Adhesive properties of heat-sealed EVAc/PE films in dependence on recipe, processing, and sealing parameters
作者： M. Nase , L. Großmann , M. Rennert , B. Langer , W. Grellmann
DOI: 10.1080/01694243.2014.889431
关键词: Composite material 、 Mass fraction 、 Vinyl acetate 、 Adhesive 、 Bubble 、 Polyethylene terephthalate 、 Copolymer 、 Materials science 、 Plastics extrusion 、 Packaging industry
摘要: The investigated peel system in this study consists of a polyolefine-based, coextruded, three-layer film having ethylene-vinyl acetate (EVAc) copolymer at the interface, heat sealed against biaxial-oriented polyethylene terephthalate film. This can primarily be found packaging industry offering residue-free and non-destructive behavior. force required to separate joint depends on mass fraction vinyl (VAc) EVAc copolymer, processing conditions blowing process PE/PEVAc film, sealing parameters. In dependence parameters, standard with containing 18 wt.% VAc was investigated. parameters were varied among line blown their influence properties studied. As screw speed within extruder resulting layer thickness, cooling behavior bubble the...
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