Ice can be used as the secondary refrigerant. A kind of paraffin microemulsion is prepared as a new ice slurry medium. The crystallization temperature of the microemulsion is no lower than 0.7 °C. The ice percent factor (IPF) of ice slurry prepared with oil-water mass ratio of 1:8 is smaller than that with oil-water mass ratio of 1:9. The addition of hexanol can effectively prevent the ice slurry from adhering to the wall and improve the fluidity. The apparent viscosity of ice slurry increases with the increase of IPF. No phase separation of the microemulsion is found during ice slurry melting/freezing cycling. The morphology and growth process of ice crystals in the formation of ice slurry are different with different experimental temperatures. The higher the supercooling degree, the faster the ice crystals grow.

冰可用作二次制冷剂。制备了一种石蜡微乳作为新型冰浆介质。微乳液的结晶温度不低于0.7℃。油水质量比为1:8制备的冰浆的冰百分比系数(IPF)小于油水质量比为1:9的冰浆。己醇的加入可以有效防止冰浆粘壁，提高流动性。冰浆的表观粘度随着IPF的增加而增加。在冰浆熔化/冷冻循环过程中没有发现微乳液的相分离。冰浆形成过程中冰晶的形态和生长过程随实验温度的不同而不同。过冷度越高，冰晶生长越快。