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Elastomer-based antistatic master batch and preparation method thereof

An antistatic masterbatch and antistatic agent technology, applied in the field of antistatic masterbatch and its preparation, can solve the problems of affecting antistatic effect, entanglement and agglomeration of molecular chains, inability to distribute evenly, etc. Agglomeration, avoiding the effect of solvent recovery

Active Publication Date: 2021-07-30
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most organic antistatic agents themselves have a lubricating effect, and when directly added to polymer materials for processing, it will cause the screw to slip
If there is static electricity locally during processing, it will cause the antistatic agent to be adsorbed and cause uneven distribution
Especially for polymer antistatic agents, due to their large molecular weight and long lipophilic chains, the molecular chains will be entangled and agglomerated, and they cannot be evenly distributed in the material, which will affect the antistatic effect.

Method used

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  • Elastomer-based antistatic master batch and preparation method thereof
  • Elastomer-based antistatic master batch and preparation method thereof
  • Elastomer-based antistatic master batch and preparation method thereof

Examples

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preparation example Construction

[0059] The preparation method of the above-mentioned high molecular weight hydrophilic zwitterionic antistatic agent comprises the following steps:

[0060] Add dimethylaminoethyl methacrylate and bromoalkyl acid into a three-necked flask, use absolute ethanol as a solvent, and potassium iodide as a catalyst. Nitrogen is fed into the three-necked flask to remove oxygen, and the time for feeding nitrogen can be adjusted as required, and the present invention selects 30 min. Under nitrogen protection, the reaction was carried out in a constant temperature water bath at 50°C to 70°C and magnetically stirred for 24h to 72h. The product solution was filtered and the crude product was dried. The dried crude product was dissolved in water, extracted with ether, and the obtained aqueous phase was freeze-dried to obtain a white powder of amphoteric monomer, (2-methacryloyloxy)ethyldimethylalkyl with the following structure Acid ammonium bromide:

[0061]

[0062] where z≧10;

[...

Embodiment 1

[0076] A high molecular weight hydrophilic zwitterionic antistatic agent, comprising the following raw materials in parts by weight:

[0077]

[0078] The synthesis temperature of the amphoteric monomer is 50°C, and the reaction time is 48h; the synthesis temperature of the antistatic agent is 50°C, and the reaction time is 72h.

[0079] The molecular weight of the prepared antistatic agent measured by GPC is 7×10 4 .

Embodiment 2

[0081] A high molecular weight hydrophilic zwitterionic antistatic agent, comprising the following raw materials in parts by weight:

[0082]

[0083] The synthesis temperature of the amphoteric monomer is 60°C, and the reaction time is 48h; the synthesis temperature of the antistatic agent is 70°C, and the reaction time is 24h.

[0084] The molecular weight of the prepared antistatic agent measured by GPC is 4×10 4 .

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Abstract

The invention discloses an elastomer-based antistatic master batch and a preparation method thereof. According to the invention, a high molecular weight hydrophilic zwitterionic antistatic agent is taken as a raw material to be compounded with other antistatic agents, synthetic rubber is taken as a matrix, and the elastomer-based antistatic master batch is prepared through an internal mixer. The antistatic master batch prepared by the invention has excellent antistatic performance and dispersing performance, the surface resistance of a high polymer material can reach 107, the antistatic master batch is convenient for extrusion processing of the high polymer material, the process is simple, and the processing is convenient.

Description

technical field [0001] The invention belongs to the field of antistatic materials, and in particular relates to an antistatic masterbatch with an elastomer as a matrix and a preparation method thereof. Background technique [0002] The molecules of polymer materials are generally bound by stable covalent bonds and cannot be ionized by themselves. Therefore, there is a large forbidden band energy level between the molecular chains, which prevents the carriers from moving, resulting in high surface resistivity. As a non-insulating material When it is used, its surface friction is easy to generate static electricity, which is difficult to eliminate, and it is easy to cause dust collection, breakdown of electronic devices, discharge and combustion, and there are serious safety hazards. The method of adding antistatic agent to the material is widely used because it is relatively simple and effective. [0003] However, most organic antistatic agents have a lubricating effect, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L53/02C08L33/26C08L91/06C08F220/56C08F220/36C08J3/22
CPCC08J3/226C08F220/56C08J2423/16C08J2353/02C08J2491/06C08J2433/26C08F220/365
Inventor 韩宇豪刘曙阳陆体超周小梅姚伟
Owner NANJING JULONG SCI&TECH CO LTD