Using cellulose fibers to fabricate transparent paper by microfibrillation

Li, Zhenzhen; Liu, Wenxia; Guan, Feixiang; Li, Guodong; Song, Zhaoping; Yu, Deng‐Guang; Wang, Huili; Liu, Hong

doi:10.1016/j.carbpol.2019.03.019

Cited by 50 publications

(23 citation statements)

References 38 publications

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“…It was 0.912 (p < 0.05) for softwood fibers and 0.889 (p < 0.05) for hardwood fibers, respectively. The similar trends in the The correlation between the CI-XI and the O(2)H⋯O(6) H-bonds or the free OH(2) and OH (6) was poor for the following reasons. The free OH groups are easier for forming the O(2)H⋯O(6) Hbonds as opposed to the O(6)H⋯ O(3′) H-bonds in the amorphous region, because the distance between adjacent glucose units in a cellulosic molecular chain is closer than between the glucose units in the adjacent molecular chain (as shown in Figure 9).…”

Section: Correlation Between CI and Content Of Inter-molecular H-bondmentioning

confidence: 96%

“…Mechanical, chemical, and biological treatments are usually adopted to obtain the desired physical and mechanical properties and for further utilization of the natural cellulosic fibers. Therein, Papirindustriens forskningsinstitut (PFI) refining is the most common laboratory refiner in order to improve the inter-fiber bonding capacity [1] and accessibility [2,3], and manufacture the micro-fibrillated or nano-fibrillated cellulose [4][5][6]. The main effects of PFI refining on fibers are: (i) internal fibrillation-delaminating, loosening, and swelling of fiber wall; (ii) external fibrillation-peeling of fibrils from the fiber surface while remaining attached; (iii) fiber shortening-fiber cutting due to shearing action, and (iv) fines formation-primary fines come from ray cells and parenchyma cells and microfibrils that are caused by fiber shortening or external fibrillation.…”

Section: Introductionmentioning

confidence: 99%

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Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network

Zhao

2020

Polymers

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Supramolecular structure is the critical factor that affects the properties of cellulosic fibers. This article studied the action of Papirindustriens forskningsinstitut (PFI) refining on the molecular aggregation and hydrogen bonding network, and tried to explore the relationship between the crystal packing and hydrogen-bonding network in cellulosic fibers. The results showed that the polymorph, H-bonding distance, and H-bonding energy of various H-bonds remained almost unchanged, while the crystalline index, crystallite size, and content of various H-bonds changed with refining. Therein, the content of the inter-molecular O(6)H⋯O(3′) H-bonds was significantly correlated with the crystalline index that was obtained in intensities of the XRD peaks. The Pearson correlation coefficient between them was 0.888 (p < 0.05) for softwood fibers and 0.889 (p < 0.05) for hardwood fibers, respectively. It can be concluded that the variations of accessibility, swelling, and fibrillation were closely related to the supramolecular structure and the intermolecular H-bonds play an important role in the crystal packing of cellulose.

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Section: Correlation Between CI and Content Of Inter-molecular H-bondmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network

Zhao

2020

Polymers

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“…By definition, these materials have very low transmittance. [59,60] Translucent materials are also called hazy-transparent materials. Translucency or haze is defined as the percentage of total scattered light transmitted at an angle > 2.5° from the direction of the incident beam.…”

Section: Lignocellulosic Films For Engineered Light Managementmentioning

confidence: 99%

Plant‐Based Structures as an Opportunity to Engineer Optical Functions in Next‐Generation Light Management

et al. 2021

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This review addresses the reconstruction of structural plant components (cellulose, lignin, and hemicelluloses) into materials displaying advanced optical properties. The strategies to isolate the main building blocks are discussed, and the effects of fibrillation, fibril alignment, densification, self‐assembly, surface‐patterning, and compositing are presented considering their role in engineering optical performance. Then, key elements that enable lignocellulosic to be translated into materials that present optical functionality, such as transparency, haze, reflectance, UV‐blocking, luminescence, and structural colors, are described. Mapping the optical landscape that is accessible from lignocellulosics is shown as an essential step toward their utilization in smart devices. Advanced materials built from sustainable resources, including those obtained from industrial or agricultural side streams, demonstrate enormous promise in optoelectronics due to their potentially lower cost, while meeting or even exceeding current demands in performance. The requirements are summarized for the production and application of plant‐based optically functional materials in different smart material applications and the review is concluded with a perspective about this active field of knowledge.

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“…The TS values of films produced with BTPT in the present work were higher than synthetic plastics such as linear low density polyethylene (LDPE), high density polyethylene (HDPE) and polypropylene (PP), used in most packages, with about 37; 7-16; 17 and 35 MPa, respectively (Auras et al, 2004;Avérous, 2004;Liu et al, 2012), and papers produced with bleached eucalyptus pulp nanofibers, with TS of around 35 ± 10 MPa (Malucelli et al, 2018). Li et al (2019) produced papers using CNFs of pine bleached pulp, and vacuum filtering, followed by compression and vacuum drying in the process, for papers produced with partially fibrillated cellulose, they found TS of approximately 26 MPa. Both the EKC and BTPT films/nanopapers obtained the highest values of Young's modulus with 40 passages of fibrillation.…”

Section: Mechanical Properties Of the Films/nanopapersmentioning

confidence: 99%

Bio-based films/nanopapers of banana tree pseudostem: From lignocellulosic wastes to added-value micro/nanomaterials

Guimarães

Scatolino

Martins

et al. 2021

Preprint

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The growing demand for products with lower environmental impact and the extensive applicability of cellulose nanofibrils (CNFs) have received attention in several fields of knowledge due to their attractive properties. In this study, bio-based films/nanopapers were produced with CNFs from banana tree pseudostem (BTPT) wastes and Eucalyptus kraft cellulose (EKC) and were evaluated by their properties, such as mechanical strength, biodegradability and light transmittance. The CNFs were produced by mechanical fibrillation (after 20 and 40 passages) from suspensions of BTPT (alkaline pre-treated) and EKC. Films/nanopapers were produced by casting from both suspensions with concentrations of 2% (based in dry mass of CNF). The BTPT films/nanopapers showed greater mechanical properties, with Young’s modulus and tensile strength around 2.42 GPa and 51 MPa (after 40 passages), respectively. On the other hand, the EKC samples showed lower disintegration in water after 24 h and biodegradability. The increase in the number of fibrillation cycles produced more transparent films/nanopapers and caused a significant reduction of water absorption for both raw materials. The permeability was similar for the films/nanopapers from BTPT and EKC. This study indicated that attractive mechanical properties and biodegradability could be achieved by bio-based nanomaterials, with potential for being applied as emulsifying agents and special membranes, enabling more efficient utilization of agricultural wastes.

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Using cellulose fibers to fabricate transparent paper by microfibrillation

Cited by 50 publications

References 38 publications

Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network

Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network

Plant‐Based Structures as an Opportunity to Engineer Optical Functions in Next‐Generation Light Management

Bio-based films/nanopapers of banana tree pseudostem: From lignocellulosic wastes to added-value micro/nanomaterials

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