Groene bollen PTG Eindhoven.

Apparatuur & technieken

Voor onze Analyse & Advies projecten kunnen we gebruik maken van onze eigen infrastructuur, maar ook die van de TU/e.

Hieronder vindt u een overzicht van (een deel van) de apparatuur en technieken die bij PTG/e aanwezig zijn, inclusief een korte beschrijving hiervan.

U kunt dit overzicht van beschikbare analyse-apparatuur en -technieken ook downloaden als pdf bestand.


Equipment category


analysis techniques type

Confocal Raman spectroscopie


WITec Alpha 300R
Possible laser wavelengths
532nm, 633nm and 785nm
Typical sample size
1 – 1000 μm
Sample types
Most organic and inorganic samples
Bio-Rad database containing over 25.000 reference spectra
Molecular fingerprint
Confocal raman spectroscopy Characterization is a great method to research the Molecular fingerprint of most organic and inorganic samples.

Raman spectroscopy is similar to infrared spectroscopy in a way that both techniques are used to identify unknown substances. Raman spectroscopy uses a laser to interact with an unknown substance. Confocal Raman microscopy combines the Raman spectroscopy with an optical microscope, which provides extra spatial (vertical and horizontal) resolution of samples. Therefore, this technique is especially useful for microscopic defect analysis. Analyses can be performed in 1D, 2D and 3D with spot sizes of less than 1,0 μm.

Contact angle


OCA-20 Contact Angle Measuring Instrument (DataPhysics Instruments GmbH)
Water, hexadecane
Contact angle
Contact angle measurement.

Contact angle measurements can be done on flat surfaces to determine its hydrophobic or hydrophilic behavior. A total of 10 drops will be placed on the to be measured surface which are then imaged by a camera. Via the software the contact angle at the left and right size is than calculated, and gives an average over the 10 droplets. With contact angle measurements a variation of +/- 3° in between measurements is within the tolerance limits.

Differential Scanning Calorimetry (DSC)


TA Instruments Q2000
Temperature range
-90 to 400 °C
Maximum heating rate
50 K/min
Typical sample size
3-5 mg
Type of DSC pans
Aluminum, hermetic, high-pressure
Glass transition temperature (Tg)
Melting/crystallization temperature
Heat capacity
Phase change enthalpy
DSC Q2000 is a research-grade DSC with superior performance in baseline flatness, precision, sensitivity, and resolution we use this often in our research.

DSC is used to obtain information from materials based on the response to change in temperature. It can reveal phase changes like melting, crystallization or a glass transition, which can help to identify polymers or provide compositional information (particularly when combined with other analytical techniques). The data can also be used to determine a material’s initial processing parameters. Furthermore, various kinetic events can be analyzed, such as curing or oxidation reactions.

Dynamic Mechanical Thermal Analysis (DMTA)


TA Instruments Q800
Temperature range
-140 to 600 °C
Frequency range
0.01 – 200 Hz
Maximum force
18 N
Dual / single cantilever
3-point bending
Viscoelastic behavior of materials
Thermo-mechanical properties
Glass transition temperature (Tg)
Coefficient of Thermal Expansion (CTE)
DMTA Q800 techniques.

DMTA is a technique used to analyze the viscoelastic behavior of a material as a function of temperature of frequency. From the resulting variation in material stiffness, properties such as the glass transition temperature (Tg) can be determined. Transitions corresponding to other molecular motions can be identified as well.

Gas chromatography mass spectrometry (GC-MS)


PerkinElmer Clarus 690 GC & SQ8T MS
Carrier Gas
Mass spectrum
Materiaal identificatie
For identification and quantitation of volatile and semi-volatile compounds (VOC and SVOC). We use GC-MS, Gas Chromatography Mass Spectrometry. It delivers high throughput, rugged dependability, and great results.

Gas Chromatography combined with Mass Spectrometry is a way to identify or quantify (semi) volatile compounds. The sample is injected into the GC-MS and separated based on boiling point and affinity with the column. The separated components are than detected with a Mass Spectrometer resulting in a mass spectrum unique for a material. The obtained mass spectra are run through the NIST database to identify the detected components.

Impact testing (Izod & Charpy)


Zwick/Roell HIT5.5P
Temperature range
Room temperature
IZOD (ISO 180 & and ASTM D256) and Charpy (ISO 179)
Karch Manual notching machine
Sample geometry
IZOD ISO 80x10x4 mm / ASTM 64×12.7×3.2 mm
Impact energy, Impact strength
With the impact-tester is how we test the strength of a material. “If you accidentally drop your Child's toy on the ground, you don’t want it to break. A Charpy impact test can be performed on polymer materials to analyze mechanical properties. These properties are very important when it comes to designing and producing common polymer products such as toys”.

The impact test is a standardized method for analyzing the toughness or brittle-fracture sensitivity of a material.

Measurements are carried out with a Zwick/Roell HIT5.5P impact tester equipped with all hammers suitable for use with plastics. Measurements can be carried out at room temperature as per IZOD (ISO 180) or Charpy (ISO 179). The specimens can be notched with the help of a standardized notch-cutting machine.

The (notched) impact value is defined as the energy lost per unit of specimen thickness (at the notch).