Norm

NEN-ISO 20965:2005 en

Kunststoffen - Bepaling van de transiënte extensionele viscositeit van gesmolten polymeer

73,12

Over deze norm

Status Definitief
Aantal pagina's 18
Commissie Kunststoffen
Gepubliceerd op 01-03-2005
Taal Engels
This International Standard specifies the general principles of a method for determining the transient extensional viscosity of polymer melts. The procedure details the measurement of polymer melt specimens stretched uniaxially under conditions of constant strain rate and constant temperature. The method is capable of measuring the transient extensional viscosity of polymer melts at Hencky strain rates typically in the range 0,01 s-1 to 1 s-1, at Hencky strains up to approximately 4 and at temperatures up to approximately 250 °C. It is suitable for measuring transient extensional viscosity values typically in the range from approximately 104 Pa.s to 107 Pa.s. A list of documents related to this International Standard is given in the Bibliography.

Details

ICS-code 83.080.01
Nederlandse titel Kunststoffen - Bepaling van de transiënte extensionele viscositeit van gesmolten polymeer
Engelse titel Plastics - Determination of the transient extensional viscosity of polymer melts

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