Carrier-free plastic master batch and preparation method and application of carrier-free plastic master batch

Abstract

The invention belongs to the technical field of plastic master batches, and discloses a carrier-free plastic master batch and a preparation method and an application of the carrier-free plastic master batch. The method comprises the following steps: mixing a plasticizer with an functional assistant; heating, melting and evenly stirring to obtain a mixture; adding the mixture to a granulating device so that the mixture freely falls off from holes of a cylindrical rotator, cooling and solidifying, so as to obtain the carrier-free plastic master batch, wherein the granulating device comprises the horizontally placed cylindrical rotator and a circulating band; holes are fully distributed on the side of the cylindrical rotator; and the circulating band is arranged below the cylindrical rotator. The carrier-free plastic master batch disclosed by the invention has the characteristic of strong general performance without addition of a plastic carrier; various functional assistants are good in dispersity; the obtained master batch is good in physical property, stable, and not easy to smash and disperse; high-speed kneading (or banburying) or single / dual screw extruder is not needed; and the problem of poor performance caused by secondary processing of traditional carrier master batches is avoided, thus the carrier-free plastic master batch can be widely applied to polyolefin and engineering plastics.

Description

technical field [0001] The invention belongs to the technical field of plastic masterbatch preparation, in particular to a carrier-free plastic masterbatch and its preparation method and application. Background technique [0002] Plastic raw materials must be made into plastic material products, and only through processing can they be made into plastic materials. The most commonly used methods for molding (thermoplasticity) under high temperature conditions are extrusion, injection molding, calendering, casting, blow molding, blister and thermoforming. forming. Plastic materials have the advantages of light weight, high strength, excellent electrical properties, easy processing and molding, and bright colors, so they have become the most active field of material systems, and their applications in other fields are also expanding. From people's daily necessities, medical , agriculture and fishery, automobile, electrical and chemical construction, defense industry, aerospace a...

AI Technical Summary

Problems solved by technology

[0005] (1) The masterbatch is too loose, and it is easy to be broken up and powdered during transportation and use;

[0006] (2) The degree of dispersion of the masterbatch is not high, and it cannot be well and evenly dispersed in the plastic during use, and subsequent processing is difficult;

[0007] (3) Because it adopts an open process, the environment is poor, the loss is large, and the efficiency is low, resulting in a higher cost than traditional filler masterbatches

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