Abstract: A structural flame retardant high strength low exothermic polymer grouting material for consolidating, belonging to a technical field of polyurethane material, is produced by combined the polyether polyol and the modified isocyanate in a weight ratio of 100:(100-160), leading to internal reaction temperature ?100° C., strength ?60 mPa, bonding ?3 mPa, oxygen index ?28% while no halogen and no effect on water quality, odor level (80° C.) ?3.5, and fog test ?5 mg (which means no physical additive flame retardant is diffused into the environment). In particular, with no halogen, which is known as environmental hormones, in the plasticizers, there will be less combustion smoke, wherein the present invention will not release corrosive or irritating hydrogen halide gas, nor produce toxic carcinogens polybrominated benzoxins and polybrominated dibenzofurans, thereby avoiding the long-term impact of the material on the environment.

Abstract: A structural flame retardant high strength low exothermic polymer grouting material for consolidating, belonging to a technical field of polyurethane material, is produced by combined the polyether polyol and the modified isocyanate in a weight ratio of 100:(100-160), leading to internal reaction temperature ?100° C., strength ?60 mPa, bonding ?3 mPa, oxygen index ?28% while no halogen and no effect on water quality, odor level (80° C.) ?3.5, and fog test ?5 mg (which means no physical additive flame retardant is diffused into the environment). In particular, with no halogen, which is known as environmental hormones, in the plasticizers, there will be less combustion smoke, wherein the present invention will not release corrosive or irritating hydrogen halide gas, nor produce toxic carcinogens polybrominated benzoxins and polybrominated dibenzofurans, thereby avoiding the long-term impact of the material on the environment.

Abstract: A silicate modified polymer foam material for filling and sealing contains prepolymerized isocyanate and a silicate modified aqueous solution with a mass ratio in a range of 1:(1.2-1.4). In the prepolymerized isocyanate, a mass percentage of P is 4.4%, a mass percentage of N is 7.9%, and a mass percentage of —NCO is 11.9%. The silicate modified aqueous solution includes liquid sodium silicate, small molecule alcohol, water and a catalyst, wherein the liquid sodium silicate, the small molecule alcohol, the water and the catalyst account for 63-66%, 17-20%, 14-17% and 1.5-2.5% of the weight of the silicate modified aqueous solution respectively. A method of preparing the silicate modified polymer foam material for filling and sealing includes mixing the prepolymerized isocyanate with the silicate modified aqueous solution.

Abstract: A silicate-modified polymer grouting material for leakage plugging is provided, which belongs to the technical field of silicate modification, includes 60% by weight of silicate-modified aqueous solution component, and about 40% of structural flame-retardant isocyanate. According to the proportion of the main total amount, the main components are classified into inorganic components, so the silicate-modified polymer grouting material for leakage plugging has excellent flame retardant performance, oxygen index ?35%, adhesion ?1.5 mPa, maximum reaction temperature ?95° C., odor level (80° C.) ?3.5, fog test ?5 mg (without physical additive flame retardants diffusion to the environment). In particular, a main component of the silicate-modified aqueous solution, endows it with good surface resistance.

Abstract: The present invention relates to a silicate-modified high-toughness and low-heat polymer grouting material for reinforcement, which belongs to the technical field of materials. About 60% by weight of the raw materials of the silicate modified grouting material of the present invention is the silicate modified aqueous solution, and about 40% is the structural flame retardant isocyanate, and main components of the polymer grouting material are classified into inorganic components according to the main total proportion. The silicate-modified high-toughness and low-heat polymer grouting material for reinforcement of the present invention has excellent flame retardancy and compressive performance, wherein a compressive strength is ?60 MPa, an oxygen index is ?30%, and a maximum reaction temperature is ?100° C., an odor grade (80° C.) is ?3.5, a fog test is ?5 mg (no physical additive flame retardant diffuses to the environment), bonding is ?3 MPa, a shear strength is ?20 MPa, and a tensile strength is ?20 MPa.