HFC-365mfc FOAMING AGENT BLENDS

摘要

The phase out of HCFC-141b calls for alternatives. HFCs play a major role as easy to handle, high performance blowing agents. It is very likely, that customised HFC-blends will be used to meet the specific requirements of the different PU foam applications. Solkane~(~R)65mfc is a key component for HFC blends. A large-scale pilot plant for Solkane~(~R)65mfc started end of 1999, and the commercial plant will be on stream end of 2002. Besides high performance applications, fully formulated systems are a domain for HFCs to meet at the same time, quality and safety requirements. During recent years the industry has collected experience with Solkane~(~R)65mfc and blends thereof, and main formulations have been developed. This paper reports on skills, how to optimise PU formulations with new foaming agent blends, including quality, safety, cost and environmental aspects. This will assist producers to select the perfect solution, when replacing HCFC-141b with HFC-b!ends.