Viscosity measurements and degradation

Down

You are here:

verschiedene Spritzguss-und-Probekörper aus Kunststoff

The flow behavior of plastics is determined by their viscosity. A distinction is made between melt viscosities (MVR / MFR) and solution viscosities, often expressed in viscosity numbers (VZ, IV or VN). Both measurements depend on the chain lengths of the polymers and the test conditions.

Degradation measurements

Injection molding processing or heat stress during use can lead to a shortening of the polymer chains. Viscosity measurements are used to determine polymer degradation during processing or ageing. Comparative measurements of material before processing (e.g. granulate) and component are always necessary.
For damage analyses, viscosity measurements are carried out on good and bad parts.

Flow paths

Spiral molds with different wall thicknesses are available at OMPG for investigating the dependencies of the flow path in injection molding on different additives.

Show test standards

Here you will find a list of all test standards for which we offer services in this area. All currently accredited standards can be found on the Accreditation page in our list of services.

Show test standards for Viscosity measurements and degradation

Contact

Plastic tests

Dipl.-Ing. Ute Schwarz

Phone: + 49 3672 379 - 420

Email: kunststoffpruefung@ompg.de

Search

Find test standards

You can search directly for specific standards using our range search or enter your keyword in the full text search.

Phone	+ 49 3672 379 - 0
E-Mail	info@ompg.de

Bosch standard N28 BN02-GF	Polyamide 66 reinforced with glass fibres
Bosch standard N28 BN07-GF	Polybutylene terephthalate, reinforced with glass fibres (PBT - Ultradur)
DIN 51562-3	Viscometry; determination of kinematic viscosity using the Ubbelohde viscometer; viscosity relative increment at short flow times
DIN 53014-1	Viscosimetry; capillary viscometers with circular and rectangular cross section for determination of flow curves; principles, concepts, definitions
DIN EN ISO 1133-1	Plastics – Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics – Part 1: Standard method
DIN EN ISO 1133-2	Plastics – Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics – Part 2: Method for materials sensitive to time-temperature history and/or moisture
DIN EN ISO 1628-1	Plastics – Determination of the viscosity of polymers in dilute solution using capillary viscometers – Part 1: General principle
DIN EN ISO 1628-5	Plastics – Determination of the viscosity of polymers in dilute solution using capillary viscometers – Part 5: Thermoplastic polyester (TP) homopolymers and copolymers
DIN EN ISO 307	Plastics – Polyamides – Determination of viscosity number
ISO 1628-4	Plastics – Determination of the viscosity of polymers in dilute solution using capillary viscometers – Part 4: Polycarbonate (PC) moulding and extrusion materials

Making toys safe - right from the start

TITK Group supports equipment purchase at High school

Successful premiere at Compamed

Viscosity measurements and degradation

Degradation measurements

Flow paths

Show test standards

Contact

Search

Find test standards

Other material properties

Material properties

Chemical analytics

Flammability testing and electrical applications

Aging and resistance

Biological testing

Special testing and test method development