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Brand Name : EXCEEDCHEM
Model Number : TDI-80/Polyether Polyurethane Prepolymer Shore A68-70
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% : 2.80-2.95
MOCA% : 8-8.3
Color : colorless liquid
Hardness : Shore A68-70
Base : TDI-80/Polyether
TDI-80/Polyether Polyurethane Prepolymer Shore A68-70
1. Description
This is a TDI-80 based polyether polyurethane prepolymer.
2. Characteristics
3. Applications
4. Typical properties
Type | Appearance | Viscosity(mPa.s/85℃) | NCO% | Packing(kg/drum) |
Liquid | 200-250 | 2.80-2.95 | 20/200 |
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 | 8-8.3 | 11-13 | 85/120 | 10 |
7. Finished products properties
Item | Hardness(Shore A) | Tensile strength(MPa) | Tear strength(KN/m) | Rebounding(%) |
Physical properties | 68-70 | 6-7 | 25-30 | 50 |
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Shore A68 Colorless Liquid TDI Based Polyurethane Images |