3D printing has established itself in recent years as one of the most flexible and innovative technologies available. However, as with any technology, there are challenges that must be overcome. One of these challenges is flame retardancy of materials. Particularly in safety-critical areas such as aerospace, the automotive industry or the electronics sector, the use of flame-retardant materials is essential.

Onyx FR: Carbon Fibre-Reinforced Plastic with Flame Retardancy

Onyx FR is a carbon fibre-reinforced plastic specifically developed for applications requiring both high strength and flame retardancy. The addition of carbon fibres gives the material exceptional stiffness and strength.

Properties and Applications

Onyx FR offers a combination of high mechanical performance and improved flame retardancy, making it ideal for applications in aerospace and automotive engineering. The material meets UL94 V-0 standards, meaning it is self-extinguishing within 10 seconds of removing the ignition source and does not produce burning drips.

Another highlight of Onyx FR is its temperature resistance. The material can withstand temperatures of up to 150°C without its structural integrity being compromised.

PETG-FR: Flame-Retardant Plastic for Everyday Use

PETG (polyethylene terephthalate glycol) is a widely used plastic known for its ease of processing and good mechanical properties. PETG-FR is a modified version of this material that has been enhanced through the addition of flame-retardant additives.

Properties and Applications

PETG-FR is a versatile material that offers a good balance between strength, toughness and flame retardancy. Unlike Onyx FR, which is primarily used in industrial applications, PETG-FR is also suitable for everyday products such as electronics housings, household appliances and even furniture. It also meets UL94 V-0 standards.

Another advantage of PETG-FR is its low tendency to warp during printing. This facilitates the production of complex geometries and large components.

Scientific Perspective and Future Development

Research in the field of flame-retardant materials for 3D printing is a dynamic field. Scientists are continuously investigating new additives and material combinations to improve flame retardancy without compromising the mechanical properties of the materials.

Furthermore, there are efforts to develop more environmentally friendly flame-retardant additives. Phosphorus- and nitrogen-based systems are promising candidates that could be used in future 3D printing materials.

Conclusion

Flame-retardant materials such as Onyx FR and PETG-FR offer decisive advantages in 3D printing for applications with high safety requirements. While Onyx FR impresses with its high strength and temperature resistance, PETG-FR provides a versatile and user-friendly solution for everyday applications. Ongoing research will undoubtedly lead to even more capable and environmentally friendly materials.

Sources

  1. Lyon, R. E., & Walters, R. N. (2018) – “Nanoparticle fire retardants: Current status and future prospects.” Polymer Degradation and Stability, 158, 173-181.
  2. Granzow, A. (2020) – “Phosphorus-based Flame Retardants in 3D Printing.” Journal of Applied Polymer Science, 137(47), 49398.

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