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聚丙烯注塑件结晶形态的研究
Crystal Morphology of Injection Molding Parts of Polypropylene
【摘要】 用X射线衍射法测定了注射成型聚丙烯的结晶度,并用偏光显微镜法观察了它的结晶形态。结果表明,聚丙烯结晶度随着距离浇口位置的增加而减小,并观察到表芯结构中纤维晶层的厚度随着注射温度的升高而减小。
【Abstract】 The crystallinity of polypropylene was measured by X-ray diffraction method. The crystal morphology was observed under a polarizing optical microscope.The results show that the polypropylene crystallinity decreases with the increasing of the distance from the gate.The skin layer of the fiber crystal of skin-core structure is thinner in the higher in- jection temperature.
【关键词】 X射线衍射法;
偏光显微镜法;
注塑;
聚丙烯;
结晶度;
表-芯结构;
【Key words】 X-ray diffraction method; polarizing optical microscope method; injection molding; polypropylene; crystallinity; skin-core structure;
【Key words】 X-ray diffraction method; polarizing optical microscope method; injection molding; polypropylene; crystallinity; skin-core structure;
【基金】 国家自然基金重大项目(基金号10590352)
- 【文献出处】 现代塑料加工应用 ,Modern Plastics Processing and Applications , 编辑部邮箱 ,2007年01期
- 【分类号】TQ325.14
- 【被引频次】3
- 【下载频次】312