EVA改性PE共混物力学性能和流变性能的研究

Study on Mechanical and Rheological Properties of PE/EVA

讨论了橡塑共混比、填料用量等因素对乙烯－醋酸乙烯共聚物（ＥＶＡ）改性ＰＥ共混物力学性能和流变性能的影响。试验结果表明，ＥＶＡ弹性体的加入降低了共混物的拉伸强度，提高了扯断伸长率及共混物熔体的流动性；活性碳酸钙的加入使共混物的拉伸强度、扯断伸长率和流动性下降；ＨＤＰＥ的加入提高了共混物的拉伸强度，但扯断伸长率和流动性下降。

The influence of the blend ratio and the filler level on the mechanical and rheological properties of PE/EVA blend was investigated The results showed that the tensile strength decreased,and the elongation at break and the melt flow property improved by the addition of EVA to the blend;the tensile strength,the elongation at break and the flow property decreased by the addition of active calcium carbonate;the tensile strength increased,and the elongation at break and the flow property decreased by the additon of HDPE