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  • 煤矿充填密闭用聚氨酯材料YK-201.png

Polyurethane material for coal mine filling and confinement YK-201

YK-201 is an organic two-component foaming/filling type grouting material, which has the characteristics of fast foaming, large foaming multiple, solvent-free, low odor and good flame retardancy.

Product Classification:

Coal Mine Filling And Sealing Series Products

Key words:

Polyurethane material for coal mine filling and confinement YK-20

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Detailed introduction

Product overview

YK-201 is an organic two-component foaming/filling type grouting material, which has the characteristics of fast foaming, large foaming multiple, solvent-free, low odor and good flame retardancy. The slurry is two-component independent packaging, there is no need to weigh the grout on site, as long as the A component and B component are mixed by the two-liquid grouting pump at a volume ratio of 1:1, the grout can be carried out.

Product features

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

2. The raw materials are non-toxic and harmless, high flash point, especially suitable for construction on occasions with high safety requirements;

3. Good flame retardancy, surface temperature 50-60 degrees, internal will not exceed 95 degrees, conducive to use in coal mines.

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

 

 

Slurry properties

 

Component A

Component B

Appearance

Light yellow to colorless transparent liquid

Dark brown liquid

Viscosity (mPa·s/25°C)

150～450

200～250

Flash point(°C)

Does not burn

＞200

Specific gravity(kg/m3)

1020±10

1230±10

 

 

 

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

5-80

Flame retardant

Flame retardant

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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