A kind of PCM wear-resistant protective material and preparation method thereof

Abstract

The invention relates to the technical field of polymer composite materials, in particular to a PCM wear-resistant protective material and a preparation method thereof. The raw materials required for its preparation include A component, B component and C component with a mass ratio of (80-100):(30-60):(700-1000), and A component includes polyester modified epoxy Resin, reactive diluent, toughener and flame retardant, B component is modified amine curing agent, C component includes silicon carbide, iron oxide, silicon oxide, calcium carbonate, talc, carbon black and aluminum hydroxide one or more of them. The PCM wear-resistant protection material of the present invention has wear-resisting (material abrasion ≤0.04kg / m 2 ), high strength (compressive strength ≥ 100MPa), good toughness (flexural strength ≥ 30MPa), acid and alkali corrosion resistance (20% resistance to conventional inorganic acid and alkali media), heat resistance, flame retardancy, and room temperature molding advantages, to meet the protection performance At the same time, it does not increase the load of the building structure.

Description

Technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a PCM wear-resistant protective material and a preparation method thereof. technical background [0002] Ore trough, hopper and silo structures are widely used in metallurgy, petrochemical, electric power, coal, construction and other fields. These structures are usually made of concrete or steel, and their structural surfaces have been subjected to material erosion wear and erosion wear for a long time. As the erosion extends from the surface layer to the inside of the structure, it is easy to cause the structure to be destroyed, which will eventually shorten the service life of the building and affect the production and safety. To solve this problem, it is necessary to set a wear-resistant protective layer inside the structure. [0003] Traditional wear-resistant protective materials can be divided into prefabricated plates and coated mortar. Among them, prefabri...

AI Technical Summary

Problems solved by technology

However, the heat resistance is poor, and it cannot meet the wear resistance requirements for media with a temperature of 80-300 °C such as sintered ore.

It cannot be formed at low temperature and normal temperature, and the price is relatively expensive

The installation process of the liner is hanging, and it often falls off during use, and the falling off is easy to block the channel of the silo

[0006] The smear / spray type mortar has high construction efficiency and good integrity. The material is usually Portland cement-based material. The on-site molding needs a 5-7 day curing cycle. If the curing time and temperature do not meet the material molding requirements, the sprayed coating cannot Form the design required strength, and then affect the overall wear resistance

If the construction time is short, the repair project is required to be put into use immediately after the construction is completed, which cannot meet the demand

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