Micro-foamed multiphase fiber-reinforced polypropylene composite material and preparation method thereof
A fiber reinforced and composite material technology, applied in the field of micro-foamed multiphase fiber reinforced polypropylene composite material and its preparation, can solve the problems of difficult to achieve chain scission degradation, refractory degradation, etc., and achieve good mechanical property retention rate, structure The effect of dense distribution and high foaming rate
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[0038] Example 1
[0039] Weigh the components according to the data of Example 1 shown in Table 1, mix the components other than the glass chopped mat with the high-speed mixer uniformly, and put them into the main feeding bin of the twin-screw extruder. The glass fiber chopped strand mat is put into the side feeding bin, the extruder screw diameter is 35mm, the length-to-diameter ratio L / D is 40, the main engine speed is set to 150 rpm, and the temperature of each zone of the main cylinder (from the feeding port to the The outlet of the machine head is set to: 60°C, 160°C, 170°C, 180°C, 190°C, 190°C, 190°C, and the product is obtained after processes such as melt extrusion, cooling, granulation, and drying.
[0040] Table 1 Formulation of highly degradable micro-foamed multiphase fiber reinforced polypropylene composite materials (unit: grams)
[0041]
Example Embodiment
[0042] Example 2
[0043] Weigh the components according to the data of Example 2 shown in Table 1, mix the components other than the glass fiber chopped mat with the high-speed mixer uniformly, and put them into the main feeding bin of the twin-screw extruder. The glass fiber chopped strand mat is put into the side feeding bin, the extruder screw diameter is 35mm, the length-to-diameter ratio L / D is 40, the main engine speed is set to 150 rpm, and the temperature of each zone of the main cylinder (from the feeding port to the The outlet of the machine head is set to: 60°C, 160°C, 170°C, 180°C, 190°C, 190°C, 190°C, and the product is obtained after processes such as melt extrusion, cooling, granulation, and drying.
Example Embodiment
[0044] Example 3
[0045] Weigh the components according to the data of Example 3 shown in Table 3, mix the components other than the glass chopped mat with the high-speed mixer uniformly, and put them into the main feeding bin of the twin-screw extruder. The glass fiber chopped strand mat is put into the side feeding bin, the extruder screw diameter is 35mm, the length-to-diameter ratio L / D is 40, the main engine speed is set to 150 rpm, and the temperature of each zone of the main cylinder (from the feeding port to the The machine head outlet) is set to: 60°C, 160°C, 170°C, 180°C, 190°C, 190°C, 190°C, and the product is obtained after processes such as melt extrusion, cooling, granulation, and drying.
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