"RICORR 20-21"RICORR - CORROSION INDICATOR COATINGS DESCRIPTIONThe project will develop a coating that visually indicates when the corrosion process begins in the coated metals. To do this, microcapsules or mesoporous silica particles with colorants inside will be synthesized and incorporated into the coating. The microcapsules will release the colorant when there is an increase in pH in the coating, indicating that the corrosion process is beginning. In the case of mesoporous silica, there will be a change in the color of the silica particles. In the corrosion process, anodic and cathodic zones are generated in the metal. In the anodic zones the oxidation of the metal takes place, while in the cathodic zones the reduction of the medium occurs, which is normally the reduction of O2 to produce OH- ions. Therefore in the cathodic zones an increase in pH takes place. This increase in pH will cause the decomposition of the microcapsules and the release of the colorant or the change of color of the mesoporous silica with the colorant inside. The colorant used preferentially will be phenolphthalein, which shows a color change from transparent to fuchsia in a pH range between 8.3 and 10. OBJECTIVESAs the main result of this project, it is expected to obtain coatings indicating corrosion on different metals. The objective of the project is to develop coatings that indicate the beginning of the process of the metals they coat. EXPLANATORY VIDEORESULTS OBTAINEDYear 2021: - Silica-based microcapsules have been developed with phenolphthalein as a corrosion indicator capable of detecting pH variations in the event of a corrosion phenomenon. Year 2021: Until now, the RICORR project has been developing pH indicator microcapsules / nanoparticles, incorporating a pH indicator inside the microcapsules / nanoparticles. The color change of a solution with pH indicator microcapsules has been observed when it is varied. It has been observed how at an acid pH the solution is white, due to the white color of the microcapsules. When the pH of the solution is increased, it acquires a pale pinkish color until at a more basic pH it acquires an intense pinkish coloration. Currently, work is continuing on obtaining microcapsules / nanoparticles, as well as their incorporation in coatings on different metals and in accelerated corrosion tests to test their behavior when the corrosion phenomenon occurs.
PUBLISHED NEWSgeneral broadcasthttps://actualidad.aidimme.es/2021/09/08/difusion-y-tran (...)https://actualidad.aidimme.es/2021/06/02/reuniones-para- (...)https://actualidad.aidimme.es/2020/07/16/aidimme-nuevos- (...)https://actualidad.aidimme.es/2020/12/30/especial-difusi (...)Technical dissemination, transferhttps://actualidad.aidimme.es/2021/03/03/aidimme-estudia (...)GRANT163.250 € Objective Sectors by CNAECNAE: 2561 - Treatment and coating of metals - Number of target companies: 102 (62 from the Valencian Community) Objective Sectors by ActivityMETAL INDUSTRY - Number of target companies: 91 (41 of the Valencian Community) TRACTOR COMPANIESThanks to its support and signature of the "declaration of participation" the project has been funded. GALVANIZADORA VALENCIANA, SLU ÁLVAREZ SCHAER, SLU INVERNADEROS Y TECNOLOGÍA, SAU COMPANIES DIFFUSION R&D PROJECTSThey want to know first-hand the evolution of the project, and its progress to the final result. COMPANIES TRANSFER KNOWLEDGEThey will implement technologies, develop strategies or look for new models based on the results. |