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  • 煤矿喷涂堵漏风用聚氨酯材料YK-421.png

Polyurethane material for spraying and plugging wind leakage in coal mine YK-421

YK-421 is a kind of organic polymer two-component rapid foaming grouting material, which has the characteristics of high foam strength, fast foaming, large foaming multiple and good flame retardancy.

Product Classification:

Coal Mine Spraying Plugging Wind Series Products

Key words:

Polyurethane material for spraying and plugging wind leakage in c

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Detailed introduction

Product overview

YK-421 is a kind of organic polymer two-component rapid foaming grouting material, which has the characteristics of high foam strength, fast foaming, large foaming multiple and good flame retardancy. It is suitable for rapid sealing of underground roadways in coal mines, rapid construction of protective layers for sealing, etc.

Product features

1. Fast foaming and large foaming multiple, effectively reducing the comprehensive cost.

2. Solvent-free, high flash point, flame retardant, suitable for quickly sealing roadways and blocking gas.

Scope of application

1. The use of tunneling roadway, coal mine underground due to gas will appear large area, irregular infiltration, rapid blocking of gas, eliminate hidden dangers, etc.

2. Rapid sealing to prevent spontaneous combustion of coal seams and leakage of harmful gases caused by air leakage between the goaf and the mining area.

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

Items

Indicators

Component A

Component B

Slurry properties

 

Appearance

Colorless transparent to light yellow liquid

Dark brown liquid

Viscosity (mPa·s)

150～350

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)

≤100

Start foaming time(s)

3~10

Termination foaming time(s)

10-20

Foaming multiple

≥15

Flame retardant

Flame retardant

Surface resistance (Ω)

≤3×108

Dimensional stability(70°C±2,48h)%

≤0.1

Compressive strain resistance 10%, kPa

≥150

Packaged shipment

Production equipment

Quality inspection

 

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