POLYETHERETHERKETONE (PEEK) - PROCESSING-STRUCTURE AND PROPERTIES STUDIES FOR A MATRIX IN HIGH-PERFORMANCE COMPOSITES
POLYETHERETHERKETONE (PEEK) - PROCESSING-STRUCTURE AND PROPERTIES STUDIES FOR A MATRIX IN HIGH-PERFORMANCE COMPOSITES
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DOI：
10.1002/pc.750070305
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发表时间：
1986-06-01
影响因子：
5.2
通讯作者：
SEFERIS, JC
中科院分区：
文献类型：
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作者：
SEFERIS, JC
研究了聚醚醚酮（PEEK）半结晶热塑性塑料作为高性能复合材料基体聚合物的加工、结构和性能。在加工具有不同堆叠的PEEK样品时，构造了能够以超过115°C/s的速度从其熔融温度冷却聚合物的专门设计的模具。此外，在加工研究过程中，发现PEEK在铜存在下发生反应。分析样品的结晶度值也提供了一种新的方法来测量在复合材料中的基体的结晶度。低结晶样品在二氯甲烷存在下，在室温下的结晶也证实了第一次与偏光显微镜。但同时也证实了PEEK优异的耐湿热性。最后，用不同堆叠的样品进行的动态机械和应力应变实验阐明了这些性质对结晶度的依赖性。然而，这项研究还阐明，在高性能复合材料的正常加工条件下，PEEK性能可能不会受到不同结晶度水平的强烈影响。
The processing, structure and properties of polyetheretherketone (PEEK) semicrystalline thermoplastic as matrix polymer for high performance composites has been investigated in this work. In processing PEEK samples with different crystallinities, a specially designed mold capable of cooling the polymer in excess of 115°C/s from its melt temperature was constructed. In addition, during processing studies, a reaction of PEEK in the presence of copper was discovered. Analysis of the samples in terms of their crystallinity values also provided a new method for measuring crystallinity of the matrix in the composite. Crystallization of low crystalline samples at room temperature in the presence of methylene chloride was also confirmed for the first time with polarized microscopy. However, at the same time, the excellent hygrothermal resistance of PEEK was also confirmed. Finally, dynamic mechanical and stress‐strain experiments with samples of different crystallinities elucidated the dependence of these properties to crystallinity. However, this study also elucidated that under normal processing conditions for high performance composites, PEEK properties may not be strongly affected by different levels of crystallinity.