An approach to non-destructive testing of aged polymers
An approach to non-destructive testing of aged polymers
复制标题
老化聚合物的无损检测方法
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
M. Webersen
中科院分区：
文献类型：
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作者：
E. Moritzer;M. Hüttner;B. Henning;M. Webersen
由于塑料的可塑性，塑料被应用于当今生活的各个领域。因此，聚合物必须满足各种要求，以能够保证各自组分的适用性。此外，在其操作时间期间，塑料暴露于稳定变化的环境影响，这导致聚合物老化。频繁的温度变化、潮湿、含盐介质和机械载荷就是这种影响的例子[1]。强度损失、材料性能变化（例如脆化）或老化过程导致的分子量降低只能在组件失效后检测到。此外，为了能够证明老化塑料部件的这些性能，必须采用破坏性测试方法，以便检查过的部件不能再使用，并且在任何情况下都要更换。[2，3]因此，在下面的测量程序将被引入，与老化的影响，在pla...
Because of the variably modifiable material qualities, plastics are used in every area of life nowadays. Therefore, the polymers have to meet various requirements to be able to guarantee the suitability for the use of the respective components. Besides, during their operation time the plastics are exposed to steadily changing environmental influences, which lead to the aging of the polymers. Frequent temperature changes, dampness, saline media and mechanical loads are examples of such influences [1]. Strength losses, changes in the material behavior, for example embrittlement, or a degradation of the molecular weight resulted from the aging process, can only be detected after the components’ failure. Besides, to be able to prove these properties in aged plastic components, destroying testing methods are necessary, so that the checked components cannot be used anymore and are to be exchanged in any case. [2, 3]Hence, in the following a measuring procedure will be introduced, with which aging effects in pla...