Inner wall toughening agent for fiber-toughened and heat-resisting optical fiber outer sleeve

Abstract

The invention provides an inner wall toughening agent for a fiber-toughened and heat-resisting optical fiber outer sleeve. The toughening agent is prepared from components as follows: 40-60 parts of glass beads, 50-70 parts of acid-resisting powder particles, 20-25 parts of a 50% sodium hydroxide aqueous solution, 0.5-2 parts of a dispersing agent, 2-18 parts of an emulsifier, 0.5-1 part of a preservative, 0.5-5 parts of a surfactant, 2.5-5 parts of ammonium hydroxide, 2-4 parts of a binder, 50-60 parts of water, 0.9-6 parts of a thickening agent, 1-12 parts of a film-forming agent, 15-20 parts of methyl methacrylate, 10-15 parts of melamine formaldehyde resin, 3-6 parts of polypropylene resin, 20-30 parts of diethylene glycol monoethyl ether acetate and 3-8 parts of nonylphenol polyoxyethylene ether. According to the toughening agent, thermal decomposition temperature and char forming amount of a material are increased, heat stability of the material is improved, continuous degradation of the material is ended, a heat release value of the material is reduced, surface strength of a finished product can be effectively improved, and weather fastness is improved.

Description

Technical field: [0001] The invention relates to the technical field of optical cables, in particular to a fiber-toughened heat-resistant optical cable inner wall toughening agent. Background technique: [0002] Polyimide composite materials are usually compounded with polyimide as the matrix and other substances. Among them, polyimide is used as the matrix and high-performance reinforcing fibers (such as glass fibers, carbon fibers, aramid fibers, etc.) Advanced composite materials, high specific strength, high temperature resistance, light weight of parts, have been widely used to make structural parts of aerospace vehicles, and have made great contributions to the development of aerospace industry. "Currently polyimide is used as the matrix, and The research on the composite of inorganic particles is also attracting more and more attention. As a functional composite material, it has broad application prospects. The inorganic substances and their precursors for polyimide / i...

AI Technical Summary

Problems solved by technology

[0005] For double toughening, a toughening agent is applied on the inner wall of the outer casing to ensure the overall toughness, but most of the existing toughening agents are corrosive to a certain extent and have certain damage to the inner wall of the outer casing

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