1.1 This test method describes the collection of absorption spectra of polyetheretherketone (PEEK) polymer in filled and unfilled grades, as supplied by a vendor, and the subsequent calculation of the percent crystallinity. The material is evalu-ated by infrared spectroscopy. The intensity (height) of the absorbance peaks is related to the amount ofcrystalline regions present in the material.
1.2 This test method can be used for PEEK consolidated forms, such as injection molded parts, as long as the samples are optically flat and smooth.
