Accession Number : ADD010068
Title : Extrudate Swell Rheometer and Method of Using Same.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC
Personal Author(s) : Matta,Joseph E ; Harris,Jeffrey L
Report Date : 30 Sep 1982
Pagination or Media Count : 7
Abstract : Apparatus and methods for the measurement of the first normal stress difference of a polymeric solution by measurement of the extrudate swell, and for the measurement of the first normal stress difference of toxic fluids by measurement of the extrudate swell, and for accurately measuring smaller values of the first normal stress difference of polymeric solutions than possible with conventional available rheometers are described.
Descriptors : *Patent applications, *Rheometers, *Solutions(Mixtures), *Polymers, Rheology, Capillary tubes, Reservoirs, Stresses, Measurement, Inventions
Subject Categories : Physical Chemistry
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE