2results about How to "Excellent physical shielding effect" patented technology

This invention belongs to the field of anti-corrosion coating technology and discloses a thin-layer high-barrier heavy-duty anti-corrosion coating and its preparation method. The coating comprises component A and component B, wherein component A is composed of fluorocarbon-polyurethane hybrid resin, glass flakes, cerium-doped carbon nitride, additives, and solvent, and component B is a curing agent and a diluent. The fluorocarbon-polyurethane hybrid resin is prepared by reacting fluorocarbon resin with a mixed isocyanate, which is a compound of aliphatic and aromatic isocyanates; the cerium-doped carbon nitride is obtained by calcining urea followed by secondary calcination with cerium ammonium nitrate. This invention, through resin hybrid design and synergistic use of functional fillers, achieves excellent acid and alkali corrosion resistance and long-term barrier effect under thin-layer conditions. The coating maintains surface integrity and stable adhesion even after immersion in corrosive media, and is easy to apply and low in cost, making it suitable for steel structure protection in harsh corrosive environments.

This invention belongs to the field of materials preparation and discloses a method for preparing plate-like zinc phosphate, comprising the following steps: (1) adding an inducing agent to a phosphoric acid solution; (2) adding the mixed solution from step (1) to a zinc oxide slurry, stirring the mixture at 60-90°C, and filtering and drying the reaction product after the reaction to obtain plate-like zinc phosphate. This invention directly controls the growth morphology of plate-like crystals through an aqueous synthesis reaction, eliminating the need for ultrafine grinding, reducing process flow and equipment investment, lowering energy consumption per unit product, and meeting the requirements of green manufacturing.