Nanofibers layer deposited on the hydrophobic fiberglass mesh and polypropylene non-woven textile for air filters production with the enhanced properties due to potential implementation of plasma technology to the manufacturing process

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00124329" target="_blank" >RIV/00216224:14310/21:00124329 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Nanofibers layer deposited on the hydrophobic fiberglass mesh and polypropylene non-woven textile for air filters production with the enhanced properties due to potential implementation of plasma technology to the manufacturing process

Original language description

The aim of this functional sample was to perform a set of plasma treatment tests on fiberglass mesh and polypropylene spunbond (PP SB) 30 gsm non-woven textile in order to enhance their properties for future use as air filters. As a plasma source a Diffuse Coplanar Surface Barrier Discharge (DCSBD) was used. Two configurations (planar and curved) of electrodes were used while using ambient air as a working environment. An output of the functional sample is the enhanced adhesion characteristics of carrier substrates after plasma treatment.

Czech name

—

Czech description

—

Type

G_funk - Functional sample

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Internal product ID

FS4

Numerical identification

Neuvedena

Technical parameters

The processing of the carrier fabric and nanofibers was performed using one planar and one curved DCSBD electrode. Plasma was generated in the form of a surface dielectric barrier discharge in air at atmospheric pressure at a supplied H V with a frequency of 15-20 kHz and a peak-to-peak voltage of 20 kV. The tested power of the DCSBD was in the range 400 - 600 W, but it was concluded that the best choice was 400 W. Applying 400 W no damage to the carrier was done and the best results were achieved.

Economical parameters

Nanofibers are not self-supporting and need to be applied to carrier materials, usually textiles. Due to the principle of the spinning production process (electrospinning method), physical or chemical cohesion (adhesion) between the carrier fabric and the nanofibers is not guaranteed in any way. This often leads to their peeling from the carrier fabric and deterioration of the nanofiber membrane. To suppress this phenomenon, it is necessary to either change the surface properties of the carrier fabric or to laminate the fibers with an additional protective layer of fabric. This leads to an increase in the cost of the production process (a chemical treatment step of the carrier fabric or a lamination process must be applied) and a slight reduction in the permeability of the nanofiber membrane. The application of plasma generated at atmospheric pressure can alleviate or completely eliminate some of these shortcomings.

Application category by cost

—

Owner IČO

00216224

Owner name

Masarykova univerzita, NAFIGATE Corporation a.s.

Owner country

CZ - CZECH REPUBLIC

Usage type

A - K využití výsledku jiným subjektem je vždy nutné nabytí licence

Licence fee requirement

A - Poskytovatel licence na výsledek požaduje licenční poplatek

Web page

—