Preparation method of blocked self-healing gloss oil

The invention belongs to the technical field of high polymer materials, and relates to a preparation method of end-capped self-healing gloss oil, which comprises the following steps: dissolving functional silane in a solvent, adding KBr/peracetic acid solution prepared according to the ratio of 1mol: 1mol, keeping the temperature, adjusting the pH value to 4.5-6.8 with acid, and removing the solvent to obtain secondary alcohol containing a dynamic reversible covalent structure; or dissolving functional silane with a solvent, adding a KF/H2O2 solution prepared according to 3mol: 5mol, adding a KHCO3/methanol solution prepared according to 1mol: 1mol, preserving heat, and removing the solvent to obtain the secondary alcohol containing the dynamic reversible covalent structure; dissolving the polyalcohol, the isocyanate, the fatty acid, the chain extender and the catalyst, adding the secondary alcohol containing the dynamic reversible covalent structure, cooling the system to room temperature, and adjusting the