New Flame Retardant Solutions For Flexible PU Foams in Automotive Applications

摘要

There is a growing interest in new flame retardant solutions for flexible polyure-thane foams in automotive applications due to increasing OEM requirements such as lower emissions, enhanced aging properties and improved toxicity profiles. Different concepts can be used in order to address these requirements. In this presentation the pros and cons of these concepts (e.g., polymeric or reactive flame retardants) are discussed in general. In addition, new phosphorus-based flame retardants are presented and the performance of these products in flexible polyurethane foam is compared to other established flame retardants. Within the scope of the comparison, the effectiveness of these flame retardants in poly-ether as well as in polyester formulations in MVSS 302 fire test is demonstrated. Furthermore the impact of the different products on processing, foam properties and fogging/emissions is discussed. The results demonstrate that the new flame retardant solutions can help to match the increasing requirements for flexible automotive foams.