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Polyolefin Surface Modification During Injection Molding Using Radical Reactions in Liquid Phase
Author(s) -
Brunotte Rene,
Nagel Jürgen,
Mennig Günter,
Heinrich Gert,
Gehde Michael
Publication year - 2014
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.201300157
Subject(s) - polyolefin , materials science , polycarbonate , molding (decorative) , surface modification , surface energy , polymer , adhesive , wetting , fabrication , composite material , phase (matter) , compression molding , polymer chemistry , polymer science , chemical engineering , organic chemistry , mold , chemistry , medicine , alternative medicine , layer (electronics) , pathology , engineering
Owing to their good cost‐performance ratio polyolefins are very attractive polymers which are used in a variety of applications. However, painting or bonding of PP parts can cause problems due to inadequate adhesiveness. Today, different methods are available for pretreating the surface in order to improve its adhesive properties. These methods have the disadvantage that they are carried out as an additional fabrication step. Depending on the type of pretreatment this leads to high equipment and energy costs. In situ surface modification during molding is a new method to avoid such disadvantages. It was applied up to now for different thermoplastics. In this paper its application for the surface modification of polyolefins is reported. The differences in the processing details due to the use of a liquid modifier, which is advantageous for polyolefins, to the solid modifier films used, e.g., for polycarbonate are identified.