Karin Stana-Kleinschek (Author), Zdenka Peršin (Author), Tina Maver (Author)

Abstract

This paper presents the use of a non-equilibrium gaseous plasma technique for the activation of regenerated non-woven cellulose, as used in the preparation of wound-dressing materials. Plasma technology provides surface modification according to the required quality in terms of speed, homogeneity, process stability, and efficiency. In this study the non-woven cellulose was exposed to oxygen plasma (O2) in order to acquire the natural polymer's super-hydrophilicity which, among others, defines the materials' usability forwound-dressing. The influence of the plasma parameters on the material's hydrophilicity was studied; and the optimal plasma conditions defined. Combinations of different experimental techniques (contact angle, water retention value, and moisture content) were studied and correlated with the mechanical properties, as a function of plasma modification. The specific adsorption capacity of the non-woven cellulose using oxygen plasma treatment was achieved. In the next step, this material with increased hydrophilicity and improved mechanical properties will be used in the preparation of multilayered wound-dressing materials for specific functionalities (incorporation of drugs, specific functional properties).

Keywords

plasma;oxygen;regenerated non-woven cellulose;super-hydrophilicity;mechanical properties;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: Inštitut za kovinske materiale in tehnologije
UDC: 678:533.9:61
COBISS: 860330 Link will open in a new window
ISSN: 1580-2949
Parent publication: Materiali in tehnologije
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Other data

Secondary language: Slovenian
Secondary title: Modifikacija celuloznih kopren, uporabnih v medicinske namene, z neravnovesno plinsko plazmo
Secondary abstract: V prispevku je predstavljena uporaba neravnovesne plinske plazemske tehnike za obdelavo regeneriranih celuloznih vlaken v obliki netkanih kopren, ki se uporabljajo v materialih za oskrbo površinskih ran. Le-ta omogoča modifikacijo/funkcionalizacijo površine polimerov oz. vlaken in poleg ekološke neoporečnosti zagotavlja še želeno kakovost tako glede hitrosti, homogenosti, stabilnosti kot tudi učinkovitosti obdelave. Za doseganja visoke stopnje hidrofilnosti, ki med drugim določa uporabnost materialov za oskrbo ran, smo celulozne koprene obdelovali s kisikovo (O2) plazmo ter določili njene optimalne pogoje obdelave. Hidrofilnost oz. interakcijsko sposobnost plazemsko modificiranih kopren smo analizirali z različnimi eksperimentalnimi metodami, kot so: določanje stičnih kotov, študij navzemanja vlage ter zadrževanja vode. Analizirane so bile spremembe mehanskih lastnosti plazemsko obdelanih kopren. Kisikova plazemska obdelava je signifikantno vplivala na povečanje hidrofilnosti oz. spremembo adsorpcijske kapacitete celuloznih kopren ob sočasnih dobrih oz. izboljšanih mehanskih lastnostih. Tako modificirani celulozni materiali se bodo v naslednji stopnji uporabili za izdelavo večslojnih visoko funkcionalnih materialov za oskrbo ran (inkorporacija učinkovin, specifičnih funkcionalnih lastnosti).
Secondary keywords: plazma;kisik;regenerirana celulozna koprena;superhidrofilnost;mehanske lastnosti;
URN: URN:NBN:SI:DOC-OPWM7VBL
Type (COBISS): Scientific work
Pages: str. 253-257
Volume: Letn. 45
Issue: št. 3
Chronology: 2011
ID: 1727961