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Antistatic polyolefine grain and its preparation

A polyolefin, antistatic technology, applied in the field of processing or batching process, can solve problems such as the inability to reach the technical level of quality and safety standards

Inactive Publication Date: 2004-05-26
SHANGHAI SANCHENG MACROMOLECULE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for those with high anti-static requirements, such as information products, IC modules, liquid crystal displays, precision electronic circuit boards, instrument electronics, audio-visual products, anti-riot devices in mines, auto parts, petrochemicals, laboratory anti-static devices and defense industries, etc. The product cannot meet the due quality and technical level and safety standards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0008] The product formula ratio is respectively:

[0009] Conductive carbon black 12%, specification: 33μm, and special activation treatment;

[0010] Polyolefin 70%, specification: Korea Samsung-FB400, melt index MI7.5-8.5;

[0011] Comprehensive additives 10%:

[0012] Among them, calcium stearate 1%, specification: reagent grade;

[0013] EVA-3 is 1%;

[0014] Ethylene bis stearamide EBS2%;

[0015] Polyethylene wax 5%, specification: high melting point;

[0016] Antioxidant 1%;

[0017] CaCO 3 8%, specifications: ultra-fine and treated with coupling agent activity.

[0018] The process flow is:

[0019] Batching, high-speed stirring, finishing, high-speed stirring, kneading, coarse material, kneading, granulation, screening, packaging.

[0020] After measuring, utilize its main performance index of the pellet produced by this patent as follows:

[0021] Tensile yield strength (Mpa) 22.4;

[0022] Bending strength (Mpa) 33.8;

[0023] Flexural modulus of elast...

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Abstract

Antistatic polyolefine grain consists of conducting carbon black 11-13 wt%, polyolefine 68-72 wt%, assistant 8-12 wt% and filler 4-10 wt%. It is prepared through the technological processes including high speed stirring of the mixture, finishing, restirring, mixing, pelletizing, sieving and packing. It has antistatic index as high as 10 to the third power-10 to the sixth power ohm. The process of the present invention is suitable for producing various antistatic product with homogeneous and stable antistatic effect.

Description

1. Technical field: [0001] The invention relates to a polyolefin antistatic granular material and a preparation method thereof, belonging to the technical process field of processing or batching of polymer substances. 2. Background technology: [0002] Ordinary polyolefin material is almost an insulator. Due to its extremely high resistivity, it is easy to cause static electricity and fail to conduct during use or processing. products, and even cause a fire. Therefore, it cannot be applied in industries such as electronic appliances, petrochemical industry, communications, national defense industry, laboratories, mines and so on. The current polyolefin materials on the market are antistatic substances added during the production process. Although the resistivity has been reduced, due to the limitation of the antistatic ability of the original product, it cannot meet the technical and safety needs of the above-mentioned fields at all. According to the information, the raw m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/04C08L23/00C09K3/16
Inventor 熊小勇
Owner SHANGHAI SANCHENG MACROMOLECULE MATERIAL TECH
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