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发明公开
CN103694569A 高性能汽车仪表板用PP复合材料的制备方法 无效 - 撤回

高性能汽车仪表板用PP复合材料的制备方法
摘要：
本发明涉及塑料改性技术领域，特别是涉及一种高性能汽车仪表板用PP复合材料的制备方法；其包括如下步骤：首先将原料用高速搅拌机搅拌混匀，然后转入双螺杆挤出机中熔融挤出，冷却，最后注塑成型即制得产品；所述原料由如下质量百分比的组分组成：均聚PP15%-25%，共聚PP30%-50%，滑石粉15%-25%，增韧剂12%-20%，偶联剂0.3%-0.6%，抗氧剂0.3%-0.5%，耐候剂0.1%-0.3%，润滑剂0.3%-0.5%，本发明提供的PP复合材料具有较高的抗爆破强度，可以满足中高档轿车的使用要求，适用于做高性能汽车仪表专用材料。
摘要（英）：

The invention relates to the technical field of plastic modification and particularly relates to a preparation method of a PP (polypropylene) composite material for a high-performance automobile instrument panel. The preparation method comprises the following steps: firstly stirring and uniformly mixing raw materials by using a high-speed stirring machine, then transferring into a twin-screw extruder for melting extrusion, cooling, and finally performing injection molding to prepare a product. The raw materials comprise the following components in percentage by weight: 15%-25% of homopolymerized PP, 30%-50% of copolymerized PP, 15%-25% of talcum powder, 12%-20% of toughener, 0.3%-0.6% of coupling agent, 0.3%-0.5% of antioxidant, 0.1%-0.3% of weathering agent and 0.3%-0.5% of lubricant. The PP composite material provided by the invention has relatively high anti-burst strength, can meet the using requirements of medium and high-grade cars and is suitable for being used as a special material for high-performance automobile instruments.

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