Deformation behaviour of wholly aromatic copolyester(WAPET)fiber during axial compression was examined by means of polarizing optical microscopy,scanning eletron microscopy and X-ray diffraction.

• 借助偏光显微镜、扫描电子显微镜及X射线衍射等方法研究了全芳族共聚酯（WAPET）纤维轴压缩变形行为。