Pretreatment Method for Microwave Digestion of Precursor Fibre and PAN-based Carbon Fiber
Determining the content of trace metal elements in carbon fiber and precursor fiber is very important for carbon fiber manufacturers to master the properties of carbon fiber and precursor fiber.As a rising sample pre-treatment method,microwave digestion can be applied to the digestion field of carbon fiber and precursor fiber due to its simple operation steps,short time-consuming and high accuracy.In this paper,the precursor fiber and car-bon fiber samples were pretreated by microwave digestion method,and the samples to be tested for ICP testing were prepared.The experimental results show that the microwave digestion method can be used instead of the traditional ashing method to digest the samples in the process of testing the content of trace metal elements in carbon fiber and precursor fiber,moreover,digestion samples with better accuracy and reproducibility of detection results were ob-tained.
carbon fiberprecursor fibercontent of trace metal elementsmicrowave digestion
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