Preparation method of high-performance conductive glass fiber

Abstract

The invention discloses a preparation method of a high-performance conductive glass fiber, and relates to the technical field of production of glass fibers. The preparation method comprises four process steps of purification and coarsening treatment, sensitization and activation treatment, cleaning and chemical nickel plating. According to the preparation method disclosed by the invention, a layer of a conductive metal is plated on the surface of the glass fiber by adopting a nickel plating method to ensure that the glass fiber has good conductivity; by completing purification, coarsening, sensitization and activation treatments of the glass fiber in the prior period of nickel plating, nickel can be well combined with the glass fiber; the glass fiber is relatively good in luster, high in plated layer stability and difficult in oxidation; and optimized sensitizing solution and palladium chloride activating solution accelerate the proceeding of later-period nickel plating and shorten the reaction time. The preparation method is simple in whole process and strong in operability.

Description

technical field [0001] The invention relates to the technical field of glass fiber production, in particular to a preparation method of high-performance conductive glass fiber. Background technique [0002] With the rapid development of the electronic industry, electronic instruments and meters are becoming more and more popular. However, these electronic instruments with plastic shells may become electromagnetic wave emission sources and pollute the electromagnetic space during use, or receive external electromagnetic interference as a receiving source. Electromagnetic interference ( EM I) will make the electronic instrument without shielding function malfunction and affect the normal operation of the instrument. In order to solve the above problems, the plastic used as the electronic instrument shell must be endowed with conductivity, so that it has the ability to shield electromagnetic waves, so that the plastic has There are two basic methods for electrical conductivity,...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the electronic industry, electronic instruments and meters are becoming more and more popular. However, these electronic instruments with plastic shells may become electromagnetic wave emission sources and pollute the electromagnetic space during use, or receive external electromagnetic interference as a receiving source. Electromagnetic interference ( EM I) will make the electronic instrument without shielding function malfunction and affect the normal operation of the instrument. In order to solve the above problems, the plastic used as the electronic instrument shell must be endowed with conductivity, so that it has the ability to shield electromagnetic waves, so that the plastic has There are two basic methods for conductivity, one is to spray a layer of conductive substances on the surface of the plastic, such as metal, and the other is to mix conductive fillers with resin to prepare conductive plastics.

[0003] In recent years, the use of conductive fiber fillers and resin substrates to prepare conductive plastics with shielding properties is becoming a research hotspot. Commonly used fiber types include: metal fibers, carbon fibers, organic fibers, etc., but these fiber fillers are widely used. , mechanical properties, electrical properties, etc., due to the advantages of high strength, good electrical conductivity, easy molding, and low cost, metal-coated glass fiber is an excellent conductive filler. The application number is CN 201410220597.0, which discloses a conductive The production process of glass fibers, the composition of the conductive glass fibers is 95%-70% by weight of matrix glass and 5%-30% by weight of nano-silver. The steps of the production process for preparing the conductive glass fibers are: Melt the raw materials for the production of matrix glass; pull them into glass fiber filaments; immerse the glass fibers in the nano-silver glue solution for 15-20 seconds, and after the surface is fully covered by the nano-silver glue, dry them with hot air at 70°C to initially obtain a conductive Glass fiber; the conductive glass fiber is put into deionized water and soaked for 40-60S, and dried to obtain a glass fiber finished product with strong conductivity. The production cost of this embodiment is relatively low, and the preparation of nano-silver glue is simple and easy to operate; The electrical conductivity of all metals is the best, so that glass fiber can play a role in more fields, but this kind of glass fiber also has the problem of weak electrical conductivity, and the overall preparation process is not easy to operate