ONLINE OPTO-THERMO-MECHANICAL STUDIES OF ISOTACTIC POLYPROPYLENE FIBRES USING MODIFIED MULTI-MODE OPTO-THERMO-MECHANICAL STRETCHING DEVICE.
- Physics Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt.
- Physics Department, Faculty of Science, UMM EL-QURA University, KSA.
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The hot-stage multi-mode opto-thermal stretching device attached to Pluta polarising interference microscopeis used to study the online variations of the optical parameters of isotactic Polypropylene fibre as a function of the surrounding temperature. Also the variations of the birefringence profiles of isotactic Polypropylene at different stretching conditionsis studied. This device allows the online examination of the chains orientation in more details at different draw ratios and surrounding temperatures. The influence of temperature on the stretched samples and necking phenomenon was investigated using the hot-stage stretching device presented in this paper. The experimental results are supported with the microinterferograms, which are given for illustration.
[T.Z.N. Sokkar, M.M. El-Tonsy, A.M. Ali and S.M. El-Khateep. (2016); ONLINE OPTO-THERMO-MECHANICAL STUDIES OF ISOTACTIC POLYPROPYLENE FIBRES USING MODIFIED MULTI-MODE OPTO-THERMO-MECHANICAL STRETCHING DEVICE. Int. J. of Adv. Res. 4 (Sep). 141-157] (ISSN 2320-5407). www.journalijar.com
