Study on the testing standard of graphene-modified fiber
Graphene modified-fiber has been widely studied and applied.It is necessary to study the testing standards of graph-eme-modified fibers and summarize effective testing methods.The existing graphene-modified fiber testing standards are divided into qualitative standards and quantitative standards.It is concluded that after adding a pretreatment step in the qualitative analysis to extract the graphene material in fiber,using transmission electron microscopy as the main testing method can improve accuracy.However,only analyzing by Raman spectroscopy cannot be used for accurate qualitative analysis of graphene-modified fiber.Exist-ing quantitative standards are mainly tested by elemental analysis or thermogravimetric analysis.After analyzing the standard prin-ciples and test procedures,it is found that the current quantitative standards cannot accurately test the content of graphene materials in fibers.It is necessary to study the testing method of whether the additive in the fiber is pure graphene and the separation method of graphene and other carbon materials to improve the quantitative analysis of grapheme-modified fiber.
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