Preparation and Characterization of Nanostructured Films: Study of Hydrophobicity and Antibacterial Properties for Surface Protection

Barberio, M.; Veltri, S.; Sokullu, Esen; Xu, Fang; Gauthier, Marc A.; Antici, P.

doi:10.1002/9781119211662.ch12

Cited by 2 publications

(5 citation statements)

References 14 publications

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“…process of mixing of polymer and TiO can be obtained by stirring or sonication [82]. However, the low chemical affinity between organic polymers and inorganic particles makes the mechanical methods of dispersion insufficient, while a chemical approach is usually more [83].…”

Section: Preparation and Properties Of Nano-tio Hybridsmentioning

confidence: 99%

Section: Nano-tio 2 Hybrids On Stonementioning

confidence: 99%

“…option to prevent the bio-colonization of restored surfaces is of high importance and has gained attention due to the fact that products used for conservation purposes may serve themselves as nutrient and thus support the biological colonization of the restored surfaces [82]. this field, TiO 2 has been extensively used as biocide against various microorganisms (bacteria, fungi and due to its broad-spectrum antibiosis, its chemical stability, non-toxicity, high photo-reactivity, cheapness [77,82]. Treatments with nano-TiO 2 are able to induce inhibition in biological Although bioreceptivity of stone materials is highly variable and strongly depends on surface initial porosity and mineralogical characteristics, the positive effect has been observed on dissimilar lithotypes [76], while greater amounts of nano-powder have not improved the as biocidal agent.…”

Section: Nano-tio 2 Hybrids On Stonementioning

confidence: 99%

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Active Organic and Organic-Inorganic Hybrid Coatings and Thin Films

2020

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Section: Preparation and Properties Of Nano-tio Hybridsmentioning

confidence: 99%

Section: Nano-tio 2 Hybrids On Stonementioning

confidence: 99%

Section: Nano-tio 2 Hybrids On Stonementioning

confidence: 99%

See 1 more Smart Citation

Active Organic and Organic-Inorganic Hybrid Coatings and Thin Films

2020

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“…The process of mixing of polymer and TiO 2 can be obtained by stirring or sonication [82]. However, the low chemical affinity between organic polymers and inorganic particles makes the mechanical methods of dispersion insufficient, while a chemical approach is usually more effective [83].…”

Section: Preparation and Properties Of Nano-tio 2 Hybridsmentioning

confidence: 99%

“…The option to prevent the bio-colonization of restored surfaces is of high importance and has gained attention due to the fact that products used for conservation purposes may serve themselves as nutrient and thus support the biological colonization of the restored surfaces [82]. In this field, TiO 2 has been extensively used as biocide against various microorganisms (bacteria, fungi and viruses) due to its broad-spectrum antibiosis, its chemical stability, non-toxicity, high photo-reactivity, and cheapness [77,82]. Treatments with nano-TiO 2 hybrids are able to induce inhibition in biological growth.…”

Section: Nano-tio 2 Hybrids On Stonementioning

confidence: 99%

Novel Attribute of Organic–Inorganic Hybrid Coatings for Protection and Preservation of Materials (Stone and Wood) Belonging to Cultural Heritage

Frigione

Lettieri

2018

Coatings

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In order to protect a material belonging to Cultural Heritage (i.e., stone, wood) from weathering, and in turn to preserve its beauty and historical value for the future generations, the contact with external harmful agents, particularly water, must be avoided, or at least limited. This task can be successfully obtained with the use of a protective organic coating. The use of nano-metric reinforcing agents in conventional polymeric coatings demonstrated to be a successful route in achieving better protective performance of the films and improved physical properties, even in extreme environments. The present paper would, therefore, review the more recent findings in this field. Generally speaking, when a hydrophobic product is applied on its surface, the stone material will absorb less water and consequently, less substances which may be harmful to it. An efficient organic coating should also supply wear and abrasion resistance, resistance to aggressive chemicals, excellent bond to the substrate; finally, it should be also able to guarantee vapor exchange between the environment and the material interior, i.e., the material should keep the same water vapor permeability as if it was un-protected. To regard to the conservation of wood artifacts, protective treatments for wood will preserve the material from environmental agents and biological attack. Hence, potential advantages of hybrid (organic–inorganic) nano-composite coatings for stone/wood have been found to be: Enhanced mechanical properties in comparison to the pure polymeric matrix, due to the reinforcing effect of the nano-filler; superior barrier properties (the presence of the nano-filler hinders the ingress of water and/or potentially harmful chemicals); optical clarity and transparency. It has been found that the efficacy of a nano-filled coating strongly depends on the effectiveness of the method used to uniformly disperse the nano-filler in the polymeric matrix. Furthermore, the presence of nano-particles should not impair the viscosity of the organic matrix, in order to employ the conventional techniques of application for coatings.

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Preparation and Characterization of Nanostructured Films: Study of Hydrophobicity and Antibacterial Properties for Surface Protection

Cited by 2 publications

References 14 publications

Active Organic and Organic-Inorganic Hybrid Coatings and Thin Films

Active Organic and Organic-Inorganic Hybrid Coatings and Thin Films

Novel Attribute of Organic–Inorganic Hybrid Coatings for Protection and Preservation of Materials (Stone and Wood) Belonging to Cultural Heritage

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