The invention relates to a scratch-resistant
coating for pen-writing wall cloth and a preparation method of the scratch-resistant
coating, and belongs to the technical field of coatings, the preparation method of the
coating comprises the following steps: cleaning dust and greasy
dirt on the surface of the pen-writing wall cloth, after plastering, puttying and sand repairing, coating the surface of the pen-writing wall cloth with a coating by using a roller coater, and
drying to obtain the scratch-resistant coating for the pen-writing wall cloth. The coating is self-made, the
acrylic resin with the
acid value and the
viscosity in a proper range is adaptively selected in the coating self-making process, the
refraction coefficient of the
polyester resin is reduced, the transparency is improved, epsilon-
polylysine is added to be inserted in a molecular chain of a
polyester resin
system in a penetrating mode, ordered arrangement of the molecular chain is destroyed, and the transparency is improved. The modified material is added, and ester groups, hydroxyl groups and cyclohexyl groups are introduced to reduce the
crystallinity of the
system, so that the prepared
polyester resin is used for preparing a coating, and the transparency of the coating can be effectively improved; meanwhile, the modified polysiloxane master batch and
erucyl amide are also added, so that the scratch resistance of the prepared coating is improved.