Product Details
Place of Origin: China
Brand Name: EXCEEDCHEM
Certification: ISO9001:2008
Model Number: TDI-80/Polyester Polyurethane Prepolymer Shore A92
Payment & Shipping Terms
Minimum Order Quantity: 1mt
Price: FOB Qingdao usd3.0/kg
Packaging Details: 20kg/drum; 200kg/drum
Delivery Time: 5-8 work days
Payment Terms: L/C, T/T
Supply Ability: 3000mt/month
NCO%: |
4.30-4.50 |
MOCA%: |
12.5 |
Hardness: |
Shore A92 |
Raw Material: |
TDI-80 Based |
Appearance: |
Solid |
Application: |
Sieve Plate |
NCO%: |
4.30-4.50 |
MOCA%: |
12.5 |
Hardness: |
Shore A92 |
Raw Material: |
TDI-80 Based |
Appearance: |
Solid |
Application: |
Sieve Plate |
TDI-80/Polyester Polyurethane Prepolymer Shore A92
1. Description
This is a TDI-80 based Polyester polyurethane prepolymer.
2. Characteristics
(1) High oil resistance
(2) Abrasive resistance
(3) Good michanical performance
3. Applications
(1) Sieve plate
(2) Machine parts
(3) Sealing ring
(4)Roller
4. Typical properties
| Type | Appearance | Viscosity(mPa.s/85℃) | NCO% | Packing(kg/drum) |
| Solid | 1400-1600 | 4.30-4.50 | 20 or 200 |
5. Operating Procedure
First, the prepolymer should be preheated in 80-85℃. Second, after vacumming, the prepolymer is to be mixed with melting MOCA evenly. Third, with degassing, casting into mould, and vulcanization,and then demould. Lastly, the finished product should be post vulcanized.
6. Reaction parameters
| Item | MOCA (%) | Gel time(min) | Mixing temperature(℃) | Post vulcanization(h) |
| Specification | 12.5 | 4-4.5 | 80/120 | 10 |
7. Finished products properties
| Item | Hardness(Shore A) | Tensile strength(MPa) | Tear strength(KN/m) | Rebounding(%) |
| Physical properties | 92 | 46-48 | 95-99 | 37 |
