2results about How to "Reduce water permeability" patented technology

The application aims at the problem of long process connection time, and provides a highland tunnel waterproof and drainage integrated construction device, relating to the technical field of tunnel waterproof and drainage, comprising: a mobile trolley arranged along the longitudinal direction of the tunnel and provided with a walking mechanism at the bottom; a waterproof operation unit arranged at the front of the mobile trolley and comprising a waterproof plate winch mechanism, a hot melt welding mechanical arm and a grouting assembly, the waterproof plate winch mechanism is used for unwinding the waterproof plate, the hot melt welding mechanical arm is used for fixing the waterproof plate on the surface of the initial support of the tunnel, and the grouting assembly is used for injecting filling slurry between the waterproof plate and the initial support; the application realizes waterproof and drainage integrated construction, so that the waterproof layer and the drainage groove are constructed synchronously and seamlessly overlapped, and the leakage hidden danger of the joint caused by the separation of traditional processes is completely eliminated.

This invention discloses an adhesive for repairing photovoltaic (PV) modules, a preparation method thereof, and a method for repairing PV modules. The adhesive includes: a first adhesive, or a first adhesive and a second adhesive; when both are present, the second adhesive and the first adhesive are stored independently. The first adhesive includes: a glue prepolymer formed by the reaction of multiple raw materials; the multiple raw materials include at least 100 parts of epoxy acrylate resin, 3-5 parts of an organometallic catalyst, and 8-15 parts of a compound containing diisocyanate groups. The second adhesive includes liquid silica gel and fumed silica dispersed in the liquid silica gel; the liquid silica gel includes α,ω-dihydroxypolydimethylsiloxane, methyl silicone oil, a crosslinking agent, a coupling agent, a diluent, and a catalyst. Through the synergistic effect of the components in the first adhesive, this adhesive possesses toughness, high strength, and low water permeability, ensuring the reliability of the adhesive in repairing PV modules.