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09-22-2010

Customized compounds

Customized to all Cases

Customized to all Cases

Construction or high-performance polymers can be customized to specific requirements by adding fillers and additives. This generates products with better properties of sliding friction, with defined electrical features, or compounds for medical applications. By supplying users with customized compounds, Ensinger Compounds HP Polymer GmbH, Lenzing, Austria, meets a high number of customers’ wishes.

Antimicrobial plastics, for instance, are used for medical purposes, because they prevent the growth of bacteria, yeast and mildew. This antibacterial effect is due to a patent dosing system that releases silver ions, in a targeted process. Another example are polymers with contrast agents added. From this material, medical plastics parts are produced, which are impervious to X-rays. This, for instance, makes surgical instruments or orthopedic test implants visible when submitted to radiographic inspection.

Tecacomp CSM compounds by Ensinger are electrically conductive, and consist of a plastic matrix, copper fibers and low melting metal. Their specific electric conductivity is approx. 5 x 104 S/m. Related to steel, this conductivity equals approx. 30 %.

A detectable filler integrated into the Tecacomp ID compound makes it possible to trace broken-off fragments by means of metal detectors within a short period of time, when performing standard process monitoring. This is due to increase safety in food processing. Inductively heatable compounds are also used in areas such as food and medical technology. By exactly controlling the temperature level by means of a alternating magnetic field, and by employing the Tecacomp ICH material, also thermally sensitive plastics can quickly be connected to each other. The compound contains ferric oxide coated with a silicate layer. This encapsulation prevents the metals from migrating into the polymer matrix. As fewer agglomerates are generated, no undesired interaction occurs. Even if heating rates are high, i.e. 200°C/s, virtually no hot spots are produced. The Curie temperature of 550°C is thus reached correspondingly fast. Even thick plastics parts can be welded to be gas-proof, thanks to the homogenous temperature distribution. This is possible with various types of plastics. If necessary, the plastics connections can be unbonded without force or destruction.

The entirely new type of compound material, Tecacomp LF, is made of leather fibers and polymer materials. If correspondingly modified, the compound can serve as a superior and environmentally friendly material enabling processing by injection molding or extrusion. Parts made from this material have outstanding features in terms of warm haptics, ideal humidity regulation, characteristic leather flavor, as well as optimum heat and sound isolation. Strength and density can be tuned to the respective requirements.

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