Home Ubersicht von Laborleistungen

Übersicht von Laborleistungen

Complete physical structure analysis

Complete physical structure analysis of e.g. yarns, films, strappings, etc.

Knowledge of the physical structure parameters in relation to your process parameters and properties of your product will boost the development of your novel processes or will support your trouble shooting.

  • Sonic modulus
  • X-ray diffraction
  • Density
  • Birefringence
  • FTIR spectroscopy
  • Solution viscosity


Thermal Analysis

  • Differential Scanning Calorimetry (DSC)

Normal scanning (Dynamic) DSC in heating and cooling.

Fast scanning DSC (hyper DSC up to 500K/min.).

Isothermal crystallization experiments at different temperatures, followed by Avrami analyses are performed and brought into an in-house developed model, which predicts both crystallinity and temperature as function of time and position in a plate or in a cylinder of your cooling polymer from the molten state.

Temperature Nuclei Free (TNF).

Reaction kinetics.

Thermo-oxidative degradation of polymers.

  • Thermo Gravimetric Analysis (TGA)
  • Thermo Stress Analysis (TSA)
  • Thermo Mechanical Analysis (TMA)

Free shrinkage or shrinkage force of films and yarns as a function of temperature.

Expansion coefficients.

Heat distortion or Vicat softening temperatures.

  • Dynamic Vapour Sorption (DVS)

Water absorption or desorption kinetics.

Water equilibria in polymers.

  • Dynamic Mechanical Analysis (DMA) of yarns and plastics


Rheological studies

  • Haake extrusion rheometer

The rheological behaviour of your polymer can be studied under realistic conditions with the Haake extrusion rheometer, equipped with several kinds of home-made devices, to control the moisture content of the chips, if needed. Simple apparent shear viscosity vs. apparent shear rate curves at your process temperature and conditions can be performed, but also master curves for rheological calculations are possible. Elongational viscosity can be measured, as well as the (Rheotens) melt strength curve. Small scale cast film and blown film devices are available. Also a very small-scale spinning device for 10filaments can be applied.

  • Goettfert capillary rheometer

For small amounts of granulate a capillary rheometer is available, equipped with a dryer as a dosing device.

  • Rheometrics controlled strain torsion rheometer

The molecular architecture of your polymer types, in terms of molecular weight and its distribution, tacticity (if monomer has a chiral centre) and branching, strongly affects its melt flow. Very often the rheology has proven to be extremely sensitive to changes in molecular structure.

This oscillating rheometer is not only a powerful tool in studying the above, but also in the determination of thixotropic or rheopectic behaviour of dispersions.

Temperature range -160 up to 300 °C.

  • Melt Flow Rate (MFR)


Mechanical properties

  • Linear densities
  • Instron measurements (breaking force - BF, breaking tenacity - BT, elongation at break - EAB, elongation atspecified force - EASF, elongation at specified tenacity- EAST)
  • Hot air shrinkage (HAS)
  • Rothschild entanglement testing
  • Tensorapid analysis on yarn regularity
  • Lenzing fiber shrinkage force measurements
  • Uster CV yarn regularity
  • Dynafil shrinkage force regularity

 

Quality measurements

Quality measurements of raw materials, chips, and fibers

  • Measurement of impurities by using Particles In Solution (Partisol)
  • Standard Filtration Test (SFT), including SEM analysis of the resulting filter
  • Friction (yarn-to-metal and yarn-to-yarn) properties
  • Measurement of water-repellent properties
  • Off-line measurement of finish distribution on (running) yarn
  • Finish on yarn content
  • Evaporation rate of finish (components)
  • Viscosity measurements of finish (components)
  • Qualitative determination of deposit formation
  • Visible-light microscopic techniques in both reflection and transmission. All polarised light-, interference-, and fluorescence techniques
  • Image processing of both microscopic and macroscopic images
  • Flory test equipment for mooring ropes applications

Beratung & Forschung

Weitere Informationen

Analysen und Anlagen

Weitere Informationen

Pilotanlagen & Spezialprodukte

Weitere Informationen

Aktuelles

Newsübersicht
  • 31-07-2018

    Vacature: Project Manager R&D

    Mehr lesen
  • 20-10-2017

    Application development with biopolymers

    Mehr lesen