Nucleating Agents in Polypropylene |
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| Authors: | Nagarajan K Levon K Myerson A S |
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| Institution: | (1) Department of Chemical Engineering, Polytechnic University, Six MetroTech Center, Brooklyn, NY 11201, USA;(2) Illinois Institute of Technology, Armour College of Engineering and Sciences, Illinois, USA |
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| Abstract: | The effects of nucleating agents such as dibenzylidene sorbitol (DBS) (a derivative of sorbitol), pine crystal 1500, sodium and potassium benzoates in commercial grade isotactic polypropylene iPP are studied using differential scanning calorimetry (DSC). Isothermal crystallization kinetics of polypropylene to the alpha phase have been analyzed using Avrami's model. Results indicate that dibenzylidene sorbitol and pine crystal are very effective in increasing the crystallization temperature of the polymer and number of nuclei formed during crystallization.This revised version was published online in November 2005 with corrections to the Cover Date. |
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| Keywords: | Avrami equation crystallization dibenzylidene sorbitol DSC isothermal kinetics nucleating agents nucleation pine crystal polypropylene |
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