111 results about "Chemical function" patented technology

The invention discloses a soda saline-alkali land comprehensive treatment agent and a use method thereof, and belongs to the technical field of control agents for improving moderate and severe soda salinization. The comprehensive treatment agent consists of a modifier and an organic fertilizer, wherein, components of the modifier comprise humic acid, zeolite, a acid conditioner, fly ash and furfural residue; and the components of the organic fertilizer comprise fermented chicken manure, crushed straw and wood vinegar liquid. The comprehensive treatment agent is applied at 13-17t per 1 hectare of saline-alkali land before harrowing and transplanting. The action mechanism of the soda saline alkali land comprehensive treatment agent integrate physical and chemical functions of chemical salifying, complexing, neutralizing, ion exchange, adsorption, desorption, passivation, fixing, preventing salt accumulation, emulsion breaking and like; which increase CEC by times, desorbs and leaches base and basic group in soil, significantly decrease the pH value, greatly reduce soluble Na ions; and a formed anti-salt accumulation plow pan structure really takes effect of 'salt isolation' and 'alkali decrease', thus realizing rice harvest in the same year of construction and cultivation.

The invention provides methods for the inhibition of inflammation by providing, to a cell, in need thereof, monoterpene compositions that inhibit NF-κB. These compositions may also contain a carrier moiety that renders the monoterpene composition membrane permeable. The carrier may include triterpenoid moieties, sugars, lipids, or even additional monoterpenoid moieties. The composition can also contain additional chemical functionalities. Methods for using these compounds to prevent and treat a wide range of inflammatory conditions, especially, premalignant inflammatory conditions are described.

An article having reversible thermal regulation properties comprises a substrate and a functional polymeric phase change material having a heat carrying capacity. The article is further characterized by a chemical function having moisture adsorbing properties that increase the heat carrying capacity.

The invention discloses a 6H-SiC single chip global planar chemical mechanical polishing (CMP) solution. In the solution, spherical micro-nano particles are taken as grinding materials. The solution comprises the following components in percentage by weight: 0.2-10 percent of 1-3 types of spherical particles of 10-250 nanometers serving as grinding materials, 0.05-15 percent of dispersion stabilizer, 0.05-25 percent of additive having a chemical function, 0.001-5 percent of lubricating, a pH regulator for regulating the pH value to 9.5-13.5 and the balance of high-purity deionized water. The polishing solution has the advantages of controllable removing rate, no damage to a chip after polishing, high flatness, low price and low cost, and can be applied to the CMP process of hard and brittle crystal materials and precision CMP of other optical materials.

The invention relates to a luminous metal-organic framework material with a chemical sensing function, a preparation method of the luminous metal-organic framework material, and an application of the material in detection of nitrobenzene organic matters. The preparation method comprises the following steps of: dissolving 5-(4-pyridyl)-1, 3-phthalic acid and zinc salt into an organic solvent in a certain proportion; and then synthesizing in a solvothermal way so as to obtain the luminous metal-organic framework material. The preparation method is simple in preparation process, high in material purity and excellent in stability. The synthesized metal organic framework material has the maximum emission wavelength of 381nm in water, and the fluorescence intensity of the synthesized metal organic framework material is gradually reduced as the unceasing increase of the concentration of the nitrobenzene organic matters, therefore, the material can be well applied to the detection of the nitrobenzene organic matters, and has the advantages of being fast in speed, simple, convenient, great in selectivity, high in sensitivity, etc.

The invention provides a dual-organic-ligand MOF, the MOF structurally comprises two different organic ligands with dicarboxylic structures; and the two different organic ligands with the dicarboxylicstructures comprise a phthalic acid organic ligand and a dipicolinic acid organic ligand. The structure of the provided dual-organic-ligand MOF comprises two different organic ligands, different organic ligands in the framework have different chemical functional groups, a chemical formula having an amino structure and a pyridine structure is obtained, the framework structure is charged due to thetwo organic ligands with two different chemical functional groups, the limit of the neutral framework of the MOF is broken, in addition to the fact that the positively charged framework structure with a high specific surface area shows the characteristic of the high specific surface area in the adsorption process, the MOF having different functional groups and the charged framework structure strengthens the adsorption effect in the dye wastewater, and has a better effect on adsorbing charged substances like an anionic dye.

A device for measuring and detecting the organophosphonis compounds, such as a pesticides or a nerve agents is provided. The devices function by selectively binding an organophosphorous compound to a luminescent functionality-imprinted copolymer. The copolymers possess a securely bound luminescent lanthamide ion, such as Eu³⁺, in a coordination complex that has been templated for the chemical functionality.

