| 摘要 |
PURPOSE:To provide a novel freon refrigerant having high thermal stability, keeping the original composition even after a long-term operation, and giving little troubles of the refrigerator, by mixing R-13B1 freon refrigerant with R-115 freon refrigerant. CONSTITUTION:The objective freon refrigerant is prepared by mixing (A) R- 13B1 freon refrigerant (CBrF3) with preferably 10-25wt% of R-115 freon refrigerant (CClF2-CF3), and if necessary, adding (C) 0.2-1wt/vol% of a polymeric hydrocarbon as a refrigerant additive to the above mixture. |
