运用拓扑指数预测合成润滑油的粘度

PREDICTION OF VISCOSITIES OF SYNTHETIC LUBRICANTS USING TOPOLOGICAL INDEX

用拓扑指数预测了三组合成润滑油的运动粘度，其中第一组为烷基二苯基磷酸酯，其粘度与有关的拓扑指数回归的复相关系数Ｒ达０．９９９，剩余标准差Ｓ小于４．７６×１０（－２）ｍｍ２·ｓ（－１）；第二组为三酯，其Ｒ可达０．９９９９，Ｓ小于０．１００ｍ２·ｓ（－１）；第三组为双酯，其Ｒ为０．９９９，Ｓ小于２．９７×１０（－２）ｍｍ２·ｓ（－１）。结果表明，用拓扑指数来预测合成润滑油粘度的方法是可行的。

The viscosities of three groups of synthetic lubricants are predicted by using topological index method. The first group includes alkyl diphenylphosphates.The interrelational coefficient of their viscosities and related index regression is 0. 999 with a standard estimation error of 4.76 ×10￣(-2)mm￣2 /s.The second group includes trimethyloethane esters,and the interrelational coefficient is 0.9999 with a standard estimation error of 0. 100 mm￣2/s. The third group includes diesters, and the interrelational coefficient is 0. 999 with a standard estimation error of 2. 97 ×10￣(-2) mm￣2/s.