Flame retardant additive plastic components (T06#)

• Subject Area: Joining and Separation Technology ; Lightweight Construction, Textile Technology ; Mechanical Process Engineering
• Term: since 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 61375930

The use of additive components is becoming increasingly diverse. For example, fire-protected parts are needed in applications for the electrical and automotive industries. In most cases, these properties can only be met to a limited extent by existing material systems. The transfer project aims to research innovative flame protection strategies for additive plastic components with increased fire protection and mechanical component behavior in the PBF-LB/P process to enable future series use of additively manufactured components for these applications. At the beginning of the project, a basic understanding of the fire behavior of additive plastic components will be established. Based on these results, suitable halogen-free flame retardants and incorporation strategies will be investigated, and flame retardant strategies for producing flame-retardant additive plastic components will be derived. Methods and results from subprojects A3, A6, and B3 of SFB 814 will be used as a basis for the project. This includes, for example, the process-adapted analysis from A6 and A3. This will be used to evaluate the material systems' process suitability and conduct fundamental research into the behavior of flame-retardant material systems. With the help of results from B3, the process behavior is analyzed and, if necessary, improved by adapted process strategies. In addition, aging processes will be analyzed and evaluated using methods from subprojects A4 and T1, and possible refreshment strategies will be derived. As a result, the fire behavior is determined quantitatively (LOI, UL 94) and qualitatively (Cone Calorimeter). The transfer project enables the development of a fundamental material and process understanding of the fire behavior of additively manufactured plastic components and the flame retardants used. Using halogen-free flame retardants can ensure environmentally compatible and ecological fire protection. With these findings, new series of applications can be developed in the future.

• DFG Programme: Collaborative Research Centres (Transfer Project)
• Subproject of: SFB 814: Additive Manufacturing
• Applicant Institution: Friedrich-Alexander-Universität Erlangen-Nürnberg
• Business and Industry: Clariant Plastics & Coatings (Deutschland) GmbH; EOS GmbH ; Elektro Opical Systems; PROTIQ GmbH
• Project Head: Professor Dr.-Ing. Dietmar Drummer