A Performance Evaluation of Environmentally Acceptable Foam Blowing Agents

Improvements in HCFC Microcell Appliance Foam

“…It is well known that the thermal conductivities of HCFC-123 and HCFC-141b gases are about 25% higher than CFC-11 [2]. It is also well known that commercial polyurethane appliance foams contain water in the formulas which generate carbon dioxide as the co-blowing agent with CFC-11.…”