Epoxy-silica polymers as restoration materials. Part II

Cardiano, Paola; Mineo, Placido; Sergi, Santo; Ponterio, Rosina Celeste; Triscari, M.; Piraino, Pasquale

doi:10.1016/s0032-3861(03)00432-4

Cited by 35 publications

(13 citation statements)

References 13 publications

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“…Para evitar este deterioro, se han desarrollado un gran número de compuestos cuya finalidad es recubrir la fachada y protegerla de dichos agentes nocivos (3,(8)(9)(10)(11)(12).…”

Section: Introductionunclassified

Tratamientos de protección superficial de materiales de construcción por nuevos materiales híbridos organo-inorgánicos multifuncionales

Oteo¹,

Elvira²,

Alonso³

et al. 2006

Bol. Soc. Esp. Ceram. Vidr.

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En este trabajo se presentan los resultados de las investigaciones llevadas a cabo para evaluar el comportamiento de un material híbrido orgánico-inorgánico (HOI) como recubrimiento protector de distintos materiales de construcción. La caracterización mineralógica, estructural y textural de los materiales de construcción estudiados (granito, mármol y arenisca) se llevó a cabo mediante las técnicas: difracción de rayos X (DRX), microscopía electrónica de barrido (MEB), reflectancia total atenuada (ATR) y porosimetría de mercurio. Por otro lado, la caracterización del recubrimiento antivandálico se llevó a cabo mediante ATR y MEB, evaluando su capacidad protectora contra pinturas realizadas por aerógrafo o rotulador, según la mayor o menor facilidad con que se elimina la pintura por limpieza con gamuza. La estabilidad del recubrimiento en el material inorgánico se estudió mediante ensayos acelerados de resistencia a la lluvia y, en el caso del mármol, a la radiación UV. La variación del color experimentada por la superficie después de ser recubierta se estudió, en todos los casos, por colorimetría. Palabras clave: antivandálico, híbrido, recubrimiento, envejecimiento. Surface protection treatments of building materials by new organic-inorganic hybrid multifuncional materialsThe behavior of an organic-inorganic hybrid material (HOI) as protective coating of different building materials has been evaluated in this work. The mineralogical, structural and textural characterization of the inorganic building materials (granite, marble and sandstone) was carried out by: x-ray diffraction (XRD), scanning electron microscopy (SEM), attenuated total reflectance (ATR) and mercury porosimetry. On the other hand, the protective coating was characterized by ATR and SEM, evaluating its protective capacity against paintings made by aerograph or labeller, according to the greater or smaller facility whereupon eliminates the painting by means of cleaning with a cloth. The stability of the coating on the inorganic materials was studied by accelerated tests of rain and UV radiation. Color variation after coating was studied, in all the cases, by colorimetry.

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“…Para evitar este deterioro, se han desarrollado un gran número de compuestos cuya finalidad es recubrir la fachada y protegerla de dichos agentes nocivos (3,(8)(9)(10)(11)(12).…”

Section: Introductionunclassified

Tratamientos de protección superficial de materiales de construcción por nuevos materiales híbridos organo-inorgánicos multifuncionales

Oteo¹,

Elvira²,

Alonso³

et al. 2006

Bol. Soc. Esp. Ceram. Vidr.

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“…Poly(bisphenolA-co-epichlorohydrin), glycidyl endcapped (DGEBA) (Average M n 5 348 corresponding to an average degree of polymerization of 0.03; epoxy equivalent 5 174), (3-glycidyloxypropyl)trimethoxysilane (GLYTS), 3-aminopropyl-methyldiethoxysilane (AMTS), glycidyl-2,2, 3,3,4,4,5,5,6,6,7,7,8,8,9, 9-hexadecafluorononyl ether (GLY16F), and 3,3,3-trifluoropropyl-trimethoxysilane (TFP-TMS) were purchased from SigmaAldrich and used as received. 13 C NMR spectra have been performed in CDCl 3 by means of a Bruker AMX R-300 spectrometer operating at 300.13 and 75.47 MHz, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…As preliminary measurements on glass slides showed that hydrophobic behavior of 1-2 and 3-4 is very similar, we selected two representative blends, namely 1 and 3 to perform further investigations. The modification of the surface properties of 1 and 3, following the addition of two fluorine-containing comonomers, namely the long-chained fluorinated epoxy glycidyl-2, 2, 3,3,4,4,5,5,6,6,7,7,8,8,9,9-hexadecafluorononyl ether (GLY16F) and the fluorinated silane 3,3,3-trifluoropropyl-trimethoxysilane (TFP-TMS) was also investigated. The glasses coated with 1 mixture, without any fluorine additive, show remarkable hydrophobic properties being featured by very high values for the advancing (y adv 5 1108) and receding (y rec 5 908) contact angles.…”

