2 results about "Corrosion engineering" patented technology

The application belongs to the field of organic chemistry, material science and corrosion engineering, and discloses synthesis and application of a corrosion inhibitor based on rhodamine 6G. The fluorescent corrosion inhibitor LDS is obtained by synthesizing rhodamine 6G and hydrazine hydrate through a Schiff base reaction and salicylaldehyde. The corrosion inhibitor LDS not only has an inhibiting effect on carbon steel, but also can realize detection functions of corrosion iron ions and environment pH through a fluorescent signal, and further early warning of metal corrosion.

This invention discloses a waterproofing treatment method for color steel roof panels, belonging to the field of building waterproofing and anti-corrosion engineering technology. It addresses the problems of loosening of seams, failure of joint sealing, and rust leakage caused by negative wind pressure and temperature deformation of metal roof panels. The method includes the following steps: S1, base layer pretreatment; S2, nail hole sealing treatment; S3, joint reinforcement treatment; S4, overall waterproof coating application; S5, anti-corrosion surface layer application. In this invention, the base layer pretreatment process of "two-stage fine grinding + rust-converting agent treatment" thoroughly removes floating rust, oxides, and stains. The passivation layer formed by the rust-converting agent can convert active rust into a stable substance, inhibiting the spread of rust from the source. Simultaneously, the passivation layer has good compatibility with the acrylic high-elasticity waterproof coating, significantly improving the adhesion strength between the coating and the base layer, preventing coating blistering and peeling, and solving the leakage risks caused by incomplete base layer treatment in existing methods.