Alkali-free glass fiber impregnating agent used for pipeline chopping

Abstract

The invention relates to an alkali-free glass fiber impregnating agent used for pipeline chopping. The impregnating agent is prepared from a coupling agent, a lubricant, a film forming agent, a PH value modifier and deionized water, wherein the film forming agent is a mixture of a polyester emulsion, a polyurethane emulsion and a polyvinyl acetate emulsion, and the percentage of the mass usage amount of each component accounting for the total mass of the impregnating agent is expressed as follows: 0.5-10% of the coupling agent, 0.1-5% of a lubricant A, 0.2-6% of a lubricant B, 0.5-10% of a film forming agent A, 2-20% of a film forming agent B, 5-30% of a film forming agent C, 0.01-8% of the pH value modifier and the balance of the deionized water. According to the impregnating agent provided by the invention, the produced pipeline chopped yarn has good choppability and dispersibility; no static electricity exists, and broken filaments are less; the soaking is quick; and the impregnating agent has good mechanical properties, and is well combined with unsaturated polyester resin (UP) and vinyl ester resin (VE), and suitable for pipelines, double-walled tanks and the like.

Description

technical field [0001] The invention belongs to the field of glass fiber sizing, in particular to a novel alkali-free glass fiber sizing for pipe chopping Background technique [0002] FRP pipe is a lightweight, high-strength, corrosion-resistant non-metallic pipe. FRP pipes are used in petroleum, chemical and drainage industries. The production of FRP pipes in my country is developing rapidly, and the quantity is increasing year by year. FRP pipes made of pipe chopped strands have excellent corrosion resistance and long service life; the inner surface is smooth; the inner surface of FRP pipes is very smooth; good heat resistance and frost resistance; light weight and high strength; Good wear resistance; low maintenance cost, strong adaptability; low thermal conductivity, good thermal insulation performance; high pressure bearing capacity; no pollution to the conveying medium; avoid secondary pollution of the conveying medium. [0003] Alkali-free glass fiber sizing produ...

AI Technical Summary

Problems solved by technology

The one-time investment of glass steel pipe is slightly higher, but the material is lighter. Compared with other materials with the same specification, the price is not much different

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