On-line rotational/oscillatory rheometrical device

The present invention refers to an on-line rotational/oscillatory rheometrical device inserted in the barrel of an extruder ( 1 ), composed of a main body ( 2 ), a cleaning ring ( 5 ) and a lower support ( 6 ), kept at a constant temperature, and a set of plates, upper ( 3 ) and lower ( 4 ) with an...

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Bibliographic Details
Main Authors COLACO COVAS JOSE ANTONIO, LOPES MAIA JOAO MANUEL LUIS, MOREIRA MACHADO COSTA PEDRO ANTONIO
Format Patent
LanguageEnglish
Published 03.06.2008
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:The present invention refers to an on-line rotational/oscillatory rheometrical device inserted in the barrel of an extruder ( 1 ), composed of a main body ( 2 ), a cleaning ring ( 5 ) and a lower support ( 6 ), kept at a constant temperature, and a set of plates, upper ( 3 ) and lower ( 4 ) with an adjustable separation, with the upper plate being animated with a rotating or oscillating movement, via a coupling to a rotation/measuring head of a commercial controlled-stress rheometer. The rotation of the ensemble allows a sample of material to be collected from the interior of the extruder and its subsequent rheological characterisation in the device.
Bibliography:Application Number: US20050058422