2370 results about "Alkali free" patented technology

The present invention is directed to a substrate product for use in the manufacture of active matrix liquid crystal display panels. The product includes a display substrate suitable for use as a display panel. The display substrate has a thickness less than or equal to 0.4 mm, a composition that is substantially alkali free, and a surface smoothness that allows the direct formation of thin-film transistors thereon without a prior processing step of polishing and/or grinding. The product also includes at least one support substrate removably attached to the display substrate.

The invention discloses an alkali and chlorine-free liquid setting accelerator based on industrial polyaluminium sulfate. The liquid setting accelerator comprises the following raw materials by weight: 35-55% of polyaluminium sulfate, 5-25% of magnesium sulfate, alcohol amine accounting for 15-30% of the polyaluminum sulfate, 0-5% of an inorganic acid, 0-5% of a stabilizer, and the balance water. The liquid setting accelerator provided by the invention can be used in the wet jetting industry of sprayed concrete, belongs to alkali and chlorine-free liquid setting accelerators, has a stable period of more than 6 months, a 28d compressive strength ratio of greater than 100%, and good adaptability to different cement. When the dosage is 4.5%, the technical requirements of the JC477-2005 ''setting accelerators for sprayed concrete'' can be satisfied. The liquid alkali-free setting accelerator has superior performance, and can be widely used in tunnels, bridges, first-aid repair and other projects.

The invention relates to a high-strength aluminate silicate glass and a chemical toughening method thereof, and belongs to the silicate glass field. The glass comprises the following chemical components (weight percent): 55 to 65 weight percent of SiO2, 0.1 to 3 weight percent of B2O3, 6 to 24 weight percent of Al2O3, 3 to 9 weight percent of MgO plus CaO plus BaO plus SrO, 0 to 1 weight percent of ZrO2, 0 to 2 weight percent of ZnO, 0.1 to 0.5 weight percent of Cl2, 0.1 to 1.0 weight percent of Sb2O3, 0.1 to 0.5 weight percent of SO3 and 0.1 to 0.5 weight percent of F2, and belongs to a aluminate silicate glass system. The high-strength aluminate silicate glass is prepared through a known plate glass production method, and then is subjected to the strengthening treatment by adopting the chemical toughening method. The glass has high permeability of visible light, and relatively common soda lime glass, neutral medicine glass and alkali-free high-aluminum glass have good shock resistance property, high scratch resistance property and high durability. The high-strength aluminate silicate glass is applied to the screen surface protection of plasma display products and liquid crystal display products, the protection of touch screens, the screen protection of automated teller machines, and the screen protection of other electronic products (Mobile phones, PDAs and media machines, etc.), thereby effectively preventing the impact and the scratch damage to the glass surface of display products. The high-strength aluminate silicate glass contains no harmful elements.

The invention relates to a PET glass fiber reinforced composite material, which has the following components based on weight proportion: 100 portions of PET, 10-45 portions of alkali-free glass fibers, 5.0-25 portions of toughener, 0.1-10 portions of crystallization promoter, 0.1-1.0 portion of chain extender, 0.5-5.0 portions of nucleating agent, 0.1-0.5 portion of antioxidant and 0.3-0.5 portion of lubricant. The preparation method is that the components are evenly mixed on a high-speed mixer and melted and blended by a twin-screw extruder to prepare the composite material. The composite material has the advantages of good mobility, high tensile strength and high impact strength, which aims to realize low-cost and high-quality PET engineering plastic scale production to effectively substitute for high-grade plastics and expensive imported special materials.

A sealant composition for use in sealing solid oxide fuel cells is provided which comprises a glass component which comprises a mixture of alkali-free inorganic oxides, and an optional filler component dispersed in the glass component, said filler component being up to 40% by weight of the composition. The glass component can include, on a mole basis, 20 to 50% BaO, 1 to 10% Y₂P₃, 5 to 20% B₂O₃, 10 to 30% SiO₂, 3 to 35% MgO, 2 to 20% CaO, 1 to 10% ZnO, and 0 to 5% ZrO₂, and exemplary filler components include zirconia, alumina, barium titanate, strontium titanate, and combinations thereof.

The inorganic nanometer particle modified high performance regenerated plastic consists of recovered plastic 5-98 wt%, new plastic in the same type 0-93 wt%, inorganic nanometer particle 1-30 wt%, flexibilizer and compatilizer 1-30 wt%, and alkali free glass fiber 0-45 wt%, and the surface of the alkali free glass fiber is treated with silane coupler in the amount of 0.2- 5% of the added alkali free glass fiber. The said components are mixed homogeneously through stirring, melted and extruded to form.

