Among the additive manufacturing techniques, the Fused Filament Fabrication technique (FFF or Fused deposition modeling-FDM) is the most affordable as well as the easiest process to be implemented. Moreover this technique offers a wide range of materials able to be used. In some previous works we have, in order to obtain the desired mechanical properties of the final parts, studied the adhesion between two polymer filaments of different natures. Our approach was to formulate a new thermoplastic elastomer (TPE) filament having a good affinity with PLA. Ours first results were quite promising. The goal of this postdoctoral work is to go further in this formulation to develop biocompatible filaments with different elasticity properties and to evaluate the adhesion interface quality between the soft and rigid part (figure 1). Eventually a new TPE copolymer will be designed for the filament if required.

Publié le 24/03/2019