Features of measuring the rheological properties of polyesters are examined. The drying conditions of polymers are investigated. Rheological curves are plotted for polyethylene terephthalate and polycarbonate.
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References
1.
KalinichevE.L., and SakovtsevaM.B., The Properties and Processing of Thermoplastics. Reference Book.Khimiya, Leningrad, p. 288 (1983).
2.
ASTM D 3835-02 Standard test method for determination of properties of polymeric materials by means of a capillary rheometer.
3.
ASTM D 1238-04 Standard test method for melt flow rates of thermoplastics by extrusion plastometer.
4.
ISO 1133:2005 Plastics – determination of the melt mass flow rate (MFR) and the melt volume flow rate (MVR) of thermoplastics.
5.
GOST 11645-73 Plastics. Method for determining the melt flow index of thermoplastics.
