论文部分内容阅读
众所周知,含氯的氟里昂(CFC,HCFC)制冷剂会破环大气臭氧层,对人类生存将造成危害,蒙特利尔协议书已规定CFC系列制冷剂被列为第一批被禁用的物质,汽车空调已逐渐用HFC134a代替CFC-12作为制冷剂。HFC134a虽对大气臭氧层没有破环作用,但它与常用的矿物冷冻机油不相溶,因而需要开发一种与HFC134a相溶性好的冷冻机油。初期采用的合成多元醇PAG油(Polyalokylene Glycol),对HFC134a的相溶性较好,但
As we all know, chlorofluorocarbons (CFC, HCFC) refrigerant will break the atmospheric ozone layer, will pose a threat to human survival, Montreal Protocol has provided CFC series refrigerant was listed as the first batch of banned substances, car air-conditioning HFC134a is used instead of CFC-12 as a refrigerant. Although HFC134a does not have a ring-breaking effect on the atmospheric ozone layer, it is incompatible with commonly used mineral refrigeration oils, and therefore, it is necessary to develop a refrigeration oil that has good compatibility with HFC134a. The initial use of synthetic polyol PAG oil (Polyalokylene Glycol), HFC134a better compatibility, but