Publicación:
A MOLECULAR DYNAMICS SIMULATION OF POLYMERS' INTERACTIONS WITH KAOLINITE (010) SURFACES IN SALINE SOLUTIONS

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dc.creatorGONZALO RENATO ANDRÉS QUEZADA ESCALONA
dc.creatorJORGE HERNÁN SAAVEDRA MOLINA
dc.date2022
dc.date.accessioned2025-01-10T15:34:34Z
dc.date.available2025-01-10T15:34:34Z
dc.date.issued2022
dc.description.abstractTHE SEARCH FOR POLYMERS THAT MEET THE DEMANDS OF THE WATER RECOVERY PROCESS IN MINING IS A CONTINGENT CHALLENGE. BOTH THE PRESENCE OF CLAYS AND SALINE WATERS CAN IMPAIR WATER RECOVERY FROM TAILINGS WHEN CONVENTIONAL FLOCCULANTS ARE USED. IN THIS WORK, THE ADSORPTION OF POLYACRYLAMIDE (PAM), HYDROLYZED POLYACRYLAMIDE (HPAM), POLY(2-ACRYLAMIDO-2-METHYL-1-PROPANE SULFONIC ACID) (PAMPS), POLYACRYLIC ACID (PAA), POLYETHYLENE OXIDE (PEO), AND GUAR GUM (GUAR) ON A KAOLINITE SURFACE (010) WAS INVESTIGATED USING CLASSICAL MOLECULAR DYNAMICS. THE RESULTS SHOW THAT THE PRESENCE OF SODIUM CHLORIDE MODIFIES THE AFFINITIES OF THE POLYMERS WITH KAOLINITE (010). AT LOW SALT CONCEN-TRATIONS, THE PAM AND GUAR POLYMERS GENERALLY SHOW HIGHER ADSORPTION DUE TO THE FORMATION OF HYDROGEN BRIDGES. HOWEVER, THE HIGHEST ADSORPTIONS OCCUR IN SALT SOLUTIONS IN THE PRESENCE OF HPAM BY CATIONIC BRIDGING WITH SODIUM IONS AS A MEDIATOR. THIS HIGH AFFINITY OF HPAM IS NOT EFFICIENT FOR FLOCCULATION BECAUSE IT RE-DISPERSES THE PARTICLES, BUT IT IS PROMISING FOR THE DESIGN OF NEW ADDITIVES PRODUCED BY GRAFTING HPAM GROUPS ONTO ADVANCED POLYMERS.
dc.formatapplication/pdf
dc.identifier.doi10.3390/polym14061109
dc.identifier.issn2073-4360
dc.identifier.issn2073-4360
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/12663
dc.languagespa
dc.publisherPolymers
dc.relation.uri10.3390/polym14061109
dc.rightsPUBLICADA
dc.subjectsaline water
dc.subjectmolecular dynamic
dc.subjectkaolinite
dc.subjectflocculant adsorption
dc.subjectedge surface
dc.subjectSUPERFICIE DEL BORDE
dc.subjectDINÁMICA MOLECULAR
dc.subjectCAOLINITA
dc.subjectAGUA SALINA
dc.subjectADSORCION DE FLOCULANTES
dc.titleA MOLECULAR DYNAMICS SIMULATION OF POLYMERS' INTERACTIONS WITH KAOLINITE (010) SURFACES IN SALINE SOLUTIONS
dc.title.alternativeUNA SIMULACIÓN DE DINÁMICA MOLECULAR DE LAS INTERACCIONES DE LOS POLÍMEROS CON SUPERFICIES DE CAOLINITA (010) EN SOLUCIONES SALINAS
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN MADERAS
ubb.Otra ReparticionESCUELA DE INGENIERIA CIVIL QUIMICA
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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