Wire drawing process for preparing high-toughness antioxidant PP plastic wire

Abstract

The invention discloses a wire drawing process for preparing a high-toughness antioxidant PP plastic wire. The preparation method comprises the following steps: 1, preparing the following raw materials in parts by weight: 200-220 parts of polypropylene, 50-80 parts of modified basalt fibers, 20-30 parts of epoxy resin, 5-12 parts of diisopropylbenzene hydroperoxide, 10-15 parts of dimethyl phthalate, 5-10 parts of diethylenetriamine, 1-3 parts of a composite antioxidant, 1-3 parts of an initiator and 5-10 parts of a plasticizer; 2, mixing the raw materials to obtain a mixture; and 3, transferring the mixture obtained in the step 2 into a screw extruder for melt extrusion, controlling an extrusion temperature to be 270-300 DEG C and an extrusion pressure to be 2-3 bar, and conducting cooling to obtain the high-toughness antioxidant PP plastic wire. The preparation method is simple in process step, friendly to environment and free of pollution, and the modified basalt fiber and the composite antioxidant are added, so the plastic wire is endowed with high toughness and excellent oxidation resistance.

Description

technical field [0001] The invention belongs to the technical field of plastic preparation, and in particular relates to a wire drawing process for the preparation of high-toughness and anti-oxidation PP plastic. Background technique [0002] Plastic filament is a monofilament formed after extrusion and stretching. It is often made of PE, PP, nylon, polypropylene multifilament, vinylon yarn, cotton yarn, and blended yarn as raw materials. Plastic filament is widely used in product packaging, transportation, etc. , industrial and agricultural production and many other fields, the toughness and oxidation resistance of plastic yarn during use are important indicators of its own performance. Traditional plastic yarn is to add related additives to raw materials, so as to improve the toughness and oxidation resistance of plastic yarn On the one hand, this process will affect the mechanical properties of the plastic itself due to the addition of additives, and the amount of additiv...

AI Technical Summary

Problems solved by technology

[0002] Plastic filament is a monofilament formed after extrusion and stretching. It is often made of PE, PP, nylon, polypropylene multifilament, vinylon yarn, cotton yarn, and blended yarn as raw materials. Plastic filament is widely used in product packaging, transportation, etc. , industrial and agricultural production and many other fields, the toughness and oxidation resistance of plastic yarn during use are important indicators of its own performance. Traditional plastic yarn is to add related additives to raw materials, so as to improve the toughness and oxidation resistance of plastic yarn On the one hand, this process will affect the mechanical properties of the plastic itself due to the addition of additives, and the amount of additives is large, consuming resources, which not only increases the production cost, but also makes the preparation process cumbersome. Therefore, providing a high toughness The wire drawing process for the preparation of anti-oxidation PP plastic is a technical problem that needs to be solved at present

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