The present invention describes a method for producing a large area two-dimensional nanoscale network on the surface of a substrate. The network is formed by depositing a sub-mono-layer of molecule A onto the surface of the substrate followed by a different molecule B. The formation of the network relies on the hetero-molecular hydrogen bonding between molecules A and B to be stronger than the homo-molecular hydrogen bonding. By appropriate choice of molecules A and B, together with the substrate, it is possible to manipulate and control the structure, dimensions and chemical functionality of the network. The pores of the network can act as containment vessels for other molecules and be made sufficiently large to accommodate several large molecules or atomic/molecular clusters or particles.

A preparation method of kaolin antibacterial agent loaded with silver ion and copper ion pertains to the technical field of chemical function material. The method is characterized in that firstly silver salt, sodium dihydrogen phosphate, copper salt and water are mixed into solution, and then mixed with kaolin when stirring and finally added with ammonia chloride and ammonium dihydrogen phosphate, so as to obtain the kaolin antibacterial agent loaded with silver ion and copper ion after drying, grinding, calcining and regrinding. The method of low-temperature calcining kaolin loaded with silver ion and copper ion provided by the present invention has the advantages of simple process, good effect, being easy for realizing industrialization and no environment pollution.

The invention is a brittleness inhibition method of chemical function improved wood, and relates to a new method for wood function improvement. By toughening treatment, the negative influence of wood brittleness increase caused by modifying wood only by modified resin is reduced. The method particularly comprises the following steps of: first, preparation of a modifier; second, soaking of wood or wood base materials; third, reaction polymerization of a functional reagent om the wood or wood base materials. The used organic acid catalyst has excellent environmental protection performance, can react with hydroxyls in the modifier system and the wood so as to be fixed in the wood, has good leaching resistance, and has no environmental harm. Functionalized wood prepared by the technology of the invention has significantly improved impact strength. The impact strength of functionalized wood without toughening treatment is reduced by 75%, and the impact strength of functionalized wood with toughening treatment is reduced only by 35%. Meanwhile, the toughening treatment does not reduce other performance of the functionalized wood; the dimension stability is obviously improved; and the antiswelling efficient is up to 50-70%.

The invention discloses early strength cement grout with low dehydration ratio for grouting. The stable early strength cement grout for pre-grouting of coal mineshaft surface comprises the following components in part by weight: 100 parts of silicate cement, 80-120 parts of water, 10-40 parts of suspending agent, 1 part of inorganic sodium salt and 0.03-0.1 part of organic alcohol early strength agent. The cement grout utilizes physical and chemical functions of composite admixture, improves the suspending stability of the cement grout and the early compression strength of a concretion body, improves the flow deformation feature and the movable shearing force of the grout and realizes controllable grout diffusion distance.

The invention relates to a method for preparing a core-shell microsphere taking nano-cluster as a core and polymer as a shell by an in-situ polymerization method. The method comprises three steps of preparing nano-particles, preparing the nano-cluster and preparing the core-shell microsphere, wherein the organic phase nano-particles can be prepared by a two-phase method, a phase transfer method or a high-temperature thermal decomposition method; the nano-cluster is prepared by a method of taking oil drops as a template; the polymer shell is prepared by adopting the in-situ polymerization method; the size of the microsphere can be regulated by changing the amount of surfactant; and the thickness of the polymer shell can be achieved by adjusting the concentration of polymeric monomer. The method is a novel method combining the nano-luster with the polymer. The polymer-coated nano-cluster core-shell microsphere prepared by the method not only improves the stability and biocompatibility of the nano-cluster, but also introduces new chemical functions so as to integrate the functions of the nano-cluster and the polymer. Therefore, the method provides the novel multifunctional material with good stability for research on biomarkers, drug detection and sensors.

The invention relates to a preparation method and application method of a saline-alkali soil conditioner. The preparation method comprises the following steps: mixing a peat or lignite raw material containing humic acid with well ground attapulgite ore powder at a ratio (0-1):1; then, spraying concentrated sulfuric acid accounting for 80-110% of the total weight of the mixture under the condition of stirring or kneading; feeding into a curing cabin, and stacking for curing or aging for 24h; and finally crushing the cured material into 80-mesh fine powder, thus obtaining the saline-alkali soil conditioner. The saline-alkali soil conditioner can be prepared into a granular product through granulating and drying so as to be used or can be premixed with other acidic organic and inorganic fertilizers and then used; the use amount of the saline-alkali soil conditioner is 0.6-0.8 ton per hectare. The saline-alkali soil conditioner integrates the physical and chemical functions such as chemical salifying, complexing, neutralizing, ion exchange, adsorption and desorption, passivation and immobilization, alkali efflorescence prevention and demulsification, is capable of remarkably improving the cation exchange capacity of soil, desorbing and leaching salt groups and basic groups and remarkably reducing the pH value; film land in which the saline-alkali soil conditioner is used can ensure high yield of crops in the same year.

