Superior, processing-dependent thermal conductivity of cellulose Nanocrystal-Poly(vinyl alcohol) composite films

Polymer ◽  
2019 ◽  
Vol 164 ◽  
pp. 17-25 ◽  
Author(s):  
Reaz A. Chowdhury ◽  
Amit Rai ◽  
Evan Glynn ◽  
Patrick Morgan ◽  
Arden L. Moore ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Cellulose Nanocrystal ◽  
Poly Vinyl Alcohol

scholarly journals Incorporating MXene into Boron Nitride/Poly(Vinyl Alcohol) Composite Films to Enhance Thermal and Mechanical Properties

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 379
Author(s):  
Seonmin Lee ◽  
Jooheon Kim
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Boron Nitride ◽  
Composite Film ◽  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol ◽  
Thermal And Mechanical Properties ◽  
Conduction Path ◽  
Thermally Conductive

Aggregated boron nitride (ABN) is advantageous for increasing the packing and thermal conductivity of the matrix in composite materials, but can deteriorate the mechanical properties by breaking during processing. In addition, there are few studies on the use of Ti3C2 MXene as thermally conductive fillers. Herein, the development of a novel composite film is described. It incorporates MXene and ABN into poly(vinyl alcohol) (PVA) to achieve a high thermal conductivity. Polysilazane (PSZ)-coated ABN formed a heat conduction path in the composite film, and MXene supported it to further improve the thermal conductivity. The prepared polymer composite film is shown to provide through-plane and in-plane thermal conductivities of 1.51 and 4.28 W/mK at total filler contents of 44 wt.%. The composite film is also shown to exhibit a tensile strength of 11.96 MPa, which is much greater than that without MXene. Thus, it demonstrates that incorporating MXene as a thermally conductive filler can enhance the thermal and mechanical properties of composite films.

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.

Biodegradation Behavior of Composite Films with Poly (Vinyl Alcohol) Matrix

2011 ◽  
Vol 20 (2) ◽  
pp. 422-430 ◽  
Author(s):  
Csaba Zoltán Kibédi-Szabó ◽  
Marta Stroescu ◽  
Anicuta Stoica-Guzun ◽  
Sorin Ion Jinga ◽  
Szabolcs Szilveszter ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Composite Films ◽  
Poly Vinyl Alcohol
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