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  • 煤矿充填密闭用硅酸盐改性聚氨酯材料YK-202.png

Silicate-modified polyurethane material for coal mine filling and confinement YK-202

YK-202 is a two-component foaming/filling type grouting material made of sodium silicate and isocyanate with a volume ratio of 1:1, with fast foaming, large foaming multiple, solvent-free, small odor, non-combustible, etc., suitable for quickly filling the voids of broken coal seams and rock formations and plugging leakage air.

Product Classification:

Coal Mine Filling And Sealing Series Products

Key words:

Silicate-modified polyurethane material for coal mine filling and

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Detailed introduction

Product overview

YK-202 is a two-component foaming/filling type grouting material made of sodium silicate and isocyanate with a volume ratio of 1:1, with fast foaming, large foaming multiple, solvent-free, small odor, non-combustible, etc., suitable for quickly filling the voids of broken coal seams and rock formations and plugging leakage air.

Product features

1. Fast foaming, large foaming multiple, high filling efficiency.

2. Solvent-free, high flash point, especially suitable for construction on occasions with high safety requirements.

3. Non-combustible, surface temperature 60-80 degrees, internal reaction temperature less than 100 degrees.

4. Good adhesion to rock formations, concrete and other construction surfaces.

Scope of application

1. Fill the voids in the broken coal seam or rock formation, the pores in the tunnel cavern, etc.

2. Seal the coal seam goaf area and abandoned roadway to prevent air leakage, filling the working face or roadway holes, and prevent gas accumulation.

Performance indicators (laboratory data, subject to pressure and temperature in practical applications)

Items

Indicators

Component A

Component B

Slurry properties

 

Appearance

Light yellow to colorless transparent liquid

Dark brown liquid

Viscosity (mPa·s)

150～450

200～250

Flash point(°C)

Does not burn

＞200

Specific gravity(kg/m3)

1450±100

1230±100

Reactive properties

Proportion of use (volume ratio)

Component A: Component B = 1:1

Maximum reaction temperature(°C)

＜95

Start foaming time(s)

10-120s

Termination foaming time(s)

30s-180s

Foaming multiple

10-50

Flame retardant

Non-combustible

Dimensional stability(70°C±2,48h)%

≤0.1

Compressive strain resistance 10%, kPa

200 (15x foaming as an example)

Packaged shipment

Production equipment

Quality inspection

 

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