| 摘要 |
A heat transfer composition comprises trans-1,3,3,3- tetrafluoropropene (R-1234ze(E)), difluoromethane (R-32) and 1 ,1-difluoroethane (R-152a). The compositions are desgined to give higher flammable limit, higher ignition energy, and/or lower flame velocity. The compositions may be used to partially replace heat transfer agents with higher global warming potential such as refrigerants, heating agents, cooling agents, or foam blowing agents. |
