Statistical analysis of the effect of multi-stage hot drawing on the thermal shrinkage and crystallographic order of biodegradable aliphatic-aromatic co-polyester fibres

• Published in: Fibers and polymers Vol. 12; no. 6; pp. 778 - 788
• Main Authors: Younes, Basel, Fotheringham, Alex, Mather, Robert
• Format: Journal Article
• Language: English
• Published: Heidelberg The Korean Fiber Society 01.09.2011; Springer Nature B.V
• Subjects: Chemistry; Chemistry and Materials Science; Polymer Sciences; Co-polyester fibres; Crystallographic order; Hot drawing; Shrinkage; FWHM
• ISSN: 1229-9197; 1875-0052
• DOI: 10.1007/s12221-011-0778-9

Using statistical experimental design, the effects of multi-stage hot drawing process on thermal shrinkage and crystallographic order of linear aliphatic-aromatic co-polyester fibres were statistically analyzed. Thermal shrinkage and fullwidth half-maximum (FWHM) of an X-ray scattering profile of the fibres have been quantitatively assessed, and the direction of increasing or decreasing the significant process parameters has been characterized. It has been found that the number of drawing stages, drawing temperature and relaxing stage ratio affect the shrinkage and crystallographic order together. Plate temperature and the interaction between drawing stages and drawing temperature or drawing ratio have an effect on thermal shrinkage; Spin finish application and relaxing temperature have an effect on crystallographic order. The data analysis has been characterized with regard to the relationship between the studied factors statistically analyzed and the scientific reasons suggested. Factorial statistical analysis simulates the combination of drawing process parameters and the selected as-spun environmentally friendly biodegradable fibre.