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| Place of Origin: | China |
| Brand Name: | ExceedChem |
| Certification: | ISO9001:2008 |
| Model Number: | PPG/TDI prepolymer 90A |
| Minimum Order Quantity: | 1000kgs |
|---|---|
| Packaging Details: | 20kg/drum; 200kg/drum |
| Delivery Time: | 10 working days |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 1000 tons per month |
PPG/TDI Polyurethane Prepolymer-90A
(equivalent imuthane 32-90A)
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, 94A hardness when cured with MOCA.
2. Application
It applies to make PU rods, castor wheels, etc.
3. Product Specification
| NCO Content (%) | 5.0±0.2 |
| Specific Gravity at 25℃ (g/cm3) | 1.14 |
| Viscosity at 80℃ (cps) | 450 |
| Color | White solid |
4. Operation introduction
| Ratio (Prepolymer/moca ) | 100:14.5 |
| Mix temperature/℃ (Prepolymer/Moca) | 80/120 |
| Mould temperature/℃ | 100 |
| Gel time/min | 3.5 |
| Postcure (120℃)/h | 10 |
5. Physical Properties
| Hardness/ shore A | ASTM D2240 | 90±2 |
| Tensile Strength/ Mpa | ASTM D412 | 31 |
| 100% Modulus/MPa | ASTM D412 | 8.9 |
| 300% Modulus/MPa | ASTM D412 | 14.6 |
| Elongation at break/% | ASTM D412 | 460 |
| Tear strength(without nick) / kN/m | ASTM D624 | 73 |
| Tear strength(with nick) / kN/m | ASTM D624 | 25 |
| Rebound/% | ASTM D1054 | 30 |
| DIN Abrasion/mm3 | GB/T9867 | 125 |
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.
Customers finished products show:
