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A kind of preparation method of carbon fiber surface deposition molybdate nanomaterial

A carbon fiber material, surface deposition technology, applied in nanotechnology, nanotechnology, nanotechnology and other directions for materials and surface science, can solve problems such as high cost and complex operation, achieve small investment, simple processing, mild reaction conditions Effect

Active Publication Date: 2018-08-03
SHANGHAI INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the above-mentioned deficiencies and provide a preparation method for depositing molybdate nanomaterials on the surface of carbon fibers, which solves the technical problems of high cost and complicated operation in the process of preparing carbon fiber surface deposits molybdate nanomaterials

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  • A kind of preparation method of carbon fiber surface deposition molybdate nanomaterial
  • A kind of preparation method of carbon fiber surface deposition molybdate nanomaterial
  • A kind of preparation method of carbon fiber surface deposition molybdate nanomaterial

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preparation example Construction

[0030] The present invention provides a preparation method for depositing molybdate nanomaterials on the surface of carbon fibers, comprising the following steps: 1) degreasing and surface cleaning treatment of carbon fibers: carbon fibers are first soaked in acetone for 1-3 hours, and cleaned with deionized water After cleaning, place it in a tube furnace with a nitrogen protection temperature of 350-450° C. for 15-60 minutes. 2) Anode treatment: polish the anode soluble metal sheet with sandpaper, then place it in acetone for degreasing treatment, then rinse it with deionized water, dry the metal sheet with nitrogen air flow, and use the carbon fiber material of the above step 1 with The self-made clip is attached to the surface of the metal sheet to make a simple anode, and the carbon fiber material is carbon felt or carbon cloth. 3) Carbon fiber surface electrodeposition: After the above treatment, in the attached Figure 1a Carry out electrolysis in the shown cationic mem...

Embodiment 1

[0036] 1) Use the carbon felt close to the iron sheet as a whole as the anode, use the inert electrode as the cathode, use 90ml of sodium molybdate aqueous solution containing depolarizer as the anolyte, use 90ml of dilute hydrochloric acid solution as the catholyte, and use the cationic membrane as the diaphragm In the double-chamber electrolytic cell, the temperature is controlled at 70-80°C, and the electrolysis is carried out by constant current electrolysis for 5 minutes; in the anolyte, the concentration of sodium molybdate is 0.1mol / L; the concentration of depolarizer is 0.01mol / L ; The depolarizer is sodium chloride; the cationic membrane is Nafion perfluorosulfonic acid 212 type cation exchange membrane; the concentration of acid solution is 0.1mol / L; the current of constant current electrolysis is 0.6A, and the current density is 0.086A / cm 2 ;

[0037] 2) After the electrolysis is completed, dry the obtained anode, remove the carbon felt, wash the obtained carbon fel...

Embodiment 2

[0039] 1) Use the carbon felt close to the iron sheet as a whole as the anode, use the inert electrode as the cathode, use 90ml of sodium molybdate aqueous solution containing depolarizer as the anolyte, use 90ml of dilute hydrochloric acid solution as the catholyte, and use the cationic membrane as the diaphragm In the double-chamber electrolyzer, the temperature is controlled at 60-70°C, and the electrolysis is carried out by constant current electrolysis for 5 minutes; in the anolyte, the concentration of sodium molybdate is 0.1mol / L; the concentration of depolarizer is 0.01mol / L ; The depolarizer is sodium chloride; the cationic membrane is Nafion perfluorosulfonic acid 212 type cation exchange membrane; the concentration of acid solution is 0.1mol / L; the current of constant current electrolysis is 0.3A, and the current density is 0.06A / cm 2 ;

[0040] 2) After the electrolysis is completed, dry the obtained anode, remove the carbon felt, wash the obtained carbon felt and ...

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Abstract

The invention relates to a method for preparing a nanometer material by depositing molybdate on the carbon fiber surface. The method includes the steps of soaking a carbon fiber material in acetone for 1-3 hours, washing the soaked carbon fiber material, roasting the washed carbon fiber material in a tube furnace under the protection of nitrogen and at 350-450 DEG C for 15-60 minutes, conducting constant-current electrolysis or constant-voltage electrolysis in a bipolar electrolysis cell with a cation rnembrane as a diaphragm for 5-30 minutes at 90 DEG C by taking the carbon fiber material abutting against a soluble anode metal plate as anode integrally, an inert electrode as a cathode, a sodium molybdate water solution as anolyte and an acid solution, an alkaline solution or a saline solution as catholyte, taking the carbon fiber material down from the anode metal plate after electrolysis, washing with deionized water, drying, and roasting in the tube furnace under the protection of the nitrogen and at 350-450 DEG C for 1-4 hours so as to obtain the nanometer material formed by depositing the molybdate on the carbon fiber surface. The method is reasonable, simple in technology, low in cost and mild in condition.

Description

[technical field] [0001] The invention belongs to the technical field of carbon material surface deposition, in particular to a preparation method for depositing molybdate nanomaterials on the surface of carbon fibers. [Background technique] [0002] With the development of the military industry, carbon fiber and its composite materials have a series of excellent properties such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electrical conductivity, heat transfer and small thermal expansion coefficient. It is a high-tech product that is widely concerned by people. It can not only carry load as a structural material, but also play a role as a functional material. Therefore, it has developed very rapidly in recent years, and has been widely used in many fields such as energy, aviation, aerospace, automobiles, environmental engineering, chemicals, transportation, construction, electronic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D9/06C25D5/54B82Y30/00
CPCB82Y30/00C25D5/54C25D9/06
Inventor 张全生张道明张立恒任桢霍孟飞张笑宇姚明月魏江兰周敦凡
Owner SHANGHAI INST OF TECH