TY - JOUR
AU - Aizenshtein, É.
AB - 5.5296 -- 4.8598 T - = 21.54 "103 h or 2.45 years 0.0311 The yarn strength values for the various periods of outdoor exposure agree satisfactorily with the values calculated from the equation (see Fig. i). The results of the ageing tests with unstabilized 93.4 tex × 4 Capron yarn in outdoor exposure for 12 months also correlate satisfactorily with the calculated values. This method can be used therefore for a sufficiently precise determination of the useful lifespans of synthetic yarns under outdoor conditions by means of parallel tests on IS-1 type apparatus for artificial ageing by irradiation and at outdoor-exposure stations in various parts of the country. LITERATURE CITED 1° M. B. Neiman (editor), The Ageing and Stabilization of Polymers [in Russian], Nauka, Moscow (1974), 332 pp. 2. A. K. Mitropol'skii, Statistical Calculation Techniques [in Russian], Nauka, Moscow (1971), 576 pp. MOLECULAR ORIENTATION OF UNDRAWN POLYESTER FILAMENT YARN UDC 677.494.674.014.8 M. I. Simonova, Z. P. Vysotskaya, and E. M. Aizenshtein In this article the results are reported of an investigation of the influence of the molecular weight of high-molecular-weight polyethylene terephthalate (PETP) produced by solid-phase polycondensation [1] on the orientation and structure of amorphous undrawn Lavsan filament yarn. 
TI - Molecular orientation of undrawn polyester filament yarn
JF - Fibre Chemistry
DO - 10.1007/BF00546856
DA - 2004-10-13
UR - https://www.deepdyve.com/lp/springer-journals/molecular-orientation-of-undrawn-polyester-filament-yarn-AVMhKXj0Zd
SP - 541
EP - 543
VL - 8
IS - 5
DP - DeepDyve
ER -