Molecular Formula | C38H70N2O2 |
Molar Mass | 586.97 |
Density | 0.95±0.1 g/cm3(Predicted) |
Boling Point | 642.6±28.0 °C(Predicted) |
Physical and Chemical Properties | EPA Chemical Information Cyclohexane, 2-heptyl-3,4-bis(9-isocyanatononyl)-1-pentyl- (68239-06-5) |
introduction
Dimeric acid diisocyanate (DDI) is a unique aliphatic diisocyanate that can be used to prepare polymers with compounds containing active hydrogen. DDI is a low-viscosity liquid that is easily soluble in most polar or non-polar solvents. It is a typical green biological renewable special isocyanate variety, which can be widely used in various fields such as fabric finishing, elastomers, adhesives and sealants, coatings, and inks.
application
dimer acid diisocyanate (DDI) can be used to prepare polyurethane (urea) elastomers with special properties, fabric surface finishing, adhesives and sealants, paper, leather and fabric water repellent, wood preservation treatment, electrical appliance potting and other applications. 1. DDI has some application prospects in the treatment of water repellent and softening properties of fabrics. It is easy to form a stable water emulsion with water, which can make the fabric durable and soft; as a fabric water repellent, it has a good water repellent effect, and at the same time, it has an obvious effect on improving the water repellent and oil repellent of fluoride fabrics. 2. Polyurethane resin and polyurea resin made of dimer acid diisocyanate (DDI) have good elasticity and ductility, high strength, low water sensitivity, abrasion resistance, chemical solvent resistance and low temperature resistance. At the same time, it is not yellowing. 3. Dimeric acid diisocyanate (DDI) and hydroxyl-terminated polybutadiene (HTPB) have compatibility and reactivity, and the polymer prepared without plasticizer has the characteristics of low hardness than usual. 4. DDI-based polyurea coating has good bonding effect with metal and wood, no cracks, and shows good weather resistance, tensile properties and bonding properties.