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Method for chemical crosslinked modified carbon nanotube fibers

A carbon nanotube fiber and chemical cross-linking technology, which is applied in the fields of fiber treatment, natural fiber, and fiber chemical characteristics, can solve the problems of poor comprehensive performance of carbon nanotube fibers, easy creep of carbon nanotube fibers, and poor dispersion of carbon nanotubes. Equal problem, to achieve the effect of reducing the generation of micro-nano cracks in carbon nanotube fibers, excellent mechanical stability, and improving Young's modulus

Inactive Publication Date: 2020-09-01
HARBIN ENG UNIV
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Problems solved by technology

[0005] The present invention solves the poor comprehensive performance of existing carbon nanotube fibers and the uneven dispersion of carbon nanotubes, defects in carbon nanotube fibers, easy creep and short service life when carbon nanotube fibers are affected by external forces. and the technical problems of low stability in use, and a method for chemically cross-linking modified carbon nanotube fibers is provided

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  • Method for chemical crosslinked modified carbon nanotube fibers
  • Method for chemical crosslinked modified carbon nanotube fibers
  • Method for chemical crosslinked modified carbon nanotube fibers

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specific Embodiment approach 1

[0045] Embodiment 1: A method of chemically cross-linking modified carbon nanotube fibers according to the present embodiment is carried out in the following steps:

[0046] 1. Preparation of spinning stock solution: dissolve hyaluronic acid in deionized water to obtain a hyaluronic acid solution with a concentration of 5 mg / mL, then add carbon nanotubes to the hyaluronic acid solution and perform ultrasonic dispersion treatment to obtain a spinning solution. Silk stock solution; the mass ratio of carbon nanotubes to hyaluronic acid is 8:5; the parameters of the ultrasonic dispersion treatment are: ultrasonic power is 180W, ultrasonic time is 20min;

[0047] 2. Preparation of hyaluronic acid / carbon nanotube fibers: use wet spinning technology to inject the spinning solution obtained in step 1 into the rotating coagulation solution at a speed of 50mL / h through the syringe needle, and the rotation speed is 20r / min , to obtain hyaluronic acid / carbon nanotube fibers; the diameter of...

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Abstract

The invention provides a method for chemical crosslinked modified carbon nanotube fibers, and belongs to the technical field of fiber preparation. The method for the chemical crosslinked modified carbon nanotube fibers is used for solving the problems that existing carbon nanotube fibers are poor in comprehensive performances and prone to unevenly dispersing in the process, have the defects and are prone to creeping when the carbon nanotube fibers are subjected to external force, short in service cycle and low in stability in use. The method for the chemical crosslinked modified carbon nanotube fibers comprises the following steps that 1, hyaluronic acid is dissolved in deionized water, then carbon nanotubes are added, and the mixture is ultrasonically dispersed to obtain spinning dope; 2,wet spinning technology is used for injecting the spinning dope into a solidification solution to obtain the hyaluronic acid / carbon nanotube fibers; 3, the hyaluronic acid / carbon nanotube fibers areplaced and soaked a mixed aqueous solution of 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide and a 1-hydroxybenzotriazole monohydrate, a hexamethylene diamine solution is added for cross-linking reaction, the mixture is washed and then dried at room temperature to obtain the chemical crosslinked modified carbon nanotube fibers.

Description

technical field [0001] The invention belongs to the technical field of fiber preparation; in particular, it relates to a method for chemically crosslinking and modifying carbon nanotube fibers. Background technique [0002] Multifunctional microfibers have been widely used in the fields of electronic textiles, flexible electronics, artificial muscles, implantable medical devices, and micro-actuators. In particular, the development of microfiber-based actuators is crucial for applications in the biomedical field, such as surgical robots and actuated catheters. It is required that the multifunctional microfibers used have good and stable mechanical properties, electrical properties and biological properties. compatibility. [0003] Due to the high specific surface area and excellent mechanical, electrical and optical properties of carbon nanotubes, they are widely used in the fields of electrochemical capacitors, wires, coatings, composite materials and mechatronics. It is w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F11/00D01D5/06D06M13/432D06M13/352D06M13/332D01F9/00D01F1/10D06M101/02
CPCD01F11/00D01D5/06D06M13/432D06M13/352D06M13/332D01F9/00D01F1/10D06M2101/02
Inventor 郑婷王晓东张晓红乔英杰王紫萱张东兴
Owner HARBIN ENG UNIV
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