PPG/TDI series Polyurethane Pre-polymer shore A60- shore D60
Polyether-TDI PU Pre-polymers
Application:It can be used to make rods, caster wheels, rollers,
Sealing rings, sieve plates and other polyurethane elastomers.
Characteristics:The finished products have good abrasion resistance, Water resistance, germ proof, excellent mechanical properties, color regulating by adding pigment.
Process Points:After the performed polymer vacuum degassing in 80～85 ℃, blending with melted MOCA, vacuum degassing, casting, vulcanization moulding. It is apply to manual or casting machine.
Storage:Store in a cool and dry place,If you can ’t use it up at a time, filling nitrogen gas and then sealing it. The storage time of original packing is 6 month.
Packing:20Kg/drum or 200Kg/drum
| Type |
JY2122A |
JY2125A |
JY2128A |
JY2133A |
JY2138A |
JY2143 |
| NCO content % |
2.2±0.2 |
2.5±0.2 |
2.8±0.2 |
3.3±0.2 |
3.8±0.2 |
4.3±0.2 |
| Appearance at 20℃ |
Colorless transprent liquid |
|
MOCA/g (100g
prepolymer)
|
6.5 |
7.4 |
8.3 |
9.8 |
11.2 |
12.7 |
| Viscosity (85℃) /mPa · s |
1200 |
700 |
600 |
650 |
500 |
230 |
| Mixing Temperature /℃ |
80/115 |
85/115 |
85/115 |
80/120 |
80/115 |
80/115 |
| Gel time/min |
14-20 |
11-14 |
8-12 |
6-9 |
5-8 |
4-6 |
| Post cure time(100 ℃)/h |
16 |
16 |
16 |
16 |
16 |
16 |
| Hardness(Shore A) |
62 |
65 |
70 |
75 |
80 |
85 |
| 100% Modulus /MPa |
2 |
2 |
3 |
3 |
4 |
4 |
| 300% Modulus /MPa |
3 |
4 |
5 |
6 |
9 |
10 |
| Tensile strength /MPa |
8 |
10 |
12 |
14 |
15 |
22 |
| Elongation at break/ % |
700 |
650 |
600 |
500 |
480 |
450 |
| Tear Strength (without Nick) |
42 |
45 |
50 |
63 |
68 |
65 |
| Rebound / % |
60 |
55 |
50 |
45 |
45 |
35 |
| Specific gravity (25℃) (g/ cm3) |
1.1 |
1.07 |
1.07 |
1.08 |
1.1 |
1.08 |
| Abrasion loss /mm³ |
150 |
160 |
150 |
130 |
135 |
140 |
Product Tags:
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PPG TDI Series Polyurethane Pre Polymer Shore A60- Shore D60 Images
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