摘要:
A colloidal suspension of tungsten-doped SnO 2 particles is provided. It also pertains to the method for preparing such colloidal suspension and to its uses,especially in the manufacture of an antistatic coating for an optical article,such as an ophthalmic lens.
摘要:
A method of forming a sealed device comprising providing a first substrate having a first surface, providing a second substrate adjacent the first substrate, and forming a weld between an interface of the first substrate and the adjacent second substrate, wherein the weld is characterized by ((σ tensile stress location )/(σ interface laser weld )) interface laser weld > 10 MPa or > 1 MPa where σ tensile stress location is the stress present in the first substrate and σ interface laser weld is the stress present at the interface. This method may be used to manufacture a variety of different sealed packages.
摘要:
Cuprous stannate (Cu 2 SnO 3 .xH 2 0) wherein x is 0, 1, 2 or 3 has been found to act effectively as a smoke suppressant, flame retardant, a thermal stabiliser; and particularly against degradation of polymer mechanical properties. It also assists in heat radiation loss from a composition. Use with organic polymers has shown the above effects to a level comparable with existing materials currently used for such purposes, none of which have as broad a spectrum of action as thermal stabilising agents for organic polymers. Cuprous stannate is claimed for its uses as a thermal stabiliser and in preferably in conjunction with plastics (organic polymers). Additionally it is not itself combustible and so does not contribute to heat generation in any high temperature combustion.
摘要:
A process for preparing a mesoporous material, e.g., transition metal oxide, sulfide, selenide or telluride, Lanthanide metal oxide, sulfide, selenide or telluride, a post-transition metal oxide, sulfide, selenide or telluride, and metalloid oxide, sulfide, selenide or telluride. The process comprises providing a micellar solution comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the micellar solution at a temperature and for a period of time sufficient to form the mesoporous material. A mesoporous material prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous materials.
摘要:
A process for preparing a mesoporous material, e.g., transition metal oxide, sulfide, selenide or telluride, Lanthanide metal oxide, sulfide, selenide or telluride, a post-transition metal oxide, sulfide, selenide or telluride, and metalloid oxide, sulfide, selenide or telluride. The process comprises providing a micellar solution comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the micellar solution at a temperature and for a period of time sufficient to form the mesoporous material. A mesoporous material prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous materials. The method comprises providing a micellar solution comprising a metal precursor, an interface modifier, a hydrotropic or lyotropic ion precursor, and a surfactant; and heating the micellar solution at a temperature and for a period of time sufficient to control nano-sized wall crystallinity and mesoporosity in the mesoporous materials. Mesoporous materials and a method of tuning structural properties of mesoporous materials.