Section: Hydrophobic Propertiesmentioning

confidence: 99%

“…The extent of epoxy cleavage during the hardening reaction and the hydrolysis of the Si(OR) x groups have been followed by 13 C NMR spectroscopy in solution; the solids have been characterized by means of Raman, FTIR, and TG-DTA studies. The hydrophobic properties of the resulting solids have been investigated by contact angle measurements on coated glass slides, and have been tailored by adding to the above mixtures two fluorine-containing comonomers, namely glycidyl-2,2, 3,3,4,4,5,5,6,6,7,7,8,8,9,3,. Preliminary tests to evaluate the efficacy of the above products, as construction materials coatings, have been carried out by means of mercury intrusion porosimetry and water absorption by the wicking method.…”

mentioning

confidence: 99%

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Hydrophobic properties of new epoxy‐silica hybrids

Cardiano

2008

J of Applied Polymer Sci

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New products to be employed as coatings for construction materials have been synthesized. Room temperature blending of poly(bisphenolA-co-epichlorohydrin), glycidyl endcapped (DGEBA) and 3-aminopropyl-methyldiethoxysilane (AMTS), as well as of DGEBA, (3-glycidyloxypropyl)trimethoxysilane (GLYTS) and AMTS, in CHCl 3 , employing different stoichiometric ratios, leads to transparent and crack free solids. The extent of epoxy cleavage during the hardening reaction and the hydrolysis of the Si(OR) x groups have been followed by 13 C NMR spectroscopy in solution; the solids have been characterized by means of Raman, FTIR, and TG-DTA studies. The hydrophobic properties of the resulting solids have been investigated by contact angle measurements on coated glass slides, and have been tailored by adding to the above mixtures two fluorine-containing comonomers, namely glycidyl-2,2, 3,3,4,4,5,5,6,6,7,7,8,8,9,3,. Preliminary tests to evaluate the efficacy of the above products, as construction materials coatings, have been carried out by means of mercury intrusion porosimetry and water absorption by the wicking method.

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“…In addition to metal and silicon alkoxides, epoxy compounds and alkylalkoxy compounds functionalized with epoxy groups have also been widely utilized as precursors for synthesizing organicinorganic hybrids [7][8][9]. These matrices have been successfully used in fabricating corrosion-resistant and protective coatings [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Sol-gel synthesis and fluorescence properties of hybrid nanocomposite materials doped with the Nile Red dye

et al. 2008

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The hybrid organic-inorganic materials with optical properties are synthesized in the form of gels and thin-layer coatings by the sol-gel method. The fluorescence of the materials synthesized is investigated as a function of the Nile Red concentration and the composition of the precursors forming the hybrid sol-gel matrices. It is demonstrated that the materials synthesized hold much promise for use in the fabrication of optical gas sensors.

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Epoxy-silica polymers as restoration materials. Part II

Cited by 35 publications

References 13 publications

Tratamientos de protección superficial de materiales de construcción por nuevos materiales híbridos organo-inorgánicos multifuncionales

Tratamientos de protección superficial de materiales de construcción por nuevos materiales híbridos organo-inorgánicos multifuncionales

Hydrophobic properties of new epoxy‐silica hybrids

Sol-gel synthesis and fluorescence properties of hybrid nanocomposite materials doped with the Nile Red dye

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