(UM)
-
Uporaba tenziometrije za spremljanje sorpcijskih lastnosti obdelanih celuloznih vlaken : magistrsko deloPeršin Fratnik, ZdenkaViskozna, modalna in liocel vlakna so bila obdelana z različnimi postopki (alkalno pranje, beljenje in luženje), spremembe sorpcijskih lastnosti pa so bile spremljane s klasičnimi metodami ... (navzemanje vlage in sposobnost zadrževanja vode) in s tenziometrijo (stični kot, površinska energija vlaken). Vzporedno je bil raziskan tudi vpliv različnih postopkov preobdelave na strukturne parametre (polimerizacijska stopnja, molekulska masa in jodovo adsorpcijsko število) in mehanske lastnosti posameznih vlaken. Zaključki raziskave kažejo, da se s preobdelavo sorpcijske lastnosti regeneriranih celuloznih vlaken izboljšajo. S preobdelavo se poveča sposobnost navzemanja vode in površinska energija vlaken, stični kot pa se zmanjša. Obdelanim vlaknom se poveča polarni prispevek površinske proste energije. Postopek luženja ima največji vpliv na izboljšanje sorpcijskih lastnosti. Najbolj hidrofilna so viskozna vlakna (tako surova kot obdelana), kar je vzrok v strukturnih parametrih in v velikem številu dostopnih OH skupin, ki so sposobne interakcij z vodo. Sorpcijska sposobnost ni odvisna samo od nadmolekulske strukture, ampak tudi od dostopnih aktivnih mest na površini vlaken, kar nakazuje povečanje površinske energije obdelanih vlaken, spremljane s tenziometrijo. Tenziometrija se je pokazala kot uspešna merilna tehnika, ki lahko nadomesti klasične postopke spremljanja hidrofilnosti, saj omogoča natančno opredelitev hidrofilno/hidrofobnega značaja vlaken.Type of material - master's thesisPublication and manufacture - Maribor : [Z. Peršin], 2001Language - slovenianCOBISS.SI-ID - 6213654
Author
Peršin Fratnik, Zdenka
Other authors
Stana-Kleinschek, Karin |
Sfiligoj-Smole, Majda
Topics
tenziometrija |
sorpcijske lastnosti |
preobdelava |
hidrofilnost |
hidrofobnost |
površinska energija vlaken |
tensimetry |
sorption characteristics |
pre-rteatment |
hydrophilic |
hydrophobic |
surface free energy of fibres
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Library | Call number – location, accession no. ... | Copy status |
---|---|---|
Library of Technical Faculties, Maribor | pisarna A-003 (FERI) MD PERŠIN Z. UPORABA | available - reading room |
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Peršin Fratnik, Zdenka | 19268 |
Stana-Kleinschek, Karin | 07814 |
Sfiligoj-Smole, Majda | 04171 |
Source: Personal bibliographies
and: SICRIS
Select pickup location:
Material pickup by post
Delivery address:
Address is missing from the member's data.
The address retrieval service is currently unavailable, please try again.
By clicking the "OK" button, you will confirm the pickup location selected above and complete the reservation process.
By clicking the "OK" button, you will confirm the above pickup location and delivery address, and complete the reservation process.
By clicking the "OK" button, you will confirm the address selected above and complete the reservation process.
Notification
Automatic login and reservation service currently not available. You can reserve the material on the Biblos portal or try again here later.
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
Pickup location | Material status | Reservation |
---|
Reservation in progress
Please wait a moment.
Reservation was successful.
Reservation failed.
Reservation...
Membership card:
Pickup location: