Organic reinforcement mine material and preparation method thereof

Abstract

Disclosed are an organic reinforcement mine material and a preparation method thereof. A cross-linked polymer is generated from addition polycondensation reaction of mixed polyether polyol and rough MDI (diphenylmethane diisocyanate), a cross-linked polymer is generated from polymerization reaction of general unsaturated polyester resin and macromonomer free radical of hydroxyethyl acrylate-terminated polyurethane prepolymer, and the two cross-linked polymers are enabled to interact to generate a full interpenetrating network structure polymer. The preparation method includes: according to setmass portion, adding raw materials for a component A into a mixing container sequentially, and evenly mixing by stirring at normal temperature to obtain the component A; adding raw materials for a component B into another mixing container sequentially, and mixing uniformly by stirring at normal temperature to obtain the component B; evenly mixing the component A and the component B at the mass ratio of 1:1 by stirring quickly at normal temperature, and allowing the mixed materials to react and cure quickly so generate the organic reinforcement mine material.

Description

technical field [0001] The invention relates to the technical field of reinforcement materials for mines, in particular to an organic reinforcement material for mines and a preparation method thereof. Background technique [0002] With the increase of mineral mining depth and the emergence of complex terrain, dangerous accidents such as roof leakage and chipping caused by fault fracture zones and unstable strata not only affect the production efficiency of enterprises, but also seriously threaten the life safety of miners. Therefore, in the production process, grouting reinforcement is generally required. At present, the most widely used organic polymer grouting reinforcement materials include polyurethane, urea-formaldehyde, and phenol-formaldehyde. Although urea-formaldehyde and phenolic reinforcement materials have the advantages of good permeability, adjustable gel speed, and low cost, their disadvantages such as low strength and brittleness prevent them from being wide...

AI Technical Summary

Problems solved by technology

Although urea-formaldehyde and phenolic reinforcement materials have the advantages of good permeability, adjustable gel speed, and low cost, their disadvantages such as low strength and brittleness prevent them from being widely recognized.

Polyurethane materials have the advantages of adjustable curing speed, high compression resistance, high bond strength, and good toughness, but the material itself is high in cost and flammable. In addition, the material reacts with a large heat release, and there are many safety production accidents caused by polyurethane reinforcement materials.