Tensile textile structure properties

A liber or a filament (a continuous form of fiber) is the fundamental unit of textile materials. It has a unique combination of high strength (tensile, bending, torsional, or compression), high flexibility (i.e., low modulus), extensibility, and shows recoverability on deformation. Most of these properties are observed in one principal direction, which is known as the axis of the fiber. Since all textile structures from one to three dimensional (yam, fabric, or braids, etc.) are built using this basic structural unit, these stmctures also possess the above unique properties. 

Due to the physical binding of yams, textile stractures demonstrate good tensile recovery and shear properties, superior conformability, excellent skin contact (especially with knitted stmctures), breathability and comfort. As such, textile structures will provide an excellent platform for creating smart wearable systems. 

Figure 4.86 Glass fiber reinforced composite - change in tensile properties as a function of glass content and textile structure...

Native cotton is nearly pure cellulose the approximately 6% of minor constituents are usually removed during preparation for wet processing. The chemistry of cotton is therefore the chemistry of cellulose, but the effects of chemical changes on its textile properties depend on its supramolecular structure as well as on the nature of the changes themselves. The term degradation has been used in more than one sense. Originally, it implied a loss of tensile strength... 

These are carried out in normal textile laboratories in order (1) to ensure that the materials under test have been manufactured in accordance with design specification and (2) to monitor any short, medium, or long-term trends. Such tests are concerned primarily with the area density, fabric sett, yam types and linear densities, fabric structure, air permeability, thickness and density (principally nonwoven fabrics), tensile properties, and fabric stability. 

Morton. W.E. and Hearle, J.W.S. (1993) Physical Properties of Textile Fibres. Textile Institute. Manchester. Oudet. Ch. and Bun.sell, A.R. (1987) ElTects of structure on the tensile, creep and fatigue of polyester libres. 

Fuller M, Mao N and Taylor M (2013),The internal structure and tensile properties of goose and duck down feathers. Proceedings of 12th Asian Textile Conference (ATC-12), Shanghai, China, 23-26 October 2013. 

Most polypropylene used in various textile products is produced from isotactic polymers. Isotacticity of polypropylene has significant influence on tape or fiber property. Only iso- and syndiotactic polymer have sufficient molecular order to create polycrystalline structure and hence acceptable physical and tensile properties for oriented tapes. Isotactic polymer chain is characterized by the arrangement of the functional group on one side of the plane. 

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