Autor según el artículo: Donoso R, Reina JA, Giamberini M, De La Flor S, Ferrando F, Cerruti P.

Departamento: Enginyeria Mecànica Enginyeria Química

e-ISSN: 2073-4360

Autor/es de la URV: De la Flor Lopez, Silvia / Ferrando Piera, Francesc / Giamberini, Marta / Reina Lozano, José Antonio

Palabras clave: Thermal properties characterization Polymerization rate Methacrylate monomers Mechanical properties characterization Cosmetics polymerization rate methacrylate monomers mechanical properties characterization cosmetics

Resumen: Mixtures of methacrylic polymers are the most common materials for making composites to be used as resins for dental and cosmetic applications. Some of these mixtures are composed by poly(ethyl methacrylate) (PEMA) and poly(methyl methacrylate) (PMMA), which constitute a solid component to be mixed with a liquid component made out of methacrylate monomers. The reaction between the thermal initiator benzoyl peroxyde (BPO) present in the solid component and the activator of the polymerization process, N,N-dimethyl-p-toluidine (DMT) present in the liquid component, gives rise to thermoset materials. In the present study, different liquid formulations composed by a mixture of two methacrylic monomers, ethyl methacrylate (EMA) and triethylene glycol dimethacrylate (TEGDMA) for cosmetic applications, were prepared and characterized, using a commercial powder (POW) composed by PEMA and PMMA. With the aim of improving workability during final application of the material, it was necessary to slow down the polymerization rate of liquid formulations. Their thermal behavior was investigated by differential scanning calorimetric (DSC) in order to check the polymerization rate. Thermal stability of final materials was determined by thermogravimetric analysis (TGA). Dynamic mechanical thermal analysis (DMTA), microindentation hardness and impact tests were performed on final materials, to assess their performance with respect to standard formulation. The combination of thermal and mechanical properties allows choosing which formulations could be suitable for use in cosmetics.

Áreas temáticas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 20734360

Direcció de correo del autor: silvia.delaflor@urv.cat f.ferrando@urv.cat joseantonio.reina@urv.cat marta.giamberini@urv.cat

Identificador del autor: 0000-0002-6851-1371 0000-0003-4450-2734 0000-0002-9245-4135 0000-0001-8278-3552

Fecha de alta del registro: 2023-02-18

Volumen de revista: 10

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/2073-4360/10/3/256

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Polymers. 10 (3):

Referencia de l'ítem segons les normes APA: Donoso R, Reina JA, Giamberini M, De La Flor S, Ferrando F, Cerruti P. (2018). Thermal and mechanical characterization of EMA-TEGDMA mixtures for cosmetic applications. Polymers, 10(3), -. DOI: 10.3390/polym10030256

DOI del artículo: 10.3390/polym10030256

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2018

Tipo de publicación: Journal Publications