Application
It applies to make rods, wheels, sealing rings ,screen plates and other polyurethane elastomer wares.
Characteristics
The wares has good abrasive resistance, oil resistance and excellent mechanical property, changing colors by adding colorant.
Operating point
After the prepolymer vacuum degassing in 80-85, blending with melted MOCA, degassing, pouring, sulfuration molding, applying to manual operation and machine mixing.
Storage
Please storing in a cool and dry place, if you can’t use it up at a time, filling nitrogen and then sealing it. The storage time of original binding is 6 month.
Packing fragment consider revising
20kg or 200kg galvanized iron drum
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|
D3130 |
D3136 |
D3143 |
D3150 |
D3160 |
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Appearance |
Light yellow viscous liquid, long time storing in low temperature is solid |
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MOCAg/100g prepolymer |
8.6 |
10.5 |
12.5 |
14.5 |
17.2 |
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Mixing Temperatureprepolymer/MOCA |
85/120 |
85/120 |
80/120 |
80/120 |
75/120 |
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Gel timemin |
12 |
10 |
9 |
6 |
4 |
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Demould timeh/100 |
1 |
1 |
1 |
1 |
1 |
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Post vulcanizing time(h/100) |
10 |
10 |
10 |
10 |
10 |
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Ware property |
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RigidityShore A |
80±2 |
85±2 |
90±2 |
95±2 |
96±2 |
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Tensible strengthMPa |
40 |
45 |
50 |
50 |
53 |
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Elongation at break% |
760 |
550 |
550 |
500 |
500 |
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Tear strengthKN/m |
80 |
85 |
105 |
105 |
115 |
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Rebound% |
39 |
20 |
20 |
20 |
19 |
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Density |
1.25 |
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