41 results about "Portlandite" patented technology

The invention provides a ceramic bovine flame retardant polymer composite material based on polyolefin or a thermoplastic polyurethane elastomer. The ceramic bovine flame retardant polymer composite material is prepared from the following components in parts by weight: 30-40 parts of polyolefin resin or the thermoplastic polyurethane elastomer, 25-45 parts of a ceramic forming filler, 20-30 parts of a halogen-free flame retardant, 1-5 parts of a flame-retardant synergist, 1-3 parts of a plasticizer, 0.5-2 parts of an antioxidant and 0.02-0.15 part of a crosslinking agent, wherein the ceramic forming filler is prepared from the following components including low softening point glass powder and a silicate mineral filler. The invention also provides application of the ceramic bovine flame retardant polymer composite material in the field of cables. According to the ceramic bovine flame retardant polymer composite material disclosed by the invention, a dense ceramic bovine product can be formed within a range from 600 DEG C to 1000 DEG C, and the formed ceramic bovine product is good in high-temperature strength and flame retardancy and is also good in mechanical properties under room temperature.

The invention discloses a method for preparing an organic and inorganic hybridization modified polyurethane chemical grouting material. The method adopts water-soluble end isocyanate-polyether prepolymer, special expandable phenol-formaldhyde resin and a surfactant to form a component A; and inosilicate liquor, an amine catalyst and an organic tin catalyst form a component B, and the component A and the component B are mixed and stirred uniformly. The chemical grouting material has the advantages of wide raw material sources, low cost, stable performance, appropriate viscosity, accurate gelation time control, low toxic chemical composition content, good flame retardant property, high adhesive strength, high stone forming rate, low permeability, high mechanical strength and good corrosion resistance and aging characteristic.

The invention discloses a slow-setting type waterproof mortar having self-repairing function and secondary permeability resistance as well as a preparation method thereof. The slow-setting type waterproof mortar having self-repairing function and secondary permeability resistance is prepared by using the following raw materials and water: a mixed cement, quartz sand, silica fume, heavy calcium, a capillary crystalline active master, a water reducer, an antifoaming agent, a coagulation accelerator and cellulose ether; and the mixed cement is composed of an ordinary portland cement and a quick-setting type sulphoaluminate cement. The slow-setting type waterproof mortar is used for repairing construction, if secondary leakage is happened, the capillary crystalline active master, the repairing mortar and a cement hydration product portlandite in concrete are continuously reacted for realizing self restoration, so that secondary anti-permeability effect can be reached, and secondary or multi-time restoration for regenerated cracks can be avoided.

The invention relates to a diatomite/ground limestone composite humidity controlling material and a preparation method thereof. The preparation method comprises the following steps: by taking diatomite and ground limestone as raw materials, adopting a uniform mixing-roasting method, batching and uniformly mixing the diatomite and ground limestone according to a mass ratio of 1:(0.5-1.5), feeding the mixture into a rotary furnace, roasting at 600-850 DEG C for 1.0-3.0 hours, thereby obtaining the product. According to the composite humidity controlling material, main mineral components of the composite humidity controlling material are calcium silicate, portlandite, calcite and dehydrated diatomite, the nitrogen adsorption specific surface area is more than or equal to 8m<2>/g, the pore volume is more than or equal to 0.02cm<3>/g, and the mean pore size is 8-15nm. According to the composite humidity controlling material prepared by the method disclosed by the invention, the moisture absorption performance is obviously improved compared with the moisture absorption performance of a pure diatomite humidity controlling material, the ambient temperature is 30 DEG C, and the maximum moisture absorption content reaches 13 percent and 10 percent or more under the relative humidity of 90 percent and 80 percent; and moreover, the balanced moisture content reaches 13 percent and 9 percent or more and is improved by more than two times compared with that of pure diatomite, and the composite humidity controlling material adopts a simple preparation process, is low in production cost and has good application prospects.

