The publications of the members of the research group.
2011 |
Lamberti, Gaetano Isotactic polypropylene crystallization: Analysis and modeling Journal Article European Polymer Journal, 47 (5), pp. 1097–1112, 2011, ISSN: 00143057. Abstract | Links | BibTeX | Tags: Crystallization kinetics, iPP, Modeling, Non-isothermal @article{Lamberti2011b, title = {Isotactic polypropylene crystallization: Analysis and modeling}, author = { Gaetano Lamberti}, url = {http://www.sciencedirect.com/science/article/pii/S0014305711000589}, doi = {10.1016/j.eurpolymj.2011.02.005}, issn = {00143057}, year = {2011}, date = {2011-05-01}, journal = {European Polymer Journal}, volume = {47}, number = {5}, pages = {1097--1112}, abstract = {The relevance of crystallization phenomena during the processing of semi-crystalline polymers is well known. Despite the huge investigation work done in the field, a full description of the crystallization kinetics under non-isothermal conditions still lacks. In this work, a commercial semi-crystalline polymer, an isotactic polypropylene, was studied in term of isothermal crystallization and of crystallization during cooling in a large range of cooling rate. The entire experimental behavior \textendash solidification at high cooling rates, alpha-phase crystallization kinetics at intermediate cooling rates, and secondary crystallization at low cooling rates \textendash was carefully quantified. Finally, a model able to reproduce all the observed features was proposed and tuned, to build a tool useful for the transformation processes simulation codes.}, keywords = {Crystallization kinetics, iPP, Modeling, Non-isothermal}, pubstate = {published}, tppubtype = {article} } The relevance of crystallization phenomena during the processing of semi-crystalline polymers is well known. Despite the huge investigation work done in the field, a full description of the crystallization kinetics under non-isothermal conditions still lacks. In this work, a commercial semi-crystalline polymer, an isotactic polypropylene, was studied in term of isothermal crystallization and of crystallization during cooling in a large range of cooling rate. The entire experimental behavior – solidification at high cooling rates, alpha-phase crystallization kinetics at intermediate cooling rates, and secondary crystallization at low cooling rates – was carefully quantified. Finally, a model able to reproduce all the observed features was proposed and tuned, to build a tool useful for the transformation processes simulation codes. |