Hydrochloric acid-zinc oxide cross-linked modified bentonite waterproof blanket and preparation process thereof

The invention provides a hydrochloric acid-zinc oxide cross-linked modified bentonite waterproof blanket and a preparation process thereof, the waterproof blanket comprises a woven cloth layer, a bentonite layer and a geotechnical cloth layer from top to bottom, and the bentonite layer is formed by cross-linking and modifying hydrochloric acid modified bentonite and zinc oxide in a mass ratio of 20: 1. The preparation process comprises the following steps: S1, refining the sodium bentonite; s2, sodium bentonite hydrochloric acid modification; s3, hydrochloric acid modified sodium bentonite zinc oxide modification; and S4, locking the sodium bentonite modified in the step S3 between the woven cloth and the geotechnical cloth to obtain the hydrochloric acid-zinc oxide crosslinking modified bentonite waterproof blanket. The hydrochloric acid-zinc oxide cross-linked modified bentonite waterproof blanket provided by the invention can have good adsorption and isolation effects on copper ions, can effectively preven