publication . Article . 2013

Difusividad térmica de mezclas de LDPE y PP en estado fundido

Genhli Yánez; Miguel Ángel Rodríguez Pérez; Ovidio Almanza;
Open Access English
  • Published: 01 Aug 2013
  • Publisher: Facultad de Ingeniería, Universidad Nacional de Colombia.
Abstract
Experimental results are reported for measuring the thermal diffusivity of two polymer species: low density polyethylene (LDPE) and polypropylene (PP). Measurements were taken in unsteady state heat flow conditions around the materials' melting temperature, using a device specially constructed for this purpose. The experimental results for the sample's temperature profile (temperature gradient product) were adjusted with the theoretical results obtained by solving the heat conduction equation. Diffusivity values were α =6.92 x 10-7 m²/s for LDPE and α =5.53 x 10-7 m²/s for PP. This was pioneering work in measuring this property at high temperatures in non-statio...
Subjects
free text keywords: low density polyethylene (LDPE), polypropylene (PP), diffusivity, PP, LDPE, difusividad, Engineering (General). Civil engineering (General), TA1-2040
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publication . Article . 2013

Difusividad térmica de mezclas de LDPE y PP en estado fundido

Genhli Yánez; Miguel Ángel Rodríguez Pérez; Ovidio Almanza;