Author(s): G.C. Alfonso, M. Cartesegna & L.A. Tagliafico
The paper presents a numerical and experimental approach to quantifjr the
effects of local thermal history on the crystallization process and final
morphological characteristics of semicrystalline polymers during quiescent
cooling and solidification in transient conditions.
A numerical finitedifference
implicit scheme is used to simulate the progress of crystallization
in actual thermal transients using the simple Avrarni equation, which should
strictly hold only in isothermal conditions.
The polymer used is a commercial
Poly Propylene, marked i-PPT30G.
Variable thermophysical properties and
crystallization parameters are included in the model, taking into account
different operating conditions and materials confining the polymer specimen.
The reliability of the approach is proved by comparing numerical an...
Size: 499 kb
Paper DOI: 10.2495/CMEM030671
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