Isothermal crystallization of polypropylene/titanium dioxide nanocomposites by flash scanning calorimetry

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Buncha Suksut
Praphakorn Saiprasit
Alois K. Schlarb


A wide range of crystallization temperatures of polypropylene (PP) nanocomposites was obtained by using a combination of conventional differential scanning calorimetry (DSC) and flash DSC. This covered the conditions related to polymer processing. The kinetics of crystallization were explained by the Lauritzen-Hoffman equation. The results verify that the equation is still valid even at low temperatures. The decrease in the nucleation parameter ( ) and surface free energy ( ) values in the presence of titanium dioxide (TiO2) proves that TiO2 can be a useful nucleating agent leading to a faster crystallization. The finding gives new insights into crystallization behaviors under low temperature conditions that can be used in the industrial process for the crystallization of PP. It can be concluded that the addition of TiO2 might enable shorter cycle times, resulting in lower processing costs in part manufacturing.


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Suksut, B., Saiprasit, P. ., & Schlarb, A. K. (2021). Isothermal crystallization of polypropylene/titanium dioxide nanocomposites by flash scanning calorimetry. Asia-Pacific Journal of Science and Technology, 26(01), APST–26.
Research Articles
Author Biographies

Praphakorn Saiprasit, Chair of Composite Engineering (CCe), Technische Universität Kaiserslautern, Kaiserslautern 67663, Germany

2Chair of Composite Engineering (CCe), Technische Universität Kaiserslautern, Kaiserslautern 67663, Germany

Alois K. Schlarb, Chair of Composite Engineering (CCe), Technische Universität Kaiserslautern, Kaiserslautern 67663, Germany

2 Chair of Composite Engineering (CCe), Technische Universität Kaiserslautern, Kaiserslautern 67663, Germany
3 Research Center OPTIMAS, Technische Universität Kaiserslautern, Kaiserslautern 67663, Germany
4 Qingdao University of Science & Technology, Qingdao 266042, China


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