A kind of ni-cu-la-b quaternary alloy plating solution and the method for glass fiber electroless plating

Abstract

The invention discloses a Ni-Cu-La-B quaternary alloy plating solution. The Ni-Cu-La-B quaternary alloy plating solution comprises the following components: 20-40g / L of nickel chloride, 10-20g / L of copper sulfate, 0.5-10 g / L of lanthanum sulfate, 0.5-3 g / L of sodium borohydride, 40-50g / L of potassium sodium tartrate, 15-30g / L of ethylenediamine and 35-60g / L of sodium hydroxide. A method for chemically plating the glass fibers by using the Ni-Cu-La-B quaternary alloy plating solution comprises the following steps: using sodium borohydride as a reducing agent, adding the water-soluble lanthanum sulfate, and chemically plating the glass fibers by using the Ni-Cu-La-B quaternary alloy plating solution under the conditions of strong base and low temperature; plating layers are Ni-Cu-La-B alloy plating layers, wherein the content of boron is low (only about 0.5-5wt%), the content of nickel in the plating layers is high; the plating layers have good bonding force, electrical conductivity and wear resistance. Through observation with microscopes, the plating layers of the Ni-Cu-La-B quaternary alloy plated glass fibers prepared by using the method are compact; testing with an X-ray energy dispersive spectrometer shows that the surface chemistry components of the Ni-Cu-La-B quaternary alloy plated glass fibers contain 15-50wt% of Ni, 2-15wt% of Cu, 0.5-5wt% of La and 0.5-5wt% of B. The electric conducting glass fibers can be applied to the special fields of electromagnetic wave shielding, microwave absorption, invisibility, anti-static electricity and the like.

Description

technical field [0001] The invention relates to the technical field of chemical plating, in particular to a Ni-Cu-La-B quaternary alloy plating solution and a method for chemical plating of glass fibers. Background technique [0002] With the rapid development of modern science and technology, a kind of electromagnetic radiation pollution called "invisible killer" has attracted increasing attention from all walks of life. Electromagnetic interference, electromagnetic information leakage and electromagnetic environmental pollution caused by electromagnetic radiation have a great impact on economic construction, national defense security and social life. The impact is becoming more and more serious, and electromagnetic radiation pollution has become a major public hazard in today's society. Using electromagnetic shielding coatings to shield stray electromagnetic waves that interfere with the normal operation of electronic and electrical products is an effective method to preve...

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Problems solved by technology

[0011] The traditional glass fiber electroless plating technology uses sodium hypophosphite (also known as sodium hypophosphite) as the reducing agent. Sodium hypophosphite has certain toxicity, and the sodium hypophosphite solution will explode when heated and evaporated under normal pressure; Phosphorus precipitation and co-deposition of phosphorus and nickel form a nickel-phosphorus alloy coating with high phosphorus content and phosphorus in a dispersed state, which increases the brittleness of the coating and reduces the bonding force and conductivity of the coating, thus affecting the quality of the coating

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