The invention relates to a compound high-efficiency flocculating agent used for seriously polluted water. The flocculating agent takes water soluble polymer polyacrylamide as main materials, takes water soluble polymer acrylic acid, hydroxyethyl cellulose and ethyl acrylate as active coagulant aid, takes ferrous sulphate and aluminium sulphate of inorganic salts as catalyzing flocculating agent, uses the configured universal chemical industrial production equipment and adopts the technique processing technologies of metering blending, synthetic reaction, stabile concentration, vacuum hydrolysis and spray drying and the like; and a compound high-efficiency flocculating agent with high polymerization degree, high relative molecular quality, low use amount and simple use method is developed. Due to the unique molecular structure and chemical function, the compound high-efficiency flocculating agent has stronger absorption and flocculating effect to fine particles in seriously polluted water, can absorb the fine particles containing various inorganic substances and difficult degradable organic substances in the seriously polluted water and flocculate the fine particles into floccules, and can realize the purpose of improving and purifying the water quality after the flocculating groups are removed. The flocculating agent is especially applicable to the industrial wastewater treatment of seriously polluted enterprises of paper-making, printing and dyeing, leather-making, electroplating, food and chemical engineering and the like.

The invention belongs to the field of chemical functional materials, relating to a low-temperature preparation method and application of a vanadium dioxide film. The preparation method adopts vanadyl acetylacetonate with low toxicity as a reactant; at the temperature of 250 DEG C -750 DEG C, the vanadium dioxide film with phase change characteristics is obtained under the condition of controlling sintering atmosphere. The phase change temperature of the film can be adjusted to be approached to the room temperature. The method has small energy consumption, simple preparation technology and favorable safety; and the obtained vanadium dioxide film has low sintering temperature and is suitable for industrial production in a large scale.

The invention discloses a method for preparing natural sunscreen and skin whitening components in cosmetics by utilizing fruits. Fruits sold on the market are cleaned twice with tap water; after the fruits are diced and weighed, carbohydrate which accounts for 5-30% the weight of the fruits and water which accounts for 1-3 times the weight of the fruits are added to completely dissolve sugar; the solid-liquid mixture is placed in a sterile fermentation tank and is subjected to controlled temperature fermentation for 90 days at room temperature of 20-39 DEG C; unsealing is performed after a fermentation period is due, and fermentation stock solutions are filtered and extracted in a sterile chamber. After the fermentation stock solutions undergo sterility detection, the fermentation stock solutions of different fruits are used independently or mixed proportionally, and natural perfume is added; and after the sterile test of the fermentation stock solutions is passed, filling is performed to obtain sunscreen components of the cosmetics. The sunscreen components are prepared by natural fermentation of fruit plants, and the sunscreen components have no artificial color and chemical functional components and have no adverse irritation to the skin.

The invention discloses a preparation method of a nano-grade layered silver-carrying-amino acid complex antibacterial agent. The method comprises the steps that: (1) silver salt, amino acid, and water are mixed according to a molar ratio of 1:1:2.7; the mixture is stirred for 30min under room temperature, and is stirred for 15min in a water bath with a temperature of 50 DEG C, wherein a stirring speed is 800r/min, such that a solution is prepared; (2) under a condition with a 50 DEG C water bath and a stirring speed of 800r/min, montmorillonite is added to the solution, and the mixture is stirred overnight under a hydro-thermal condition with a temperature of 50 DEG C, such that a material liquid is obtained; (3) solid-liquid separation is carried out; an obtained solid is dried under room temperature, such that a finished product antibacterial agent powder is obtained. The nano-grade layered silver-carrying-amino acid complex antibacterial agent is milk-white fluffy powder with excellent anti-tarnishing performance. With the method, the releasing-retardance and salt resistance of the antibacterial agent are improved. The antibacterial agent has a silver load of 18%. The antibacterial activity of the antibacterial agent is greatly improved. The method is suitable to be used in the technical field of chemical functional materials.

A petroleum drilling plugging and pressure-bearing agent and a method of preparing same. The plugging and pressure-bearing agent includes: bentonite, elastic particles, oil-soluble resin, asbestos powder, filler, an accelerator and a reinforcing curing agent. The plugging and pressure-bearing agent can effectively plug a gap being smaller than 3 mm; at a high temperature of 150 DEG C, pressure bearing capacity reaches 9 MPa, so that the product satisfies the demand of long-time high-temperature high-pressure-bearing situation. The product can be used for plugging micro-gaps in high temperaturemud rocks at the deep place of an extra deep well and collapse in fractured formations. The product achieves the plugging and anti-collapse effect through the chemical functions, has great pressure-bearing capacity, greatly prolongs the period of collapse, and guarantees safety of deep well drilling.

The invention relates to a sol-gel process for the functionalisation of a surface of a solid substrate in order to provide said surface with chemical functions that can react with chemical or biological molecules, i.e. chemical functions that can immobilise, attach, graft biological or chemical molecules. The invention can be used, for example, in the preparation of chemical and biological sensors, such as for the production of chips comprising DNA, oligonucleotides, sugars, peptides and small organic molecules.