Sol-Gel

Sol-Gel

The sol-gel technology is a highly versatile synthesis and chemical deposition technique for the production of ceramic and glass materials. TEKNIKER does not only use this technique for the synthesis of nanoparticles but also for the inorganic encapsulation of active materials and, primarily, for the development of multifunctional surfaces using deposition of coatings.

The sol-gel process involves the transition of a system from a liquid phase (sol) to a solid phase (gel) via the chemical reactions of hydrolysis and condensation of the metal precursors. Using this technology ceramic materials based on inorganic oxides (SiO2, TiO2, ZrO2, Al2O3, etc.) are obtained.

Transparent multifunctional coatings

In TEKNIKER this technology is mainly used for developing transparent multifunctional coatings. The deposition techniques available are dip-coating and spray-coating, which can coat surfaces with any dimensional geometry from 1cm to 1m.

Thus, TEKNIKER has extensive experience in sol-gel coatings on glass, metallic and polymeric substrates and even on powdery materials such as pigments.

Some of the most developed functionalities include self-cleaning coatings (superhydrophobic or superhydrophilic), anti-reflective, anti-scratch, anti-ice, antibacterial, photocatalytic, etc.

Synthesis of nanoparticles of inorganic oxides

Another application of sol-gel technology is the synthesis of nanoparticles of inorganic oxides such as SiO2 o TiO2. Controlling the main variables of the process produces nanoparticles of the desired size, porosity and crystallinity, being considered an iterative process for the synthesis of these.

Inorganic encapsulation

Lastly, is inorganic encapsulation using sol-gel technology of active compounds such as phase change materials (PCM), widely used in energy applications in construction (thermal comfort). These SiO2 capsules are primarily known for their excellent mechanical properties and the durability of these, compared to organic capsules.

Related contents

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    The sol-gel technology is a highly versatile synthesis and chemical deposition technique for the production of ceramic and glass materials. TEKNIKER does not only use this technique for the synthesis of nanoparticles but also for the inorganic encapsulation of active materials and, primarily, for the development of multifunctional surfaces using deposition of coatings.

    [fase_1] => [fase_2] => [fase_3] => [fase_4] => [texto_2] =>

    The sol-gel process involves the transition of a system from a liquid phase (sol) to a solid phase (gel) via the chemical reactions of hydrolysis and condensation of the metal precursors. Using this technology ceramic materials based on inorganic oxides (SiO2, TiO2, ZrO2, Al2O3, etc.) are obtained.

    Transparent multifunctional coatings

    In TEKNIKER this technology is mainly used for developing transparent multifunctional coatings. The deposition techniques available are dip-coating and spray-coating, which can coat surfaces with any dimensional geometry from 1cm to 1m.

    Thus, TEKNIKER has extensive experience in sol-gel coatings on glass, metallic and polymeric substrates and even on powdery materials such as pigments.

    Some of the most developed functionalities include self-cleaning coatings (superhydrophobic or superhydrophilic), anti-reflective, anti-scratch, anti-ice, antibacterial, photocatalytic, etc.

    Synthesis of nanoparticles of inorganic oxides

    Another application of sol-gel technology is the synthesis of nanoparticles of inorganic oxides such as SiO2 o TiO2. Controlling the main variables of the process produces nanoparticles of the desired size, porosity and crystallinity, being considered an iterative process for the synthesis of these.

    Inorganic encapsulation

    Lastly, is inorganic encapsulation using sol-gel technology of active compounds such as phase change materials (PCM), widely used in energy applications in construction (thermal comfort). These SiO2 capsules are primarily known for their excellent mechanical properties and the durability of these, compared to organic capsules.

