environmental impact assessment is critical for evaluating new materials. Huanjiang’s lignin-modified resin adhesive uses low-energy production processes, reducing environmental burdens. Its excellent biodegradability ensures post-use waste does not cause long-term harm to soil or water. These features align with both economic goals and environmental sustainability.
The adhesive’s application prospects span architecture, automotive, aviation, and more. In construction, it can be used for high-strength templates, flooring, and ceilings; in automotive manufacturing, it enables lightweight, high-strength components; and in aviation, it serves as interior material and structural parts. Successful case studies highlight its practical value and market potential.
Future trends suggest broader adoption of Huanjiang’s adhesive as technology advances and eco-consciousness grows. Research will likely focus on enhancing functionalities like UV resistance and antimicrobial properties. Additionally, green manufacturing innovations may further optimize production processes, minimizing environmental impact and enabling sustainable growth.
The emergence of Huanjiang lignin-modified resin adhesive marks a significant step toward high-performance, eco-friendly materials. Its development showcases technological innovation and offers new solutions for environmental and resource challenges. With ongoing progress and expanding markets, this material is poised to unlock greater potential across diverse sectors.
