Silicate-modified polyurethane material for coal mine reinforcement (JG PU•SixOy) – Ruinuo Reinforcement Material (JG PU•SixOy)

Product Description

This product is a two-component grouting reinforcement material composed of silicate-modified polyurethane resin. Component A consists of a "aqueous solution" of nanoparticle silicate and a catalyst, while Component B is made of polymeric isocyanate and additives.

In compliance with the "Safety Management Regulations for Reactive Polymer Materials in Coal Mines (Trial)" and the "Supplementary Safety Technical Requirements and Safety Certification Management Plan for Reactive Polymer Materials in Coal Mines," the product has obtained the Mining Product Safety Certification (Certificate No.: MIF210072) issued by the National Safety Certification Center.

During on-site application, the two components are mixed at a 1:1 volume ratio using a dual-component grouting pump and a specialized mixing grouting gun. The slurry reacts rapidly, forming a high-strength, moderately flexible, and modulus-adjusted composite polymer resin solidification body with properties similar to coal and rock masses. This bonds loose and discontinuous surrounding rock into a continuous, integrated load-bearing structure, effectively restoring and enhancing the overall structural load-bearing capacity of the coal and rock mass.

This product has been granted a National Invention Patent (Patent No.:ZL201410837637.6)

Product Features

• Low viscosity, excellent permeability, and rapid strength development.
• Low reaction temperature, flame-retardant, and non-toxic smoke emission at high temperatures, ensuring high application safety.
• High comprehensive mechanical strength of the solidified mass, with a modulus close to that of coal/rock, making it more suitable for grouting and consolidating fractured coal/rock strata.
• Strong adaptability—reactivity and consolidation strength remain unaffected in water-rich environments.
• Fast and easy construction.

Scope of Application

• Rapid consolidation of loose or fractured coal/rock masses in coal mine and tunnel excavation faces.
• Highly efficient grouting and consolidation of fractured coal/rock strata in water-leakage or water-rich environments.

Technical Parameters

Product Characteristics	Performance Indicators
	Component A	Component B
Appearance	Colorless translucent liquid	Brownish liquid
Mixing Ratio (by volume)	1:1
Flash Point (°C)	Non-flammable (inorganic material)	>150
Peak Reaction Temperature (°C)	90-98
Reaction Properties	Consolidation unaffected by water; adjustable curing time
Compressive Strength (MPa)	40-60
Tensile Strength (MPa)	>15
Shear Strength (MPa)	>15
Bonding Strength (MPa)	>4
Flame Retardancy	Complies with MT113-1995 technical standard for polymer products in coal mines
Bond Strength (MPa)	≥4
Flame Retardancy	Complies with MT113-1995 for mining polymers

Storage and Packaging

• The product is sealed in 25L plastic or iron drums, and the packaging is non-returnable.
• Storage conditions: Keep in a dry, cool, and well-ventilated area. Avoid direct sunlight and rain exposure.
• Temperature range: 5–35°C.
• Shelf life: 6 months.