1275results about "Inorganic adhesives" patented technology

The present invention is directed to a 3DP(TM) material system ad method, and an article made therefrom. The method of the present invention includes building cross-sectional portions of a three-dimensional article, and assembling the individual cross-sectional areas in a layer-wise fashion to form a final article. The individual cross-sectional areas are built by using an ink-jet printhead to deliver an aqueous fluid to a particulate material that includes plaster.

The invention provides geopolymeric compositions, which have controllable thickening and setting times for a wide range of temperatures and a large range of geopolymer slurry densities. The geopolymer slurry compositions have good mixability and pumpability, whilst the set materials develop good compressive strength and permeability. The invention discloses a method for preparing geopolymer for oilfield cementing applications. The geopolymeric compositions according to the invention comprises a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, lightweight or heavyweight fillers and a carrier fluid wherein the suspension of said geopolymeric composition is pumped in a well and allowed to set.

The present invention provides one kind of inorganic insulating adhesive for soft magnetic metal powder core. The inorganic insulating adhesive consists of SiO2, Al2O3, ZrO2, mica powder and water mixed together, and possesses both insulating and adhering functions. The present invention also provides the method of using the inorganic insulating adhesive in preparing soft magnetic metal powder core. Using the inorganic insulating adhesive can result in high magnetic performance of the magnetic metal powder core and enhanced mechanical strength, and the soft magnetic powder core without organic matter contained has no ageing and performance degradation caused by heat.

The invention relates to a bonding rubber material, especially provides a binder or a thermosetting molding rubber cement for bonding and reinforcement of door cores of a fireproof door an antitheft door and bonding and production of building and decoration materials, and aims to provide a composite rubber material, with low cost, good bonding strength and rapid surface dry, which can be cured at room temperature. The composite rubber material is characterized in that the composite rubber material is composed of a water-based A material and a polyurethane prepolymer-containing B material, the ratio (weight ratio) of the A material to the B material is 0.5-1:0.5-1, the A material comprises 30-70% of water and/or water glass and/or silica sol, 19.5-48% of organic modifiers, and 12-55% of additives, the B material comprises polyurethane prepolymers with a content of being more than 30%, 8-24% of -NCO group, and 0-30% of synergists, The synergists are one or combination of more than one selected from a polymerization inhibitor, a blocking agent, a water glass curing agent and a diluting agent. The composite rubber material is advantaged by good bonding strength, flame retardance, thermal insulation, low price and environmental protection.

The invention relates to a high viscosity solar cell front silver serum and a preparation method thereof. The composition and the weight ratio of the high viscosity solar cell front silver serum are that conductive silver powder accounts for 75-85 percent, glass glue accounts for 2-10 percent, organic carrier accounts for 5.5-20 percent, the particle size of the conductive silver powder is 0.2-2mum; the composition and the weight ratio of the glass glue are that Bi2O3 accounts for 65-85 percent, SiO2 accounts for 5-20 percent, PbO accounts for 1-15 percent and Al2O3 accounts for 1-5 percent. After such processes are carried out by the serum as screen printing, low temperature drying and high temperature sintering, the aspect ratio of a conducting electrode formed on the surface of solar cell is high, the solar cell produced by using the method has small front shading area and high photoelectric conversion efficiency.

A coating admixture, method of coating and substrates coated thereby, wherein the coating contains colloidal silica, colloidal alumina, or combinations thereof; a filler such as silicon dioxide, aluminum oxide, titanium dioxide, magnesium oxide, calcium oxide and boron oxide; and one or more emissivity agents such as silicon hexaboride, carbon tetraboride, silicon tetraboride, silicon carbide, molybdenum disilicide, tungsten disilicide, zirconium diboride, cupric chromite, or metallic oxides such as iron oxides, magnesium oxides, manganese oxides, chromium oxides, copper chromium oxides, cerium oxides, terbium oxides, and derivatives thereof. In a coating solution, an admixture of the coating contains water. A stabilizer such as bentonite, kaolin, magnesium alumina silicon clay, tabular alumina and stabilized zirconium oxide is also added.

The invention discloses a fire-proof adhesive and application thereof. The fire-proof adhesive comprises the following components by parts: 100 parts of high-temperature bonding agent, 10-70 parts of fire retardant, 0.5-50 parts of flame retardant synergist, 5-50 parts of strength enhancer, 0.05-20.0 parts of water-proof modifying agent and 0.01-2.0 parts of curing modifying agent. By adopting the fire-proof adhesive and a preparation method of a fire-retardant EPS (Expandable Polystyrene) foam heat-insulating plate, the combustion performance and physicochemical performance of the fire-retardant EPS foam heat-insulating plate can be improved remarkably. For example, the heat-conducting coefficient can be lowered below 0.055w/m.k, the specific gravity can be lower than 150Kg/M<3>, the compressive strength is higher than 150KPa, and the heat value is less than 3MJ/kg.

The invention provides geopolymeric compositions intended for use in carbon dioxide injection or production wells or storage reservoirs and preferably in a supercritical carbon dioxide conditions. The geopolymeric composition is formed from a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, a retarder and/or an accelerator and a carrier fluid wherein the oxide molar ratio M₂O/SiO₂ is greater than 0.20 with M an alkali metal.

