pps proceeding - Abstract Preview
pps proceeding
Symposium: G06 - Polymer composites
Poster Presentation
 
 

Characteristics of Self-Reinforced Polymer-Veneer-Composites under Impact Stress

von Boyneburgk Claudia (1), Sälzer Philipp (1)*, Feldmann Maik (1), Heim Hans-Peter (1)

(1) Universität Kassel - Hesse - Germany

Self-reinforced thermoplastics offer interesting possibilities for technical applications. They combine exceptional mechanical properties, in particular excellent impact behavior, with an impressive lightweight construction potential. Additionally, they have good recycling qualities. Due to its low weight and comparatively high strength, wood has a high lightweight construction potential, too. In addition, wood impresses with its low carbon footprint. Three-layered composites were manufactured out of self-reinforced plastics (PURE®, polypropylene) and wood veneer (European beech, Fagus sylvatica) in a hot compaction process. The outer layers each consist of wood veneer, the middle layer of eight layers self-reinforced thermoplastic fabric. Of particular interest for composites manufactured out of wood and plastics, is to know how they behave under impact stress. To investigate the behavior of the manufactured composites under impact stress, instrumented dart drop tests (penetration and impact mode) were conducted. With the composites produced, it was possible to increase the maximum force in the dart drop test (penetration mode) by almost 300 % up to 4200 N in comparison to plywood (European beech) of comparable dimensions. The manufacturing of composites based on self-reinforced thermoplastics and wood veneer offers new interesting opportunities. Both, the self-reinforced polypropylene and the veneer show independently exceptional mechanical properties and, due to their low weight, a high lightweight construction potential. The combination of this materials leads to an innovative composite with interesting characteristics. Here, the excellent quasi-static and impact properties of the composite are to be mentioned. In addition, self-reinforced thermoplastic fabrics are also produced based on bio-based thermoplastics, such as PLA. This results in the possibility of producing a fully bio-based composite with outstanding mechanical properties.