Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Carbon fiber electrochemical processing method for surface growth carbon nanotube

A carbon nanotube, surface growth technology, applied in fiber treatment, carbon fiber, surface reaction electrolytic coating, etc., can solve the problems of easy agglomeration, great damage to fiber tensile strength, increase, etc., to achieve uniform loading, improve surface Roughness and functional group content, effect of increasing surface polarity

Active Publication Date: 2017-01-11
SHANDONG UNIV
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional surface modification technology etches the surface of carbon fiber more severely, and the tensile strength of the fiber is greatly damaged, which is not conducive to the improvement of the interfacial properties of carbon fiber composite materials.
Chinese patent document CN104179790A discloses a method for treating carbon fibers by electrochemical anodic oxidation, and uses ammonium bicarbonate as an electrolyte to perform electrochemical surface treatment on dry-sprayed wet-spun carbon fibers, but the tensile strength of the fibers is greatly damaged
Chinese patent document CN 102505449A discloses a method of grafting CNTs to the surface of carbon fibers by electrochemical treatment, which improves the surface properties of carbon fibers. The amount of grafting is difficult to control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbon fiber electrochemical processing method for surface growth carbon nanotube
  • Carbon fiber electrochemical processing method for surface growth carbon nanotube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: Add the carbon fiber from which the surface sizing agent has been removed into an electrolytic cell for electrolysis. The electrolytic cell contains 3% O 3 PNH 4 Organic electrolyte solution, electrolysis time 85s, electrolysis power 50C / g;

[0024] Step 2: Pass the carbon fiber obtained in step 1 through a water washing tank to remove the residual electrolyte on the surface, the washing time is 120s, and the washing temperature is 30°C;

[0025] Step 3: drying the carbon fiber obtained in step 2 through a drying oven, the drying temperature is 115°C, and the drying time is 130s;

[0026] Step 4: Pass the carbon fiber obtained in step 3 into an impregnation tank, which contains an alcohol solution of cobalt nitrate, and the impregnation time of the catalyst solution is 150s;

[0027] Step 5: Collect the carbon fibers obtained in Step 4 by using a wire collecting machine.

Embodiment 2

[0029] Step 1: Add the carbon fiber from which the surface sizing agent has been removed into an electrolytic cell for electrolysis. The electrolytic cell contains 3% O 3 P organic electrolyte solution, electrolysis time 85s, electrolysis power 50C / g;

[0030] Step 2: Pass the carbon fiber obtained in step 1 through a water washing tank to remove the residual electrolyte on the surface, the washing time is 120s, and the washing temperature is 30°C;

[0031] Step 3: drying the carbon fiber obtained in step 2 through a drying oven, the drying temperature is 115°C, and the drying time is 130s;

[0032] Step 4: Pass the carbon fiber obtained in step 3 into an impregnation tank, which contains an alcohol solution of cobalt nitrate, and the impregnation time of the catalyst solution is 150s;

[0033] Step 5: Collect the carbon fibers obtained in Step 4 by using a wire collecting machine.

Embodiment 3

[0035] Step 1: Add the carbon fiber from which the surface sizing agent has been removed to an electrolytic cell for electrolysis. The electrolytic cell contains a TEA organic electrolyte solution with a mass fraction of 3%, the electrolysis time is 85s, and the electrolysis power is 50C / g;

[0036] Step 2: Pass the carbon fiber obtained in step 1 through a water washing tank to remove the residual electrolyte on the surface, the washing time is 120s, and the washing temperature is 30°C;

[0037] Step 3: drying the carbon fiber obtained in step 2 through a drying oven, the drying temperature is 115°C, and the drying time is 130s;

[0038] Step 4: Pass the carbon fiber obtained in step 3 into an impregnation tank, which contains an alcohol solution of cobalt nitrate, and the impregnation time of the catalyst solution is 150s;

[0039] Step 5: Collect the carbon fibers obtained in Step 4 by using a wire collecting machine.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a carbon fiber electrochemical processing method for a surface growth carbon nanotube, and belongs to the field of carbon fiber surface processing. The method includes the following steps of firstly, adding carbon fibers without surface paste agent into an electrolytic bath to be electrolyzed; secondly, removing surface residual electrolyte of the carbon fibers obtained in the first step through a rinsing bath; thirdly, drying the carbon fibers obtained in the second step through a drying box; fourthly, introducing the carbon fibers obtained in the third step into a dipping tank, wherein a catalyst precursor solution is contained in the dipping tank; fifthly, collecting the carbon fibers obtained in the fourth step through a fiber collecting machine. The tensile strength of the carbon fibers is not damaged, the surface roughness and functional group content of the carbon fibers can be effectively improved, the surface polarity of the carbon fibers is improved, and the catalyst precursor solution is evenly loaded on the surfaces of the carbon fibers.

Description

technical field [0001] The invention relates to the field of carbon fiber surface treatment, in particular to a carbon fiber electrochemical treatment method for growing carbon nanotubes on the surface. Background technique [0002] The in-situ growth of carbon nanotubes (hereinafter referred to as CNTs) on the surface of carbon fibers is a new type of technology. The introduction of CNTs increases the contact area between resin and fiber, improves the wettability of fiber and resin, and provides a certain amount of mechanical meshing center. , which plays an important role in improving the interfacial strength of composite materials. [0003] E.T.ThStenson et al. (Carbon nanotube / carbon fiber hybrid multiscalecomposites[J].Journal of Applied physics, 2002,91(9):6034-6037) pre-deposited metal catalysts on the surface of carbon fibers, and then used chemical vapor deposition to Uniform carbon nanotubes are grown in situ on the surface of carbon fibers, so that mechanical int...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D06M11/74C25D11/00D06M101/40
CPCC25D11/00D06M11/74D06M2101/40
Inventor 王成国王延相陈纪强郑林宝王兴辉秦建杰
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com