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High molecular antistatic masterbatch

A polymer antistatic and antistatic technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of low strength, poor interface bonding, affecting the mechanical properties of polymer materials, etc.

Inactive Publication Date: 2007-04-11
SHANDONG TIANYE PLASTICIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional masterbatch production method is to use a coupling agent to treat the inorganic filler and then blend it with the polymer resin, but this treatment method is only combined with the polymer material at several points on the surface of the inorganic filler, that is, the interface between them The combination is not good, which affects the mechanical properties of polymer materials, such as low strength, poor toughness, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 100 parts by weight of conductive carbon black, 4 parts by weight of liquid paraffin, 10 parts by weight of ethyl acrylate, and 0.1 parts by weight of ammonium persulfate into the reactor, then add five times the weight of water, and heat to 50 ° C while stirring After the reaction is completed, dry to remove water, and pulverize to obtain the material coated with conductive carbon black. This conductive carbon black is easily dispersed in plastics and has little impact on the performance of the material.

[0016] 50% (percentage by weight) of the above-mentioned cladding material plus 3% polyethylene wax and 47% polyethylene are molded in a co-rotating building block type twin-screw extruder with a diameter of 75 mm and an aspect ratio of 36:1. Chemical granulation, the temperature of each section of the extruder is between 120 and 150 °C. After granulation, a non-toxic antistatic masterbatch is obtained.

Embodiment 2

[0020] Add 100 parts by weight of conductive carbon black, 15 parts by weight of styrene, and 0.5 parts by weight of potassium persulfate into the reactor, then add four times the weight of water, heat to 50°C and react while stirring. After the reaction is complete, dry Moisture was removed, and the material coated with conductive carbon black was obtained by pulverization.

[0021] 80% (percentage by weight) of the above-mentioned cladding material plus 4% polyethylene wax and 16% polypropylene are 75 mm in diameter, and the length-to-diameter ratio is 36: 1. For chemical granulation, the temperature of each section of the extruder is between 120 and 150 °C. After granulation, a non-toxic antistatic masterbatch is obtained.

Embodiment 3

[0023] 100 parts by weight of graphite, 4 parts by weight of liquid paraffin, 5 parts by weight of acrylonitrile, and 0.1 parts by weight of ammonium persulfate are added to the reaction kettle, then five times the weight of water is added, heated to 50 ° C and reacted while stirring, After the reaction is completed, dry to remove the moisture, and pulverize to obtain the graphite-coated material.

[0024] 70% (percentage by weight) of the above-mentioned cladding material plus 5% polyethylene wax and 25% ABS resin is 75 mm in diameter, and the length-to-diameter ratio is molded in a co-rotating building block type twin-screw extruder of 36:1 Chemical granulation, the temperature of each section of the extruder is between 120 and 150 ℃, and the non-toxic antistatic masterbatch is obtained after granulation.

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PUM

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Abstract

Disclosed is a high molecular antistatic masterbatch including inorganic electrostatic resistant gasket material and macromolecular resin, wherein the inorganic electrostatic resistant gasket material being coated by organic monomer to form clad material, comprising (by weight percent) clad material 50-80%, lubricating agent 3-5%, and balancing macromolecular resin. The forming process for the clad material comprises, mixing 100 weight parts of inorganic electrostatic resistant filling material, 2-15 weight parts of polymerisable monomer, 0.1-1 weight part of initiating agent, carrying out polymerization reaction, finally disintegrating.

Description

technical field [0001] The invention relates to a polymer antistatic masterbatch filled with inorganic fillers. Background technique [0002] Polymer materials include polyethylene, polypropylene, ABS, polyvinyl chloride, polystyrene and other polymers with relatively large molecular weights that are polymerized from resin monomers. Filling polymer materials with inorganic materials (fillers) can endow polymer materials with some special properties, such as flame retardancy, antistatic properties, rigidity, and reduce costs. Among them, polymer antistatic materials have a wide range of uses, and can be used to make internal and external shielding materials for high-voltage cables, mining pipes, electromagnetic shielding materials, packaging and transportation materials for electronic products, and so on. Its production method is generally made into a masterbatch first, and then the masterbatch and raw materials are produced together into a spec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/04C08K3/04C09K3/16
Inventor 付宇刚付宇经
Owner SHANDONG TIANYE PLASTICIZATION
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