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中文摘要：
对影响聚合物制品取向结构的传统加工因素做了分析总结，从微观结构形态分析论证了振动力场对制品取向结构的影响，指出动态成型加工与传统稳态加工相比能够有效提高制品的取向；对振动力场作用下的聚合物注塑制品进行力学性能测试和偏光红外测试。结果表明，与传统稳态加工相比，制品的拉伸强度有了明显的提高；采用红外光谱仪对动态注射成型制品的取向函数进行测定后，发现振动力场能够显著提高制品芯层的取向，尽管对制品皮层的取向提高不是很明显，但缩小了皮／芯层之间的取向差异，从总体上提高了制品取向；研究比较了在振动力场影响下制品取向函数与拉伸强度的变化规律，指出振动力场通过提高制品的取向结构来提高制品的力学性能。
英文摘要：
The influencing factors of orientation structure in conventional processing are studied in this paper, the effect of vibration field on the orientation structure is analyzed from microstructure configuration. It is found that dynamic molding processing can improve the orientation structure efficiently compared with the conventional molding processing method. The tensile strength of the products by vibration injection is superior to that by conventional processing. The orientation index of dynamic injection molded products is determined by infrared spectrometer. It is found that the orientation of core layer of the product was enhanced more evidently than the skin layer, thus the difference in orientation between the core layer and skin layer is decreased. It is showed that the mechanical properties can be improved by enhancing the orientation structure.
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