Preparation method of anti-static polyester material based on carbon nanotube

A technology of carbon nanotubes and polyester materials is applied in the field of preparation of antistatic polyester materials, which can solve the problems of high preparation cost of antistatic polyester materials, difficulty in expanding application fields, and difficulty in industrial production, and achieves easy industrial production. , The effect of improving surface properties and saving production costs

Active Publication Date: 2013-04-03
CHANGZHOU INST OF CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention patents 200680001853 and 200610023797 respectively disclose a series of thermoplastic polymers (such as acrylonitrile-butadiene-styrene, polymethyl methacrylate, poly Amide, polyethylene, etc.), due to the introduction of graphite and carbon black, the color of the material is single, it is difficult to expand its application field
[0006] The above-mentioned method for surface modification of carbon nanotubes is applied to antistatic polyester materials with high preparation costs, and still has the disadvantage of poor dispersion, so it is difficult to apply to industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 5g of carbon nanotubes with a length of 10μm and a diameter of 50nm and 0.5g of zinc oxide into 250g of an aqueous solution of sodium dodecylsulfonate containing 2% by weight, disperse in a dispersing mixer for 5min, dry and grind to obtain a modified of carbon nanotubes. Add 1 part of modified carbon nanotubes, 0.5 parts of antioxidant 1010 and 100 parts of polyethylene terephthalate into a high-speed mixer and disperse evenly, then add them to a twin-screw extruder for melting and compounding, and the melt temperature of the extruder Control it at about 265°C, set the screw speed at 50 rpm, and the extruded product is water-cooled, air-dried, and then pelletized to obtain an antistatic polyester material with a volume resistivity of 6×10 6 Ω cm.

Embodiment 2

[0025] Put 15g of carbon nanotubes with a length of 10 μm and a diameter of 50nm and 0.5g of titanium dioxide into 750g of an aqueous solution of sodium dodecylsulfonate containing 1% by weight, disperse in a dispersing mixer for 10min, dry and grind to obtain a modified carbon nanotubes. Add 5 parts of modified carbon nanotubes, 0.1 part of triphenyl phosphate and 100 parts of polyethylene terephthalate to a high-speed mixer and disperse evenly, then add them to a twin-screw extruder for melting and compounding, and the melt temperature of the extruder Control it at about 265°C, set the screw speed at 250 rpm, and the extruded product is water-cooled, air-dried, and then pelletized to obtain an antistatic polyester material with a volume resistivity of 4×10 5 Ω cm.

Embodiment 3

[0027] Put 5g of carbon nanotubes with a length of 10 μm and a diameter of 50nm and 0.5g of tin dioxide into 25g of an aqueous solution of γ-aminopropyltriethoxysilane containing 50% by weight, disperse in a dispersing mixer for 1min, and dry. Modified carbon nanotubes are obtained after grinding. Add 5 parts of modified carbon nanotubes, 2 parts of zinc stearate and 100 parts of polytrimethylene terephthalate into a high-speed mixer to disperse evenly, then add them to a twin-screw extruder for melting and compounding, and the melt temperature of the extruder is controlled at At about 245°C, the screw speed is set at 80 r / min, the extruded product is water-cooled, air-dried, and then pelletized to obtain an antistatic polyester material with a volume resistivity of 3×10 6 Ω cm.

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PUM

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Abstract

The invention relates to a preparation method of an anti-static polyester material. The polyester material is improved by a modified carbon nanotube; and based on good electrical conductivity of a carbon nanotube, the carbon nanotube is modified with the method by adding a metal oxide and a dispersing agent to obtain a modified carbon nanotube with good dispersing effect, low cost and good electric conduction effect. In a melting compounding modification method, the thermal stability in the polyester material processing process is improved by adding a high molecular composite aid, and a polyester composite material with high performance and low volume resistance of less than 107(omega)cm is obtained. The method provided by the invention has simple technology and is easy to operate; the material performance is good, and the cost is relatively low; and the method has great application value and is suitable for industrial production.

Description

technical field [0001] The invention relates to an antistatic polyester material, in particular to a preparation method of an antistatic polyester material based on carbon nanotubes. Background technique [0002] Polymer materials such as plastics, rubber, and synthetic fibers all have superior electrical insulation properties. The fundamental reason is that the chemical bonds in such polymers are all covalent bonds, so they will not ionize, nor can they transmit electrons or ions. High surface resistance and volume resistance, when they rub against each other or contact and separate, high static electricity will be generated. The greater the resistance, the slower the electrostatic discharge, and thus the easier it is to generate electrostatic attraction or repulsion, electric shock or electric shock, and even discharge sparks to cause serious accidents. [0003] In the production and processing of synthetic fibers in the textile industry, and in the production, transporta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L67/02C08L67/04C08K13/06C08K9/02C08K9/04C08K9/06C08K7/00C08K3/04B29B9/06
Inventor 吴集钱贾树勇王红丹
Owner CHANGZHOU INST OF CHEM
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