High-concentration anti-electrostatic master batch and preparation method thereof

Abstract

The invention relates to high-concentration anti-electrostatic master batch and a preparation method thereof. The high-concentration anti-electrostatic master batch is prepared from 15-50 parts of a porous polymer carrier and 50-90 parts of an anti-electrostatic agent, wherein the porous polymer carrier is prepared from 80-95 parts of a polymer, 1-10 parts of mineral packing, 0.01-5 parts of a foaming agent, 0.01-0.5 part of a foaming aid and 0.01-0.3 part of a lubricant. The preparation method comprises the following steps: adding the anti-electrostatic agent into the porous polymer carrier, mixing until the anti-electrostatic agent is completely adsorbed, and discharging, thereby preparing the high-concentration anti-electrostatic master batch. The concentration of the anti-electrostatic agent in the prepared high-concentration anti-electrostatic master batch is as high as 70% or above, and the problem that the anti-electrostatic agent is not dispersed uniformly and is hardly mixed with resin in the production process can be effectively solved. The high-concentration anti-electrostatic master batch is simple in preparation process, easy to operate, beneficial to industrial production, applicable to large-scale popularization and application, and has remarkable price advantage, the labor intensity and the cost are also remarkably lowered.

Description

[0001] technical field [0002] The invention relates to the technical field of polymers, in particular to a high-concentration antistatic masterbatch and a preparation method thereof. [0003] Background technique [0004] With the rapid development of science and technology and electronics industry, the application of polymer composite materials is becoming more and more extensive. Although polymer materials have electrical insulation properties, they will generate static electricity due to collision, friction, extrusion, etc. during use; It will generate strong interference, and even cause fires and explosions in severe cases, which will bring huge harm and economic losses to personal safety, industrial production and society. Therefore, during the processing of polymer materials, it is necessary to add a certain amount of antistatic agent to reduce or eliminate the generated static electricity. At present, most of the existing antistatic agents are surfactants, which...

AI Technical Summary

Problems solved by technology

The traditional antistatic masterbatch preparation method is to mix the antistatic agent and polymer resin evenly in a mixer, and then melt and extrude it through a twin-screw extruder and then granulate it. This method has great limitations: 1. Antistatic agents are difficult to disperse evenly in polymer materials, especially powder and liquid antistatic agents; During the processing of the screw extruder, it will be decomposed in advance, so that the whole material cannot achieve the antistatic effect; 3. The addition of antistatic agent will easily cause the screw to slip, making the extrusion process unstable and increasing the difficulty of processing; 4. The content of antistatic ingredients in antistatic masterbatch is not high, generally about 30%-45%