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用毛细管流变仪研究了短玻璃纤维增强高密度聚乙烯复合材料流变性能；用扫描电镜、激光Ｒａｍａｎ光谱仪和相差显微镜，研究了复合材料毛细管挤出物的形态和基体的构象。结果表明，粘度与切变速率关系可用幂律模型表示；流动活化能（Ｅγ）随切变速率增加而减少；毛细管的剪切作用和挤出速度的增大，使纯ＨＤＰＥ反式构象增多，界面的粘接作用，又使基体ＨＤＰＥ的反式构象相应减少；复合材料中的ＨＤＰＥ晶体，主要呈纤维状和层状两种形式。
The rheological properties of short glass fiber reinforced high density polyethylene composites were investigated by capillary rheometer. The morphology and matrix conformation of the composite capillary extrudate were studied by scanning electron microscopy, laser Raman spectroscopy and phase contrast microscopy. The results show that the relationship between viscosity and shear rate can be expressed by power law model; the activation energy of flow (Eγ) decreases with the increase of shear rate; the shear effect and extrusion speed of capillary increase the trans conformation of pure HDPE, Interface bonding, but also to reduce the trans conformation of the substrate HDPE; HDPE crystals in the composite material, mainly fibrous and layered two forms.