Strong and Optically Transparent Films Prepared Using Cellulosic Solid Residue Recovered from Cellulose Nanocrystals Production Waste Stream

2013 ◽  
Vol 5 (7) ◽  
pp. 2527-2534 ◽  
Author(s):  
Qianqian Wang ◽  
J. Y. Zhu ◽  
John M. Considine
2012 ◽  
Vol 97 (19) ◽  
pp. 8805-8812 ◽  
Author(s):  
Miaomiao Liu ◽  
Yu Zhang ◽  
Ran Ding ◽  
Yingxin Gao ◽  
Min Yang

2019 ◽  
Vol 149 ◽  
pp. 510-520 ◽  
Author(s):  
Samy Yousef ◽  
Mohamed Hamdy ◽  
Maksym Tatariants ◽  
Simona Tuckute ◽  
Samy Zein El-Abden ◽  
...  

MRS Bulletin ◽  
2010 ◽  
Vol 35 (3) ◽  
pp. 214-218 ◽  
Author(s):  
Antonio Norio Nakagaito ◽  
Masaya Nogi ◽  
Hiroyuki Yano

AbstractOrganic light-emitting diodes bring a whole new level of image quality, power consumption, and very thin profiles to displays. In addition, with the appropriate choice of a flexible substrate, paper-like flexible displays that are lightweight, robust, and conformable can be produced. This will make it possible to roll or fold the displays for portability or incorporate them in clothing as wearable displays. Plastic substrates are considered prospective materials due to their inherent flexibility and optical qualities. However, one of the major drawbacks of plastics is the large thermal expansion. The thermal expansion of the substrate has to be compatible with those of the layers deposited on it, otherwise these layers will become strained and crack during the thermal cycling involved in the display manufacture. One of the proposed solutions to reduce the thermal expansion of plastics without appreciable loss in transparency is to reinforce them with nanofibers. These nanofibers are already available in enormous quantities in nature, in the form of cellulose, with the caveat that they have to be extracted properly. Here we present the methodologies required to obtain the cellulose nanofibers and to produce optically transparent composites for use in flexible displays.


Nanomaterials ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 45 ◽  
Author(s):  
Arturo Mendoza-Galván ◽  
Tania Tejeda-Galán ◽  
Amos Domínguez-Gómez ◽  
Reina Mauricio-Sánchez ◽  
Kenneth Järrendahl ◽  
...  

Transparent films of cellulose nanocrystals (CNC) are prepared by dip-coating on glass substrates from aqueous suspensions of hydrolyzed filter paper. Dragging forces acting during films’ deposition promote a preferential alignment of the rod-shaped CNC. Films that are 2.8 and 6.0 µm in thickness show retardance effects, as evidenced by placing them between a linearly polarized light source and a linear polarizer sheet in the extinction configuration. Transmission Mueller matrix spectroscopic ellipsometry measurements at normal incidence as a function of sample rotation were used to characterize polarization properties. A differential decomposition of the Mueller matrix reveals linear birefringence as the unique polarization parameter. These results show a promising way for obtaining CNC birefringent films by a simple and controllable method.


1996 ◽  
Vol 452 ◽  
Author(s):  
P. Torres ◽  
J. Meier ◽  
R. Flückiger ◽  
H. Keppner ◽  
A. Shah

AbstractIn this paper new results on thin p - type μc-Si:H films deposited at low temperatures of 170 °C by the Very High Frequency - Glow Discharge technique (VHF-GD) are presented. The “tolerated” amount of diborane added in the gas phase ratio as well as the influence of three different plasma excitation frequencies (70, 100 and 130 MHz) in obtaining high electrical conductivity are investigated. The goal is to optimise very thin (< 400 Å) and hence optically transparent films by maintaining high conductivities for the application as window layers of solar cells.


2001 ◽  
Vol 703 ◽  
Author(s):  
Elena Vasiliu ◽  
Chyi-Shan Wang ◽  
Richard A. Vaia

ABSTRACTTransparent polymeric material with enhanced thermal, mechanical and barrier properties are of special interest for advanced structural, optical and photonic applications. The present paper reports a novel solution processing scheme for fabricating optically transparent polymer nanocomposites involving organophilic layered silicates. It is shown that the nanocomposite material prepared with PMMA and an organically modified montmorrilonite maintains the excellent optical transparency of PMMA. Small-angle x-ray scattering of the polymer nanocomposite material does not show any Bragg's reflection of the organophilic layered silicate. The optical transparency of the nanocomposite material is attributed to a high degree of exfoliation of the montmorrilonite in the polymer matrix.


2020 ◽  
Vol 62 (6) ◽  
pp. 2431-2440
Author(s):  
Mathieu Croizer ◽  
Quentin Tricas ◽  
Philippe Besnier ◽  
Xavier Castel ◽  
Patrice Foutrel

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