Superfine talcum powder-polypropylene filled master batch, preparation method and equipment thereof
A technology of ultra-fine talc powder and filling master batch, which is applied in the field of preparing ultra-fine talc powder polypropylene filling master batch, can solve the problems of difficult temperature control, long mixing time, different product lengths, etc., and achieves plasticizing and dispersing efficiency. High, easy to wrap, and satisfactory appearance
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[0033] Example 1
[0034] Such as figure 1 with 2 Shown, a kind of equipment used to produce superfine talc polypropylene filled masterbatch, including high-speed mixer 1, feeder, twin screw extruder 4, crawler conveyor and cooling equipment 5 and hob pelletizer 7 ; The high-speed mixer is set above the feeder, the feeder outlet is connected with the feed inlet of the twin-screw extruder 4, the outlet of the twin-screw extruder 4 is connected with the crawler conveyor and cooling equipment 5 The feed port of the crawler conveyor and cooling device 5 is connected to the feed port of the hob pelletizer 7. The ratio of the outer diameter to the inner diameter of the screw of the twin screw extruder 4 is 1.8 to 1.9; the length to diameter ratio of the twin screw extruder (4) is 40 to 48. The crawler belt conveying and cooling equipment includes a crawler belt and a driving system arranged on it, and the driving system is used to drive the crawler belt. The track is woven from str...
Example Embodiment
[0043] Example 2
[0044] This example is the same as Example 1 except for the following features: 14 parts of polypropylene (PP resin) powder, 2.0 parts of white wax, 2.5 parts of stearic acid, 0.5 parts of antioxidants, and 80 parts of superfine talc The parts are mixed together, and the other equipment and process are the same as in Case 1.
Example Embodiment
[0045] Example 3
[0046] This example is the same as Example 1 except for the following features: 10 parts of polypropylene (PP resin) powder, 2.0 parts of white wax, 2.5 parts of stearic acid, 0.5 parts of antioxidant, 85 parts of ultrafine talc The parts are mixed together, and the other equipment and process are the same as in Case 1.
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