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    CHARACTERISTICS OF THE EQUIPMENT

    • Immersion/extraction speed 1-1500mm/min.
    • Sample height 25-1000mm
    • Sample width 5-600mm
    • Maximum weight 2.5kg

    EXPERTISE

    • Deposition of sol-gel coatings onto any geometry
    • Deposition of polymeric coatings onto any geometry
    • Any type of material (glass, metal, plastic, etc.)
    ) [1] => Array ( [id] => 31 [titulo] => Spray-Coater [imagen] => Spray_Coater.JPG [texto] =>

    CHARACTERISTICS OF THE EQUIPMENT

    • Flat geometries
    • Pulverised pressure
    • Unlimited flow à Wide variety of nozzles
    • Speed < 1500 mm/s, acceleration2

    EXPERTISE

    • Deposition of sol-gel coatings onto any geometry
    • Deposition of polymeric coatings onto any geometry
    • Any type of material (glass, metal, plastic, etc.)
    ) [2] => Array ( [id] => 53 [titulo] => UV/Vis/NIR Lambda 950 Spectrophotometer [imagen] => Espectrofotometro_UV_Vis_NIR_Lambda_950_Perkin_Elmer.jpg [texto] =>

    CHARACTERISTICS OF THE EQUIPMENT

    • 150mm integrating sphere for measuring total and diffuse transmittance and reflectance
    • Range of measurement λ=3200-190 nm
    • Liquid, solid or coating samples

    EXPERTISE

    • Characterisation of optical properties of multifunctional coatings developed by Sol-Gel or PVD
    • Analysis of dispersions and their stability over time
    • Multivariate analysis of spectroscopic data for food products (cider, milk, vegetables, fruits, etc.)
    ) [3] => Array ( [id] => 54 [titulo] => FT/IR-4700LE Fourier Transform Infrared Spectroscopy [imagen] => Espectrometro_Infrarrojo_Transformada_de_Fourier_FT_IR.JPG [texto] =>

    CHARACTERISTICS OF THE EQUIPMENT

    • Pike IntegratIR MID-IR integrating sphere with DTGS CsI detector
    • Range of measurement λ=7800-350 cm-1
    • KBr beamsplitter

    EXPERTISE

    • Determination of solar absorbency and thermal emissivity of multifunctional coatings developed by Sol-Gel or PVD
    • Analysis of solid and liquid materials of an organic and inorganic nature through the study of the band spectra of functional groups
    ) [4] => Array ( [id] => 55 [titulo] => Autosorb iQ Surface Analyser [imagen] => Analizador_de_Superficies_Autosorb_IQ__Quantachrome.jpg [texto] =>

    CHARACTERISTICS OF THE EQUIPMENT

    • Determination of the pore type of microporous (
    • Determination of the BET surface area, pore volume and pore size

    EXPERTISE

    • Synthesis of nanoparticles of a controlled size and surface area
    • Development of porous substrates for catalysis, selective removal of contaminants by photocatalysis, etc.
    ) [5] => Array ( [id] => 56 [titulo] => Zetasizer Dynamic Light Scattering (DLS) Equipment [imagen] => Equipo_Dynamic_Light_Scattering_DLS__Zetasizer_Malvern.JPG [texto] =>

    CHARACTERISTICS OF THE EQUIPMENT

    • Determination of the particle size and emulsion 1-1000nm
    • Study of the stability of the dispersion or emulsion by determining the Z potential

    EXPERTISE

    • Synthesis of nanoparticles of a controlled size using Sol-Gel
    • Synthesis of nanoparticles of a controlled size using microemulsion
    • Study of the stability and durability of the dispersion and microemulsion over time
    ) [6] => Array ( [id] => 57 [titulo] => Mastersizer 2000 [imagen] => Mastersizer_2000_Malvern.jpg [texto] =>

    CHARACTERISTICS OF THE EQUIPMENT

    • The measuring principle is laser diffraction, via two different sources, the red light which is 632.8 nm and the blue light which is 470nm
    • Range of measurement: 0.02 um to 2000 um

    EXPERTISE

    • Measurement of particle size of the emulsions and dispersions in various media
    • Measurement of the size distribution for both the dispersions and emulsions
    • Size distribution in volume, intensity and number
    • Information on the stability of the dispersions or emulsions realised
    ) ) )

Industrial sectors

Aeronautics and space

Automotive

Renewable energy

Infrastructures

Machine tools and manufacturing