Methods of Forming Nanofibres from Bicomponent PVA/Cationic Starch Solution
Research and development
Authors:
- Adomavičiūtė Erika
Department of Textile Technology, Faculty of Design and Technologies, Kaunas University of Technology, Kaunas, Lithuania - Milašius Rimvydas (j/w)
- Žemaitaitis Algirdas
Department of Organic Technology, Kaunas University of Technology, Kaunas, Lithuania - Bendoraitienė Joana (j/w)
 Full text | Abstract: In this study nanofibres were manufactured from bicomponent PVA/cationic starch (CS) polymers solutions using the electrospinning method. The effect of the starch derivative solution preparation procedure and weight ratio of bicomponent polymer solution on the morphology of nanofibres was investigated. Three types of polymer solutions were prepared: PVA/CS and PVA/homogenizated (hCS), both in water, and PVA/hCS in a mixture of ethanol/water. It was found that the homogenisation procedure for CS improves the spinability of the bicomponent solution. The use of ethanol in the solution allows to form nanofibres, even from one consisting of 25% hCS. It was estimated that a solution composition of PVA/hCS (85/15w/w) in a mixture of ethanol/water is optimal to produce nanofibers by electrospinning. Analysing the morphology of webs formed, it was estimated that more stick nanofibres were formed from the PVA/hCS solution than from the PVA/CS one. The use of a ethanol/water mixture in PVA/hCS causes the formation of thicker nanofibres. |
Tags: electrospinning, nanofibre, PVA, cationic starch
Citation: Adomavičiūtė E., Milašius R., Žemaitaitis A., Bendoraitienė J., Leskovšek M., Demšar A.; Methods of Forming Nanofibres from Bicomponent PVA/Cationic Starch Solution. FIBRES & TEXTILES in Eastern Europe 2009, Vol. 17, No. 3 (74) pp. 29-33.