Characterization of Polypropylene Staple Yarns by Acoustic Dynamic Modulus

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F13%3A%230001642" target="_blank" >RIV/46747885:24410/13:#0001642 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.scientific.net/KEM.586.3" target="_blank" >http://www.scientific.net/KEM.586.3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.586.3" target="_blank" >10.4028/www.scientific.net/KEM.586.3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of Polypropylene Staple Yarns by Acoustic Dynamic Modulus

Popis výsledku v původním jazyce

The acoustic or sonic pulse-propagation technique for the measurement of dynamic elastic modulus has the advantage of not being dependent on the sample cross-sectional characteristics. This technique also gives a direct measure of modulus rather than theindirect measure in the form of load versus extension. The sonic tests are relatively simple to apply and are nondestructive. The values of sonic modulus of fibrous structures are dependent on the orientation of components and packing density as well. The main aim of this work is to quantify effect of yarn twist on the sonic modulus of staple yarns from polypropylene fibers. The results are compared with selected models of yarn twist influence on the mechanical properties of staple yarns. The correlation between yarn orientation factor defined by Pan and sonic modulus are shown. The sonic modulus is compared with tensile modulus of yarns.

Název v anglickém jazyce

Characterization of Polypropylene Staple Yarns by Acoustic Dynamic Modulus

Popis výsledku anglicky

The acoustic or sonic pulse-propagation technique for the measurement of dynamic elastic modulus has the advantage of not being dependent on the sample cross-sectional characteristics. This technique also gives a direct measure of modulus rather than theindirect measure in the form of load versus extension. The sonic tests are relatively simple to apply and are nondestructive. The values of sonic modulus of fibrous structures are dependent on the orientation of components and packing density as well. The main aim of this work is to quantify effect of yarn twist on the sonic modulus of staple yarns from polypropylene fibers. The results are compared with selected models of yarn twist influence on the mechanical properties of staple yarns. The correlation between yarn orientation factor defined by Pan and sonic modulus are shown. The sonic modulus is compared with tensile modulus of yarns.

Druh

C - Kapitola v odborné knize

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Local Mechanical Properties IX

ISBN

978-3-03785-876-9

Počet stran výsledku

5

Strana od-do

3-7

Počet stran knihy

286

Název nakladatele

Trans Tech Publications, Inc.

Místo vydání

Durnten-Zurich, Switzerland

Kód UT WoS kapitoly

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