Durable carbon black conductive fiber and preparation method thereof

Abstract

The invention provides durable carbon black conductive complex fiber and a manufacturing method thereof. The complex fiber comprises a functional layer and a protective layer, wherein in a circle O2 of the cross section of the complex fiber, the functional layer comprises a part surrounded by three equilong circular arcs L1, L2 and L3 and the periphery of the circle O2; the three equilong circular arcs respectively pass through three equidistant points on a concentric circle O1 of which the radius is smaller than that of the circle O2; and the three equilong circular arcs are non-intersected mutually. The preparation method of the conductive fiber comprises the following steps: evenly mixing conductive carbon black and an additive; then adding fiber-forming high polymer to prepare conductive master batch; and after drying the master batch, preparing the conductive complex fiber from the master batch and the fiber-forming high polymer by a spinning and drafting one step method. Due to the cross-section structure with the special design of the conductive complex fiber, the carbon black in the fiber can not peel off easily, so that the durability is improved. Simultaneously, the mechanical properties of the fiber are improved, and the surface friction coefficient of the fiber is reduced, thereby improving the post processing performance and being more favorable for use for customers.

Description

technical field [0001] The invention relates to a composite conductive fiber and a manufacturing method thereof, in particular to a durable carbon black type conductive fiber and a manufacturing method thereof Background technique [0002] Static electricity generated by clothing due to friction is a phenomenon that is often seen in daily life. The existence of static electricity makes it easier for clothes to absorb dust, which seriously affects the production of high-precision instruments, biopharmaceuticals, food and other industries; at the same time, as we all know, the existence of static electricity increases the possibility of fire and explosion in flammable and explosive places. Therefore, these occasions put forward higher requirements on the performance of the fabric, especially the antistatic performance. Synthetic fibers with the advantages of high strength, good wear resistance, and sufficient sources of raw materials are widely used in various fields of the t...

AI Technical Summary

Problems solved by technology

Among them, the conductive fibers of carbon black in the cortex have good electrical conductivity, but because the carbon black layer is completely exposed, it not only increases the difficulty of processing, but also has a greater risk of peeling off the carbon black layer due to later folding and kneading.

The carbon black in the core layer reduces the functionality of the fiber, making it difficult to enter high-variety purification occasions that require more stringent electrical conductivity.

Other cross-sectional shapes such as 3-point and 4-point varieties may be difficult to process or have insufficient electrical conductivity.

Images