Structure-property relationships in commercial polyetheretherketone resins
Structure-property relationships in commercial polyetheretherketone resins
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DOI：
10.1002/pen.24472
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发表时间：
2017-09-01
影响因子：
3.2
通讯作者：
Roeder, Ryan K.
中科院分区：
文献类型：
--
作者：
Garcia-Leiner, Manuel;Reitman, Maureen T. F.;Roeder, Ryan K.
报告了市售聚醚醚酮 (PEEK) 树脂的标准流动级和高流动级的分子结构和最终性能之间的关键关系，这些树脂的不同之处主要在于分子量和分子量分布。尽管具有相似的化学和组成，但本研究中与 PEEK 树脂相关的分子尺寸依赖性结构差异显示出会影响加工过程中的结晶速率、最终结晶度和熔体流变学，从而影响机械性能，包括强度、延展性和抗冲击性。这些结构-性能关系提供了基本的理解，有助于工业和医疗设备的设计和制造，这些设备利用了所有 PEEK 树脂的共同优势，包括耐化学性和耐热性、机械强度和生物相容性，以及结晶动力学、熔体流变学、延展性和抗冲击性方面更细微的差异。聚合物。 ENG。 SCI., 57:955-964, 2017。(c) 2016 年塑料工程师学会
Key relationships between molecular structure and final properties are reported for standard flow and high flow grades of commercially-available polyetheretherketone (PEEK) resins that differ primarily in molecular weight and molecular weight distribution. Despite similar chemistry and composition, the molecular size-dependent structural differences associated with the PEEK resins in this study are shown to influence the crystallization rate, final crystallinity, and melt rheology during processing, which subsequently affects mechanical properties, including strength, ductility, and impact resistance. These structure-property relationships provide fundamental understanding to aid in the design and manufacturing of industrial and medical devices that leverage both the advantages common to all PEEK resins, including chemical and thermal resistance, mechanical strength, and biocompatibility, as well as more subtle differences in crystallization kinetics, melt rheology, ductility, and impact resistance. POLYM. ENG. SCI., 57:955-964, 2017. (c) 2016 Society of Plastics Engineers