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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
ISSN Print 0025-5289
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Materiale Plastice (Mater. Plast.), Year 2014, Volume 51, Issue 4,





LILIANA HRISTIAN, DEMETRA LACRAMIOARA BORDEIANU, PAVEL IUREA, ION SANDU, KAMEL EARAR Study of the Tensile Properties of Materials Destined to Manufacture Protective Clothing for Firemen


Abstract:
The work is dedicated to the study of the tensile properties of the seven layers of materials which compose the firemen protective clothing. Protective clothing is used to improve the working place safety, diminishing the action of risk factors, which can be of thermal, chemical, biological, mechanical, physical or electric nature and have direct influence on the life and health of the person who carries out a certain activity. The basic material used in manufacturing these products must possess special characteristics, thus ensuring the accomplishment of certain activities which imply the existence of risk factors. The studied firemen equipment has in its composition NOMEX and KEVLAR technical yarns. The analysis of textile material behaviour in the wearing process shows that these are subject to simple or repeated uniaxial or biaxial tensile stresses. The level of these stresses can be close to breaking strength or it can have small, insignificant values; therefore the designer must anticipate the behaviour to such stresses, and this can be done by determining the indices inferred from the stress - strain diagram. Keywords: protection equipment, stress-strain curve, risk factors, Kevlar, Nomex



Issue: 2014 Volume 51, Issue 4
Pages:
Publication date: 2014/12/30
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