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Product Group – Process Additives & New Effects The truth lies in the comparison The majority of the additives in this optimizing their own formulations. conditions. The equipment we use product group are multifunctional, The behavior of our additives under to test the effects of our additives on as they incorporate different effects. mechanical loads can be established by the heat deflection of thermoplastics Which effect is illustrated in the end a variety of methods. Some procedures and thermosets also requires specialist product often depends on the dosage are relatively uncomplicated in their knowledge. Among the tried-and- and mixture of the respective raw handling; others may require specialized tested methods that we use are HDT materials, and can differ depending on metrological expertise to interpret the (heat deflection temperature) and Vicat the intended application. That´s why we results correctly. - both standardized parameters in the subject our formulations to the most plastics industry. varied of load tests. The first group includes the steam jet tester using which we can, for example, If we want to test the behavior of our Often these test series serve to compare find out how good a coating adheres additives in thermoplastic PVC, we different dosages. As a result, we can to a substrate (metal or plastic). When use the conical, counter-rotating twin- also find out whether our additives combined with various other testing screw extruder to create compounds. interact with other components in methods, we can then evaluate and By comparison with a “co-rotating the customer´s formulation – and if optimize our adhesion promoter. extruder”, the shear forces are rather so, in which form. This means we can minimal, thus enabling a gentle avoid any undesirable side effects in The second group includes, for processing of the shear-sensitive PVC. our formulations. We can ensure that example, the dynamic mechanical We then really scrutinize the material our customers always receive tailor- analysis (DMA). We use this to establish behavior with HDT/Vicat to find out made additives for their products. At the brittleness and elasticity of plastics how we can optimize the formulation. the same time, we support them in and coating films. The advantage of this comparatively elaborate method is that it doesn´t destroy the material, in fact it permits us to draw conclusions about its behavior under changing Specifically for thermoplastics: HDT and VICAT test Adhesion test with the steam jet tester Conical, counter-rotating twin-screw extruder for PVC compounds 14


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