2results about How to "Improved wet adhesion" patented technology

The invention belongs to the technical field of water conservancy and transportation engineering maintenance, and particularly relates to a ship lock concrete surface repairing coating in a seawater soaking environment and a construction method of the ship lock concrete surface repairing coating. Comprising a permeation anchoring bottom coating, a stress buffering middle coating and a super-weather-resistant protective surface coating which are sequentially arranged from inside to outside, and the permeation anchoring bottom coating is a bi-component epoxy-biomineralization composite system. The construction method of the ship lock concrete surface repairing coating comprises the steps that a base plane is diagnosed and cleaned; constructing a negative pressure microenvironment; carrying out in-situ vacuum dehydration and exclusion; negative-pressure prime coat leading-in is carried out; performing controlled ventilation and re-pressing permeation; and constructing a multi-layer system. According to the method, capillary water wedge resistance can be overcome under the condition that a dry base plane does not need to be stopped for a long time, deep penetration and high-strength anchoring of a repairing material to concrete microcracks are achieved, and the chloride ion penetration resistance and durability of a ship lock structure are greatly improved.

This invention relates to a high-solids protective coating suitable for stainless steel and magnesium alloys, resistant to 800℃, comprising component A and component B; wherein component A comprises, by weight parts: methylphenyl silicone resin, 30-40 parts; E51 epoxy resin, 15-20 parts; high-temperature pigment, 15-20 parts; nano-silica, 8-12 parts; modified phosphate, 10-15 parts; mica powder, 6-10 parts; additives, 2.5-3 parts; solvent, a mixture of xylene and n-butanol, 8- 10 parts; wherein component B includes the following components by mass: alicyclic amine curing agent, 45-60 parts; modified alicyclic amine curing agent, 20-30 parts; solvent, a mixture of xylene and n-butanol, 15-25 parts. The preparation method includes the following steps: step S1, preparing component A; step S2, preparing component B; step S3, mixing component A and component B according to a designed ratio, and finally coating and curing to form a film. The advantages of this invention are high adhesion, good corrosion resistance and high temperature resistance.