TraNa – Colorable and Flame-Resistant Sheet Molding Compo

Considering the high attention and relevance of climate change in all areas of technology, the development of environmentally friendly solutions is also becoming increasingly important in aviation. Especially in the cabin area, the use of ecologically efficient lightweight construction materials is important. Sheet Molding Compounds (SMC) offer a high potential here due to their high degree of design freedom at economical production costs, efficient manufacturing processes and the avoidance of environmentally harmful phenolic resins. SMC components are very often modified with particulate flame retardants to meet the stringent fire protection requirements (FST = Fire, Smoke, Toxicity) that apply in the cabin area. However, this requires high filling levels of these particles, which has a negative effect on the optical quality of the components (formation of streaks, lack of colorability), but also on the mechanical properties and leads to a high density. The fields of application of current SMCs in the aircraft cabin are therefore limited. Most applications in visible components have to be provided with a cost-intensive and environmentally harmful additional coating due to the insufficient optical quality. These aspects are major obstacles to the widespread use of SMC in the cabin. Furthermore, current SMCs are solely opaque. Translucent or transparent SMCs offer new application possibilities.

The objective of the joint project “TraNa” is the material and process development of a novel flame-retardant and at the same time translucent or homogeneously colorable SMC formulation for use in aircraft cabin components. Layered Double Hydroxides (LDH) nanoparticles will be used as novel flame-retardants.

Field of competence

Project status

  • Current


  • CompriseTec GmbH
  • Fraunhofer-Institut für Angewandte Polymerforschung IAP (Wildau)
  • Fraunhofer-Institut für Silicatforschung ISC (Würzburg)
  • jetlite GmbH
  • Nabaltec AG
  • Polynt Composites Germany GmbH
  • Recaro Aircraft Seating GmbH & Co. KG
  • Schill & Seilacher „Struktol GmbH“
  • Schmidt & Heinzmann GmbH & Co. KG



Florian Gortner

Postdoc Press & Joining Technologies

Telephone: +49 631 2017 439

Room: 58/372

The project “TraNa – Translucent Colorable and Flame-Resistant Sheet Molding Compounds based on Novel Nanoscale Flame Retardants for Applications in the Aircraft Cabin-Interior” is funded by the Federal Ministry of Economic Affairs and Energy (BMWi) on the basis of a decision by the German Bundestag (funding reference 20Q1902C).