The invention discloses a preparation method of a gypsum mine slag cement-based thick-type steel structure fireproof, anticorrosive, thermal-insulation integrated coating. According to the preparation method, gypsum mine slag cement is obtained via mixing of gypsum, blast furnace slag, and Portland cement clinker; an ingredient A is obtained via mixing of acrylic acid waterproof elastic emulsion, styrene-acrylic emulsion, vinyl chloride-vinylidene chloride copolymer emulsion, mica powder, titanium dioxide powder, iron red powder, ammoniacal liquor, hydroxyethyl cellulose ether, a dispersant, an antifoaming agent, an antiseptic, a film forming auxiliary agent, and water; a fireproof steel structure anticorrosive primer is composed of the ingredient A and the gypsum mine slag cement; a thick-type steel structure fireproof thermal-insulation coating is obtained via mixing of expanded vermiculite, expanded perlite, rubber powder, hydroxyethyl cellulose ether, and the gypsum mine slag cement; and a finished product is obtained via steel structure surface cleaning treatment, coating of the fireproof steel structure anticorrosive primer, polishing, and coating of the thick-type steel structure fireproof thermal-insulation coating. The comprehensive cost is low; the preparation method is friendly to the environment, can be widely used for fire protection, corrosion protection, thermal insulation, and energy reduction of different kinds of steel structures.

Calcium phosphate and related coating powder particles comprising a surface component comprising a silicate content, plasma sprayed coatings thereof on implantable medical/dental devices, and bone grafting materials of such coated particles. Optionally, biologically active agents such as bone morphogenetic proteins, growth factors, analgesics, and antibiotics can be incorporated therein.

The invention discloses a nano antimicrobial internal wall paint containing illite-montmorillonite clay and a preparation method thereof, belonging to the field of phyllosilicate clay minerals. The nano antimicrobial internal wall paint is composed of an illite-montmorillonite clay nano slurry and a water-based internal wall latex paint, wherein the illite-montmorillonite clay nano slurry accounts for 10-20 wt% of the total nano antimicrobial internal wall paint. The preparation method comprises the following steps: (1) crushing natural illite-montmorillonite clay mineral, and adding water to obtain a slurry; (2) regulating the pH value of the slurry, and dispersing; (3) carrying out screening, iron removal and bleaching on the slurry; (4) grinding the bleached slurry by a high-energy density stirring grinder to obtain a nano slurry; and (5) mixing the nano slurry with the water-based internal wall latex paint, and sufficiently stirring uniformly to obtain the nano antimicrobial internal wall paint containing illite-montmorillonite clay. The nano antimicrobial internal wall paint has excellent anti-mildew and antimicrobial effects, and can obviously lower formaldehyde, methylbenzene, dimethylbenzene and other toxic harmful substances in the paint.

The present invention discloses a silicate composite electrode material and a preparation method thereof. According to the silicate composite electrode material provided by the present invention, a silicate Li2MSiO4 material and a high-conductivity carbon material are connected through chemical bonding to form a high-activity composite electrode material, wherein M is Fe, Co, Mn or Ni. According to the silicate electrode material provided by the present invention, the lithium ion/electron transmission performance of the silicate electrode material is enhanced through a chemical bonding function, so that the silicate electrode material has excellent electrochemical activity when serving as a positive pole or negative pole of a lithium ion battery; meanwhile, use of a carbon material further enhances the conductivity of the silicate electrode material; and therefore, a foundation is laid for preparation of a lithium ion battery with high rate performance. The silicate electrode material provided by the present invention is simple in preparation method and low in production cost and therefore is very suitable for large-scale industrial production.

Relating to the technical field of inorganic non-metallic materials, the invention discloses titanium slag cement, a preparation method and application thereof. The titanium slag cement contains titanium extraction tailings, an activator, a reinforcing agent, an auxiliary reinforcing agent and an early strength agent; wherein the titanium extraction tailings contain 25-30wt% of calcium oxide, 20-25wt% of silicon dioxide, 5-10wt% of titanium dioxide, 5-7wt% of fixed carbon, 7-8wt% of calcium chloride and magnesium chloride, 10-20wt% of aluminum oxide and 5-10wt% of magnesium oxide. The titaniumextraction tailings are adopted as the main raw material to prepare titanium slag cement, while the titanium slag cement production cost is reduced, and the resource utilization rate is increased, the titanium slag cement also has the characteristics of high strength and quick setting and hardening, and the performance indexes meet the 325R grade index requirements of ordinary Portland cement, therefore the titanium slag cement can be applied to cement blocks, cement pavement bricks, mortar, roadbed water stable layers, soil body curing materials and temporary engineering.

