Preparation method of fibroin/graphene conductive fiber

A conductive fiber and graphene technology, applied in the manufacture of conductive/antistatic filaments, fiber chemical characteristics, single-component protein rayon, etc., can solve the problem of easy aggregation of conductive particles, affecting the effect of fiber wires, washing resistance and durability Poor and other problems, to achieve uniform conductivity, with good conductivity and antibacterial performance, water resistance and durability

Active Publication Date: 2015-06-03
苏州欧尔迪威地暖科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductive fiber prepared by the coating method has outstanding electrical conductivity, but its washing resistance and durability are not good. The conductive particles in the conductive fiber prepared by the co-spinning method are easy to agglomerate, which affects the conductive effect of the fiber.

Method used

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  • Preparation method of fibroin/graphene conductive fiber
  • Preparation method of fibroin/graphene conductive fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Graphene oxide with a reduction degree of 99% is made into a graphene solution with a concentration of 30mg / ml, mixed with a silk fibroin solution with a mass fraction of 45% in a weight ratio of 1:50, and poured into a polytetrafluoroethylene mold , drying to obtain graphene oxide and silk fibroin composite film.

[0026] Put the graphene oxide and silk fibroin composite film in the NMMO solution, stir until completely dissolved, and sonicate for 45 minutes to obtain a spinning solution with a viscosity of 5 Pa*s. The spinning solution was placed in the container of the electrospinning equipment, and the composite fiber was obtained by electrospinning at a high pressure of 15kv / cm, and the silk fibroin / graphene conductive fiber was obtained after being treated with the mixed steam of ethanol and water for 10 minutes.

Embodiment 2

[0028] Graphene oxide with a reduction degree of 99% is made into a graphene solution with a concentration of 15 mg / ml, mixed evenly with a silk fibroin solution with a mass fraction of 30% at a weight ratio of 1:50, and poured into a polytetrafluoroethylene mold , drying to obtain graphene oxide and silk fibroin composite film.

[0029] Put the graphene oxide and silk fibroin composite film in the NMMO solution, stir until completely dissolved, and sonicate for 30 minutes to obtain a spinning solution with a viscosity of 2 Pa*s. The spinning liquid is placed in the container of the electrospinning equipment, and the composite fiber is obtained by electrospinning at a high pressure of 10kv / cm, and the silk fibroin / graphene conductive fiber is obtained after being treated with the mixed steam of ethanol and water for 5 minutes.

Embodiment 3

[0031] Graphene oxide with a reduction degree of 99% is made into a graphene solution with a concentration of 30mg / ml, mixed with a silk fibroin solution with a mass fraction of 30% in a weight ratio of 1:50, and poured into a polytetrafluoroethylene mold , drying to obtain graphene oxide and silk fibroin composite film.

[0032] Put the graphene oxide and silk fibroin composite film in the NMMO solution, stir until completely dissolved, and sonicate for 35 minutes to obtain a spinning solution with a viscosity of 4Pa*s. The spinning liquid was placed in the container of the electrospinning equipment, and the composite fiber was obtained by electrospinning at a high pressure of 12kv / cm, and the silk fibroin / graphene conductive fiber was obtained after being treated with the mixed steam of ethanol and water for 8 minutes.

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Abstract

The invention discloses a preparation method of fibroin / graphene conductive fiber. The preparation method comprises the following steps: mixing a graphene oxide solution and a fibroin solution, pouring a mixture into a polytetrafluoroethylene mould, drying to obtain a graphene oxide / fibroin compound membrane, putting the graphene oxide / fibroin compound membrane into a solvent, stirring till the graphene oxide / fibroin compound membrane is completely dissolved, performing ultrasonic treatment to obtain a spinning solution, putting the spinning solution into a container of electrostatic spinning equipment, performing high-voltage electric spinning to obtain composite fiber, and performing steam treatment to obtain the fibroin / graphene conductive fiber. The concentrations of fibroin and graphene in the fibroin / graphene conductive fiber prepared by the preparation method are high, so that the fibroin / graphene conductive fiber has good conductivity besides excellent wearability.

Description

Technical field: [0001] The invention belongs to the technical field of silk composite fibers, and in particular relates to a preparation method of silk fibroin / graphene conductive fibers. Background technique: [0002] Graphene is the thinnest two-dimensional material known so far, and because electrons can move freely in the graphene crystal much faster than ordinary conductors, it has excellent electrical conductivity. Silk has been widely used in various fields due to its many excellent properties. At present, artificial animal fibers are generally bionic-spun using silk fibroin with abundant sources and low cost to prepare regenerated silk fibroin fibers with excellent mechanical properties. [0003] There are two ways to prepare conductive fibers, one is to coat conductive components on the surface of conventional fibers, and the other is to mix and spin conductive materials and fiber raw materials. The conductive fiber prepared by the coating method has outstanding c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F4/00D01F1/09
Inventor 董荣琴
Owner 苏州欧尔迪威地暖科技有限公司
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