This work describes a newly introduced experimental procedure to quantify the diffusion progress of mineral oils locally resolved in NBR. Diffusion of reference oils IRM 901, IRM 902 and IRM 903 in NBR with various acrylonitrile contents was investigated. Classical sorption experiments were performed as a basic characterization and compared to the newly introduced method. Here, elastomer specimens are only being dipped with the bottom in a relatively small reservoir of mineral oil. This provides a determination of locally resolved concentration profiles of mineral oils, and the calculation of diffusion coefficients. These diffusion coefficients follow the same trends like those determined via sorption experiments. Despite differences in the absolute numbers, activation energies of diffusion can be applied as a suitable measure for the compatibility of elastomers and fluids.

这项工作描述了一种新引入的实验程序，用于量化在NBR中局部分解的矿物油的扩散过程。研究了参考油IRM 901，IRM 902和IRM 903在NBR中具有各种丙烯腈含量的扩散。进行经典的吸附实验作为基本表征，并与新引入的方法进行了比较。在这里，仅将弹性体样品的底部浸在相对较小的矿物油储层中。这可以确定矿物油的局部解析浓度曲线，并计算扩散系数。这些扩散系数遵循与通过吸附实验确定的趋势相同的趋势。尽管绝对数字有所不同，