Advantage:
By regulating the chain ratio of EO/THF, it can obtain both hydrophilic and water-resistant, and suitable for waterborne polyurethane coatings. The customer used to test the formula with 20kg PET of molecular weight 2000. The performance is as good as 4220. The produced PU possessed better mechanical properties, permeability, and good biological compatibility. Widely used in high resilience flexible foams, water born coatings, adhesives, elastomer, low temperature material and biological materials. Special molecular weight 500-10000 PET can be provided according to customers' requirement
Technical Parameter
Performance | Specification |
Number average molecular weight | 1000~3000 |
Functionality | Di-functionality 1.85~2.0 Tri-functionality 2.6~3.0 |
Acidity (mgKOH/g) | ≤0.1 |
Water Mass fraction (%) | ≤0.1 |