The compatibility, crystalline structure, transitions and some mechanical properties of PEK-C/PEEK blends were studied by DMS, DSC, X-ray diffraction and Instron.

用挤出方法制备了新型聚芳醚酮（PEK-C）和聚醚醚酮（PEEK）共混物。对共混体系的相容性、转变、结晶结构及力学性能等进行了研究。

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There is also described a polymerization process using the alkali metal salt to yield PEK with high inherent viscosity and improved mechanical and thermal properties.

还描述了一种使用碱金属盐来生产具有高特性粘度和改善的机械和热性能的PEK的聚合方法。

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Interfaces between fibre and matrix in carbon fibre reinforced PEK-C composites and morphology of fracture interfaces of the composites are studied with SEM and ESCA techniques in this paper.

本文用SEM和ESCA技术研究了碳纤维增强PEK - C复合材料中纤维和基体间的界面及其复合材料的断裂界面形态。

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Investor Appeal Grade: C A big part of the problem with PEK is timing.

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In one town, Sulaiman Pek, government officials and religious and tribal leaders forged a peace deal.

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Market Vectors China A shares ETF ( PEK) has slumped 1.77% in the past three months.

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