| 摘要 |
A composition comprises R-1243zf (3,3,3-trifluoropropene), R-134a (1,1,1,2-tetrafluoroethane) and R-32 (difluoromethane). The composition preferably has a low GWP and may further comprise a lubricant, a stabiliser or a flame retardant. The composition may be a refrigerant, a blowing agent, a foam or a sprayable composition. The composition may be used in a heat transfer device e.g. automotive air conditioning systems, chiller refrigeration systems. Also shown are methods of cooling, heating, extraction and cleaning using the composition.. |
