T/CCFA 00012-2022 Active Group standards

T/CCFA 00012-2022 Qualitative Identification Method for Graphene Materials in Fibers

T/CCFA 00012-2022

Publish Date: 2022-11-15 Implement Date: 2022-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CCFA 00012-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Artificial fibers

Publish Date: 2022-11-15

Implement Date: 2022-12-01

Scope

Main technical content: 1. Identification principle: Remove polymer interference and enrich target samples through dissolution and centrifugal separation. Use the characteristic signals of graphene materials in Raman spectroscopy, atomic force microscopy (AFM), and X-ray diffraction (XRD) to determine whether graphene materials exist in the fibers. 2. Judging principle: In the test results, the following conditions must be met simultaneously: 1. There is a clear G peak in the Raman spectroscopy; 2. The microscopic morphology (AFM) exhibits significant two-dimensional characteristics; 3. There are no obvious crystallization peaks at 26°–27° in the XRD spectrum, or the crystallization peak half-width is greater than 2.3°. Only then can it be determined that "the fiber contains graphene materials".