28 april 2014   GC design and material project completed

 

Today the last report from Pezy Product Innovation of the design+materials project was received. This concluded a 6 months project that started with a detailed FEM analyses of the GC design. Experiences from several full size pilot projects lead to local modifications and strengthening of the GC design. The improved design is scaleable. As an 8 cm model GC seems a nice dimension for both material tests and waveguide tests at TU Delft or Deltares a mould for this size was designed and manufactured.

 

In a second phase a range of materials was selected and compounded by partners/suppliers. The materials only contained natural components. These were tested, mostly both in standard test bar and within the GC8 design. As many as 20 different compounds were used, often PLA or polystarch based. In the current project we looked especially for slowly biodegrading materials. "Slowly" in this case means that the material should maintain sufficient strength over at least a handfull of years in sea conditions. There is hardly knowledge available of biodegradation of bio-composites over such extended periodes. For GC applications the material should be strong, pretty stiff, heavy and suitable for injection moulding. A further strong requirement is full control of the "green"  degradation chain. These materials nor their degradation products should never, never give any contribution to plastic soup trouble and be fully acceptable for use in environmentally sensitive areas like e.g. our Waddenzee. Short summary: Clever combinations of "sand"  with PLA look promising. Further details are not disclosed here.

 

Initial calculations were done in collaboration with Deltares. Further modelling and most material tests were done in a project with Pezy Product Innovation in Groningen. The latter project was supported by a NIOF grant from SNN (Samenwerkingsverband Noord Nederland)

 

For more info mail to info@anome.nl