Flexible transparent wood prepared from poplar veneer and polyvinyl alcohol

Rao, Anantha N. Subba; Nagarajappa, Giridhar B.; Nair, Shanti V.; Chathoth, Anish M.; Pandey, Krishna K.

doi:10.1016/j.compscitech.2019.107719

Cited by 77 publications

(49 citation statements)

References 50 publications

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“…In addition, it still maintained good optical properties under the bending state. Therefore, the fabricated TPV 8 in this study has enormous potentials in photovoltaic applications, such as photovoltaics, solar cells, smart windows, and light shaping diffusers [7,34]. shows the haze of all TPVs in the range of 400 to 800 nm, in which TPV8 displayed the highest haze value of 62% at 400 nm, while the haze value of TPV10 was about 61%, which was slightly lower than that of TVP8.…”

Section: Optical Properties Of Tpvsmentioning

confidence: 80%

Section: The Effect Of Delignification Time On the Lignin Content Of Pvmentioning

confidence: 93%

“…Finally, the relative content of cellulose and hemicellulose increased to 78.89% and 20.66%, respectively, when the delignification time was 8 h. However, the relative content of cellulose slightly decreased after 10 h of delignification. Figure 4, the diffraction peaks appearing at 2θ = 15.8° and 22.6° are due to the I101 and I002 crystal planes of cellulose, and a small diffraction peak appearing at 2θ = 35° is the I040 crystal plane of cellulose [7]. These characteristic peaks represent a typical cellulose I crystal structure.…”

Section: The Effect Of Delignification Time On the Lignin Content Of Pvmentioning

confidence: 97%

Section: Optical Properties Of Tpvsmentioning

confidence: 99%

“…As petroleum follow-on products, these transparent plastic products are neither biodegradable nor renewable, and their non-sustainability and non-environmentally friendly defects limit their application in the future [4]. Consequently, the demand for bio-based materials is urgent, and more attention is being paid to the sustainable production of biofuels, chemicals, and materials from lignocellulosic biomass [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Lignin Content on Properties of Flexible Transparent Poplar Veneer Fabricated by Impregnation with Epoxy Resin

et al. 2020

Polymers

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In this work, poplar veneer (PV) rotary-cut from fast-growing polar was delignified to prepare flexible transparent poplar veneer (TPV). Lignin was gradually removed from the PV and then epoxy resin filled into the delignified PV. The study mainly concerns the effect of lignin content on microstructure, light transmittance, haze, tensile strength, and thermal stability of the PVs impregnated with epoxy resin. The results indicate that the lignin could be removed completely from the PV when the delignification time was around 8 h, which was proved by FTIR spectra and chemical component detection. Moreover, according to SEM observation and XRD testing, the porosity and crystallinity of the PVs were gradually increased with the removal of lignin. Also, the optical properties measurement indicated that the light transmittance and haze of the TPVs gradually increased, and the thermal stability also became more stable as shown by thermogravimetric analysis (TG). However, the tensile strength of the TPVs declined due to the removal of lignin. Among them, TPV8 exhibited excellent optical properties, thermal stability, and tensile strength. Consequently, it has great potential to be used as a substrate in photovoltaics, solar cells, smart windows, etc.

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Section: Optical Properties Of Tpvsmentioning

confidence: 80%

Section: The Effect Of Delignification Time On the Lignin Content Of Pvmentioning

confidence: 93%

Section: The Effect Of Delignification Time On the Lignin Content Of Pvmentioning

confidence: 97%

Section: Optical Properties Of Tpvsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of Lignin Content on Properties of Flexible Transparent Poplar Veneer Fabricated by Impregnation with Epoxy Resin

et al. 2020

Polymers

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Ultra‐Strong and Proton Conductive Aqua‐Based Adhesives from Facile Blending of Polyvinyl Alcohol and Tungsten Oxide Clusters

Chen

Dong

et al. 2022

Adv Funct Materials

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The explosive growth of binder industry spurs the development of strong adhesives with the integration of multi‐functionalities as well as cost‐effective and eco‐friendly processability. Here, polyvinyl alcohol (PVA) and sub‐nanoscale metal oxide cluster, phosphotungstic acid (PTA), both with broad commercial availability, are complexed through hydrogen bonding in water. The obtained nanocomposites demonstrate promising light transmittance and proton conductivity, and most importantly, unprecedentedly high adhesive strengths as ≈4 kN m–1 for peeling strength and 8.2 ± 1.7 MPa for single lap shear strength on typical glass substrate. The supramolecular complexation of PVA with PTA can significantly reduce its crystallinity and accelerate PVA chain dynamics for negligible internal stress and membrane shrinkage upon drying, leading to close contact with glass substrates for strong adhesion. Meanwhile, the supramolecular interaction between PVA and PTA contributes to the nanocomposites’ enhanced mechanical strength and resolves the issue of cohesion failure to ensure high adhesive strengths. The fast chain dynamics also benefit rapid proton transportation, contributing to the high proton conductivities. The binder design protocol can be extended to general polymer systems integrated with desired functionalities and allows scale up processing, providing great opportunities for functional adhesives for safety glass and electronic industry.

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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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Flexible transparent wood prepared from poplar veneer and polyvinyl alcohol

Cited by 77 publications

References 50 publications

Effect of Lignin Content on Properties of Flexible Transparent Poplar Veneer Fabricated by Impregnation with Epoxy Resin

Effect of Lignin Content on Properties of Flexible Transparent Poplar Veneer Fabricated by Impregnation with Epoxy Resin

Ultra‐Strong and Proton Conductive Aqua‐Based Adhesives from Facile Blending of Polyvinyl Alcohol and Tungsten Oxide Clusters

Fabrication, Functionalities and Applications of Transparent Wood: A Review

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