A metal oxide nanoporous material comprises two or more kinds of first metal oxides selected from the group consisting of alumina, zirconia, titania, iron oxide, rare-earth oxides, alkali metal oxides and alkaline-earth metal oxides. The metal oxide nanoporous material has nanopores, each with a diameter of 10 nm or smaller, in which the metal oxides are dispersed homogeneously in the wall forming the nanopores.

The invention discloses a low-temperature curing high temperature-resistant inorganic/organic hybrid epoxy adhesive and a preparation method thereof, which relate to an inorganic/organic hybrid epoxy adhesive and a preparation method thereof. The invention solves the problems that inorganic/organic hybrid epoxy adhesive prepared by the prior art has poor high-temperature thermal aging resistance and needs high curing temperature. The low-temperature curing high temperature-resistant inorganic/organic hybrid epoxy adhesive is prepared by an epoxy resin, an epoxy resin low-temperature curing agent, a coupling agent, an inorganic active hybrid material and a dispersant. The preparation method comprises the following steps: the epoxy resin, the epoxy resin low-temperature curing agent and the coupling agent are mixed and stirred evenly, and then the inorganic active hybrid material and the dispersant are added into the mixture to be stirred evenly to obtain the low-temperature curing high temperature-resistant inorganic/organic hybrid epoxy adhesive. The low-temperature curing high temperature-resistant inorganic/organic hybrid epoxy adhesive has high high-temperature bonding strength, good high-temperature thermal aging performance and low curing temperature. The low-temperature curing high temperature-resistant inorganic/organic hybrid epoxy adhesive has the advantages of simple production technology, convenient operation and broad application.

This invention relates to a process of forming a nanocomposite of cellulose with a clay material that is used as the nanofiller material. The nanocomposites show significant improvements in thermal properties when compared to unbleached cotton and cotton processed under conditions for nanocomposite preparation. The degradation temperature of these nanocomposites is significantly increased over that of unbleached cotton.

A modified alkali silicate composition for forming an inorganic network matrix. The modified alkali silicate matrix is made by reacting an alkali silicate (or its precursors such as an alkali hydroxide, a SiO₂ source and water), an acidic inorganic composition, such as a reactive glass, water and optional fillers, additives and processing aids. An inorganic matrix composite can be prepared by applying a slurry of the modified aqueous alkali silicate composition to a reinforcing medium and applying the temperature and pressure necessary to consolidate the desired form. The composite can be shaped by compression molding as well as other known fabrication methods. A notable aspect of the invention is that, although composite and neat resin components prepared from the invention can exhibit excellent dimensional stability to 1000° C. and higher, they can be prepared at the lower temperatures and pressures typical to organic polymer processing.

Coatings and methods are provided. An embodiment of the coating includes microcapsules that contain at least one of a corrosion inhibitor, a film-forming compound, and an indicator. The microcapsules are dispersed in a coating vehicle. A shell of each microcapsule breaks down in the presence of an alkaline condition, resulting from corrosion.

The present invention provides a novel technology and a novel material having excellent pliability, gas barrier properties and water resistance, for the technical fields of packaging materials, sealing materials, electric insulating materials and the like, the present invention relates to a film of a material having a denatured clay as a main constituent thereof, wherein (1) the film comprises a denatured clay and an additive, (2) the weight ratio of the denatured clay is not less than 70% relative to total solids, (3) the film has gas barrier properties and water-vapor barrier properties, (4) the film has heat resistance, (5) the film has water resistance, (6) the film has sufficient mechanical strength to be used as a self-supporting film, and (7) the film can be formed on the surface of metals, plastics, rubber, paper and the like, and the present invention can provide a material comprising the denatured clay film in which denatured clay particles are highly oriented and which has excellent heat resistance, excellent pliability, excellent gas barrier properties, excellent water-vapor barrier properties, and high water resistance.

The present invention is directed to film coating systems for use on oral dosage forms such as compressed tablets and orally-ingestible substrates which have improved pearlescent qualities. The film coating systems can be applied either directly to a substrate or after the substrate has been coated with a subcoat. In preferred aspects, the pearlescent film coating is prepared as a dry powder mixture containing a cellulosic polymer, a detackifier, a gloss enhancer, and a pearlescent pigment. Film coating compositions containing an aqueous suspension of the powder mixtures, methods of applying the coatings to substrates and the coated substrates are also disclosed.

The invention discloses an inorganic adhesive for an artificial board, containing the following raw materials: 50 to 300 parts of inorganic solutions with the weight percentage content of 20 to 80 wt%, 5 to 80 parts of organic assistants, 2 to 60 parts of solidified toughening agent and 0 to 60 parts of inorganic solidifying agents. The inorganic adhesive for the artificial board in the invention has the advantages of extensive sources of the raw materials, no toxin or harm, and environmental protection, and the artificial board prepared from the inorganic adhesive has no release of free formaldehyde. The invention also discloses a method for preparing the inorganic adhesive, comprising the following steps of: firstly heating 50 to 300 parts of 20 to 80 wt% inorganic solutions to 30 to 120 DEG C, adding 5 to 80 parts of organic assistants in the inorganic solutions by stirring, fully and uniformly stirring, and then adding 2 to 60 parts of solidified toughening agent and 0 to 60 parts of inorganic solidifying agents after ageing for 2 to 24 h. The preparation technology of the inorganic adhesive for the artificial board is simple and easy to implement and is suitable for industrial production.