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Water-based carbon nanotube dye, composition thereof and method for preparing conductive fiber

A water-based carbon nanotube and dye composition technology, which is applied in dyeing, organic dyes, textiles and papermaking, etc., can solve the problems of poor uniformity of carbon black particles, complicated operation, unstable medium and high resistance, etc., and achieve fiber voids Small size, wide applicability, good adhesion effect

Active Publication Date: 2017-06-13
MATERIAL & IND TECH RES INST BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the late 1960s, Japan’s Teijin Corporation and Germany’s BASF Corporation took the lead in developing organic conductive fibers coated with carbon black, but the carbon black particles had problems such as poor particle size uniformity and unstable medium and high resistance.
[0006] However, the operation of the above-mentioned method is relatively complicated, and the obtained conductive composite fiber needs to be further improved in terms of conductivity and resistance stability and color fastness.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0038] The invention also provides a preparation method of the conductive fiber, which comprises contact dyeing the fiber with the water-based carbon nanotube dye of the invention and then drying.

[0039]There is no particular limitation on the method of contacting the fiber with the water-based carbon nanotube dye of the present invention, and the present invention preferably utilizes a monofilament sizing machine to prepare the carbon nanotube dyed conductive fiber. Specifically, the fiber precursors are prepared, and the water-based carbon nanotube dye is poured into the size tank for standby; the single fiber is drawn into the size tank for multi-stage rolling and dyeing, and the excess dye is squeezed out by using roller mechanical extrusion and ultrasonic vibration. Then enter the oven to dry. The preferred process parameters are a yarn speed of 80-120m / min, and a preferred baking temperature of 60-85°C.

[0040] The carbon nanotube dyed conductive fiber is prepared by...

Embodiment 1

[0045] With 76 parts by weight of multi-walled carbon nanotubes (purchased from Nanocyl Company, ID is 10-15nm, OD≤30nm, length of carbon nanotubes is 10-30 μm), 18 parts by weight of anionic dispersant (the name is dodecane Sodium phenylsulfonate, purchased from Sinopharm Group Chemical Reagent Co., Ltd.) and 1611 parts by weight of water mixed with a sand mill for 1 hour to obtain a carbon nanotube dispersion (grinding speed is 2000RPM, carbon nanotube glue in the dispersion obtained The average particle size of the beam is 0.6 μm). Using IKA Eurostar 4cm four-leaf stirring rod, stir at 200RPM for 10min. After stirring evenly, slowly add 28 parts by weight of polyethylene glycol 400 (purchased from Sinopharm Chemical Reagent Co., Ltd.), 100 parts by weight of polyurethane resin (purchased from Guoshibang Chemical Co., Ltd.), 13 parts by weight of defoamer (The model is: Foamaster 111, purchased from Haichuan Chemical Co., Ltd.), 57 parts by weight of ethylene glycol butyl e...

Embodiment 2

[0048] With 143 parts by weight of multi-walled carbon nanotubes (purchased from Nanocyl Company, ID is 10-15nm, OD≤30nm, carbon nanotube length is 10-30 μm), 30 parts by weight of anionic dispersant (named dodecane Sodium sulfonate, purchased from Sinopharm Group Chemical Reagent Co., Ltd.) and 2391 parts by weight of water were mixed and fully ground for 1 hour with a sand mill to obtain a carbon nanotube dispersion (the grinding speed was 2000RPM, and the carbon nanotubes in the dispersion obtained were The average particle size of micelles is 0.5 μm). Using IKA Eurostar 4cm four-leaf stirring rod, stir at 200RPM for 10min. After stirring evenly, slowly add 57 parts by weight of polyvinyl alcohol (purchased from Sinopharm Chemical Reagent Co., Ltd.), 100 parts by weight of acrylic resin (purchased from Geely Chemical Co., Ltd.), 23 parts by weight of a defoamer (model is: Foamaster111, purchased from Haichuan Chemical Co., Ltd.), 114 parts by weight of propylene glycol met...

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Abstract

The invention relates to the field of functional conductive fibers, and discloses a water-based carbon nanotube dye, a composition thereof and a method for preparing a conductive fiber. The water-based carbon nanotube dye composition is characterized by containing waterborne resin, a carbon nanotube, an anionic dispersant and a nonionic wetting dispersant. The water-based carbon nanotube dye is prepared from the composition. The conductive fiber is prepared from the water-based carbon nanotube dye. The conductive fiber obtained by the method is high in electrical conductivity, resistance stability and color fastness.

Description

technical field [0001] The invention relates to a water-based carbon nanotube dye, a composition thereof and a preparation method of a conductive fiber. Background technique [0002] Disperse dyes are a class of hydrophobic non-ionic dyes, usually with small molecular weight and simple structure, and can be in a uniformly dispersed state when interacting with dispersants in aqueous solution. Dye molecules can enter the interior of the fiber and dye through the interaction of hydrogen bonds, van der Waals forces and fibers. [0003] Carbon nanotubes are seamless nanotubes rolled from single-layer or multi-layer graphite sheets. Due to their unique structure and nano-effects, carbon nanotubes exhibit excellent mechanical properties and good thermal and electrical conductivity. [0004] Usually under standard conditions (20°C, 65%RH) resistivity is less than 10 7 Fibers of Ω·cm can become conductive fibers, which can be divided into metal-based, carbon-black-based, metal-comp...

Claims

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Application Information

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IPC IPC(8): C09B67/38C09B67/40D06P1/52D06P1/60D06P1/673D06P1/62D06P3/52
Inventor 程雪赵秀婷于卫昆
Owner MATERIAL & IND TECH RES INST BEIJING