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Yano, Hiroyuki; Hirose, A.; Collins, P. J.; Yazaki, Yoshikazu

doi:10.1023/a:1010992307614

Cited by 70 publications

(47 citation statements)

References 2 publications

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“…Delignification was performed according to our previously reported method . Wood was delignified by using 1 wt % sodium chlorite (NaClO 2 , Sigma–Aldrich) in acetate buffer solution (pH 4.6) at 80 °C . The reaction continued until the wood became totally white.…”

Section: Methodsmentioning

confidence: 99%

Lignin‐Retaining Transparent Wood

et al. 2017

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Optically transparent wood, combining optical and mechanical performance, is an emerging new material for light‐transmitting structures in buildings with the aim of reducing energy consumption. One of the main obstacles for transparent wood fabrication is delignification, where around 30 wt % of wood tissue is removed to reduce light absorption and refractive index mismatch. This step is time consuming and not environmentally benign. Moreover, lignin removal weakens the wood structure, limiting the fabrication of large structures. A green and industrially feasible method has now been developed to prepare transparent wood. Up to 80 wt % of lignin is preserved, leading to a stronger wood template compared to the delignified alternative. After polymer infiltration, a high‐lignin‐content transparent wood with transmittance of 83 %, haze of 75 %, thermal conductivity of 0.23 W mK−1, and work‐tofracture of 1.2 MJ m−3 (a magnitude higher than glass) was obtained. This transparent wood preparation method is efficient and applicable to various wood species. The transparent wood obtained shows potential for application in energy‐saving buildings.

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Section: Methodsmentioning

confidence: 99%

Lignin‐Retaining Transparent Wood

et al. 2017

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“…As the resin acted as a plasticizer during compression and the curing fixed the deformed and densified conditions, Young's modulus and bending strength of the compressed wood achieved values around 40 GPa and 400 MPa, respectively. Later, to increase the cellulose nanofibril content, the matrix substances of wood veneers were removed by a mild chemical treatment [201]. The total weight was reduced by 30% and the combination of raw material selection and the removal of non-cellulosic constituents ultimately resulted in composites with a bending modulus of 62 GPa and a strength of 670 MPa [202].…”

Section: Applications and New Advances In Cellulose Nanocompositesmentioning

confidence: 99%

Review: current international research into cellulose nanofibres and nanocomposites

et al. 2010

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This paper provides an overview of recent progress made in the area of cellulose nanofibre-based nanocomposites. An introduction into the methods used to isolate cellulose nanofibres (nanowhiskers, nanofibrils) is given, with details of their structure. Following this, the article is split into sections dealing with processing and characterisation of cellulose nanocomposites and new developments in the area, with particular emphasis on applications. The types of cellulose nanofibres covered are those extracted from plants by acid hydrolysis (nanowhiskers), mechanical treatment and those that occur naturally (tunicate nanowhiskers) or under culturing conditions (bacterial cellulose nanofibrils). Research highlighted in the article are the use of cellulose nanowhiskers for shape memory nanocomposites, analysis of the interfacial properties of cellulose nanowhisker and nanofibrilbased composites using Raman spectroscopy, switchable interfaces that mimic sea cucumbers, polymerisation from the surface of cellulose nanowhiskers by atom transfer radical polymerisation and ring opening polymerisation,

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“…Structure‐preserving delignification followed by polymer impregnation was used as a preparation method for light microscopy studies and later facilitated the preparation of wood templated ceramics down to the nanoscale of the wood cell wall . Yano and co‐workers prepared delignified wood scaffolds for the purpose of maximizing the mechanical properties of wood‐PF (phenol formaldehyde resin) composites. Li et al and Zhu et al have since used it for the purpose of increasing the cell wall nanoporosity for other types of scaffold functionalization.…”

Section: Unique Opportunities In Using the Hierarchical Structured Womentioning

confidence: 99%

Bioinspired Wood Nanotechnology for Functional Materials

2018

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It is a challenging task to realize the vision of hierarchically structured nanomaterials for large-scale applications. Herein, the biomaterial wood as a large-scale biotemplate for functionalization at multiple scales is discussed, to provide an increased property range to this renewable and CO -storing bioresource, which is available at low cost and in large quantities. The Progress Report reviews the emerging field of functional wood materials in view of the specific features of the structural template and novel nanotechnological approaches for the development of wood-polymer composites and wood-mineral hybrids for advanced property profiles and new functions.

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Cited by 70 publications

References 2 publications

Lignin‐Retaining Transparent Wood

Lignin‐Retaining Transparent Wood

Review: current international research into cellulose nanofibres and nanocomposites

Bioinspired Wood Nanotechnology for Functional Materials

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