Rheology and adhesion performance of adhesives formulated with lignins from agricultural waste straws subjected to solid-state fermentation

Borrero-López, Antonio M.; Valencia, C.; Domínguez, Gabriela; Eugenio, María E.; Franco, J.M.

doi:10.1016/j.indcrop.2021.113876

Cited by 19 publications

(18 citation statements)

References 31 publications

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“…The practical adhesion improvement is supported by uniaxial tensile test results, which revealed the mechanical property enhancement of adhesives with the incorporation of HKL_PC. Several other studies have also verified this improvement with the addition of lignin in PU adhesives 19,55,56,59 . Furthermore, the resulting lignin‐based PU adhesives presented similar adhesive performance as the ones obtained from lignin that was hydroxypropylated with PO.…”

Section: Resultssupporting

confidence: 52%

“…Several other studies have also verified this improvement with the addition of lignin in PU adhesives. 19,55,56,59 Furthermore, the resulting ligninbased PU adhesives presented similar adhesive performance as the ones obtained from lignin that was hydroxypropylated with PO. In the previous work, 16 our group modified a Kraft lignin via hydroxypropylation with PO under mild conditions and then blended the modified lignin with CO (30 wt%) for bio-based PU adhesive synthesis.…”

Section: Single-lap Shear Testmentioning

confidence: 66%

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Polyurethane adhesives from castor oil and modified lignin via reaction with propylene carbonate

Antonino

Garcia

Gouveia

et al. 2022

J of Applied Polymer Sci

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Over the last several years, lignin hydroxypropylation with propylene oxide (PO) has been used as the main strategy to overcome lignin limitations, such as its low reactivity, poor dispersion, and high stiffness, in the context of polyurethane (PU) synthesis. However, PO is a flammable, toxic, and carcinogenic compound. Propylene carbonate (PC), a compound with low toxicity and biodegradability, has emerged as a feasible alternative to PO. Although this compound has potential for use in syntheses, lignin hydroxypropylation with PC has not yet been explored in PU synthesis. In this work, PU adhesives are synthesized using castor oil (CO) and hydroxypropylated lignin via the reaction with PC (HKL_PC) as a polyol. HKL_PC is incorporated in CO at different concentrations (10 wt%, 20 wt%, and 30 wt%). Curing kinetics is investigated with temperature‐modulated optical refractometry (TMOR). Dynamic mechanical analysis (DMA) demonstrates an increase in Tg after lignin addition. Furthermore, Young's modulus and practical adhesion are improved with increasing HKL_PC concentration. Results prove that hydroxypropylation with PC is a feasible method for lignin‐based PU synthesis and reveals the potential of this approach as an alternative for the PO‐based method.

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Section: Resultssupporting

confidence: 52%

Section: Single-lap Shear Testmentioning

confidence: 66%

Polyurethane adhesives from castor oil and modified lignin via reaction with propylene carbonate

Antonino

Garcia

Gouveia

et al. 2022

J of Applied Polymer Sci

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“…Meanwhile, IAP-30 was found to be completely attached to one of the substrate surfaces, indicating adhesive failure. 71 Specifically, by building interconnections between the polymer molecules, the molecular mobility is hampered, contributing to enhanced cohesive strength of the adhesive. 72,73 With the mechanism of changing cross-link density, the adhesion strength of IAP-t can be enhanced by controlling the UV exposure time.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Photo-triggered Sustainable Adhesive Based on Itaconic Acid

Jamaludin

Yusoff

Chida

et al. 2022

ACS Sustainable Chem. Eng.