The invention relates to a method for preparing a material based on an aluminosilicate selected from barium aluminosilicate BAS, barium-strontium aluminosilicate BSAS, and strontium aluminosilicate SAS, said aluminosilicate consisting of aluminosilicate with a hexagonal structure, characterised in that it includes a single sintering step in which a mixture of powders of precursors of said aluminosilicate, including an aluminium hydroxide Al(OH)₃ powder, are sintered by a hot-sintering technique with a pulsed electric field SPS; whereby a material based on an aluminosilicate, said aluminosilicate consisting of an aluminosilicate with a hexagonal structure is obtained. The material based on an aluminosilicate prepared by said method can be used in a method for preparing a composite material consisting of an aluminosilicate matrix reinforced by reinforcements made of metalloid or metal oxide.

The invention relates to a method for preparing continuous SiO2/nanocrystalline metal aerogel fiber with catalytic performance by adding nanocrystalline metal in situ. The method comprises the steps that salicate is prepared into a spinning solution, then, a nanocrystalline metal catalyst is added into the spinning solution, the spinning solution is added into coagulating bath, reaction wet spinning is conducted, orthosilicic acid/silicate fiber containing the nanocrystalline metal catalyst is obtained, winding and room temperature ageing are conducted, the orthosilicic acid/silicate fiber is washed to be neutral through deionized water, solvent replacement is conducted through deionized water or ethyl alcohol, drying is conducted, and the continuous SiO2/nanocrystalline metal aerogel fiber is obtained. The method has the advantages that raw materials are low in price and easy to obtain, the reaction process is simple, and spinnability is good. The continuous SiO2/nanocrystalline metal aerogel fiber with catalytic performance prepared through the method has abundant holes, and is high in specific surface area, and resistant to high temperature and chemical corrosion; the specific surface area of the fiber and the content of nanocrystalline metal in the fiber are adjustable, and the method has application prospects in catalysis and other fields.

The invention discloses a rubber block isolating agent for breaking natural rubber, and a preparation method thereof. The rubber block isolating agent comprises the following components in parts by weight: 10 to 20 parts of fatty acid ester, 10 to 20 parts of fatty acid, 1 to 10 parts of organic filler, and 60 to 75 parts of an inorganic carrier, wherein the fatty acid ester is one or more of pentaerythritol tetrastearate, glyceryl stearate and propylene glycol stearate; the fatty acid is one or more of stearic acid, palmitic acid and lauric acid; the organic filler is one or combination of fatty acid calcium and fatty acid zinc; the inorganic carrier is one or combination of silicate filler and calcium carbonate filler. The rubber block isolating agent can be combined with a broken rubber block quickly to isolate the rubber block so as to prevent adhesion again, dust cannot be generated during spraying, the usage of the isolating agent is reduced, and the working environment is improved.

The invention relates to a production process of special low-carbon steel slag cement. The special low-carbon slag cement uses steel slag, mineral slag and portland cement clinker as main raw materials. Because the steel slag has low activity, large hardness, crushing difficulty and lower utilization rate further lower than the mineral slag, by adopting new processes of three-time crushing, three-time magnetic separation, closed-path pre-grinding and independent material grinding, the production process reduces the grinding particle size and the metal content of the steel slag, excites the activity of the steel slag to overcome the defects of low early-stage strength and long setting time of the steel slag cement, thereby stably producing 425 steel slag cement for a long term, wherein the 425 steel slag cement is used for various industrial and civil large-size buildings.

The invention relates to a resin-permeated silicate composite material. The material is obtained through a curing reaction of components comprising resin and glass phase silicate under the presence ofa curing agent, wherein the mass ratio of the resin to glass phase silicate to the curing agent is 1:(1-3):(0.005-0.02). The invention also relates to a preparation method of the resin-permeated silicate composite material, grouting molding is adopted for preparing a porous ceramic block body, and after the resin is permeated into the porous ceramic block body, the composite material of a silicate/resin double network structure is obtained by means of curing. According to the preparation method, the preparation process of a porous silicate ceramic blank body is simplified, the resin-permeatedsilicate composite material prepared by the method effectively combines the advantages of the resin and ceramic and has high mechanical performance and aesthetic performance, great development potential and a broad market prospect in the aspect of dental restoration application.

Disclosed are metal oxide catalysts, and methods for their use, that includes a bulk metal oxide catalyst composed of at least two metals and nesosilicate. The catalyst is capable of catalyzing the carbon dioxide reforming of methane to produce hydrogen and carbon monoxide.