TDI/Polyether Polyurethane Preploymer Hardness 90
1. Description
This is a TDI-terminated polyether pre-polymer which has low viscosity allows it to be processed at reduced temperature for the better heat stability and long pot life. It enjoys a high performance, 90A hardness when cured with MOCA.
2. Application
It applies to make PU rods, castor wheels, PU pad, PU sheet, etc.
3. Product Specification
| NCO Content (%) |
5.0±0.2 |
| Density 25℃ (g/cm3) |
1.15 |
| Viscosity at 85℃ (cps) |
400 |
| Appearance at 25℃ |
Transparent liquid |
4. Operation introduction
| Ratio (Prepolymer/moca ) |
100/14.5 |
| Mix temperature/℃ (Prepolymer/Moca) |
80/120 |
| Gel time/min |
3.5 |
| Postcure (120℃)/h |
10 |
5. Physical Properties
| Hardness/ shore A |
90±1 |
| Tensile Strength/ Mpa |
31 |
| 100% Modulus/MPa |
8.9 |
| 300% Modulus/MPa |
14.6 |
| Elongation at break/% |
460 |
| Tear strength(without nick) / kN/m |
73 |
| Rebound/% |
30 |
| DIN Abrasion/mm3 |
135 |
6. Shelf life
The storage time of original packing is 6 month at the above condition from the date of production.
7. Package
20kg or 200kg per steel drum
8. Safety
Use in a well ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the skin may cause an allergic reaction.Eye protection is extremely important. Always use approved safety glasses or goggles when handling this product.
If Contact Occurs:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. Seek medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes, contact a physician.
Ingestion: If swallowed, contact a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed by medical personnel. Never give anything by mouth to an unconscious person.
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TDI / Polyether Polyurethane Preploymer Hardness 90 Images
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