Spraying waterproof paste for optical cable

Abstract

The invention relates to a spraying waterproof paste for an optical cable, which mainly comprises the following components: hydrogenated white oil, oil separation inhibitor, tackifier, pour point depressant, antioxidant, thickener, dispersant, emulsifier, super-absorbent and water repellent. The synthesized product of the paste has characteristics of temperature resistance and salt water resistance and has a super-strong water absorption capacity, a high water absorption speed and a certain expansion height and gel performance after the water absorption.

Description

1. Technical field [0001] The invention relates to a water-blocking compound, in particular to a spray-coated water-blocking paste for optical cables. It is suitable for surface spraying of communication optical cables, steel strips, aluminum strips, alloy strips and non-woven fabrics, or filling the air gaps between loose tubes of optical cables, or filling the air gaps in the cores of multi-conductor wires and cables, or filling the above structures The combination of the cable and the gap of any other cable components to prevent water or other fluids from flowing or migrating into the cable; provide a good waterproof buffer for the cable. 2. Background of the invention [0002] It is well known in the optical cable industry that changes in the ambient environment can create an air pressure differential between the inside and outside of the plastic jacket tube. This often results in undirected diffusion of moisture from the outside of the fiber optic cable to the inside, ...

AI Technical Summary

Problems solved by technology

For example, a photoelectric lightning strike or a mechanical impact will cause a crack in the optical cable sheath, allowing water to enter it. If the water continues to flow along the longitudinal direction of the optical cable to the cable splicing and sealing, resulting in a reduction in the transmission performance of the optical cable; in the past In the production process of optical cable products, ordinary cable paste is mainly used to prevent water seepage and moisture of the optical cable. Expansion type) The production process of the mixed use structure, the water blocking tape is used to prevent water from entering the core along the closed end of the optical cable through the sheath, generally speaking, this water blocking tape is a hierarchical structure, including two layers The water-blocking swelling powder between the polyester belts, as time goes by, this structure often does not achieve the desired effect; especially in sea water or harsh climate environments (such as: high temperature, cold low temperature, depressions, ravines, etc. ) is particularly prominent; once the optical cable is damp or flooded, it will directly affect the transmission performance of the optical cable

[0003] The purpose of the research and development of this product is to provide a spray water-blocking paste for optical cables in order to solve the above problems, so as to solve the problem of water seepage and protection of optical cables under various environmental and climatic conditions, so as to ensure the transmission of optical cables performance