Silicate modified high polymer material for leaking stoppage

Abstract

The invention relates to a silicate modified high polymer material for leaking stoppage, and belongs to the technical field of silicate modification. About 60% by weight of the silicate modified polymer material is a silicate modified aqueous solution component, and about 40% by weight of the silicate modified polymer material is structural flame-retardant isocyanate. The oxygen index is larger than or equal to 35%, the adhesive force is larger than or equal to 1.5 mPa, the highest reaction temperature is smaller than or equal to 95 DEG C, the odor grade (80 DEG C) is smaller than or equal to 3.5, and the fog test is smaller than or equal to 5 mg. Especially, the main component silicate modified aqueous solution endows the coating with good surface resistance. The structural flame-retardant isocyanate endows the flame-retardant material with good flame retardance and toughness, the flame-retardant material does not contain halogen flame retardants, the smoke amount is small, the smoke toxicity index is smaller than or equal to 5, corrosive or irritant halogen hydride gas cannot be released, toxic and cancerogenic substances polybrominated benzoxins and polybrominated dibenzofuran cannot be generated, and the halogen content in coal cannot be increased.

Description

technical field [0001] The invention relates to a silicate modified polymer material for leak plugging, and belongs to the technical field of silicate modification. Background technique [0002] During the excavation process of coal mine roadway, broken or loose coal rock mass often leads to coal mine accidents such as roof fall and chipping, which not only seriously endangers the life safety of miners, but also seriously affects the production efficiency of coal mining enterprises. Therefore, in the production process of coal mines, it is generally necessary to carry out grouting / spraying reinforcement to the broken coal rock mass. There are many types of grouting materials, which are generally divided into inorganic grouting materials and organic grouting materials. Inorganic materials are widely used in water glass cement two-liquid grouting. The material has the advantages of low cost, basically no exothermic reaction, but slow curing speed, low compressive strength and...

AI Technical Summary

Problems solved by technology

[0013] The silicate-modified macromolecule material for air plugging in the present invention uses pre-polymerized isocyanate-modified silicate, which combines the advantages of inorganic grouting material

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