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Preparation method of carbon fiber-loaded mesoporous titania

A technology of mesoporous titanium dioxide and titanium dioxide, which is applied in the fields of carbon fiber, fiber treatment, textiles and papermaking, etc., can solve problems such as the influence of titanium dioxide microstructure, morphology and crystal form, small specific surface area, and performance impact of composite materials, etc. Achieve the effect of improving load strength, large specific surface area and controllable structure

Active Publication Date: 2014-04-02
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods improve the wettability and compatibility between the carbon fiber and the matrix in the preparation of composite materials by preparing a titanium dioxide coating on the surface of the carbon fiber. However, the titanium dioxide loaded on the surface of the carbon fiber by these methods is a nano-particle without microstructure and has a small specific surface area. , and did not pay attention to the microstructure, morphology and crystal form of titanium dioxide, which have an important impact on the performance of composite materials

Method used

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  • Preparation method of carbon fiber-loaded mesoporous titania
  • Preparation method of carbon fiber-loaded mesoporous titania
  • Preparation method of carbon fiber-loaded mesoporous titania

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Make solution A with 3.4g tetrabutyl titanate, 0.58g P123 and 5ml absolute ethanol, then make solution B with 2.5ml absolute ethanol, 0.045ml deionized water and 0.098g concentrated hydrochloric acid. Solution B was slowly added to solution A, and continued to stir for 1 hour to obtain a light yellow transparent sol; the activated carbon fiber was immersed in the sol, and after standing for 0.5 hour, it was pulled, and the carbon fiber was taken out and placed in the air to slowly gel; then the loaded The carbon fiber with gel was dried in an oven, treated at 50°C for 24 hours, and then continued at 120°C for 6 hours; the dried sample was placed in a tube furnace and heat-treated at 350°C for 5 hours to obtain a surface Carbon fibers loaded with mesoporous titania.

Embodiment 2

[0024] Make solution A with 3.4g tetrabutyl titanate, 1.16g P123 and 8ml absolute ethanol, then make solution B with 4ml absolute ethanol, 0.09ml deionized water and 0.5g concentrated hydrochloric acid. The solution was slowly added to solution A, and continued to stir for 1.5 hours to obtain a light yellow transparent sol; the activated carbon fiber was immersed in the sol, and after standing for 1 hour, it was pulled, and the carbon fiber was taken out and placed in the air to slowly gel; then the loaded The gelled carbon fibers were dried in an oven, treated at 70°C for 20 hours, and then continued at 120°C for 12 hours; the dried samples were placed in a tube furnace and heat-treated at 400°C for 3 hours to obtain the surface-loaded medium. Porous titanium dioxide carbon fiber.

Embodiment 3

[0026] Make solution A with 3.4g tetrabutyl titanate, 2.32g P123 and 16ml absolute ethanol, then make solution B with 8ml absolute ethanol, 1.8ml deionized water and 0.98g concentrated hydrochloric acid. The solution was slowly added to liquid A, and continued to stir for 3.5 hours to obtain a light yellow transparent sol; the activated carbon fibers were immersed in the sol, stood for 1.5 hours and then pulled, and the carbon fibers were taken out and placed in the air to slowly gel; then the loaded The carbon fiber with gel is dried in an oven, treated at 100°C for 6h, and then continued at 120°C for 24h; the dried sample is placed in a tube furnace and heat-treated at 500°C for 2h to obtain the surface load. Carbon fibers of mesoporous titania.

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Abstract

The invention discloses a preparation method of carbon fiber-loaded mesoporous titania, and belongs to a carbon fiber surface modification technology. An activated carbon fiber is adopted as a load body, and the mesoporous titania is loaded on the surface of the carbon fiber by sol-gel reaction by virtue of a guiding role of a template. The method has the advantages that titania-modified carbon fiber which has a mesoporous structure, is controllable in load capacity, and uniform in distribution, and has a phase in an anatase structure can be prepared, and high specific surface area of the mesoporous material is beneficial to improvement of interface bonding between a carbon fiber reinforcement and a base material. Thus, the mechanical property of the carbon fiber composite material is improved further. Meanwhile, the preparation method has important significance in expansion of application of the carbon fiber in the structure-energy storage integrated multifunctional composite material. The preparation method can be applied to the technical fields such as an advanced composite material, energy storage, absorption and the like.

Description

technical field [0001] The invention belongs to a carbon fiber surface treatment, in particular to a preparation method of carbon fiber loaded mesoporous titanium dioxide, which belongs to the carbon fiber surface modification technology. Background technique [0002] Carbon fiber has a series of excellent properties such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, electrical conductivity, heat transfer and small thermal expansion coefficient, and is widely used in carbon fiber reinforced resin-based composite materials. However, due to the smooth surface of carbon fiber, high inertia, low surface energy, lack of chemically active functional groups, poor surface activity, poor interfacial bonding force when composited with the matrix, and many interfacial defects, it greatly limits the high strength of carbon fiber. High specific modulus and other advantages to play. Therefore, surface modification...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M101/40
Inventor 李素敏蒲青青赵玉涛张钊王玉李杰
Owner JIANGSU UNIV
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