Organic-inorganic hybrid film forming agent, microcapsule type high-temperature self-repairing basalt fiber water-based impregnating agent and preparation method of microcapsule type high-temperature self-repairing basalt fiber water-based impregnating agent

Abstract

The invention discloses an organic-inorganic hybrid film forming agent, a microcapsule type high-temperature self-repairing basalt fiber water-based impregnating agent and a preparation method of themicrocapsule type high-temperature self-repairing basalt fiber water-based impregnating agent. The impregnating agent is prepared from the following components in percentage by mass: 15-28% of a methyl phenyl organic silicon resin emulsion, 10-20% of low-temperature molten glass powder, 3-5% of talcum powder, 1-4% of mica powder, 0.5-1% of a coupling agent KH-550, 0.2-1% of sodium bentonite, and the balance being water. Through the implementation of a coating modification technology, the purposes of improving the high temperature resistance, bundling property and wear resistance of basalt fibers and softening the fibers are achieved, so that the mechanical property of the basalt fibers is improved, and the high-temperature interface performance of a basalt fiber material is improved.

Description

technical field [0001] The invention belongs to the technical field of wetting agents, and relates to a basalt fiber wetting agent, in particular to an organic-inorganic hybrid film-forming, microcapsule type high-temperature self-repairing basalt fiber water-based wetting agent and a preparation method thereof. Background technique [0002] Basalt fiber is a new type of inorganic fiber, which has a series of advantages such as high strength, high temperature resistance, and corrosion resistance. However, the characteristics of inorganic materials also make it more brittle than traditional organic fibers, and it is easy to produce and use. Insufficient damage. The unique physical structure and chemical composition of basalt fiber make it superior to glass fiber and chemical fiber in many technical indicators such as high temperature resistance (continuous temperature resistance of about 300-500 ° C), stability, corrosion resistance, hydrolysis resistance and insulation. fib...

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Problems solved by technology

[0005] The film-forming agents of the above sizing agents are all resin materials, and the organic film layer formed on the surface of basalt fiber has poor temperature resistance

When the basalt fiber is used at high temperature (≥300°C), the organic film layer formed by the sizing agent will undergo thermal decomposition and lose the effect of the sizing agent, which seriously hinders the high-temperature performance advantages of the basalt fiber.

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