Determination of formaldehyde emissions from coatings
We modified the accepted bottle method to ascertain formaldehyde emissions from materials such as coated sheet metal (determination of emissions in relation to the surface area of coatings in mg/m2)
Identification of particles from pumps/filters (material analysis)
To detect the source of damage, small black particles from a pump/filter were isolated and investigated by means of infrared spectroscopy (material characterization). By comparing the particles with reference materials, it was possible to identify the possible cause.
Test to determine the migration of LABS - substances that inhibit wetting from a seal
Sealing materials containing plastics may also contain substances that inhibit wetting. These sometimes only migrate from a material at high temperatures or after prolonged periods of use. Example: silicon seal.
Analysis of a layer forming on a powder coating
A white layer forming on the surface of a black powder coating when cleaned with benzene was found to be a wax constituent of the powder formula.
Interfacial characterization: detection of adhesion-inhibiting components on a substrate
A coating on side rubbing strips exhibited a contamination. At the interface between the plastic substrate and the coating, soluble non-volatile organic substances were identified, e.g. fatty acid esters and soluble filler constituents.
Production control of acrylate polymers
A test was performed on a dried layer of dispersion to ascertain whether selected acrylic monomers were polymerized in the mixture or separately and then added to the dispersion. The production of the dispersion could be traced by determining the glass transition temperature(s).