Super-heavy functional masterbatch, plastic product based on the masterbatch and method for producing the plastic product by rotational molding

Abstract

The invention discloses a super-heavy functional master batch. The super-heavy functional master batch is prepared from the following components: 20-70 parts of resin, 10-50 parts of a filler, 5-20 parts of a viscosity adjusting auxiliary, 5-50 parts of a functional auxiliary, 0.1-1 part of a processing thermal stabilizer and 0.1-2 parts of a processing lubricant, wherein the resin is PP, ABS or PA; the filler is barium sulfate, calcium carbonate, kaolin, mica or talcum powder; the invention further discloses a plastic product prepared from 40-60 parts of matrix plastic and 40-60 parts of super-heavy functional master batch; the invention further discloses a method for preparing the plastic product through rotational molding after the matrix plastic and the functional master batch are mixed and then heated to a certain temperature. According to the invention, after the matrix plastic and the functional master batch are heated to a certain temperature and then the rotational molding is carried out; under the effect of the centrifugal force, the high-density functional master batch moves towards an outer layer, so that the selective distribution of the functional auxiliary is achieved; the dosage of the functional auxiliary can be reduced and the performance of the products is improved.

Description

technical field [0001] The invention belongs to the field of organic polymer materials, and relates to a functional plastic, in particular to an overweight functional masterbatch, a plastic product based on the masterbatch and a method for preparing the plastic product by rotational molding. Background technique [0002] Chemically synthesized resin is limited by its own performance, and its strength, stability, processability, and functionality cannot meet the requirements of use, and cannot be directly used to produce plastic products. At present, it is generally used to add fillers or functional additives to improve its performance. performance. Various additives in the plastic products obtained by conventional injection molding technology are evenly dispersed in the matrix, in order to obtain plastic products with certain functions (such as flame retardant, antistatic, conductive, wear-resistant, weather-resistant, thermally conductive, luminescent or corrosion-resistant...

AI Technical Summary

Problems solved by technology

Masterbatch is one of the most important forms of plastic additives in the world today. It has the advantages of simple process, convenient use, easy production automation, improved labor productivity, and avoiding environmental pollution. However, if too much masterbatch is added, it will not only cause The cost rises, and it leads to an increase in processing difficulty and a decrease in material performance

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