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The Thermodynamic and Procedural Processes of in-situ Surface Modification during Injection Molding

Conventional methods of surface treatment like plasma treatment or corona treatment require additional energy after the moulding process to modify the surface of the moulded part. The in-situ modification is a new procedure where the surface activation happens during the moulding process. The thermal energy of the moulding process is used for initiation of a chemical reaction which couples the polymeric modifier onto the surface of the moulded part. The most important influence on the modification has the temperature regime during the injection. For that reason the temperature in the boundary layer between the part and the mould was determined by simulation. Experimental results show that the shear strength of bonded modified specimens can be increased this way.

Lesen Sie die deutsche Zusammenfassung auf Kunststoffe.de
Author
 René Brunotte

René Brunotte
Lehrstuhl für Kunststofftechnik
Technische Universität Chemnitz

Information

Free keywords: Injection molding, surface modification, surface activation, pressure-shear strength, heat-transfer coefficient, temperature measurement, mold filling simulation, polycarbonate, polypropylene
Institute / chair: Fakultät Maschinenbau der Technischen Universität Chemnitz
Language: German
Technical consultant for expert services: Prof. Dr.-Ing. Günter Mennig (Betreuer), Prof. Dr.-Ing. Ernst Schmachtenberg, Prof. Dr.-Ing. Bernd Platzer
Publication year: 2006
Provider: Wissenschaftlicher Arbeitskreis Kunststofftechnik (WAK) / Kunststoffe.de

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