摘要:本論文通過將PP和POE以及HDPE在雙螺桿擠出機中共混擠出造粒，然后進行注塑制樣，對樣條進行性能測試，試圖制備高韌性聚丙烯材料。力學性能測試表明：在PP中加入POE、HDPE以后共混物的沖擊強度得到了提高，而拉伸強度、彎曲強度有所降低。熔體流動速率測試表明：隨著PP含量的增加，熔體流動速率上升。熱力學形變測試表明：隨著PP含量的增加，熱變形溫度升高。實驗結果表明：當在POE含量為15％和HDPE為10%時就可以顯著提高共混體系的沖擊強度，而共混物的拉伸強度和彎曲強度下降不是很明顯。

關鍵詞： PP；POE；HDPE；力學性能；熱變形溫度

Abstract：This paper by the PP and POE and HDPE twin-screw extruder CPC mixed extrusion granulation, and then injection molding system, the performance test for the spline, and trying to preparation of high-tenacity polypropylene. The mechanical properties tests show that: in the PP and POE, the impact strength of blends of HDPE later been improved, while the tensile strength, flexural strength decreased. The melt flow rate test: With the increase of PP content, the melt flow rate increased. Thermodynamic deformation test: With the increase of PP content, the thermal deformation temperature. The experimental results show that: when the POE content of 15% and HDPE 10% can significantly improve the impact strength of the blends, while the tensile strength and flexural strength of the blends drop is not very obvious.

Key words: PP；POE；HDPE；Mechanical properties; heat distortion temperature