Rides, M (2000) Draft ISO standard for the determination of the transient extensional viscosity of polymer melts. NPL Report. CMMT(A)248

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Abstract

This document presents a proposal for a draft Standard for a method for determining the transient extensional viscosity of polymer melts. The document 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-l to 1 S-l and 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.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	CMMT(A)248
Subjects:	Advanced Materials Advanced Materials > Polymers
Last Modified:	02 Feb 2018 13:17
URI:	http://eprintspublications.npl.co.uk/id/eprint/1284

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