258results about How to "High curing strength" patented technology

A process of manufacturing cement clinker is provided in which a clean supply of CO₂ gas may be captured. The process also involves using an open loop conversion of CaO/MgO from a calciner to capture CO₂ from combustion flue gases thereby forming CaCO₃/CaMg(CO₃)₂. The CaCO₃/CaMg(CO₃)₂ is then returned to the calciner where CO₂ gas is evolved. The evolved CO₂ gas, along with other evolved CO₂ gases from the calciner are removed from the calciner. The reactants (CaO/MgO) are feed to a high temperature calciner for control of the clinker production composition.

The invention relates to a high-performance sand-soil consolidation material, as well as a preparation method and a using method thereof. The high-performance sand-soil consolidation material belongs to a mortar composition and is characterized by comprising the following raw materials in parts by weight: 5-40 parts of cement clinker, 3-6 parts of gypsum, 4-10 parts of alkali additive, 0.5-6 parts of compound activating agent, 1-4 parts of early strength agent, 2-10 parts of mineral activating agent, 3-8 parts of expansion agent and 22-77 parts of micro-powder formed by fine grinding of blast furnace water-quenched slag. The invention provides the high-performance sand-soil consolidation material which has the advantages of simple operation, convenient construction, good water resistance, fast consolidation, high early strength, stable improvement of post-strength, resistance to erosion of underground inorganic salt water, excellent anti-seepage performance and low production cost, as well as the preparation method and the using method thereof. The high-performance sand-soil consolidation material is suitable for consolidating mine tailings, natural weathered sand, fly ash, gravel, stone chips, stone powder, soil, sludge, construction waste, coal gangue and phosphorus slag into a solid material, and can be used for laying a subgrade, constructing a wall body and constructing a site foundation.

A curing resin composition which enables formation of an antireflection layer having good antiscratchability and a cured film obtained from such a curing resin composition are disclosed. The curing resin composition contains (A) a siloxane oligomer having an average molecular weight of 500-10000 in terms of ethylene glycol and (B) a fluorine compound having a number-average molecular weight of 5000 or more in terms of polystyrene and having a fluoroalkyl structure and a polysiloxane structure.

An epoxy resin adhesive for abrasive paper is prepared from the component A composed of epoxy resin and diluent, the component B consisting of solidifying agent and toughening agent and the component C which is solvent through proportionally mixing component A with B, stirring, proportionally adding component C and stirring.

The invention discloses a high-temperature speckle and controllable preparation method thereof. The high-temperature speckle uses a sodium silicate solution as a matrix, silicon dioxide powder and auxiliary additive powder are added to form a mixed liquid, the characteristics of short curing time, low curing temperature, good high-temperature-resistant performance, no toxicity and environmental protection are achieved, and sodium silicate itself has relatively high high-temperautre-resistant performance and high-temperature adsorption performance, and is suitable for being used for high-temperature speckle manufacture; a speckle template having a speckle pattern is prepared, thereby controlling the speckle size and speckle distribution; the speckle template can be repeatedly used, therebyfurther improving preparation efficiency; and after heating stirring, vacuumizing and gradient warming treatment, occurrence of a speckle bubbling phenomenon can be effectively reduced; materials of the high-temperature speckle are all conventional reagents, and are non-toxic under a normal using condition, thereby facilitating engineering practical application and large-scale manufacture; and thespeckle can meet a non-contact measurement requirement in high-temperature complex environments (thermal shock, and tension and compression deformation).

The invention provides a premixed calcium silicate based root canal filling material with suspension stability as well as a preparation method and an application thereof. At least one calcium silicate compound is used as a main phase, and at least a second phase for improving solidification performance, at least one nonaqueous phase solvent which can be mixed with water, at least one suspension stabilizing agent and at least one radiopaque material are added in order to prepare the root canal filling material with excellent injectable performance. An inorganic dispersant with suspension stabilizing effect is added into the premixed type calcium silicate based root canal filling material system, based on reservation of excellent biological compatibility, biological activity, marginal sealability, and the like of the calcium silicate material, layering, deposition or flocculation of the premixed system are effectively prevented, long-term dispersion stability of the premixed paste is improved, and the material can be used as a filling material for dental pulp capping, root canal therapy, and other dental restoration fields.

A single-composition room-temperature vulcanized silicone rubber sealant and a preparation method thereof are disclosed. The sealant is composed of the following compositions in parts by weight: (A) 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, (B) 10-30 parts of dimethicone, (C) 5-10 parts of a multi-functionality silane cross-linking agent mixture, (D) 1-5 parts of a silane coupling agent, (E) 50-150 parts of a reinforcing filling material, and (F) 0.1-0.3 parts of a catalyst; and the composition (C) is prepared by mixing the following components in percent by weight: C1, 0-30% of methyltris(methylethylketoxime)silane , C2, 0-30% of vinyltris(methylethylketoxime)silane, and C3, 50-80% of a ketoximinosilane partial hydrolysate. The novel multi-functionality silane mixture is employed as a cross-linking agent, so that the curing speed and the curing initial-stage strength are greatly improved, the dependence of the sealant to environment temperature and humidity is reduced, and the sealant still has relatively good curing speed under the conditions of low temperature and low humidity.

