American Journal of Polymer Science
p-ISSN: 2163-1344 e-ISSN: 2163-1352
2017; 7(3): 45-50
doi:10.5923/j.ajps.20170703.01
Armaya’u Usman, Zakariyya Uba Zango
Department of Chemistry, Al-Qalam University Katsina, Katsina, Nigeria
Correspondence to: Zakariyya Uba Zango, Department of Chemistry, Al-Qalam University Katsina, Katsina, Nigeria.
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This work is licensed under the Creative Commons Attribution International License (CC BY).
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Application of Differential scanning Calorimetry (DSC) was employed to study the thermal history of cable insulation wire. Samples of pre-heated and non-pre-heated polymer sample of the cable wire were analysed. From the DSC curves plotted against temperature on both pre-heated and non-pre-heated samples there are considerable differences in the curves. Moreover, the pre-heated curves obtained for pre-heated sample at 50 K/min heating rate shows very distinct similarities, the glass transition occurs at 130°C in all the samples. Two major endothermic peaks of melting and decomposition stages at different stages of temperatures between 337.2°C and 347.7°C where observed and a decomposition transition temperatures between 446.1°C and 448.6°C. These were found to be absent in the curves of the non-pre-heated sample which has only a melting transition stage. Observing the entire DSC curves and the graphs plotted, it can be seen that DSC too showed a clear difference on the thermal history of the two different cable wire samples.
Keywords: DSC, Polymers, Glass transition
Cite this paper: Armaya’u Usman, Zakariyya Uba Zango, Application of DSC in the Study of Thermal History of Cable Insulation Wire, American Journal of Polymer Science, Vol. 7 No. 3, 2017, pp. 45-50. doi: 10.5923/j.ajps.20170703.01.
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![]() | Figure 1. Comparison between DSC curve of pre-heated samples at 50°C and 100°C respectively |
![]() | Figure 2. Comparison of non-pre-heated curves at different heating rates of 10 K/min, 25 K/min and 50 K/min respectively |
![]() | Figure 3. DSC graph of pre-heated insulation wire to 250°C at 25 K/min to onset temperature of 500°C |
![]() | Figure 4. DSC graph of non-pre-heated insulation wire at 25 K/min to onset temperature of 500°C |