聚烯烃（POE）用作空调冷冻油时会造成毛细管堵塞问题。一种聚乙烯醚（PVE）油已经被开发出来解决这些问题。在实验室和实际设备中使用PVE和POE测试毛细管后，通过分析毛细管确定堵塞原因。PVE被证实在抵抗毛细管堵塞方面优于POE。单位:SICitation:研讨会，ASHRAE交易，1998年，第104卷，pt。1A，旧金山

Polyolester (POE) poses capillary tube blockage problems when it is used as an air-conditioner refrigeration oil. A polyvinylether (PVE) oil has been developed to settle such problems. The causes of blockage were determined by analyzing capillary tubes after testing them with PVE and POE in the laboratory and in actual equipment. PVE was confirmed to have superior performance over POE with respect to resistance of capillary tube blockage.Units: SI