Coating adhesive for anti-puncture tire and preparation method thereof

The invention relates to a coating adhesive for an anti-puncture tire. The coating adhesive comprises a spraying adhesive and a bottom coating adhesive, the bottom coating adhesive is prepared by adding spraying glue into a vulcanization system, preparation raw materials of the spraying adhesive comprise the following components in percentage by mass: 15%-30% of thermoplastic elastomer, 25%-40% ofsynthetic rubber, 1%-2% of homogeneous dispersant, 10%-30% of high-flash-point mixed oil, 1%-2% of high-temperature-resistant anti-aging agent, 0.5%-1% of antioxidant, 20%-30% of tackifying resin and0.7%-1% of filler. The coating adhesive disclosed by the invention is obtained by combining the bottom coating adhesive and the spraying adhesive, and after the coating adhesive is used, the adhesiveforce between the spraying adhesive and the inner layer of the tire is obviously enhanced; when the adhesive force of the tire is greater than the centrifugal force, the spraying glue does not curl and does not fall off, and t