2223 EHL 下におけるポリマー添加油のレオロジー特性
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概要
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The effect of polymer on traction characteristics and oil film formability is studied using some polymer-containing oils of varying polymer concentration and molecular weight with an EHL tester. As a result, molecular weight of polymer has little effect on traction as well as oil film thickness affected by adding the polymer. This is presumably because the substantial shear thinning of polymer occurred in the inlet region of EHL contact, that makes their thickening power lose till the effect of molecular weight becomes negligibly small. At the EHL inlet region, the thickening power of polymer is mainly dependent on the polymer concentration instead of its molecular weight
- 2000-07-31
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- 2223 EHL 下におけるポリマー添加油のレオロジー特性