Recyclable low adhesion polyurethane materials

摘要

Problem to be solved: to provide a low adhesion polyurethane material recyclable and its preparation method.As the raw material, the hard monomer contains 25% to 40% by weight of the soft monomer, 45% to 65% by weight of the soft monomer, 1% to 25% by weight of the low surface energy compound, the chain elongation agent and the catalyst, and the low surface energy compound is Low adhesion polyurethane material selected from organic fluorine compound or organosilicone compound.Method for preparing low adhesion polyurethane materialSoft monomerChain extenderA hard monomer and catalyst are dispersed in a solventTo form a prepolymer by reaction (1) andA low surface energy compound is added to the prepolymerStep 2: polycondensationFinally,Add chain extender and reactAfter the reaction endCuring and curing polyurethane materials.No selection