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Photoadhesives have been beneficial for a plethora of applications due to advantages in spatiotemporal control, flexible operating temperature, and in situ applicability. As a sustainable approach, bio-based precursors have been applied for the production of photoadhesives. However, the use of toxic chemicals and incorporation of petroleum-based chemicals in the synthesis process is inevitable. In this study, a photocurable itaconic acid-based polyester, poly(1,3-propanediol-co-citrate-co-itaconate-co-1,12-dodecanedioate) (IAP), was developed from bio-based precursors through a facile, catalyst-free, and solvent-free polycondensation process without use of toxic chemicals. Ultraviolet (UV)-triggered photocross-linking in the presence of a photoinitiator was found to induce adhesion capability in IAP. With 30 min of UV exposure, IAP presented an adhesion strength of 1286.0 ± 19.2 kPa against acrylic substrates. Remarkable adhesion strengths to stainless steel, wood, glass, and polytetrafluoroethylene substrates were also achieved. Due to photo-induced reduction in hydrophilicity of IAP, the polymer was able to repel water at the adhesive−substrate interface upon in situ underwater photocuring, leading to successful wet adhesion. Subsequently, excellent photo-adhesion was also obtained from in situ photocuring of IAP in seawater, simulated body fluid, and silicon oil. This study provides insights into the development of a photo-enhanced and versatile adhesive through green engineering.

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“…Lignin has also been widely studied over the last few decades for PU adhesion, as demonstrated by the vast number of publications and patents centred on this topic [ 241 , 242 , 256 , 269 , 270 ]. The use of lignin allows one to overcome typical PU-adhesive drawbacks, such as delamination resistance, cohesive failure and gap-filling properties.…”

Section: Lignocellulose-based Polyurethanesmentioning

confidence: 99%

“…Very good results in wood-wood surface, but also in metal-metal and metal-textile contact were also reported for lignin-and-castor-oil-based adhesives, where the lignin precedence, either from barley or wheat straw, played a crucial role on the adhesive performance. In this work, biological modifications were also targeted, allowing the tailoring of the adhesion values by the careful selection of both the lignin precedence and the Streptomyces strain [ 270 ]. As hydroxyl groups are the main bonding point to form proper urethane bonds with diisocyanates, other studies have been focused on primarily increasing the hydroxyl group index of lignin by hydroxypropylation or demethylation in order to create a stronger adhesive network [ 256 , 272 , 273 ].…”

Section: Lignocellulose-based Polyurethanesmentioning

confidence: 99%

Lignocellulosic Materials for the Production of Biofuels, Biochemicals and Biomaterials and Applications of Lignocellulose-Based Polyurethanes: A Review

2022

Self Cite

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The present review is devoted to the description of the state-of-the-art techniques and procedures concerning treatments and modifications of lignocellulosic materials in order to use them as precursors for biomaterials, biochemicals and biofuels, with particular focus on lignin and lignin-based products. Four different main pretreatment types are outlined, i.e., thermal, mechanical, chemical and biological, with special emphasis on the biological action of fungi and bacteria. Therefore, by selecting a determined type of fungi or bacteria, some of the fractions may remain unaltered, while others may be decomposed. In this sense, the possibilities to obtain different final products are massive, depending on the type of microorganism and the biomass selected. Biofuels, biochemicals and biomaterials derived from lignocellulose are extensively described, covering those obtained from the lignocellulose as a whole, but also from the main biopolymers that comprise its structure, i.e., cellulose, hemicellulose and lignin. In addition, special attention has been paid to the formulation of bio-polyurethanes from lignocellulosic materials, focusing more specifically on their applications in the lubricant, adhesive and cushioning material fields. High-performance alternatives to petroleum-derived products have been reported, such as adhesives that substantially exceed the adhesion performance of those commercially available in different surfaces, lubricating greases with tribological behaviour superior to those in lithium and calcium soap and elastomers with excellent static and dynamic performance.

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Rheology and adhesion performance of adhesives formulated with lignins from agricultural waste straws subjected to solid-state fermentation

Cited by 19 publications

References 31 publications

Polyurethane adhesives from castor oil and modified lignin via reaction with propylene carbonate

Polyurethane adhesives from castor oil and modified lignin via reaction with propylene carbonate

Photo-triggered Sustainable Adhesive Based on Itaconic Acid

Lignocellulosic Materials for the Production of Biofuels, Biochemicals and Biomaterials and Applications of Lignocellulose-Based Polyurethanes: A Review

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