Polypropylene composition toughened by elastomer and preparation method of composition
A polypropylene composition and elastomer technology, applied in the field of elastomer toughened polypropylene composition and its preparation, can solve problems such as insufficient toughness of polypropylene, and achieve the effects of good fluidity, lower cost and better compatibility
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[0037] Example 1
[0038] Put 50 parts of homopolypropylene, 5 parts of metallocene propylene-ethylene elastomer, 20 parts of talc, 0.1 part of antioxidant 1010, and 0.2 part of antioxidant 168 into a high-speed mixer for dry mixing for 3-5 minutes, The mixed raw materials are melted and extruded with a twin-screw extruder and pelletized. The temperature of the feed section is 160°C, the temperature of the compression section is 180°C, the temperature of the plasticization section is 200°C, the temperature of the homogenization section is 200°C, and the die temperature is 190°C.
[0039]
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[0043] Example 2
[0044] Put 70 parts of random copolymer polypropylene, 3 parts of metallocene propylene-ethylene elastomer, 12 parts of calcium carbonate, 0.15 parts of antioxidant 1010, and 0.3 parts of antioxidant 168 into a high-speed mixer for dry mixing for 3-5 minutes , The mixed raw materials are melted and extruded with a twin-screw extruder for granulation. The temperature of the feed section is 180°C, the temperature of the compression section is 220°C, the temperature of the plasticization section is 220°C, the temperature of the homogenization section is 220°C, and the die temperature is 220°C.
[0045]
Example Embodiment
[0049] Example 3
[0050] Put 90 parts of block copolymer polypropylene, 1 part of metallocene propylene-ethylene elastomer, 5 parts of barium sulfate, 0.2 parts of antioxidant 1010, and 0.4 parts of antioxidant 168 into a high-speed mixer for dry mixing for 3-5 minutes , The mixed raw materials are melted and extruded with a twin-screw extruder for granulation. The temperature of the feed section is 170°C, the temperature of the compression section is 200°C, the temperature of the plasticization section is 210°C, the temperature of the homogenization section is 210°C, and the die temperature is 200°C.
[0051]
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