Fire resistant interior parts for buses

Purpose and goal

Sustainable, cost-efficient flame-retardant (FR) systems for ABS were developed, exhibiting superior fire and smoke properties compared to available alternatives and processing and mechanical properties that are interesting for the aimed application in bus interior. The results provide a basis for future product development upon implementation of new tougher regulations, thus contributing to a safe and sustainable road transport. In the meantime, the project could additionally identify sustainable approaches to meet the current regulations (come into force 2020).

Expected results and effects

The project results provide a suitable knowledge base for future product development projects which will be needed upon implementation of new harsher requirements for fire and smoke toxicity in buses. It is also expected that the results may influence the formulation of a new regulation, as it could be shown that reduced flammability and smoke toxicity of ABS can be achieved without toxic or environmentally detrimental additives or increased thickness/weight of bus interior parts.

Planned approach and implementation

Based on indications about the coming regulation, the project has provided a systematic evaluation of sustainable FR systems. Based on these results, a sustainable FR ABS material could then be formulated that is relevant for the aimed application regarding mechanical and processing properties. Optimization was not possible as the formulation of the new regulation was delayed, but relevant information for further development was produced. In addition, approaches to meet the current regulations were evaluated regarding their technoeconomic feasibility and sustainability.