The alkali-free liquid setting accelerator for spray concrete is compounded with aluminum sulfate 40-70 wt%, magnesium sulfate in 5-50 wt% of the aluminum sulfate, alcohol amine 2-10 wt%, stabilizer 0-10 wt%, defoaming agent in 0-10 wt% of the stabilizer, glycerin 0-1 wt%, and water for the rest. The present invention has excellent cement adaptability, and can provide excellent early strengthening performance and spray construction performance even if to difficult cement with lower C3A content, such as modified cement.

The invention discloses an alkali-free chlorine-free high-early-strength liquid accelerator and a preparation method thereof, and belongs to the technical field of building materials. The alkali-free chlorine-free high-early-strength liquid accelerator is synthesized by aluminum sulfate (a), alkaline earth metal salt (b), aluminum hydroxide (c), hydroxy carboxylic acid (d), an organic amine compound (e) and a stabilizing agent (f). The invention is characterized in that: the organic amine compound, a polyhydroxy organic matter and inorganic salt are subjected to complex reaction, and the molecular structure of the product is regulated by regulating a ratio of (a) to (b) to (c) to (d) to (e) to (f) so as to improve the performance of the product. Mortar doped with the product has the advantages of adjustable setting time, one-day compressive strength of over 20MPa and a 28-day compressive strength ratio of about 100 percent, the synthesis process is simple, reaction conditions are mild, and the alkali-free liquid accelerator has good performance.

Flat panel liquid-crystal displays, such as for laptop computers. The displays include twisted nematic displays, supertwisted nematic displays, active matrix liquid-crystal displays, thin film transistor displays, and plasma addressed liquid-crystal displays. The displays are furnished with glass substrates. The glass substrates exhibit high resistance to thermal shock, a high transparency over a broad spectral range in the visible and ultra violet ranges and the glass being configured to be free of bubbles, knots, inclusions, streaks, and surface undulations, which glass substrates are made from alkali-free aluminoborosilicate glasses. There are also provided analogous thin-film photovoltaics.

The invention discloses a polymeric aluminum sulfate synthesis method and discloses a preparation method of a novel alkali-free liquid accelerator based on synthesis of polymeric aluminum sulfate. According to the alkali-free accelerator, an aluminum sulfate solution is neutralized by ammonia water, active aluminum hydroxide gel is prepared, active aluminum hydroxide is filtered, dried and ground into powder, then the aluminum sulfate solution is added, and the polymeric aluminum sulfate is prepared. The alkali-free accelerator comprises, in percentage, 45%-55% of the polymeric aluminum sulfate, 0%-5% of inorganic acid, 0%-2% of a stabilizer, 0%-2% of an organic early strength agent, 0%-2% of an organic tackifier and the balance of water. The cement setting time and the colloidal mortar strength of the accelerator can meet the requirement of first-class accelerators for JC477-2005 sprayed concrete under the condition of the lower mixing amount, and meanwhile, the accelerator is an alkali-free liquid accelerator and can effectively avoid adverse effects caused by excessively high alkali content. The cement types of the accelerator have good adaptability.

The invention relates to a high-transverse-strength pultrusion structural sheet material and a manufacturing method thereof. The manufacturing method comprises that: alkali-free glass fiber roving, knitting felt and composite felt are drawn out from a creel and a felt shaft, and successively pass a yarn-guiding rack, a gum dipping tank, a pre-forming die apparatus; and glass fiber yarn and glass fiber felt subjected to infiltration and pre-forming enter a structural sheet material pultrusion die heated to a preset temperature, and sheet materials subjected to solidification forming are subjected to traction by a traction mechanism, fixed-length cutting and the like for being processed into a structural sheet material product with relatively large size and with a same shape as the die shape. The product is relatively high in transverse strength, light and high in strength, and can be subjected to secondary processing such as cutting, boring and the like. Additionally, concave-convex bayonets are arranged at the two sides of the sheet material, and the sheet material is widely applicable to buildings such as large-area building templates, wall plates, roof boards, furniture plates, decorative plates and the like, and also is applicable to other industries such as energy field and transportation field.

