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Preparation method of electronic cigarette oil guide rope enhanced by carbon nanotube interface

A technology of carbon nanotubes and interface enhancement, applied in the direction of conjugated artificial filaments, fiber chemical characteristics, conjugated synthetic polymer artificial filaments, etc., to enhance thermal conductivity, eliminate brittle electronic cigarette oil guide ropes, and easy to obtain raw materials Effect

Active Publication Date: 2018-03-20
CHINA TOBACCO GUANGXI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, this carbon nanotube-reinforced glass fiber / polymer composite can be spun to form fibers, which has not been reported in the field of electronic cigarettes so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Preparation of carbon nanotubes by wet spinning with 0.1% carbon nanotube interface enhanced wick for electronic cigarettes, thermal conductivity 0.32W / (m*k)

[0023] Disperse 500g of glass fiber ultrasonically in water, add 0.5g of acidified carbon nanotube material (50nm), stir at 80°C for 72 hours, so that the groups on the carbon nanotubes and the groups on the glass fiber fully react; After the reaction, the unreacted carbon nanotubes are washed three times with deionized water, and dried at 60° C. to obtain carbon nanotube-modified glass fibers. Disperse the obtained carbon tube-modified glass fiber in the 0.05M silane coupling agent solution, mix and modify for 8 hours; soak the obtained pre-treated glass fiber in polypropylene resin, and then solidify by wet spinning The fiber is obtained, and finally the fiber is wound into a wick, dried at 100°C to clean the solvent, and the wick for an electronic cigarette with enhanced carbon nanotube interface is ob...

Embodiment 2

[0024] Example 2: Preparation of carbon nanotubes by wet spinning with 0.5% carbon nanotube interface enhanced wick for electronic cigarettes, thermal conductivity of 1.38W / (m*k)

[0025] Disperse 1000g of glass fiber ultrasonically in ethanol, add 5g of acidified carbon nanotube material (10nm), stir at 20°C for 120 hours, so that the groups on the carbon nanotubes and the groups on the glass fibers fully react; After the reaction, the unreacted carbon nanotubes are washed three times with deionized water, and dried at 80°C to obtain carbon nanotube-modified glass fibers. Disperse the obtained carbon tube-modified glass fiber in the 0.5M silane coupling agent solution, mix and modify for 1 hour; soak the obtained pre-treated glass fiber in polypropylene resin, and then solidify by wet spinning The fiber is obtained, and finally the fiber is wound into an oil guiding rope, and after drying at 60° C. to clean the solvent, an electronic cigarette oil guiding rope with enhanced carb...

Embodiment 3

[0026] Example 3: Preparation of carbon nanotubes by wet spinning with 25% carbon nanotube interface enhanced wick for electronic cigarettes, thermal conductivity 3.42W / (m*k)

[0027] Disperse 10g of glass fiber ultrasonically in water, add 2.5g of acidified carbon nanotube material (10nm), and stir at 100°C for 12 hours, so that the groups on the carbon nanotubes and the groups on the glass fibers fully react; After the reaction, the unreacted carbon nanotubes were washed three times with deionized water, and dried at 100°C to obtain carbon nanotube-modified glass fibers. Disperse the obtained carbon tube-modified glass fiber in the 1M silane coupling agent solution, mix and modify for 4 hours; soak the obtained pre-treated glass fiber in polypropylene resin, and then solidify by wet spinning The fiber is obtained, and finally the fiber is wound into an oil guiding rope, and after drying at 100° C. to clean the solvent, an electronic cigarette oil guiding rope with enhanced carb...

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Abstract

The invention discloses an electronic cigarette oil-leading rope with carbon nanotube interface enhancement, and a preparation method and a product thereof. The preparation method comprises the following steps of adopting glass fiber as a raw material, and using a carbon nanotube modified by mixed acid to modify the glass fiber, so that the carbon nanotube is chemically grafted on the glass fiber; processing through a coupling agent, performing blend spinning with resin to obtain glass fiber / polymer composite fiber with carbon nanotube interface enhancement, and interwinding to form the electronic cigarette oil-leading rope. The glass fiber / polymer composite fiber with carbon nanotube interface enhancement has favorable toughness and heat-transmission capacity, and the preparation process is simple and convenient. The electronic cigarette oil-leading rope provided by the invention not only well solves the problems of poor elasticity, fragility and easiness in breaking of the traditional oil-leading rope, meanwhile, the heat transmission capacity is also enhanced, and the phenomenon that an electronic cigarette element is damaged due to dry ashing is avoided.

Description

Technical field [0001] The invention belongs to the technical field of composite materials, and particularly relates to a preparation method of an electronic cigarette wick with enhanced carbon nanotube interface. Background technique [0002] The oil guide rope in the electronic cigarette is the key part of the atomizer to produce smoke. It introduces the smoke oil into the heating part of the heating wire and atomizes to form smoke. However, the main component of the traditional oil guide rope for electronic cigarettes is a glass fiber / polymer composite material. Although it has good insulation and oil conductivity, it is brittle and has poor wear resistance, and has poor thermal conductivity, which is prone to dry burning. This phenomenon will affect the taste of e-cigarette smoke. [0003] Carbon nanotube is a kind of tubular carbon fiber with nanometer diameter. Due to the large amount of SP 2 Hybrid exists, S orbital components are more, and delocalized electrons are more ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/06D01F8/16D01F8/14D01F8/10D01F8/18C03C25/66
CPCC03C25/66D01F8/06D01F8/10D01F8/14D01F8/16D01F8/18
Inventor 李典田兆福陆漓梁俊黄忠辉
Owner CHINA TOBACCO GUANGXI IND
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