Colorless TDI 100 Based Polyester Polyurethane Prepolymer

Colorless TDI 100 Based Polyester Polyurethane Prepolymer

1. Description

This is a TDI-100 based Polyester polyurethane prepolymer.

TDI based products are less sensitive to moisture, have shorter demould times and more user friendly than MDI product.

Polyester based polyurethanes have superior cut, tear, abrasion, oil and solvent resistance.

2. Characteristics

• High oil resistance
• Abrasive resistance
• Good michanical performance

3. Applications

• Sieve plate
• Machine parts
• Sealing ring
• Roller

4. Typical properties

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

7. Finished products properties

8. Effects of curative level

All physical properties of elastomers are sensitive to curative level. The curative level is often expressed as % theory. The table below 

shows how physical properties vary with % theory.