Effect of cross-sectional shape on the behaviour of cationic dyeable poly(ethylene terephthalate) fibres

Abstract

The effects of cross-sectional shape on the properties of cationic dyeable poly(ethylene terephthalate) fibres were investigated. Three different cross sections, namely tetra channel, snowflake and hollow, were used. Tensile test results showed that the hollow cross section has the highest breaking strength, while the snowflake has the lowest. In terms of thermal properties, no significant difference was observed. However, some differences in their morphology and surface topography were seen. According to birefringence studies, the hollow cross section has the highest overall orientation, while tetra has the lowest. In addition to this, hollow cross section gives the highest roughness value.

The effect of cross-section shape on deformation, damage and failure of rock-like materials under uniaxial compression from both a macro and micro viewpoint

“…The effect of cross-sectional shape has been widely studied in many other fields, which provides references for the study in this paper. For example, many achievements have been made in material technology and its application, such as manufacture of textile materials (Endruweit et al., 2018), structural design of laminated composites (An et al., 2017), mechanical properties of functionally graded materials (Kolakowski and Mania, 2017; Kolakowski and Teter, 2015), mechanical properties and application of foam (Abedi et al., 2012; Li et al., 2006) and metal materials (Fan et al., 2013; Huang et al., 2017; Marmo and Rosati, 2015; Yamashita et al., 2003; Zhu and Francois, 2014) and physical and mechanical properties of fibres (Koc et al., 2012). In addition, cross-sectional shape affects heat transfer performance and associated energy dissipation (Col et al., 2011; Sempertegui-Tapia and Ribatski, 2017; Tunvir et al., 2012) as well as the flow of liquids and gases (Ajdari et al., 2006; Burger et al., 2010; Erdogan and Worner, 2013; Sahu et al., 2013; Steckelmacher, 1978).…”

Production of cationic dyeable poly(ethylene terephthalate) fibers via nanotechnology

“…[1] There are many patents describing the modification of PET fibers by means of physical, chemical and physical-chemical procedures, for example, shortening of polyester chains for reducing their pilling tendency is one of the first physical modification techniques. [6] In literature, many additives such as alkali metal salts of dimethyl ester of 5-sulfoisophthalic acid, alkyl sulfonic acid, 2-naphthol-5-sulphonic acid, hydroquinone sulfonic acid, 2-bromo ethane phosphoric acid are recommended. Unfortunately, it is not possible to get bright, lively colors with polyester alone due to its high crystallinity, marked hydrophobicity, lack of chemically active groups and inherent structural deficiencies.…”

Effects of filament cross section on the performance of automotive upholstery fabrics

“…The first attempt about non-circular cross sections was to mimic the gloss of silk fibers by changing the cross section to a trilobal shape. Since then many different cross sections have been introduced for several purposes [5][6][7][8].…”