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Fe-P/polymer composite fiber and preparation method thereof

A composite fiber and polymer technology, applied in the direction of fiber treatment, superimposed layer plating, coating, etc., can solve the problems of size limitation, achieve the effects of reducing weight, improving catalytic efficiency, and enhancing microwave absorption performance

Inactive Publication Date: 2019-01-04
罗奕兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The idea of ​​the liquid phase method is to melt the master alloy uniformly first, and then adopt the method of purification and rapid cooling to rapidly cool the alloy liquid in a short period of time. The main advantages of this type of method are that the preparation is simple and the cycle is short. The size is largely limited by the ability of the alloy to form amorphous

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: Forming process of Fe-P alloy / polymer composite fiber

[0029] (1) Surface treatment of fibers: using φ0.01 mm polypropylene fiber, chemical degreasing and degreasing with sodium hydroxide solution;

[0030] (2) The proportion of the roughened aqueous solution is 80g / L chromic anhydride, 300ml / L sulfuric acid, the roughening treatment temperature is 60°C, and the roughening treatment time is 20 minutes;

[0031] (3) For fiber sensitization, the composition of the sensitization solution is 8g / L tin chloride, 40ml / L hydrochloric acid, and the sensitization treatment time is 3min;

[0032] (4) Silver nitrate and ammonia solution are used to activate the fiber surface, and the activated fiber is reduced by formaldehyde solution;

[0033] (5) Electroless plating of treated fibers, the solution composition is: nickel chloride 0.45mol / L, tartaric acid 0.3mol / L, hypophosphorous acid 0.2mol / L, the pH value of the titration solution is 4, and the electroless plat...

Embodiment 2

[0037] Embodiment 2: Forming process of Fe-P amorphous alloy / polymer composite fiber

[0038] (1) Surface treatment of fibers: using φ0.02 mm nylon fibers, chemical degreasing and degreasing with sodium hydroxide solution;

[0039] (2) The proportion of the roughened aqueous solution is 65g / L chromic anhydride and 250ml / L sulfuric acid, the roughening treatment temperature is 60°C, and the roughening treatment time is 30 minutes;

[0040] (3) For fiber sensitization, the composition of the sensitization solution is tin chloride 6.5g / L, hydrochloric acid 30ml / L, and the sensitization treatment time is 2min;

[0041] (4) Silver nitrate and ammonia solution are used to activate the fiber surface, and the activated fiber is reduced by formaldehyde solution;

[0042] (5) Electroless plating of treated fibers, the solution composition is: nickel sulfate 0.4mol / L, tartaric acid 0.35 mol / L, sodium hypophosphite 0.3mol / L, the pH value of the titration solution is 5, and the electro...

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Abstract

Provided is Fe-P polymer composite fiber. According to the fiber, the length is continuous, the cross section can be round or special-shaped or in other shapes; the cross-sectional area of the composite fiber is not more than 4mm<2>; the coating layer of the composite fiber is Fe-P amorphous alloy or alloy, and the specific composition is 80-95% of Fe and 5-20% of P, and the thickness of the coating layer is not more than 0.5 mm; the core wires of the composite fiber are polymer. The production process of the composite fiber includes the steps of: (1) degreasing the polymer fiber with alkalinesolution; (2) coarsening the fiber surface with chromic anhydride and sulfuric acid solution; (3) sensitizing the fiber with acidic tin salt solution; (4) activating the fiber surface with silver nitrate and aqueous ammonia solution; (5) electroless-plating the fiber with Ni-P; (6) electro brush-plating the fiber with Fe-P alloy.

Description

technical field [0001] The invention relates to the production field of metal composite fibers, in particular to an Fe-P / polymer composite fiber and a preparation method. Background technique [0002] The functions of soft magnetic materials are mainly magnetic conduction, conversion and transmission of electromagnetic energy. At present, the application of soft magnetic materials can be roughly divided into four categories: alloy thin strips or sheets; amorphous alloy thin strips; body. Amorphous alloys based on transition metals (iron, cobalt, nickel) have excellent soft magnetic properties, high saturation magnetic induction and low AC loss, and can be widely used in high and low frequency transformers (partially replacing silicon steel sheets and permalloys), Magnetic sensors, recording heads, magnetic shielding materials, etc. With the rapid development of electronic engineering technology, the research and development of advanced soft magnetic materials has graduall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M11/69D06M11/48D06M11/55D06M11/20D06M11/11C23C18/24C23C18/28C23C18/30C23C18/36C23C28/02C25D3/56D06M101/20D06M101/34
CPCD06M11/83C23C18/24C23C18/285C23C18/30C23C18/36C23C28/021C25D3/562D06M11/11D06M11/20D06M11/48D06M11/55D06M11/69D06M2101/20D06M2101/34
Inventor 罗奕兵
Owner 罗奕兵
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