Critical Links Governing Performance of Self-binding and Natural Binders for Hot-pressed Reconstituted Lignocellulosic Board without Added Formaldehyde:  A Review

Hubbe, Martin A.; Pizzi, A.; Zhang, Haiyang; Halis, Rasmina

doi:10.15376/biores.13.1.hubbe

Cited by 46 publications

(60 citation statements)

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“…Earlier work had shown that the glass transition temperature of lignin decreased as the moisture content increased (Hatakeyama & Hatakeyama, ; Hubbe et al, ; Pintiaux et al, ). Thus, we next tried to better elucidate the possible influence of lignin relocation by studying the effects of steam pretreating filter paper to which EMAL had been incorporated.…”

Section: Resultsmentioning

confidence: 97%

The influence of lignin migration and relocation during steam pretreatment on the enzymatic hydrolysis of softwood and corn stover biomass substrates

Takada

Chandra

Saddler

2019

Biotech & Bioengineering

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To be effective, steam pretreatment is typically carried out at temperatures/pressures above the glass transition point (Tg) of biomass lignin so that it can partly fluidize and relocate. The relocation of Douglas‐fir and corn stover derived lignin was compared with the expectation that, with the corn stover lignin's lower hydrophobicity and molecular weight, it would be more readily fluidized. It was apparent that the Tg of lignin decreased as the moisture increased, with the easier access of steam to the corn stover lignin promoting its plasticization. Although the softwood lignin was more recalcitrant, when it was incorporated onto filter paper, it too could be plasticized, with its relocation enhancing enzymatic hydrolysis. When lignin recondensation was minimized, the increased hydrophobicity suppressed lignin relocation. It was apparent that differences in the accessibility of the lignin present in Douglas‐fir and corn stover to steam significantly impacted lignin fluidization, relocation, and subsequent cellulose hydrolysis.

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Section: Resultsmentioning

confidence: 97%

The influence of lignin migration and relocation during steam pretreatment on the enzymatic hydrolysis of softwood and corn stover biomass substrates

Takada

Chandra

Saddler

2019

Biotech & Bioengineering

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“…These OH groups can attract each other electrostatically (via hydrogen bonds), causing the chains to build an ordered structure [ 2 ]. Such hydrogen bonding throughout the polysaccharide has a key function in binder applications related to adhesion between cellulose nanoparticles and other materials [ 12 ], for example, in hybrid composite and paper production [ 13 , 14 , 15 , 16 ], environmental and water-related areas [ 17 ], biomedical applications [ 18 ], as well as energy storage devices [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

“…The key properties of CN for the intended binding applications will be delineated separately in the corresponding sections but overall their bio- and tissue-friendly nature, high aspect ratio, excellent mechanical attributes and ability to establish extensive H bonds within various polymeric matrices are among the most important features. Also relevant to its binding performance, they are capable of building a wide range of CN-based hybrids via self- or directed-assembly [ 3 , 10 , 13 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanomaterials—Binding Properties and Applications: A Review

et al. 2018

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Cellulose nanomaterials (CNs) are of increasing interest due to their appealing inherent properties such as bio-degradability, high surface area, light weight, chirality and the ability to form effective hydrogen bonds across the cellulose chains or within other polymeric matrices. Extending CN self-assembly into multiphase polymer structures has led to useful end-results in a wide spectrum of products and countless innovative applications, for example, as reinforcing agent, emulsion stabilizer, barrier membrane and binder. In the current contribution, after a brief description of salient nanocellulose chemical structure features, its types and production methods, we move to recent advances in CN utilization as an ecofriendly binder in several disparate areas, namely formaldehyde-free hybrid composites and wood-based panels, papermaking/coating processes, and energy storage devices, as well as their potential applications in biomedical fields as a cost-effective and tissue-friendly binder for cartilage regeneration, wound healing and dental repair. The prospects of a wide range of hybrid materials that may be produced via nanocellulose is introduced in light of the unique behavior of cellulose once in nano dimensions. Furthermore, we implement some principles of colloidal and interfacial science to discuss the critical role of cellulose binding in the aforesaid fields. Even though the CN facets covered in this study by no means encompass the great amount of literature available, they may be regarded as the basis for future developments in the binder applications of these highly desirable materials.

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“…Currently, several researchers have investigated the possibility of wood substitution with alternative resources and processes [34,54,55,[84][85][86][87][88]. In this case, the main driving force is the relatively high competition of the wood resource and the subsequent economic benefit of replacement or partial replacements of wood with existing agricultural by-products.…”

Section: Miscanthus In Conventional Particle Boardsmentioning

confidence: 99%

“…The plastification of thermoplastic lignin is intended to be the main contributor to the binding effect. The binding effects are influenced by mechanical contact, molecular contact, and interaction, chemical bonding as well as the structural integrity of the composite as is elaborated by Hubbe et al [88] in more detail. Due to the complexity and mutual influence of the effects governing the overall properties of the produced board, a main focus in the research is the influence of the biomass pre-treatment and processing conditions on the mechanical properties of the board.…”

Section: Miscanthus Biomass In Binderless Fiberboardsmentioning

confidence: 99%

Increase of Miscanthus Cultivation with New Roles in Materials Production—A Review

et al. 2020

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Recent changes in the EU green aims can help to overcome economic obstacles in the slow upscaling of Miscanthus cultivation. Using Miscanthus can permanently fix CO 2 within building materials thereby aiding the EU climate goals with the increased use of regrowing materials, as well as carbon fixation. Economic obstacles in the slow upscaling of Miscanthus cultivation are targeted by recent changes in the greening aims in the EU. Miscanthus can fulfill a valuable dual function in aiding the EU climate goals by achieving permanent CO 2 fixation within building materials. In contrast to energetic use, persistent applications create stable markets allowing for a reduced risk in the establishment of long term cultured perennial crops. However, the development of different building materials requires an understanding of the combination of the biological and technical aspects. This work presents an overview of the development of the general aspects for the agricultural product Miscanthus and the scientifically reported developments of Miscanthus used as feedstock in polymers, particle boards, and cementitious materials. While the product performance can be evaluated, the understanding of the influence by the input biomass as a main contributor to the product performance needs to be reinforced to be successful with a goal-oriented development of Miscanthus based products. The key feedstock parameters governing the technical performance of the materials are identified and the knowledge gaps are described.

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Critical Links Governing Performance of Self-binding and Natural Binders for Hot-pressed Reconstituted Lignocellulosic Board without Added Formaldehyde: A Review

Cited by 46 publications

References 0 publications

The influence of lignin migration and relocation during steam pretreatment on the enzymatic hydrolysis of softwood and corn stover biomass substrates

The influence of lignin migration and relocation during steam pretreatment on the enzymatic hydrolysis of softwood and corn stover biomass substrates

Cellulose Nanomaterials—Binding Properties and Applications: A Review

Increase of Miscanthus Cultivation with New Roles in Materials Production—A Review

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