<i>In situ</i>synthesis of novel biomass lignin/silica based epoxy resin adhesive from renewable resources at different pHs

Zhu, Yanchao; Di, Bing; Chen, Hongzhuo; Tian, Yumei

doi:10.1080/01694243.2019.1617511

Cited by 23 publications

(9 citation statements)

References 30 publications

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“…Tough adhesion on various surfaces is a remarkable feature of modern functional adhesives. , From conventional resins , and gums , to bioinspired adhesive hydrogels, − polymeric structures play a significant role not only in exhibiting excellent and long-term adhesion performances but also in realizing adhesion behavior in special environments, e.g. high-moisture environments, or underwater. − For example, catechol-based adhesives represent a new type of modern adhesive with versatile adhesion applications. − At present, most underwater adhesives are based on the catechol structures.…”

Section: Introductionmentioning

confidence: 99%

“…Tough adhesion on various surfaces is a remarkable feature of modern functional adhesives. 1,2 From conventional resins 3,4 and gums 5,6 to bioinspired adhesive hydrogels, 7−10 polymeric structures play a significant role not only in exhibiting excellent and long-term adhesion performances but also in realizing adhesion behavior in special environments, e.g. high-moisture environments, or underwater.…”

Section: ■ Introductionmentioning

confidence: 99%

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Tough, Long-Term, Water-Resistant, and Underwater Adhesion of Low-Molecular-Weight Supramolecular Adhesives

et al. 2020

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Modern functional adhesives have attracted considerable attention due to their reversible adhesion capacities and stimuli-responsive adhesion behavior. However, for modern functional adhesives, polymeric structures were highly necessary to realize adhesion behaviors. Supramolecular adhesives from low-molecular-weight monomers were rarely recognized. Compared with polymeric adhesive materials, it remains challenging for supramolecualr adhesive materials to realize tough adhesion on wet surfaces or even under water. In this study, a new supramolecular adhesive consisting of low-molecular-weight monomers was successfully designed and prepared. Strong and long-term adhesion performance was realized on various surfaces, with a maximum adhesion strength of 4.174 MPa. This supramolecular adhesive exhibits tough and stable adhesion properties in high-moisture and underwater environments (including seawater). Long-term underwater adhesion tests display the potential application of low-molecular-weight adhesive as a marine adhesive.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Tough, Long-Term, Water-Resistant, and Underwater Adhesion of Low-Molecular-Weight Supramolecular Adhesives

et al. 2020

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“…In contrast, many plants have inherent adhesiveness and extensive reproducible sources, making themselves suitable for industrial application. Lignin, ,,, starch, , protein, ,, tannic acid, , and vegetable oil, , through some effective solutions such as cross-linking reaction ( e.g. , chemical cross-linking, dual-cross-linked network, H-bonded cross-linking, and covalent bond cross-linking), copolymerization, in situ synthesis, electrostatic complexation, self-assemblies, and modification of supramolecular structure, surmount the problems of poor adhesive strength and water resistance of plant-based biomass adhesives. , To the best of our knowledge, cellulose is the most abundant natural linear polymer, making up of d -anhydroglucopyranose units (AGUs) linked by β-1,4-glycosidic bonds on earth. , It shows many excellent characteristics including renewable, biocompatibility, biodegradability, high strength, and nanostructure .…”

Section: Introductionmentioning

confidence: 99%

Developing High-Performance Cellulose-Based Wood Adhesive with a Cross-Linked Network

Liu

Yang

et al. 2021

ACS Sustainable Chem. Eng.

