摘要:
The present invention provides an article with a silica-based film, wherein the film does not separate from a substrate after the Taber abrasion test prescribed in Japanese Industrial Standards (JIS) R 3212 although the thickness of the film formed by a sol-gel process exceeds 300 nm. This film can be formed by an improved sol-gel process, that is, a sol-gel process by using a coating solution wherein silicon alkoxide has a concentration of more than 3 mass % and less than 9 mass % in terms of a SiO2 concentration, the molality of protons is 0.001 to 0.2 mol/kg, and the number of moles of the water is at least four times and at most ten times the total number of moles of the silicon atoms, and by heating a substrate at the temperature above 100° C.
摘要:
An infrared ray-cutting glass according to which the capability of an IR-cutting component can be sufficiently maintained while securing sufficient hardness. The IR-cutting glass 100 is comprised of a glass substrate 20, and an IR-cutting film 10 containing ITO fine particles 12 as an infrared ray-cutting component. The IR-cutting film 10 is formed, using an infrared ray-cutting component not containing a fluorine component, on a surface of the glass substrate 20 by a sol-gel method carried out at a low temperature of less than 350° C. The IR-cutting glass 100 having the IR-cutting glass 10 has a haze of not more than 7% after a wear resistance test carried out on the surface on which the IR-cutting film 10 is formed.
摘要:
An article with a silica-based film that contains an organic material and has excellent mechanical strength. This article includes a substrate and an organic-inorganic composite film that is formed on the surface of the substrate. The organic-inorganic composite film contains silica as its main component. A value of (0.19A+0.03) or lower (A denotes the film thickness [μm]) is obtained through X-ray diffraction analysis on the organic-inorganic composite film, with the X-ray incident angle being fixed at 1° with respect to the surface of the organic-inorganic composite film, when the intensity of a peak at a diffraction angle of 3° to 10° is standardized using the intensity of a halo pattern peak at a diffraction angle of 20° to 30°. A value of 0.25 or lower is obtained through Fourier transform infrared spectroscopy analysis on the organic-inorganic composite film, when the intensity of a peak at around 950 cm−1 based on a Si—OH group is standardized using the intensity of a peak at around 1100 cm−1 based on a Si—O—Si bond.
摘要:
An article with a silica-based film that contains an organic material and has excellent mechanical strength. This article includes a substrate and an organic-inorganic composite film that is formed on the surface of the substrate. The organic-inorganic composite film contains silica as its main component. A value of (0.19A+0.03) or lower (A denotes the film thickness [μm]) is obtained through X-ray diffraction analysis on the organic-inorganic composite film, with the X-ray incident angle being fixed at 1° with respect to the surface of the organic-inorganic composite film, when the intensity of a peak at a diffraction angle of 3° to 10° is standardized using the intensity of a halo pattern peak at a diffraction angle of 20° to 30°. A value of 0.25 or lower is obtained through Fourier transform infrared spectroscopy analysis on the organic-inorganic composite film, when the intensity of a peak at around 950 cm−1 based on a Si—OH group is standardized using the intensity of a peak at around 1100 cm−1 based on a Si—O—Si bond.
摘要:
An article with an organic-inorganic composite film that contains silica as its main component and does not separate from the substrate after the Taber abrasion test prescribed in Japanese Industrial Standards (JIS) R 3212. This composite film is formed of a coating solution containing a hydrophilic organic polymer by a sol-gel process. In this solution, for example, the amount of silicon alkoxide exceeds 3 mass % in terms of a SiO2 concentration. When the coating solution contains a phosphorus source, the molality of protons is 0.0001 to 0.2 mol/kg while the number of moles of water is at least four times the total number of moles of silicon atoms contained in the silicon alkoxide. This sol-gel process allows a film with excellent mechanical strength to be obtained even when the substrate is not heated up to a temperature exceeding 400° C. and the film thickness exceeds 250 nm.
摘要:
An article with an organic-inorganic composite film that contains silica as its main component and does not separate from the substrate after the Taber abrasion test prescribed in Japanese Industrial Standards (JIS) R 3212. This composite film is formed of a coating solution containing a hydrophilic organic polymer by a sol-gel process. In this solution, for example, the amount of silicon alkoxide exceeds 3 mass % in terms of a SiO2 concentration. When the coating solution contains a phosphorus source, the molality of protons is 0.0001 to 0.2 mol/kg while the number of moles of water is at least four times the total number of moles of silicon atoms contained in the silicon alkoxide. This sol-gel process allows a film with excellent mechanical strength to be obtained even when the substrate is not heated up to a temperature exceeding 400° C. and the film thickness exceeds 250 nm.
摘要:
The present invention allows abrasion resistance in silica-based films containing an organic material to be improved. Such a silica-based film contains silica as an inorganic oxide to be its main component, and a poorly water-soluble polymer as an organic material. Example of the poorly water-soluble polymer include a polymer having a solubility of 1.0 g or less with respect to 100 g of water at 25° C., such as polycaprolactone polyol, bisphenol A polyol and glycerol polyol. The silica-based film exhibits good abrasion resistance not only in the Taber abrasion test, but also in the steel wool abrasion test.
摘要:
The present invention allows abrasion resistance in silica-based films containing an organic material to be improved. Such a silica-based film contains silica as an inorganic oxide to be its main component, and a poorly water-soluble polymer as an organic material. Example of the poorly water-soluble polymer include a polymer having a solubility of 1.0 g or less with respect to 100 g of water at 25° C., such as polycaprolactone polyol, bisphenol A polyol and glycerol polyol. The silica-based film exhibits good abrasion resistance not only in the Taber abrasion test, but also in the steel wool abrasion test.
摘要:
The optical device having a predetermined surface profile of the invention is fabricated by forming a multi-layered dielectric film on the surface of a solid composition layer having a glass transition temperature of not lower than 100° C. The solid composition layer is formed by molding and curing a polymerizable organic group-having fluid composition. The curing may be effected through photopolymerization or thermal polymerization of the polymerizable organic group in the composition, and a predetermined surface profile is transferred onto the composition layer from the mold used. The cured composition is released from the mold, and this is coated with a multi-layered dielectric film.