Polycaprolactone polyols are obtained by ring opening polymer of caprolactone monomer under the action of initiator and catalyst. It has good thermal stability and flexibility.
Polycaprolactone polyols are common raw materials of polyurethane. They are used as oligomers and modifiers in polyurethane elastomers, elastic fibers, latex, ink adhesives and other raw materials. They can improve toughness, low temperature properties and reactivity. In terms of adhesives, polyurethane adhesives made from polycaprolactone polyols have better color, hydrolytic stability and uniformity than those made from other polyethers and polyesters. In polyurethane artificial leather (PU leather), PCL has better light aging, heat aging and water aging resistance than PU leather synthesized by polyol. In leather finishing agent. Waterborne polyurethane can be synthesized with polyether, etc. The film is soft, ironing resistant, solvent resistant, dry and wet rubbing resistant. It is suitable for the bottom and middle coatings of garment leather, soft leather and wool leather.