1.1 本试验方法描述了由供应商提供的填充和未填充聚醚醚酮（PEEK）聚合物吸收光谱的收集，以及随后结晶度百分比的计算。该材料通过红外光谱进行评估。吸收峰的强度（高度）与材料中存在的结晶区数量有关。 1.2 该试验方法可用于PEEK固结成型，如注塑件，只要样品在光学上平坦光滑。 1.3 科学研究证明了红外方法对工业级和医用级聚醚醚酮材料的适用性。 2. 3. 结晶度百分比与通过广角x射线散射（WAXS）结晶度测量进行校准的R-FTIR测量有关。 2. 3. 预计该试验方法涉及1305 cm附近的峰高 -1 和1280厘米 -1 将在根据试验方法进行的实验室间研究（ILS）中进行评估 E691 . 1.4 本试验方法不建议特定应用所需的结晶度范围。 1.5 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.6 本标准可能涉及危险材料、操作和设备。 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 聚醚醚酮聚合物的机械性能，如刚度或屈服强度，受结晶度的影响。 5. 通过该试验方法测定的报告结晶度指数与聚醚醚酮聚合物的结晶度百分比有广泛的相关性- 角X射线散射（WAXS）实验。 2. 3. 4.2 该测试方法可用于过程开发、过程控制、产品开发和研究。

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 evaluated by infrared spectroscopy. The intensity (height) of the absorbance peaks is related to the amount of crystalline 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. 1.3 The applicability of the infrared method to industrial and medical grade PEEK materials has been demonstrated by scientific studies. 2, 3 Percentage of crystallinity is related to R-FTIR measurement by calibration through wide-angle x-ray scattering (WAXS) crystallinity measurements. 2, 3 It is anticipated that this test method, involving the peak heights near 1305 cm -1 and 1280 cm -1 , will be evaluated in an Interlaboratory Study (ILS) conducted according to Test Method E691 . 1.4 This test method does not suggest a desired range of crystallinity for specific applications. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Mechanical properties of PEEK polymers, such as stiffness or yield strength, are influenced by the level of crystallinity. 5 The reported crystallinity index determined by this test method has been correlated with percent crystallinity in PEEK polymers by wide-angle X-ray scattering (WAXS) experiments. 2, 3 4.2 This test method may be useful for both process development, process control, product development, and research.