Thermal expanding gel for blocking water and preparation method thereof

Abstract

The application discloses a thermal expanding gel for blocking water and a preparation method thereof. The thermal expanding gel for blocking water comprises the following components in percentages by mass: 80-90% of base oil, 8-12% of water absorbing powder, 1.5-2.0% of an activator, 2-3% of a cross-linking agent, and 3-4% of an expanding agent. Special combination technology of conductors and insulators is used for effectively preventing moisture and water, the product can be normally used in a severe environment with moisture and raininess, and the product can effectively prevent oxidation and corrosion of braiding filaments and aluminium foil, and prolong usage life of cables.

Description

technical field [0001] The application relates to a heat-expandable water-blocking ointment and a preparation method thereof. Background technique [0002] At present, relevant domestic and foreign enterprises produce various brands of communication optical cable filling ointment through their different raw material formulas and processes. The main functions of the cable filling paste are waterproof, anti-volatile, heat-resistant, anti-aging, that is, to prevent water molecules from penetrating to the surface of the coaxial cable; it is an essential material for cable sealing and optical fiber protection, and it can effectively prevent moisture and moisture Intrusion into the interior of the cable is one of the key materials to ensure the quality of communication transmission, and it is widely used in filled communication cables. Existing filling pastes for communication electric (optical) cables are composed of different base oils, thickeners and additives. Generally spea...

AI Technical Summary

Problems solved by technology

If there is an impact, it must be limited within the allowable range, and exceeding the limit will pose a threat to the reliability of the cable