Models, experiments, and numerical simulation of isothermal crystallization of polymers

Maurizio Paolini, R. Caselli, S. Mazzullo, C. Verdi

Risultato della ricerca: Contributo in libroContributo a convegno

Abstract

When a quiescent molten polymer is cooled below the equilibrium melting temperature, crystals (spherulites) appear and keep growing as long as the temperature ranges between the melting temperature and the glass transition temperature. The crystallization process depends upon temperature and crystalline microstructure. In particular, the reduction of the free volume and subsequent impingement between crystals influence both nucleation and growth rates of spherulites. Below the glass transition temperature, the polymer consists of crystal and amorphous phases. In the sequel we discuss a mathematical model for a bidimensional isothermal crystallization process which takes into account the nucleation, growth, and impingement of spherulites.
Lingua originaleEnglish
Titolo della pubblicazione ospiteProceedings of the Seventh European Conference on Mathematics in Industry
Pagine167-174
Numero di pagine8
Stato di pubblicazionePubblicato - 1994
EventoSeventh European Conference on Mathematics in Industry - Montecatini-Terme
Durata: 2 mar 19936 mar 1993

Convegno

ConvegnoSeventh European Conference on Mathematics in Industry
CittàMontecatini-Terme
Periodo2/3/936/3/93

Keywords

  • numerical simulation
  • polymer crystallization

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