1 results about "Ethylidenediphosphonic acid" patented technology

This invention discloses a method for preparing Ga / Se dual-ion co-modified attapulgite and a corrosion-inhibiting multifunctional silk fibroin-based hydrogel coating. The preparation process is as follows: Attapulgite is activated and surface-modified with a hydrochloric acid solution of a certain concentration; gallium nitrate solution is added and the temperature is controlled; the reaction is carried out for a period of time to obtain Ga / Se dual-ion modified attapulgite; then, it is added to a silk fibroin aqueous solution of a certain mass fraction; subsequently, (1-hydroxyethylidene) bisphosphonic acid and glycine are added, mixed evenly, and coated onto a pretreated substrate, then dried at 37°C to form a film. Compared with the prior art, the hydrogel coating prepared by this invention has good corrosion inhibition, antibacterial, and osteogenic properties, and can be widely used in the surface protection of biomedical magnesium alloys and to impart multifunctionality to them.