Définition de 2F2 Foam Blowing Agents Catégorie de sources
HFCs are being used as replacements for CFCs and HCFCs in foams, particularly in closed-cell insulation applications. Compounds that are being used include HFC- 245fa, HFC-365mfc, HFC-227ea, HFC-134a, and HFC- 152a. The processes and applications for which these various HFCs are being used include insulation boards and panels, pipe sections, sprayed systems and onecomponent gap filling foams. For open-cell foams, such as integral skin products for automotive steering wheels and facias, emissions of HFCs used as blowing agents are likely to occur during the manufacturing process. In closedcell foam, emissions not only occur during the manufacturing phase, but usually extend into the in-use phase and often the majority of emission occurs at the endof- life (de-commissioning losses). Accordingly, emissions can occur over a period of up to 50 years or even longer.
Intergovernmental Panel on Climate Change (IPCC), 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Prepared by the National Greenhouse Gas Inventories Programme, Eggleston H.S., Buenida L., Miwa K., Ngara T., and Tanabe K. (eds.). IGES, 2006.
Available online at: http://www.ipcc-tfi.iges.or.jp/public/2006gl/index.html