A highly transparent compressed wood prepared by cell wall densification

Wang, Yajing; Wu, Yan; Yang, Feng; Yang, Lechen; Wang, Jingxian; Zhou, Jichun; Wang, Jing

doi:10.1007/s00226-022-01372-3

Cited by 18 publications

(6 citation statements)

References 39 publications

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“…Similar results can be found in Yu et al.’s and Wang et al.’s reports. [ 9a,64 ] The enhanced mechanical properties might be attributed to the hierarchical and longitudinally oriented cellulose nanofiber structure, which not only improves modulus, but also provides a strong synergistic strength improvement. Some researchers also attributed these enhancements to the formation of additional hydrogen bonds between the cellulose microfibrils of the densified wood cells after compression.…”

Section: Transparent Wood: From Opacity To Transparencymentioning

confidence: 99%

Fabrication, Functionalities and Applications of Transparent Wood: A Review

Xin

Wang

et al. 2023

Adv Funct Materials

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Transparent wood (TW)‐based materials have increasingly become the focus of researchers worldwide owing to their superior physico‐chemical‐optical properties, sustainable nature, as well as the fact that they are highly accommodating frameworks that can act as building blocks to readily explore a vast range of potential functionalities, holding great potential to displace glass and plastics in their various respective applications. The integration of multiple functionalities into TW has been undertaken to fulfill the demands of prospective sophisticated applications through the utilization of functional fillers or coatings. Herein, the up‐to‐date foundational developments and reports concerning emergent TW composites and coatings from a perspective of fabrication‐functionality‐application are comprehensively summarized, with a particular focus on seven specific functionalities; i) solar control; ii) chromically‐responsive, iii) electrically‐conductive, iv) shape‐memory active; v) flame‐retardant; vi) electromagnetic interference shielding; and vii) aesthetics. The potential applications of TW with these functionalities are also discussed. Finally, the current challenge with TW is addressed, as well as the future developments required for eventual real‐world application.

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Section: Transparent Wood: From Opacity To Transparencymentioning

confidence: 99%

Fabrication, Functionalities and Applications of Transparent Wood: A Review

Xin

Wang

et al. 2023

Adv Funct Materials

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“…It has many excellent properties such as lightweight, low thermal conductivity, adjustable light transmittance, and haze degree. Transparent wood instead of glass is not only safe and difficult to break, but also has a certain privacy effect because of its high haze. − The preparation principle of transparent wood is mainly to remove the lignin in the wood or the color substances in the lignin and impregnate the wood with a resin with a similar refractive index to achieve the effect of light transmission.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescent Transparent Wood with Excellent UV-Shielding Function

Xu,

Gan,

Wang

et al. 2024

ACS Omega

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At present, light transmission, energy saving, environmental protection, and UV-shielding materials are very important for optimizing indoor living environment. Here, a fluorescent transparent wood (FTW) with UV-shielding function was prepared by encapsulating a carbon quantum dot and epoxy resin into a delignification wood template. FTW exhibits excellent optical transmittance (about 91%), water absorption stability (weight gain rate less than 9%), longitudinal tensile strength (139 MPa), and UV-shielding properties. Due to the photoluminescence characteristics of the carbon quantum dot and the natural cellulose skeleton of wood, FTW can show uniform luminescence under ultraviolet lamps. At the same time, it has remarkable UVshielding performance. This kind of photoluminescent transparent wood with a UV-shielding function also has the potential to be applied to fields such as electromagnetic shielding and harmful gas detection.

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“…Among them, wood-based transparent composites are a research trend for green and energy-saving buildings, such as transparent wood [ 15 – 17 ], bamboo [ 18 , 19 ], and wheat straw [ 20 ]. Owing to their adjustable light transmittance and haze, light weight, low thermal conductivity, and good mechanical properties, they can provide a uniform and comfortable lighting environment and maintain room temperature (RT), which is advantageous in the field of energy-saving buildings [ 21 – 24 ]. The preparation of transparent biomass materials is mostly divided into two steps: removal of chromogenic groups and impregnation of a polymer with the same refractive index as that of the cellulose template [ 25 – 29 ].…”

Section: Introductionmentioning

confidence: 99%

Green, Sustainable Architectural Bamboo with High Light Transmission and Excellent Electromagnetic Shielding as a Candidate for Energy-Saving Buildings

Wang

et al. 2022

Nano-Micro Lett.

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Currently, light-transmitting, energy-saving, and electromagnetic shielding materials are essential for reducing indoor energy consumption and improving the electromagnetic environment. Here, we developed a cellulose composite with excellent optical transmittance that retained the natural shape and fiber structure of bamboo. The modified whole bamboo possessed an impressive optical transmittance of approximately 60% at 6.23 mm, illuminance of 1000 luminance (lux), water absorption stability (mass change rate less than 4%), longitudinal tensile strength (46.40 MPa), and surface properties (80.2 HD). These were attributed to not only the retention of the natural circular hollow structure of the bamboo rod on the macro, but also the complete bamboo fiber skeleton template impregnated with UV resin on the micro. Moreover, a multilayered device consisting of translucent whole bamboo, transparent bamboo sheets, and electromagnetic shielding film exhibited remarkable heat insulation and heat preservation performance as well as an electromagnetic shielding performance of 46.3 dB. The impressive optical transmittance, mechanical properties, thermal performance, and electromagnetic shielding abilities combined with the renewable and sustainable nature, as well as the fast and efficient manufacturing process, make this bamboo composite material suitable for effective application in transparent, energy-saving, and electromagnetic shielding buildings.

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A highly transparent compressed wood prepared by cell wall densification

Cited by 18 publications

References 39 publications

Fabrication, Functionalities and Applications of Transparent Wood: A Review

Fabrication, Functionalities and Applications of Transparent Wood: A Review

Photoluminescent Transparent Wood with Excellent UV-Shielding Function

Green, Sustainable Architectural Bamboo with High Light Transmission and Excellent Electromagnetic Shielding as a Candidate for Energy-Saving Buildings

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