Conductive hollow double-ingredient parallel composite fiber and preparation method thereof

Abstract

The invention relates to the technical field of synthetic fiber, in particular to a conductive hollow double-ingredient parallel composite fiber and a preparation method thereof. The composite fiber is formed by two ingredients of an ingredient A and an ingredient B in parallel; the double-ingredient cross section of the composite fiber is in a transverse eight shape or a dumbbell shape or a bielliptic shape or a double square shape or an I shape; hollow structures are respectively arranged in double ingredients of the composite fiber. The composite fiber and the preparation method have the advantages that the conductive hollow double-ingredient parallel composite fiber has inner and outer double conductive layers in parallel double conductive structures; due to the existence of the doubleconductive layers, a synergistic effect is achieved; the surface area of the conductive layer is greatly increased; high conductivity can be provided; the conductivity is 10 to 104S / m; the compositefiber hollow structure provides an inner conductive layer; the composite fiber is communicated with an outer opening in the drying process for contraction and closing, so that the problem that conductive particles attached on a conduction and coating electric layer at the inner surface of the composite fiber can easily fall off is solved.

Description

technical field [0001] The invention relates to the technical field of synthetic fibers, in particular to a conductive hollow bicomponent parallel composite fiber and a preparation method thereof. Background technique [0002] With the improvement of living standards, the requirements of the general public for clothing are constantly increasing, and the market demand is also following the great strides of the economy. In order to further meet the market requirements, considering the many advantages of the two-component side-by-side composite fiber, the use of this type of fiber The development space is constantly increasing. Therefore, in recent years, the research on two-component side-by-side composite fibers has been very active. Compared with the traditional polyurethane elastic fiber "Lycra", two-component side-by-side composite fibers have many advantages, such as short production process and mechanical properties. High strength, low modulus, excellent tensile and com...

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Problems solved by technology

[0003] In addition to the four conductive polymers of polymer electrolytes, conjugated polymers, charge transfer complexes and metal-organic chelates, other conventional polymers such as polyester, polyamide, polyacrylonitrile, etc. have poor electrical conductivity. , the dielectric constant and electrical conductivity are very low, but with the improvement of the quality of life, conventional polymers can no longer meet the needs of the masses, in order to pursue high-performance clothing materials such as electrical conductivity, antistatic, and electromagnetic shielding , the conductive fiber came into being

The conductivity of conductive fibers can basically meet the needs of production and life, but there are inevitably many shortcomings. For example, the conductive particles of conductive fibers are attached to the surface of the fibers, which are easy to fall off during post-processing and use, and the conductivity is also poor. The preparation of conductive fibers generally has problems such as low yield, unstable quality, poor conductivity stability, low spinnability and high price.

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