| abstract |
The invention discloses an organic polymer ultra-low temperature reinforcement material for coal rock mass and a preparation method thereof, and belongs to the technical field of organic polymer reinforcement material for coal rock mass. It is formed by mixing A component, B component and C component in a volume ratio of (0.95-1.05):(0.95-1.05):(0.15-0.25), wherein the A component is made of polyether polyol Made from a mixture with polyester polyol, diluent, water and hydrolysis stabilizer; the B component is made from a mixture of polymerized MDI and liquefied MDI, NCO-terminated prepolymer, animal fat and high-efficiency flame retardant ; The C component is made of chain extender, pore opener, catalyst, triethanolamine and antioxidant. The organic macromolecule ultra-low temperature reinforcement material for coal and rock mass of the invention is suitable for tunnel excavation, reinforcement under soft foundation structural conditions in various mine mining processes, and temporary reinforcement of bridges and dams. |