Hot-melt pressure-sensitive adhesive for heat-resistant high-viscosity woven cloth adhesive tape and preparation method of hot-melt pressure-sensitive adhesive

The invention relates to the field of adhesives, and particularly discloses a hot-melt pressure-sensitive adhesive for a heat-resistant high-viscosity woven cloth adhesive tape and a preparation method of the hot-melt pressure-sensitive adhesive. The heat-resistant high-viscosity hot-melt pressure-sensitive adhesive for the woven cloth adhesive tape comprises the following raw materials in parts by weight: 20-35 parts of a main polymer, 40-50 parts of tackifying resin, 15-30 parts of medium molecular weight polyisobutene and 0.3-1 part of an antioxidant, the main polymer is a mixture of a styrene-ethylene-butylene-styrene block copolymer and a styrene-butadiene-styrene triblock copolymer, the tackifying resin is a mixture of C5 petroleum resin and resina liquidamberis, and the number-average molecular weight of the medium molecular weight polyisobutene is 35000-45000. According to the hot-melt pressure-sensitive adhesive for the heat-resistant high-viscosity woven cloth adhesive tape, the medium-molecular-wei