By B.S. Gupta (Eds.)
Friction is an immense factor in either the creation of textiles and within the accomplished product. This authoritative publication experiences how friction happens and the methods it may be measured and controlled.
The e-book starts off by way of how friction could be outlined and the way the constitution and houses of cloth fibres result in friction behaviour. It additionally discusses slip-stick phenomena in textiles and methods of measuring friction in yarns and upholstery. the second one a part of the publication stories friction particularly textiles, together with cotton, wool and artificial fibres in addition to woven materials. those and different chapters additionally talk about methods of controlling friction, together with textile finishes and lubricants.
With its wonderful editor and contributions from many of the world's top gurus within the topic, Friction in cloth fabrics is a typical reference for the cloth and people getting to know this crucial topic.
- An authoritative evaluation of friction, its administration and control
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Extra info for Friction in Textile Materials
Sample text
5 for selected fibers. For convenience, the results are expressed in dimensionless form by dividing the value of a fiber with that of a hypothetical material whose value in the same units is 1. The results show that on an equal mass basis, Spectra®, PBO and M5 are, among the fibers listed, the stiffest materials to bend. Kevlar® 149 and Carbon T300 follow these. e. nylon, cotton and wool. Just as is the case with tensile modulus, bending stiffness of fibers decreases with increase in temperature and, in hydrophilic materials, with increase in moisture regain.
The loading and unloading curve usually follows a loop, reflecting time dependent behavior and loss in energy, known as hysteresis. The elastic recovery test involves several cycles of loading and unloading with each successive cycle taken to higher load over the previous cycle [4]. A plot of elastic recovery (fraction of elongation or strain recovered) against strain for a number of textile fibers is shown in Fig. 9 [34]. Fiber-to-fiber differences in elastic recovery are obvious. It is generally found and accepted that recovery from strain even as small as 2–5% in most fibers is less than 100%.
The reader is directed to excellent works published in this area by Bowden, Tabor and their associates [1–3]. The general observations of the past five centuries, starting with those of Leonardo de Vinci (1452–1519) in the fifteenth, through those of Amonton (1663–1705), and Coulomb (1736– 1806) in the seventeenth and eighteenth centuries, respectively, were given a rational base in the middle of the twentieth century by the works of Bowden and Tabor. The primary concept that adhesive junctions develop at points of contact and that these must be sheared in order for sliding to occur, along with the corollary concept that this process leads to wear and to reduce which lubrication may be used, led to the introduction of a new discipline, “Tribology,” in engineering colleges of the institutions of higher learning.