The invention discloses a beach sludge composite curing agent as well as a preparation method, a use method and an application thereof. The beach sludge composite curing agent is obtained by mixing and grinding of an ordinary Portland cement clinker, a sulphoaluminate cement clinker, phosphogypsum, desulfurization gypsum, mineral waste residues, a naphthalene-based additive and sulfates, wherein the weight percentages of the raw materials are as follows: 40-60% of the ordinary Portland cement clinker, 5-10% of the sulphoaluminate cement clinker, 2-4% of the phosphogypsum, 3-6% of the desulfurization gypsum, 30-50% of the mineral waste residues, 1-3% of the naphthalene-based additive and 3-5% of the sulfates. The beach sludge composite curing agent disclosed by the invention can greatly shorten the curing time of sludge, and is small in doping amount, high in concretion strength, low in construction cost, and good in curing stability.

The invention features a polymerizable composition that comprises a free-radically polymerizable acidic resin, and a photoinitiator system comprising a polycyclic aromatic component. The photoinitiator system may also contain a visible light sensitizer, an iodonium salt, and a tertiary amine.

It's object is to provide a (meth)acrylate compound excellent in photocurability, a curable composition comprising the compound and excellent in all of pattern accuracy, peelability, surface hardness, elasticity recovery and solvent resistance, an optical nanoimprint composition and a cured product of the curable composition and a method for producing it, especially to provide a composition favorable for a permanent film for flat panel displays, etc.

• A (meth)acrylate compound represented by the following formula (1):

wherein R¹ represents a hydrogen atom or a methyl group, R² represents a substituent having carbon atoms of 2 to 6 and having a carbon-carbon double bond, X represents an organic group having carbon atoms of 1 to 10, m and n each are an integer of 1 to 3.

The invention discloses a phosphate inorganic casting binder suspension curing agent and a preparation method thereof. The preparation method comprises the following steps of: adding organic resin to an alcoholic solvent; stirring to be fully dissolved and adding organic acid; stirring to be fully dissolved and then adding powder magnesia; and evenly stirring and dispersing to prepare the suspension curing agent. The invention also discloses the application of the curing agent to the foundry industry. The preparation method of the phosphate inorganic casting binder suspension curing agent is simple and adopts easily obtained raw materials with lower cost. The curing agent has the excellent performances of high efficiency, suspension rate and solid content, free toxicity, moderate reaction speed with the binder, and the like; a casting sand mould bonded by utilizing the curing of the curing agent and the organic binder has high sintering strength and stable sintering performance without a dust flying phenomenon in a sand-mixing process or generating dust pollution and is easy to popularize and apply in the foundry industry.

An antireflection film comprising a transparent support and a low-refractivity layer as an outermost layer, the low-refractivity layer being formed by a specific fluoropolymer-containing composition, and a polarizing plate and an image display device comprising the antireflection film.

The invention discloses a river sludge composite curing material with high organic matter content. Cement, coal ash, quick lime and yellow ground are adopted as main materials; and the additive is one or more of an activator, a reinforcer and an early strength agent; and the river sludge composite curing material comprises the following components in percentage by weight: 40%-60% of river sludge with high organic matter content, 10%-20% of cement, 10%-20% of coal ash, 2%-10% of quick lime, 2%-10% of yellow ground, 0-10% of activator, 0-1% of reinforce and 0-1% of early strength agent, wherein the contents of the activator, the reinforce and the early strength agent cannot be simultaneously zero. The composite curing material disclosed by the invention is applied to the river sludge with high organic matter content, so that the sludge can be cured into a building material. The original method of improving the strength by purely adding cement is improved; the additive disclosed by the invention has the advantages of being small in adding amount, low in price, easily available and high in strength increase proportion. Besides, the river sludge composite curing material disclosed by the invention can be used for effectively increasing the curing strength of the sludge with high organic matter content.

