Authors Nagel, J. ; Brunotte, R. ; Hupfer, B. ; Grundke, K. ; Lehmann, D. ; Mennig, G.
Title Investigations into the chemical modification of polyolefin by radical reactions during molding
Date 16.07.2007
Number 14622
Abstract The surfaces of polyolefin parts are usually modified by separate processing steps. In this paper, we investigate how an in situ surface modification of polyolefins could be realized during molding, based on radical reactions, by which a macromolecule with functional groups is grafted to the polyolefin surface. The temperature of the melt is used to initialize the reactions. The different steps of the radical reaction chain were analyzed using model reactions. A modifier composition consisting of dibenzoylperoxide, potassium persulfate and poly(vinyl alcohol) revealed to be suitable. This composition was used for injection molding experiments. The bondability of the injection molded parts was largely enhanced.
Publisher Macromolecular Reaction Engineering
Citation Macromolecular Reaction Engineering 1 (2007) 480-487

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