0前言HFC制冷剂的ODP值为零,已经广泛地采用于空调制冷系统中以取代会引起臭氧层破坏的CFCs和HCFCs。但是HFC的高全球变暖潜能已经在近期引起许多国家和地区,特别在欧洲,日本和美国对HFC制冷剂有了更谨慎的看法。1全球变暖2009年11月,美国政府联合加拿大和墨西哥在第21次蒙特利 0 Introduction HFC refrigerants have an ODP value of zero and have been widely used in air conditioning and refrigeration systems to replace CFCs and HCFCs that cause damage to the ozone layer. However, the high global warming potential of HFCs has already caused many countries and regions in the near future. In particular, Europe, Japan and the United States have taken a more cautious view on HFC refrigerants. 1 Global Warming In November 2009, the United States government jointly with Canada and Mexico at the 21st Montreal