The invention discloses novel environment-friendly waterborne inorganic paint and a preparation method thereof. The novel environment-friendly waterborne inorganic paint is prepared from, by weight, 55-65 parts of kaolin, 12-20 parts of sodium silicate, 20-30 parts of titanium dioxide, 1-5 parts of nano zinc oxide, 5-10 parts of ultrafine wollastonite powder, 1-10 parts of nano calcium carbonate, 1-5 parts of ultrafine white mica powder, 7-15 parts of polyvinyl alcohol, 1-4 parts of ultrafine molybdenum disulfide powder, 2-10 parts of nano silicon dioxide, 2-12 parts of nano magnesium oxide, 2-12 parts of nano aluminum oxide, 1-3 parts of magnesium chloride, 1-3 parts of a sodium silicate hardening accelerator, 2-5 parts of a pH value regulating agent, 1-8 parts of a waterproof agent, 6-10 parts of an antifoaming leveling agent, 1-3 parts of a thickening anti-settling agent and 280-310 parts of water. The novel environment-friendly waterborne inorganic paint which is environment-friendly waterborne inorganic paint for buildings is high in storage stability, excellent in water resistance and alkali resistance, strong in adhesion, high in fire resistance, high in strength and hardness, resistant to scratching and contamination, excellent in corrosion resistance and antibacterial property, free of formaldehyde, benzene compounds, VOC (volatile organic compounds) and heavy metal elements, completely environmental friendly and nontoxic, suitable for industrial production, easy for painting and convenient and quick in construction.

The invention provides an environment-friendly inorganic soil solidification additive which comprises, by mass, 15-65% of sulfate, 15-65% of halide salt, 11-40% of phosphate, 5-30% of silicate, 0-25% of carbonate, 0-18% of basic oxide and 0-10% of lignosulfonate. The environment-friendly inorganic soil solidification additive is characterized in that all components in soil directly or indirectly undergo soil particle surface chemical modification and modification of substances among soil particles, and generation of colloidal gel materials and generation of various materials of crystal structures are promoted. As time goes, hardened skeletons such as ettringite needle-shaped crystals and apatite crystals appear gradually in solidified soil, soil solidification compressive strength, hydrophobicity, water permeability, stability of heavy metal and other harmful materials and other physical and chemical solidification effects are good, and the environment-friendly inorganic soil solidification additive can adapt to various climates, geographies and soil properties and is high in compatibility and obvious in stabilization and solidification effect on heavy metal and other harmful materials.

A submerged epoxy resin grouting material which uses by weight of 100 parts of liquid epoxy resin with epoxide value of 0.51-0.54 as the host, and uses 5-50 parts of propanone, 10-60 parts of furfuraldehyde as the viscosity-reducing agent in grouting construction process and reactants in curing procedure, by admission of 10-60 parts of benzaldehyde hexamethylene diamine condensate or benzaldehyde m-phenylenediamine condensate and 0.5-5 parts of silanes through moistening, penetration and intensifier bonding to prepare the material, which can be suitable not only for dry and humid environment, but also for water containing condition.

The present invention relates to a method for repairing concrete pavement. Said method includes removing powdered impurity and grease stain from surface of pavement let to be repaired; drying sand and broken stone; coating or spraying unsaturated polyester resin; using (by weight portion ratio) 1 portion of unsaturated polyester resin, 0.02-0.06 portion of solidifying agent, 3-5 portions of said and 4-6 portion of broken stone, firstly, uniformly mixing unsaturated polyster resin and solidifying agent, then mixing them with said and broken stone to obtain component A; uniformly mixing 1-2 portions of cement and 0.02-0.04 portion of accelerator to obtain component B; uniformly mixing A and B to obtain repairing material; spreading the repairing material to the lot to be repaired, compacting, striking off and spreading small quantity of dried cement powder on said lot so as to implement said repairing operation.

Provided are a shrinkage-reducing agent for a hydraulic material and a shrinkage-reducing agent composition for a hydraulic material including a compound represented by the general formula (1): R¹—[O-(A¹O)_m—R²]_n (1), where: R¹ represents R¹ derived from a polyhydric alcohol represented by R¹—[OH]_n; A¹O represents an oxyalkylene group having 2 to 18 carbon atoms; R² represents a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms; m represents an average added mole number of oxyalkylene groups A¹O's; n represents 3 or 4; and when n equals 3, m represents 30 to 150, and when n equals 4, m represents 5 to 150.

The invention provides a casing damage leakage well high-efficiency phenolic resin water plugging agent and an application thereof; the water plugging agent is composed of the following raw materials in parts by weight: 30-90 parts of phenolic resin, 1-5 parts of urotropine, 0.1-1 part of potassium polyacrylate, 5-25 parts of silica fume, and 24-79 parts of water. The water plugging agent is applied for water plugging of a casing damage leakage water injection well with the temperature of 60 DEG C-130 DEG C; firstly, 60 mesh-100 mesh quartz sand is added into the well, the sand amount is equal to the volume from the depth of a casing damage leakage layer to the interior of an artificial well bottom casing pipe, the position from the sand surface to the casing damage leakage layer is reserved, and the amount of the water plugging agent is calculated according to the formula Q=[Pi]r<2>h[Phi], wherein r represents the water plugging agent treatment radius, h represents the casing damage leakage layer thickness, and [Phi] represents the casing damage leakage layer porosity; then the water plugging agent is pumped and injected into a leakage stratum, pumping injection is stopped until the injection pressure is increased to 3-5 MPa, the responding time to close a wellhead gate is not less than 48 hours, and the water plugging agent is overall cured at the casing damage leakage part and the stratum.