scholarly journals Preparation of cellulose nanofibers coated with poly(vinyl alcohol) crystals and their application in composite films

RSC Advances ◽  
2017 ◽  
Vol 7 (32) ◽  
pp. 19828-19832 ◽  
Author(s):  
Tetsuya Uchida ◽  
Fumiaki Iwaguro ◽  
Risa Yanai ◽  
Haruka Dodo
Keyword(s):  
Surface Properties ◽  
Vinyl Alcohol ◽  
Cellulose Nanofibers ◽  
Composite Films ◽  
Poly Vinyl Alcohol

A preparation of CeNFs coated with PVA crystals was used to change the surface properties of the CeNFs in a way that would inhibit the aggregation of CeNFs, leading to the improvement of the dispersibility of CeNFs in composites.

Surface properties of the composite films based on poly(vinyl alcohol) and nanodiamonds as studied by wetting techniques and autoradiography

2019 ◽  
Vol 297 (3) ◽  
pp. 445-452
Author(s):  
Oxana A. Soboleva ◽  
Maria G. Chernysheva ◽  
Ivan Yu Myasnikov ◽  
Elena V. Porodenko ◽  
Gennadii A. Badun
Keyword(s):  
Surface Properties ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol

Structural characterization of cellulose nanofibers isolated from spent coffee grounds and their composite films with poly(vinyl alcohol): a new non-wood source

Cellulose ◽  
2020 ◽  
Vol 27 (9) ◽  
pp. 5017-5028 ◽  
Author(s):  
Noriko Kanai ◽  
Takumi Honda ◽  
Naoki Yoshihara ◽  
Toshiyuki Oyama ◽  
Akira Naito ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Vinyl Alcohol ◽  
Cellulose Nanofibers ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Spent Coffee Grounds ◽  
Coffee Grounds

Surface properties, thermal, and mechanical characteristics of poly(vinyl alcohol)-starch-bacterial cellulose composite films

2017 ◽  
Vol 135 (6) ◽  
pp. 45800 ◽  
Author(s):  
Ioana Chiulan ◽  
Adriana Nicoleta Frone ◽  
Denis Mihaela Panaitescu ◽  
Cristian Andi Nicolae ◽  
Roxana Trusca
Keyword(s):  
Bacterial Cellulose ◽  
Surface Properties ◽  
Vinyl Alcohol ◽  
Mechanical Characteristics ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Cellulose Composite

Preparation of novel poly(vinyl alcohol)/chitosan lactate-based phase-separated composite films for UV-shielding and drug delivery applications

2021 ◽  
Author(s):  
Dilshad Qureshi ◽  
Srusti Pattanaik ◽  
Biswaranjan Mohanty ◽  
Arfat Anis ◽  
Viktoryia Kulikouskaya ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Uv Shielding ◽  
Drug Delivery Applications ◽  
Chitosan Lactate

Fiber Orientation Control by Stretching in Cellulose Nanofiber Green Composites

2017 ◽  
Vol 754 ◽  
pp. 135-138
Author(s):  
Hitoshi Takagi ◽  
Antonio Norio Nakagaito ◽  
Yuya Sakaguchi
Keyword(s):  
Fiber Orientation ◽  
Vinyl Alcohol ◽  
Glass Fibers ◽  
Cellulose Nanofibers ◽  
Polymeric Composite ◽  
High Strength ◽  
Sample Surface ◽  
Cellulose Nanofiber ◽  
Poly Vinyl Alcohol ◽  
Nanofiber Alignment

The presence of nanoscale cellulosic fiber; namely cellulose nanofiber, increases year by year because the mechanical and physical properties are believed to be comparable to those of common glass fibers. On the other hand, most of the reported strength data for the cellulose nanofiber-reinforced polymeric composite materials was not as high as expected. In order to obtain high-strength cellulose nanofiber-reinforced polymer composites, we tried to optimize the fiber orientation of cellulose nanofibers in poly (vinyl alcohol)-based polymer matrix by using a repeated mechanical stretching treatment. The fiber orientation of cellulose nanofibers in the poly (vinyl alcohol) matrix can be modified by changing the total amount of stretching strain applied during the multiple stretching treatments. The degree of fiber alignment was directly evaluated by observing the cellulose nanofibers on the sample surface with a digital microscope. The efficacy of proposed nanofiber alignment control has been explored experimentally and theoretically. The tensile strength and modulus of the cellulosic nanocomposites after applying the multiple stretching treatments increased by approximately 80% and 40% respectively, as compared with those of the untreated nanocomposites.

scholarly journals Xanthan and Poly(vinyl alcohol) - Based Composite Films, as Supports for Chloramphenicol Immobilization

2017 ◽  
Vol 3 (3) ◽  
pp. 195
Author(s):  
Alupei Iulian Corneliu ◽  
Popa Marcel ◽  
Hamcerencu Mihaela ◽  
Savin Alexandru ◽  
Abadie Marc Jean
Keyword(s):  
Vinyl Alcohol ◽  
Composite Films ◽  
Three Dimensional ◽  
Biological Action ◽  
Zero Order ◽  
Experimental Program ◽  
Poly Vinyl Alcohol ◽  
Knowing That ◽  
Zero Order Kinetics ◽  
Dimensional Network

The paper discusses a method for the realization of some polymer - drug systems in which the macromolecular support is represented by a three-dimensional network based on xanthan and poly(vinyl alcohol). Knowing that the drug (chloramphenicol) was to be inserted through a diffusion process, the support – selected according to an experimental program – had the highest degree of swelling. Several variants of chloramphenicol inclusion into the synthesized support are analyzed by studying the process kinetics. The study of chloramphenicol release from the inclusion products, in the form of films, indicated the installation of a “zero order” kinetics. The tests devoted to the system’s antimicrobial activity evidenced their biological action.

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