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Preparation method of copper/alumina composite fiber

A technology of alumina fiber and composite fiber, which is applied in fiber treatment, liquid chemical plating, metal material coating process, etc., can solve poor wettability, high manufacturing cost of composite material performance, and difficulty in substantially improving alumina fiber and matrix Wettability and other issues, to achieve the effect of low cost, improved wettability, and short cycle

Pending Publication Date: 2022-06-14
莫纶珠海新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, poor wettability between alumina fiber and matrix is ​​currently the bottleneck problem in the preparation of composite materials. At present, most scholars start with process equipment to improve process parameters and matrix elements for wettability problems.
However, it is difficult to substantially improve the wettability between the alumina fiber and the matrix by improving the process parameters, and improving the matrix elements is likely to cause changes in some properties of the composite material and high manufacturing costs

Method used

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  • Preparation method of copper/alumina composite fiber
  • Preparation method of copper/alumina composite fiber
  • Preparation method of copper/alumina composite fiber

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preparation example Construction

[0041] Thus, in order to improve the infiltration of fibers and metal matrix, the present application provides a copper / alumina composite fiber preparation method, comprising the following steps:

[0042] S1. Fiber pretreatment: the target alumina fiber is heated and placed in a solvent to immerse in the solvent and soaked in pretreatment to obtain pretreated fiber;

[0043] S2. Roughing: The pretreated fibers are immersed in the coarsening liquid and coarsened to obtain the roughed fibers;

[0044] S3. Sensitization: The roughed fibers are immersed in immersion and soaked in tin metal salt solution for sensitization treatment to obtain sensitized fibers;

[0045] S4. Activation: Activation is carried out by using activation solution immersion soaking sensitized fibers to obtain activated fibers;

[0046]S5. Fiber copper plating: The activated fibers are put into the plating solution for copper plating to obtain copper / alumina composite fibers.

[0047] Using the preparation met...

Embodiment 1

[0072] Preparation method of copper / alumina composite fiber, comprising the following steps:

[0073] S1. Fiber pretreatment: take a number of alumina fibers with a length of 10cm, incubate and soak in anhydrous alcohol at 400 °C for 30 min in the muffle furnace, and perform ultrasonic shock at 40 °C for 10 min to obtain pretreated fibers;

[0074] S2. Coarsening: The pretreated fibers are immersed in 68% wt concentrated nitric acid, and the pretreated fibers are immersed in soaking and pretreated fibers for 10min at 50 °C; then the fibers are removed and rinsed with deionized water to deionized water pH=7±0.1 to obtain the roughed fibers;

[0075] S3. Sensitization: The roughing fibers are immersed in 5g / L stannous chloride solution for 5min, and the deionized water is fully rinsed to obtain the sensitized fibers;

[0076] S4. Activation: The sensitized fibers are immersed in 2g / L silver nitrate solution for 5 min to obtain activated fibers;

[0077] S5. Fiber copper plating:

[...

Embodiment 2

[0085] Preparation method of copper / alumina composite fiber, comprising the following steps:

[0086] S1. Fiber pretreatment: take a number of alumina fibers with a length of 5cm, incubate and soak in anhydrous alcohol after insulation at 450 °C for 50 min in the muffle furnace, and perform ultrasonic shock at 45 °C for 15 min to obtain pretreated fibers;

[0087] S2. Coarsening: The pretreated fibers are immersed in 68% wt concentrated nitric acid, and the pretreated fibers are immersed in soaking and pretreated fibers for 10min at 50 °C; then the fibers are removed and rinsed with deionized water to deionized water pH=7±0.1 to obtain the roughed fibers;

[0088] S3. Sensitization: The roughed fibers are immersed in 8g / L stannous chloride solution for 5 min, and the deionized water is fully rinsed to obtain the sensitized fibers;

[0089] S4. Activation: The sensitized fibers are immersed in 5g / L silver nitrate solution for 5 min to obtain activated fibers;

[0090] S5. Fiber cop...

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Abstract

The invention discloses a preparation method of a copper / alumina composite fiber, which comprises the following steps: S1, fiber pretreatment: heating a target alumina fiber, and soaking in a solvent for pretreatment to obtain a pretreated fiber; s2, coarsening: the pretreated fibers are immersed in a coarsening solution for coarsening treatment, and coarsened fibers are obtained; s3, sensitization: the coarsened fibers are immersed in a tin metal salt solution for sensitization treatment, and sensitized fibers are obtained; s4, activating: immersing the soaked sensitized fibers in an activating solution for activating treatment to obtain activated fibers; and S5, fiber copper plating: putting the activated fiber into a plating solution for copper plating treatment to obtain the copper / aluminum oxide composite fiber. By adopting the preparation method of the copper / aluminum oxide composite fiber, a metal copper layer can be plated on the surface of the aluminum oxide fiber. The technological process is simple and convenient, the period is short, the cost is low, and the good industrial and large-scale preparation capacity is achieved.

Description

Technical field [0001] The present invention relates to a special fiber preparation related technical field, specifically a copper / alumina composite fiber preparation method. Background [0002] Alumina fiber is a high-strength high-modulus high-temperature resistant new fiber material, because of its high temperature resistance, high tensile strength and excellent performance has been applied in aerospace and other important fields, while alumina fiber due to the relatively low price, has been valued by global R & D personnel. [0003] Alumina fiber reinforced metal matrix composite materials because of their excellent properties have been widely cited in electronic packaging, oil production machinery, ship transportation and other fields, has been the attention of people from all over the world, countries have also carried out research and development, the current alumina fiber reinforced metal matrix composite process is more mature countries are the United States and Japan,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/40C23C18/18D06M11/83
CPCC23C18/405C23C18/1893D06M11/83
Inventor 马小民张健吴新猛张春苏
Owner 莫纶珠海新材料科技有限公司