Water resistance aramid fiber yarn and method for producing the same

Abstract

This invention relates to a water-proof aramid fiber yarn, which comprises ionic hydration, caustic soda, acroleic acid, aramid fiber yarn, acrylamide, potassium peroxodisulfate, and alcohol in a certain ratio; the manufacturing method comprises the following steps: a) mixing caustic soda and hydration to prepare caustic soda water solution; b) adding acroleic acid; c) adding acrylamide; d) adding potassium peroxodisulfate and mixing; e) adding alcohol and mixing to generate polyaromatics organic solvent; f) adding aramid fiber yarn to soak, drying and generating to molecular crystal. Said invention can be used in non-metal ADSS optical cable, indoor flexible-cable, which can prevent water.

Description

technical field [0001] The invention relates to an aramid yarn used for wrapping communication optical cables in the technical field of electric power communication to enhance the tensile strength of the communication optical cables, in particular to a water-blocking aramid yarn and a production method thereof. Background technique [0002] With the development of power communication, optical cables are increasingly used in power lines, and ADSS all-dielectric non-metallic self-supporting optical cables are currently being widely used. Due to the large span of the optical cable of the power tower, according to the factors such as wind load, ice load, sag and its own weight of the geographical and climatic conditions in the installation area, the mechanical tensile strength of the optical cable is very high. The mature process structure chooses aromatic polyamide fiber (kevlaR), commonly known as aramid yarn. When the aramid yarn is used in the optic...

AI Technical Summary

Problems solved by technology

[0003] The medium for optical cable transmission signal is optical fiber, and the element that is easy to be corroded by optical fiber is hydrogen ion. If the optical cable is suspended in the air and water enters, hydrogen will be folded, causing the water peak to attenuate. Optical cable transmission, if it is not controlled, water will flow longitudinally along the cable core, which will damage the optical fiber, splice box and components and even cause business interruption

[0004] According to the analysis of the ADSS optical cable standard of the Ministry of Information Industry, the ADSS all-dielectric non-metallic self-supporting optical cable produced by all domestic manufacturers has failed to meet the full-section water-blocking requirements of the aramid yarn PE layer at the outer sheath reinforcement.