Aramid fiber reinforced plastic reinforcement, and its preparing process and use

Abstract

A strengthening of aramid fiber reinforced plastic pieces. Composed by the line of aramid fiber reinforced plastics and outer coating, coating is 0.02-0.10 mm thick, the strengthening is 0.5-0.8 mm diameter. Minimum bend radius is less than the six times of their diameter. Process: use O2 plasma modified aramid yarn; enter solution slot, vinyl resin impregnation; enter the mold, mold, heating and molding completely cured, a system of aramid fiber-reinforced plastics; fibre reinforced plastics for preheating; preheating entered extrusion mold, coating; coating after rapid cooling system in the aramid fiber reinforced plastics strengthening of which, coating materials for ethylene acrylic acid copolymer. Advantages are: small compact size, flexible, and tensile performance, a waterproof coating function, and the strengthening of the overall cable closely integrated with the dimensional stability, organization dense and have a certain rigidity, resistance to a rope in the process of heat shrink to help reduce fiber attenuation.

Description

technical field [0001] The invention relates to an aramid fiber-reinforced plastic reinforcement and its preparation process and application. The aramid fiber-reinforced plastic reinforcement is a non-metal reinforcement and is especially suitable for all-dielectric indoor optical cables. Background technique [0002] At present, people have entered the information age. With the continuous acceleration of the construction of my country's information highway and the successive completion of eight vertical and eight horizontal optical fiber networks, people's demand for communication bandwidth is increasing day by day. Fiber-to-the-home (FTTH) has become an inevitable trend in the development of communication information in my country and has attracted much attention. In the near future, as an indispensable communication carrier for the development of all-optical networks in the future, indoor optical cables will completely replace copper cables that currently restrict the dev...

AI Technical Summary

Problems solved by technology

[0004] At present, almost all indoor optical cables use aramid raw yarn as a reinforcement. This kind of aramid yarn as a reinforcement has the following disadvantages: 1. The aramid yarn is in a loose state, and the tensile strength cannot be maximized and utilized; 2. In the cabling process, aramid yarn often does not use one but requires multiple tows to be combined. In order to keep the tension of multiple aramid tows uniform, it is necessary to control the tension of the tows, which is Need to increase special equipment and control technology; 3. Aramid yarn is often distributed around the optical fiber, and it is difficult to realize a flat optical cable structure; 4. Aramid yarn is not easy to be tightly combined with the outer sheath of the optical cable

Due to the existence of these problems, the development process of flat special-shaped indoor optical cables in my country has been restricted.

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