High-strength alkali-free glass fibre direct roving sizing agent for optical cable strengthening core

Abstract

The invention discloses a size of high-strength alkali-free glass fibre direct yarn used for a reinforced core of an optical cable, comprising coupling agent, lubricant, film forming agent A, film forming agent B, film forming agent C and a pH value regulator; the solid weight of all the materials accounts for 5 to 10 percent, the rest of materials is water, and the content of the water accounts for 90 to 95 percent of the total weight of the size; the coupling agent adopts silane coupling agent and accounts for 3 to 10 percent of the solid weight of the size; the lubricant adopts unsaturated olein lubricant and accounts for 1 to 10 percent of the solid weight of the size; the film forming agent A, the film forming agent B and the film forming agent C respectively adopts one of epoxy emulsion, polyester emulsion and polyvinyl acetate emulsion, wherein, the film forming agent C selects compound with low degree of polymerization, the combination of the film forming agent A and the film forming agent B accounts for 80 to 85 percent of the solid weight of the size, the film forming agent C accounts for 1 to 5 percent of the solid weight of the size, the pH value regulator adopts acid and accounts for 1 to 5 percent of the solid weight of the size and the pH value of the size is 2 to 8. The size has good compatibility with vinyl resin and epoxy resin and can lead the strength of the glass fibre reinforced plastic of the product to be improved.

Description

technical field [0001] The invention relates to a glass fiber-reinforced thermosetting resin technology, in particular to a high-strength alkali-free glass fiber direct yarn sizing agent for optical cable reinforcement cores. Background technique [0002] In the past, phosphating steel wire was used as the strengthening core of the optical cable, but as a metal material, its corrosion resistance is poor, the service life is short, and it is susceptible to electromagnetic interference, which affects the transmission performance; and the specific gravity of the metal is large, and the production efficiency and yield rate are low. . With the rapid development of science and technology, the use of non-metallic materials to replace has become the current development direction. In particular, the use of resin-based, glass fiber-reinforced FRP materials has been the subject of application and research in the field of fiber optic cable reinforcement cores. [0003] The main perfor...

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Problems solved by technology

[0002] In the past, phosphating steel wire was used as the strengthening core of optical cables, but as a metal material, its corrosion resistance is poor, its life is short, and it is susceptible to electromagnetic interference, which affects transmission performance ; and the proportion of metal is large, the production efficiency and yield are low