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Preparation method for continuous fiber copper pipe

A fiber and copper tube technology, applied in the field of preparation of long fiber copper tubes, can solve the problems that it is difficult to evenly cover the fiber surface with metal and cannot prepare continuous metal fiber tubes, so as to enhance the attenuation effect and improve the reaction speed Effect

Inactive Publication Date: 2016-06-15
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

None of these methods can prepare continuous metal fiber tubes, and it is difficult to evenly coat the metal on the fiber surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: φ0.0 Forming Technology of 1mm Fiber Copper Tube

[0017] (1) The diameter of polypropylene continuous fiber is φ 0.006mm, first use 10%wt sodium hydroxide solution for chemical degreasing for 5 minutes; 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; The composition of the sensitization solution is tin chloride 8g / L, hydrochloric acid 40ml / L, and the sensitization treatment time is 3 minutes; silver nitrate and ammonia solution are used to activate the fiber surface, and the activated fiber is reduced by formaldehyde solution;

[0018] (2) Electroless copper plating of fibers, the solution composition is: sodium potassium tartrate 10g / L, sodium hydroxide 2.5g / L, copper sulfate 2g / L, nickel chloride 0.2g / L, formaldehyde 1.2g / L, chemical Plating time is 3min;

[0019] (3) For fiber copper plating, the electropl...

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Abstract

The invention discloses a preparation method for preparing a continuous fiber copper pipe. According to the specific technical scheme, the preparation method comprises the steps that surface treatment of polypropylene continuous fibers is carried out; a sodium hydroxide solution is adopted for chemical oil removal, a chromic anhydride and sulfuric acid solution is used for surface roughening treatment, an acidic tin saline solution is used for fiber sensitization, a silver nitrate and ammonia water solution is used for fiber surface activation, and a formaldehyde solution is used for fiber reduction; then fiber chemical copper plating and fiber copper plating are carried out, and bivalent copper salt is adopted as main electroplating salt; the polypropylene fibers are removed under the oxidizing atmosphere; and the fiber copper pipe is obtained through reduction.

Description

technical field [0001] The invention relates to the technical field of preparing functionalized metal fiber tubes, in particular to a method for preparing long-fiber copper tubes. Background technique [0002] Compared with organic and inorganic fibers, metal fibers have high elasticity, high wear resistance, good air permeability, electrical conductivity, magnetic conductivity, thermal conductivity, self-lubrication and sintering properties, and have a wide range of applications and attractive prospects. . At present, it is mainly used in: friction materials for clutches and brake pads, conductive plastics, microwave protective clothing, high-voltage live work clothing, automobile mufflers, heat exchangers, etc. However, when the metal fiber tube with a hollow structure is used as an electromagnetic wave absorber, it can exhibit better electromagnetic wave attenuation effect and lower density. At present, the production methods of metal fiber tubes mainly include electros...

Claims

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Application Information

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IPC IPC(8): C23C18/40C23C18/24C23C18/28C23C18/30C23C28/02C25D3/38B22F1/00B22F9/24
CPCC23C18/24C23C18/285C23C18/30C23C18/405C23C28/023C25D3/38B22F9/24B22F1/062
Inventor 苑晨州罗奕兵谢炜余小峰吴明哲
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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