Composition for protecting pvc waterproof sheet, partial division type pvc waterproof sheet coated its composition, partial division type construction structure and method for complex waterproofing using partial division type pvc waterproof sheet

The present invention relates to a composition for protecting a PVC sheet, a partial division type PVC sheet coated with the composition for protecting a PVC sheet, and a partial division type complex waterproof structure and a construction method using the partial division type PVC sheet. The purpose of the present invention is to provide: the composition for protecting a PVC sheet, which prevents problems such as wrinkle deformation of the PVC sheet caused by a solvent of polyurethane applied to the upper portion; the partial division type PVC sheet coated with the composition; the partial division type complex waterproof structure which is separable and blocks cracks using the partial division type PVC sheet; and the construction method using the partial division type PVC sheet. The composition for protecting the PVC sheet of the present invention comprises 80-90 parts by weight of xylene, 60-70 parts by weight of low density polyethylene, 60-70 parts by weight of polycarbonate, 50-60 parts by weight of polypropylene, 50-60 parts by weight of polyethylene terephthalate, 30-40 parts by weight of dimer acid, 30-40 parts by weight of polyethyleneoxy lauryl amine ether, 10-20 parts by weight of hydrogen polysiloxane, and 5-10 parts by weight of polyoxyethylene monolaurylate in 100 parts by weight of high density polyethylene.