thermally stimulated discharge current
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Author(s):  
Chukwuemeka L. Ihemaguba ◽  
Kálmán Marossy

Abstract The paper deals with the study of plasticizers using different thermal methods. The literature data on the melting points of plasticizers proved uncertain; we intended to gather the data by other methods, differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA) and thermally stimulated discharge (TSD). Results of ten plasticizers are demonstrated. During this work, we found that most of plasticizers have no well-defined melting point, and the solidification of plasticizer is similar to the glass transition of polymers. Only the di-n-butyl-phthalate showed regular crystallization. Thermally stimulated discharge current (TSD) method revealed that these compounds have several transitions –dispersion ranges assigned to different molecular motions.


2012 ◽  
Vol 204-208 ◽  
pp. 3905-3908
Author(s):  
Zhong Hua Kong ◽  
Bei Xu ◽  
Zai Fei Luo

Influence of DC and steep front impulse injection on space charge of PP by thermally stimulated discharge current (TSDC) are studied. The experimental results show that space charge of PP is almost irrelative to the rise time of pulse, but space charge has relationship with polarized field intensity and polarized time, which is similar to the theory of TSDC


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