Influence of the Plastification Drawing Conditions and Distribution of Drawing Ratios on the Structure and Properties of Fibres Made of a Polyimidoamide Nanocomposite Containing Montmorillonite
Research and development
Authors:
- Mikołajczyk Teresa
Department of Man-Made Fibres, Faculty of Material Technologies and Textile Design, Technical University of Łódź, Łódź, Poland - Olejnik Magdalena (j/w)
 Full text | Abstract: The influence of a single- and two-stage drawing process on the structure and properties of fibres made from a polyimidoamide (PIA) nano-composite containing montmorilloniten (MMT) were investigated. A comparative property analysis of the fibres tested enabled the selection of appropriate technological conditions for the drawing process. We observed that with an increase in the temperature of the plastification bath, an increase in the drawing degree is possible, and this increase causes a rise in the tensile strength properties of the polyimidoamide nano-composite fibres. A decrease in the sorption properties at 65% RH and in the water retention value is connected with them. We noticed that by carrying out a two-stage drawing process, a slightly higher tensile strength of PIA nano-composite fibres can be obtained than by a single stage process. On the other hand, a single-stage drawing process is advantageous as there is an increase in the sorption properties at a moderate tenacity of about 12.5cN/tex. From a technological point of view, a one-stage drawing process can be recommended as a simpler way of realisation. |
Tags: polyimidoamide, nano-composites fibres, montmorillonite, nano-particles , tenacity, porosity, sorption properties, single-stage process, two-stage process.
Citation: Mikołajczyk T., Olejnik M.; Influence of the Plastification Drawing Conditions and Distribution of Drawing Ratios on the Structure and Properties of Fibres Made of a Polyimidoamide Nanocomposite Containing Montmorillonite. FIBRES & TEXTILES in Eastern Europe, January/March 2009, Vol. 17, No. 1 (72) pp. 20-25.