HEAT – MECHANICALLY INDUCED STRUCTURE DEVELOPMENT IN PARTIALLY CRYSTALLINE POLYESTER FIBERS. INFLUENCE OF THE MECHANICAL STRESS
HEAT – MECHANICALLY INDUCED STRUCTURE DEVELOPMENT IN PARTIALLY CRYSTALLINE POLYESTER FIBERS. INFLUENCE OF THE MECHANICAL STRESS
DOI:
https://doi.org/10.46687/jsar.v13i1.239Keywords:
polyester fibers, orientation extension, isothermal conditions, tensile stress, differential scanning calorimetryAbstract
There are present results from high temperature uniaxial extension of partially crystalline poly (ethylene terephthalate) (PET) yarns. Effect of the applied to the samples tensile stress at isothermal conditions on the structural changes in the studied objects have been investigated. The structural analyses of the processed fibers were realized using differential scanning calorimetry (DSC).
Author Biographies
Valentin Velev, KONSTANTIN PRESLAVSKY UNIVERSITY, 115 UNIVERSITETSKA STR., 9700 SHUMEN, BULGARIA
KONSTANTIN PRESLAVSKY UNIVERSITY, 115 UNIVERSITETSKA STR., 9700 SHUMEN, BULGARIA
Nina Arhangelova, KONSTANTIN PRESLAVSKY UNIVERSITY OF SHUMEN, 9700, SHUMEN, BULGARIA
KONSTANTIN PRESLAVSKY UNIVERSITY OF SHUMEN, 9700, SHUMEN, BULGARIA
https://orcid.org/0000-0001-7381-6009Daniela Nedeva, TECHNICAL UNIVERSITY OF GABROVO, 4 HADJI DIMITAR STR., 5300 GABROVO, BULGARIA
TECHNICAL UNIVERSITY OF GABROVO, 4 HADJI DIMITAR STR., 5300 GABROVO, BULGARIA
Zhenya Stoyanova, KONSTANTIN PRESLAVSKY UNIVERSITY, 115 UNIVERSITETSKA STR., 9700 SHUMEN, BULGARIA
KONSTANTIN PRESLAVSKY UNIVERSITY, 115 UNIVERSITETSKA STR., 9700 SHUMEN, BULGARIA
Anton Popov, UNIVERSITY "PROF. DR. ASSEN ZLATAROV", 8000, BURGAS, BULGARIA
UNIVERSITY "PROF. DR. ASSEN ZLATAROV", 8000, BURGAS, BULGARIA
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