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Green, environment friendly, and sustainable biomass-based adhesive has been considered as an optimum alternative of petroleum-derived adhesive, yet poor water resistance restricts their advancement and popularization to a large extent. Herein, a hyperbranched cross-linking cellulose-based adhesive with a synergistic effect of covalent bonds and secondary bonds (mainly include hydrogen bond and hydrophobic effect) is synthesized based on the Maillard reaction between dialdehyde cellulose (DAC) and polyamines. The active aldehyde sites on the DAC skeleton anchor the amino group to form covalent bonds consuming a large number of hydrophilic groups, the remaining aliphatic segments of polyamines criss-cross to knit a hydrophobic network and endow the adhesive the ability to resist water erosion; integrant-exposed hydrophilic groups form intermolecular hydrogen bonds preferentially after curing and clustering due to the agglomeration effect of cellulose, which reduces the opportunity of forming hydrogen bonds with water molecules. The outstanding water resistance is manifested in two aspects: (1) the dry lap shear strength of modified adhesive increased from 1.47 to 3.29 MPa, making increments of 123.8% compared with the original DAC adhesive, the re-dry strength after 3 h of immersion in water of 63 °C or boiling achieved a breakthrough from 0 to 2.27 and 2.36 MPa; (2) the modified adhesive has a higher residual rate (above 77%) and a lower moisture absorption value (less than 22.2%) compared with the neat DAC adhesive (49 and 26.6%). The work provides an underlying approach to prepare wood adhesive with excellent bonding performance and eminent water resistance based on green and cheap raw materials and simple cooking chemistry.

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“…As a well-popular thermosetting polymer, epoxy resin (EP) has been widely used in many fields such as adhesive [1,2], construction materials [3,4], aerospace [2,5], electrical area [6] owing to its high adhesive strength, chemical stability, mechanical properties and excellent insulation properties, etc. Unfortunately, EP exhibits high flammability and releases a large amount of toxic smoke during combustion, which causes potential hazards to human health and greatly restricts the broadening of applications [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…In this work, cytosine (Cy) used as a promising bio-based material was combined with hydroxyethylidene diphosphonic acid (HEDP) to synthesize a bio-based flame retardant based on a facile and economical synthetic method and then incorporated into epoxy matrix by solution blending. The bio-based and microscale product named Cy-HEDP was well characterized by Fourier transform infrared spectroscopy (FTIR), 1 H and 31 P nuclear magnetic resonance (NMR), scanning electronic microscopy (SEM) as well as X-ray photoelectron spectroscopy (XPS). The thermal stability of EP/Cy-HEDP composites was measured by thermogravimetry analysis (TGA).…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of a Novel Bio-Based P-N Containing Flame Retardant for Effectively Reducing the Fire Hazards of Epoxy Resin

Li¹,

Hu²,

Yang³

et al. 2022

Journal of Renewable Materials

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In this work, a bio-based flame retardant (Cy-HEDP) was synthesized from cytosine and HEDP through a facile salt-forming reaction and embedded into epoxy matrix to improve the flame retardancy and smoke suppression performance. The product Cy-HEDP was well characterized by FTIR, 1 H and 31 P NMR and SEM tests. On the basis of the results, by adding 15 wt% Cy-HEDP, the EP 15 can pass UL-94 V-0 rating, and the total smoke production (TSP) as well as total heat release (THR) can be decreased by 61.05% (from 22.61 to 8.7 m 2 /m 2 ) and 39.44% (from 103.19 to 62.50 MJ/m 2 ) in comparison to the unfilled EP, reflecting the attenuated smoke toxicity and impeded heat generation. According to the analysis results of residual char, it can be concluded that Cy-HEDP possessed the ability to promote the formation of continuous and dense char layers, which would be a physical barrier to insulate oxygen and prevent heat feedback during the combustion of EP. This work provide inspiration towards developing bio-based flame retardant, probably extending the prospects to other polymeric material system.

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In situsynthesis of novel biomass lignin/silica based epoxy resin adhesive from renewable resources at different pHs

Cited by 23 publications

References 30 publications

Tough, Long-Term, Water-Resistant, and Underwater Adhesion of Low-Molecular-Weight Supramolecular Adhesives

Tough, Long-Term, Water-Resistant, and Underwater Adhesion of Low-Molecular-Weight Supramolecular Adhesives

Developing High-Performance Cellulose-Based Wood Adhesive with a Cross-Linked Network

Facile Synthesis of a Novel Bio-Based P-N Containing Flame Retardant for Effectively Reducing the Fire Hazards of Epoxy Resin

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