The invention discloses an ecological low-salt dyeing and finishing agent for reactive dyes, which comprises a crosslinking cationic modifier A and a branched cationic modifier B, wherein the weight ratio of the crosslinking cationic modifier A to the branched cationic modifier B is (30-50): 50. The ecological low-salt dyeing and finishing agent for reactive dyes disclosed by the invention has the advantages that in the process of treating cotton fibers by using the crosslinking cationic modifier and the branched cationic modifier, the inner portions and surfaces of the fibers can be modified through cationization, therefore, the utilization rate of reactive dyes can be improved, and the dye-uptake rate and fixation rate of cotton fabrics are significantly higher than those in conventional dyeing; salt-free low-alkali dyeing even salt-free alkali-free dyeing can be achieved, and dyeing wastewater can be recycled for secondary utilization; and the color fastness to washing and the color fastness to rubbing are consistent with those of conventional cotton fabrics.

The invention relates to aluminoborosilicate glasses as a glass casing body of a lighting means, especially for background illumination, which glass composition is equally suitable for use in lighting means with external contacting as well as for lighting means with internal contacting.

The invention provides a reactive dye salt-free dyeing process for cotton fiber, which comprises the following steps of pre-treatment, modified treatment, dyeing, post-treatment and so on. The modified treatment is that a copolymer of poly epichlorohydrin and polyamine used for cotton fiber is pretreated and cleaned under high temperature and alkali conditions before a special reactive dye used for a leveling agent is added to dye the cotton fiber, and the dyeing process is completed under salt-free, alkali-free or low-alkali conditions, thereby improving dyeing and fixing rate of the dye. The reactive dye salt-free dyeing process simplifies the prior dyeing process, is simple and easy to understand for operators, reduces influences of human operation factors on dyeing process and dyeing quality, and lowers production cost and sewage treatment cost overall.

The invention discloses low gloss scratch resistant glass fiber reinforced PP (Propene Polymer) composite material and a preparation method thereof. The composite material comprises the following components in weight percentage: 38 to 88 wt% of polypropylene with the rate being of 0.01 to 100g/10min, 5 to 30 wt% of chopped alkali-free glass fiber, 2 to 10 wt% of polar monomer graft polymer compatilizer, 0.2 to 1.0 wt% of heat stabilizer, 0.3 to 1.0 wt% of processing agent and 5 to 20 wt% of flexibilizer. The composite material has excellent rigidity, heat resistance, normal-temperature and low-temperature impact performance, low gloss and scratch resistance, the tensile strength is larger than or equal to 35Mpa, the elongation at break is larger than or equal to 5 percent, the bending modulus is larger than or equal to 2000 Mpa, the heat deflection temperature (0.45Mpa) is larger than or equal to 120 DEG C, the notch impact strength at 23 DEG C is larger than or equal to 35 KJ/m<2>, the notch impact strength at minus 30 DEG C is larger than or equal to 15KJ/m<2>, the gloss Gs (60 DEG C) is smaller than or equal to 2.4 GU, and the chromatic aberration Delta L of the composite material is smaller than or equal to 1.5 after the composite material is scratched by 10N force.

The invention discloses an alkali-free liquid accelerator, and a preparation method and an application thereof. The alkali-free liquid accelerator is prepared from, by weight, 35-60% of aluminum sulfate, 2-8% of aluminum hydroxide, 1-5% of alcohol amine, 0.5-1% of a dispersant, 0.1-0.5% of a stabilizer, and the balance of water. The accelerator is neutral, effectively avoids later alkali-aggregate reactions and avoids hidden safety troubles; the accelerator has low admixture and superior performances, and is far better than first-grade accelerators in initial setting time, final setting time and later strength; and the accelerator has the advantages of small rebounding amount, low dust concentration, provision of safe and healthy operating environment for construction personnel, engineering cost reduction, construction progress acceleration and good economic and social benefits in the concrete jet construction process.

The invention provides a preparation method of a nanopowder-based composite thermal insulation material. The preparation method comprises the following steps: by using nanopowder as a base material and alkali-free ultrafine glass fibers, aluminium silicate fibers, zirconia fibers, multicrystal mullite fibers and the like as reinforcing materials, adding infrared opacifiers (potassium hexatitanate whiskers, SiC, ZrSiO4 and rutile or anatase TiO2), adding a high-temperature contraction inhibitor and a hydrophobe as required and carrying out dispersion, blending, compression forming and the like, thus preparing the nanopowder-based composite thermal insulation material. The preparation method belongs to the dry forming preparation process and is simple in preparation process and safe and reliable in operation process. The press-formed thermal insulation material has good mechanical property, thermal insulation property, high-temperature thermal stability and hydrophobicity and can meet the requirements of the fields such as aerospace, the high-temperature industry and the like for efficient thermal insulation materials.