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Thermodynamic diagrams for polyethylene resins
Author(s) -
Lupton J. M.
Publication year - 1961
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760010304
Subject(s) - crystallinity , materials science , polyethylene , enthalpy , thermodynamics , compressibility , amorphous solid , melting point , volume (thermodynamics) , internal energy , composite material , organic chemistry , chemistry , physics
Abstract For resins of room temperature density 0.91 to 0.96 g/cc, enthaply and internal energy diagrams have been developed from 0 to 200°C and up to 1000 atmospheres. These diagrams can be used for estimating properties for which data are not available, and provide unified view of many properties of polyethylene under conditions of fabrication and use. Extent of crystallinity estimates can be made from enthalpy, internal energy, specific volume, compressibility and melting point data provided for hypothetical amorphous, crystalline and actual resins.