Strain-induced Crystallization Behavior of Amorphous PEEK Prepared by Rapid Compression
Strain-induced Crystallization Behavior of Amorphous PEEK Prepared by Rapid Compression
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快速压缩制备非晶态 PEEK 的应变诱导结晶行为
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Shen Chang-Yu
中科院分区：
文献类型：
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作者：
Shao Chun-Guang;Li Qian;Zhang Rui-Jing;Liu Cheng-Gang;Wang Ming-You;Zhang Dou-Dou;Wang Song-Jie;Cao Wei;Shen Chang-Yu
聚乙烯的结晶行为用广角X射线衍射（WAXD）研究了不同拉伸温度（Td）和拉伸速度（v）下，快速压缩（RC）和急冷拉伸（QC）制备的聚醚醚酮（PEEK）结果表明，在相同的拉拔条件下，RC试样的临界结晶应变低于QC试样，且随拉拔温度和拉拔速度的提高而降低，RC试样的临界结晶应变随拉拔温度和拉拔速度的提高而降低，RC试样的临界结晶应变随拉拔速度的提高而降低，RC试样的临界结晶应变随拉拔温度和拉拔速度的提高而降低，RC试样的临界结晶应变随拉拔速度的提高而降低。同一温度下拉伸试样的结晶度随拉伸速度的增加变化不明显，且随着拉伸温度的升高，结晶度明显提高，结果表明，结晶度主要取决于拉伸温度。
The crystallization behavior of poly(ether-ether-ketone)(PEEK) prepared by rapid compression(RC) and quenched cold(QC) drawn at different drawing temperatures(Td) and drawing speeds(v) were studied by wide angl X-ray diffraction(WAXD).The results show that the critical crystallization strains of RC samples are lower than that of QC samples under the same drawing conditions and reduced with drawing temperature and speed increasing.The crystallinity of samples drawn under the same temperature changed unconspicuously with the drawing speed increasing.Moreover,as drawing temperature increased,the crystallinity is improved obviously.The results show that crystallinity depends on drawing temperature mainly.