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发明公开
CN104592645A 一种低密度、低收缩、高抗冲聚丙烯复合材料及其制备方法 无效 - 驳回

一种低密度、低收缩、高抗冲聚丙烯复合材料及其制备方法
摘要：
本发明公开了一种低密度、低收缩、高抗冲聚丙烯复合材料及其制备方法，其中聚丙烯复合材料由以下原料按重量百分比组成：聚丙烯69-85％，高性能无机填料5-15％，弹性体增韧剂10-20％，稳定剂0.1-2％，其它添加剂0-5％。本发明的优点是：1、通过高性能无机填料、弹性体增韧剂和共聚丙烯的协同作用，获得了密度更低、韧性更好的聚丙烯复合材料。2、通过将高性能无机填料从侧喂料口加入的工艺方法，获得了综合性能更好的低密度、高抗冲聚丙烯复合材料。
摘要（英）：

The invention discloses a low-density low-shrinkage high-impact polypropylene composite material and a preparation method thereof. The polypropylene composite material comprises the following raw materials in percentage by weight: 69%-85% of polypropylene, 5%-15% of high-property inorganic fillers, 10%-20% of elastomer toughening agents, 0.1%-2% of stabilizers and 0%-5% of other additives. The low-density low-shrinkage high-impact polypropylene composite material and the preparation method thereof have the advantages that 1, the polypropylene composite material with lower density and preferable toughness is obtained through the synergistic effect of the high-property inorganic fillers, the elastomer toughening agents and co-polypropylene; 2, in addition, the low-density high-impact polypropylene composite material with preferable comprehensive property is obtained through a process method in which the high-property inorganic fillers are added from a side feed opening.

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