Two dynamometers measure the tensile and sliding force of films and foils. They are used for mechanical characterisations of extruded films/laminates. Tests performed:
– delamination resistance of laminated films
– weld strength
– static and dynamic coefficient of friction (COF)
– tensile load
Our laboratory is equipped with a Fourier-transform infrared spectrophotometer, which can characterise plastics by analysing the acquired FTIR spectrum and automatically comparing it with standard spectra. This tool is used for raw material acceptance and characterisation of extruded materials.
The colorimeter is used for measuring the absorbance and transmittance of extruded coloured films by measuring three (visible) light sources on the sample being tested.
By setting temperature, pressure and contact time, our laboratory welder tests the compatibility of two materials (tray + sealing film).
A microtome placed inside a cryostat is used. The sample to be tested is frozen inside the cryostat on a special ‘freezing bar’; once frozen and sectioned, stratigraphy is analysed using an electron microscope.
The Melt Flow Index (MFI) is a measure of the ease of flow of the melt of a thermoplastic polymer. It is measured by placing the polymer in a heated chamber, the melted polymer flows through a capillary rheometer: the weight of the polymer leaked in a given time corresponds to the Melt Flow Index. The greater the weight of the leaked material, the higher the Melt Flow Index, the lower the viscosity of the polymer.
Moisture content is measured using a thermobalance, which quickly and reliably determines the moisture content of materials with thermogravimetric analysis. The sample is weighed before and after superheating and the moisture content is deduced by weight difference.