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

An antistatic masterbatch, high-concentration technology, applied in the polymer field, can solve the problems that the antistatic agent is difficult to disperse evenly in the polymer material, the material cannot achieve the antistatic effect, and the antistatic agent is difficult to disperse evenly. Achieve low-cost, easy-to-operate, easy-to-mix results

Inactive Publication Date: 2015-07-01
HEFEI INNOVATION LIGHTWEIGHT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method for high-concentration antistatic masterbatch, comprising the steps of:

[0040] (1) Fully mix 100g polyethylene, 800g polypropylene, 25g calcium carbonate, 50g butane, 5g glyceryl monostearate, and 1g oxidized polyethylene wax, melt and blend in an extruder, extrude, After cooling and granulating, the primary particles of the polymer are obtained; the primary particles of the polymer are then foamed to prepare a porous polymer carrier.

[0041] (2) Put the porous polymer carrier prepared in (1) at 50°C for 2 hours in an electric blast drying oven;

[0042] (3) Heat the liquid organic amine salt antistatic agent in a constant temperature water bath at 50°C for 3 hours;

[0043] (4) Add 100g of the porous polymer carrier dried in step (2) and 100g of the antistatic agent treated in step (3) into the stirring tank at the same time, until the antistatic agent is completely absorbed by the porous polymer carrier and then discharged , to produce 50% an...

Embodiment 2

[0045] (1) Fully mix 850g polystyrene, 10g barium sulfate, 10g carbon dioxide, 1g glyceryl monostearate, 1g oxidized polyethylene wax, 2g stearic acid amide, melt blend in an extruder, extrude After cooling and granulating, the primary particles of the polymer are obtained; then the primary particles of the polymer are foamed to prepare a porous polymer carrier.

[0046] (2) Put the porous polymer carrier prepared in (1) at 60°C for 1 hour in an electric blast drying oven;

[0047] (3) Heat the liquid organic amine salt antistatic agent in a constant temperature water bath at 90°C for 1 hour;

[0048] (4) Add 30g of the porous polymer carrier dried in step (2) and 170g of the antistatic agent treated in step (3) into the stirring tank at the same time, until the antistatic agent is completely absorbed by the porous polymer carrier and then discharged , Prepare 85% antistatic masterbatch.

Embodiment 3

[0050] (1) Fully mix 800g polystyrene, 150g polyethylene, 50g barium sulfate, 50g titanium dioxide, 20g carbon dioxide, 30g nitrogen, 5g glyceryl monostearate and 1g polysiloxane, and put them in the extruder Melt blending, extrusion, cooling and granulation to obtain the primary particles of the polymer; then foam the primary particles of the polymer to prepare a porous polymer carrier,

[0051] (2) Put the porous polymer carrier prepared in (1) at 55°C for 1.5h in an electric blast drying oven;

[0052](3) Heat the liquid organic amine salt antistatic agent in a constant temperature water bath at 70°C for 2 hours;

[0053] (4) Add 100g of the porous polymer carrier dried in step (2) and 300g of the antistatic agent treated in step (3) into the stirring tank at the same time, until the antistatic agent is completely absorbed by the porous polymer carrier and then discharged , to produce 75% antistatic masterbatch.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L25/06C08K13/02C08K3/26C08K3/34C08K3/22C08K3/30C08K5/103C08K5/20B29C47/92B29B9/06C08J9/04C08J3/22B29C48/92
CPCC08L23/12B29C48/92B29C2948/9259B29C2948/92704C08J3/226C08J9/122C08J9/141C08J2203/06C08J2203/14C08J2203/182C08J2323/12C08J2325/06C08J2423/06C08J2423/30C08L25/06C08L2201/04C08L2205/03C08L23/06C08L23/30C08K2003/265C08K5/103C08K5/17C08K13/02C08K2003/3045C08K5/20C08L83/04
Inventor 郭洪武陶慷戴苍松高振兴余莉花李玉玲
Owner HEFEI INNOVATION LIGHTWEIGHT MATERIALS
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