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Brand Name : EXCEEDCHEM
Model Number : TDI-80/Polyester Polyurethane Prepolymer Shore A92
Certification : ISO9001:2008
Place of Origin : China
MOQ : 1mt
Price : FOB Qingdao usd3.0/kg
Payment Terms : L/C, T/T
Supply Ability : 3000mt/month
Delivery Time : 5-8 work days
Packaging Details : 20kg/drum; 200kg/drum
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 |
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Abrasive Resistance Shore A92 TDI Based Polyurethane For Sieve Plate Images |