In-line ultrasonic check for detecting the partial vulcanization of a rubber mixture in the in situ silanization of bright fillers

In-line ultrasonic check for detecting the partial vulcanization of a rubber mixture in the in situ silanization of bright fillers

The invention relates to a method for checking the silanization of pale-colored fillers, where a mixture comprising at least one silanized pale-colored filler, preferably silanized silica, and comprising at least one rubber is irradiated with ultrasound waves in a frequency range of 4 to 10 MHz, pre...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wawrzinski, Lars, Schilling, Juergen, Graeff, Ludwig, Schroeder, Andreas
Format: Patent
Sprache:eng
Schlagworte:
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TESTING
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:The invention relates to a method for checking the silanization of pale-colored fillers, where a mixture comprising at least one silanized pale-colored filler, preferably silanized silica, and comprising at least one rubber is irradiated with ultrasound waves in a frequency range of 4 to 10 MHz, preferably of 5 to 7 MHz, and the signal strength of the ultrasound waves is determined after transmission through the rubber mixture, where the relative attenuation coefficient αrel of the rubber mixture in the frequency range of the ultrasound waves is determined, the standard deviation σ of the relative attenuation coefficient αrel is determined, and αrel and σ are used for detection of incipient crosslinking of the rubber mixture.