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Address: No.166, Zhengyang Middle Road, Chengyang District, Qingdao City, Shandong Province, China. 266000
Contact name:Louis.liu
Qingdao Exceed Fine Chemicals Co.,Ltd |
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TDI-100/Polyester Polyurethane Prepolymer Shore A91 Special For Industrial Roller
1. Description
This is a TDI-100 based Polyester polyurethane prepolymer.
2. Characteristics
3. Applications
4. Typical properties
| Type | Appearance | Viscosity(mPa.s/85℃) | NCO% | Packing(kg/drum) |
| Solid | 1200 | 4.50-4.70 | 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 | 13.2-13.6 | 7-8 | 80/120 | 10 |
7. Finished products properties
| Item | Hardness(Shore A) | Tensile strength(MPa) | Tear strength(KN/m) | Rebounding(%) |
| Physical properties | 91 | 50-52 | 95 | 32 |
