The structure and mechanical properties of sheets prepared from bacterial cellulose

Nishi, Yoshio; Uryu, Masaru; Yamanaka, Shigeru; Watanabe, Kunihiko; Kitamura, Noriko; Iguchi, Masatoshi; Mitsuhashi, Susumu

doi:10.1007/bf00584917

Cited by 223 publications

(119 citation statements)

References 2 publications

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“…26,27 Experimental Section Preparation of MFC. The different kinds of microfibrillated cellulose (MFC) used in this study are termed DP-X, where X corresponds to the average degree of polymerization (DP) of the specific MFC sample, estimated from viscosity data, see later in this section.…”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanopaper Structures of High Toughness

et al. 2008

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Cellulose nanofibrils offer interesting potential as a native fibrous constituent of mechanical performance exceeding the plant fibers in current use for commercial products. In the present study, wood nanofibrils are used to prepare porous cellulose nanopaper of remarkably high toughness. Nanopapers of different porosities and from nanofibrils of different molar mass are prepared. Uniaxial tensile tests are performed and structure-property relationships are discussed. The high toughness of highly porous nanopaper is related to the nanofibrillar network structure and high mechanical nanofibril performance. Also, molar mass correlates with tensile strength. This indicates that nanofibril fracture controls ultimate strength. Furthermore, the large strain-to-failure means that mechanisms, such as interfibril slippage, also contributes to inelastic deformation in addition to deformation of the nanofibrils themselves.

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Section: Introductionmentioning

confidence: 99%

Cellulose Nanopaper Structures of High Toughness

et al. 2008

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“…It has more than 200 times greater surface area than isolated softwood cellulose (1), and has a tensile strength similar to that of steel (5). Many potential high value markets exist for thin film bacterial cellulose, including acoustic diaphragms (6), artificial skin (7, 8), artificial blood vessels (9), liquid loaded medical pads (10), super-sorbers (11), and specialty membranes (12). Potential markets for bacterial cellulose produced as pellets in agitated culture include the mining industry, the oil industry, foods, and the pulp and paper industry (1,2).…”

Section: Introductionmentioning

confidence: 99%

Production of Bacterial Cellulose from Alternate Feedstocks

Thompson

Hamilton

2001

ABAB

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SUMMARYProduction of bacterial cellulose by Acetobacter xylinum ATCC 10821 and 23770 in static cultures was tested from unamended food process effluents. Effluents included low-and high-solids potato effluents (LS & HS), cheese whey permeate (CW), and sugar beet raffinate (CSB). Strain 23770 produced 10% less cellulose from glucose than did 10821, and diverted more glucose to gluconate. Unamended HS, CW, and CSB were unsuitable for cellulose production by either strain, while LS was unsuitable for production by 10821. However, 23770 produced 17% more cellulose from LS than from glucose, indicating unamended LS could serve as a feedstock for bacterial cellulose.

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“…This form of BC is produced in a very pure form. Contrary to cellulose from plants, BC is free of wax, hemicellulose and lignin 7 .…”

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confidence: 97%

Cross-Linked Bacterial Cellulose Networks Using Glyoxalization

Quero

Nogi

Lee

et al. 2010

ACS Appl. Mater. Interfaces

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In this study we demonstrate that bacterial cellulose (BC) networks can be crosslinked via glyoxalization. Modified BC networks are found to not dissolve in a typical cellulose solvent comprising a DMAc/LiCl mixture, whereas unmodified BC networks readily dissolve. The crystal structure of unmodified BC networks was investigated and found to not significantly change after glyoxalization, indicating heterogeneous modification occurs. No significant difference in moisture content between unmodified and glyoxalized BC networks is found using thermogravimetric analysis.

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The structure and mechanical properties of sheets prepared from bacterial cellulose

Cited by 223 publications

References 2 publications

Cellulose Nanopaper Structures of High Toughness

Cellulose Nanopaper Structures of High Toughness

Production of Bacterial Cellulose from Alternate Feedstocks

Cross-Linked Bacterial Cellulose Networks Using Glyoxalization

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