6 results about "Biocoating" patented technology

The application discloses a kind of biological coating with physical mechanical antibacterial and chemical antibacterial performance and preparation method thereof, it is related to biomaterial technical field.The biological coating of the application is composed of TC4 nanofiber network and nano copper deposited in nanofiber network, and the preparation method is: using polishing-washing-sweeping process pretreatment TC4 titanium alloy;It is placed in alkali solution and heated in water bath to activate, and the alloy after activation is repeated polishing, washing, sweeping step, to obtain the substrate to be sputtered;The substrate is magnetron sputtered, and nano copper is deposited on its surface;After depositing nano copper, the substrate is annealed in inert atmosphere and cooled, and the biological coating with physical mechanical antibacterial and chemical antibacterial performance is prepared.The synergistic effect of the biological coating composed of nano copper and nanofiber network can effectively kill staphylococcus aureus, escherichia coli and other pathogenic microorganisms, and can be applied to oral implant, metal implant biomaterial as functional coating.

Coated metal particles Coated metal particles 10 comprise a coating 14 derived from a molybdate solution that is reactive to the uncoated metal. Typically, the metal is aluminium or aluminium alloy.

The present invention relates to a process for preparing a coating lacquer comprising the following steps: a) providing a natural hydrocolloid and a solvent, the solvent comprising or consisting of water, b) introducing, under stirring, the natural hydrocolloid into the solvent to obtain a pre-hydrolysis solution, the natural hydrocolloid having a concentration ≥ 13% by weight of the total weight of the pre-hydrolysis solution, c) reaching a temperature comprised between 40°C and 57°C, d) introducing a hydrocolloid-specific hydrolyzing enzyme to obtain a coating lacquer, wherein the coating lacquer has a natural hydrocolloid concentration ≥ 13% by weight of the total weight of the coating lacquer.

This invention discloses a method for integrating and optimizing the arterial filtration function of a membrane oxygenator, relating to the field of membrane oxygenator technology. The method includes the following steps: setting performance target parameters for an integrated membrane oxygenator; using a dynamic tension control process to wind gas exchange membrane fibers around its periphery to construct a temperature-changing unit and an oxygenation unit; during the winding process in step S2, placing multi-layer filter screens at preset positions to construct multi-layer filter screens between the gas exchange membrane fiber layers; using a centrifugal potting process to inject encapsulation material into the end of the component, curing it in one step to form a sealed end that isolates the blood phase, gas phase, and water phase; introducing a biomimetic coating solution into the molded blood channel to construct a biocompatible coating on the substrate surface; performing performance tests on the finished product and comparing it with the performance target parameters in S1; adjusting the process parameters of at least one step from S2 to S5 based on deviation feedback until the product meets the standards; this invention ensures the consistency and compliance rate of product performance.

This invention relates to the field of marine anti-corrosion materials technology, specifically to an underwater curing anti-corrosion and anti-biological coating and its preparation method. The coating comprises an adhesive layer and an anti-biological layer. The adhesive layer, by weight, comprises the following raw materials: 50-60 parts epoxy resin, 1-3 parts modifier, 7-15 parts diluent, 4-10 parts amino silicone resin, 10-15 parts glass powder, 3-5 parts silica, 2.5-7.5 parts silane coupling agent, 0.2-0.5 parts defoamer, and 25-30 parts curing agent. The anti-corrosion coating prepared by this invention has the advantages of high bonding strength, easy maintenance, good corrosion resistance, long service life, and does not pollute the environment.

The utility model discloses a high strength wear -resisting cable for warship relates to warship equipment and marine engineering technical field. The high strength wear -resisting cable for warship, the stress dispersion effect of carbon nanotube, aramid twisted structure and graphene film of reinforcing layer combines, makes cable anti -impact performance promotion 40%, can bear 1000g instantaneous acceleration impact, solves the contradiction of rigid and easy to fold, soft and insufficient strength, the distributed optical fiber of intelligent detection layer and composite shielding layer can real -time monitoring temperature, strain and electromagnetic interference, realizes millimeter level fault location, the hollow glass bead repairing agent of repair layer releases and solidifies automatically when damage, completes micro -damage repair within 30 minutes, and the wear resistance restores above 80%, and the biological adhesion inhibition rate of cooperation biological protection layer 90%, makes maintenance cycle to extend 3 times above, compared with the passive maintenance mode of traditional cable, the fault risk of warship electrical system is reduced greatly, provides long -term safety guarantee for high -end warship equipment.