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Pontacol thermoplastic adhesive films are ideally suited for composite preforms
- JEC
- 2023-12-27
The specially developed adhesive films based on copolyester and copolyamide support the production of fibre-reinforced, duromer composite components, with the individual fibre/laminate layers being laminated with the slit adhesive film.
This creates a fixation of the dry fibre fabrics or scrims, which ensures the specified fibre orientation for further manufacturing. The fibre orientation is thus already guaranteed during the preforming and the contour of the layer cuts is retained. With minimal use of materials, an easy-to-use adhesive film eliminates the need for sewing threads or binders in liquid or powder form.
The coated fibre cuts can then be reliably stacked into two-dimensional preforms and, due to their thermoplastic properties, connected to one another by temperature or formed into three-dimensional components.
The preform produced in this way is suitable for all common resin infusion processes. The resin (e.g. epoxy resin 1500mPas) is introduced by vacuum or pressure (RTM).
The tailor-made properties of the adhesive films, which are tailored to the matrix properties, enable an optimal bond between duromer and thermoplastic. In addition to the advantages of simple and efficient production of preforms, the mechanical properties of the fibre-reinforced composites are also enhanced. In particular, the service life and susceptibility to damage are massively improved through increased impact strength and the components withstand higher mechanical loads.
