The Elastohydrodynamic Film Thicknesses of Binary Ester-Ether Mixtures
The Elastohydrodynamic Film Thicknesses of Binary Ester-Ether Mixtures
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二元酯-醚混合物的弹流动力学膜厚度
DOI：
10.1080/05698198108983054
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发表时间：
1981
影响因子：
2.1
通讯作者：
C. Hammond
中科院分区：
文献类型：
--
作者：
H. Spikes;C. Hammond
制备了不同比例的多元醇酯和聚苯醚（5 P4 E）的混合物，并在滚动点接触中测量了它们的弹性流体动力学膜厚度。已经发现，少量的多元醇酯降低5 P4 E的膜厚度远超过粘度值所预测的。对此的一种解释是，5 P4 E的压力-粘度系数对少量的多元醇酯非常敏感，并且仅用20%的多元醇酯就降低了5倍。这可能是由于酯作为增塑剂降低了5 P4 E的玻璃化转变温度。或者，5 P4 E可以在所研究的剪切速率范围内以非牛顿方式表现。1980年8月18日至21日在加州州弗朗西斯科举行的ASME/ASLE润滑会议上作为美国润滑工程师学会论文发表。
Mixtures of various proportions of a polyolester and a polyphenylether (5P4E) have been prepared and their elastohydrodynamic film thicknesses measured in a rolling point contact. It has been found that small amounts of polyolester reduce the film thickness of 5P4E far more than viscosity values would predict. One explanation for this is that the pressure-viscosity coefficient of 5P4E is very sensitive to small amounts of polyolester, and is reduced by a factor of five with only 20 percent of polyolester. This might result from the ester acting as a plasticizer in reducing the glass transition temperature of 5P4E. Alternatively, 5P4E may be behaving in a non-Newtonian fashion over the range of shear rates studied. Presented as an American Society of Lubrication Engineers paper at the ASME/ASLE Lubrication Conference in San Francisco, California, August 18–21, 1980.