58results about How to "Improve affinity" patented technology

The present invention relates to an amphiphilic block copolymer of a hydrophilic block and a hydrophobic block with a terminal hydroxyl group wherein the terminal hydroxyl group of the hydrophobic bock is substituted with a tocopherol or cholesterol group. It also relates to polymeric compositions capable of forming stable micelles in an aqueous solution, comprising the amphiphilic block copolymer and a polylactic acid derivative wherein one or more ends of the polylactic acid are covalently bound to at least one carboxyl group.

The invention relates to anticorrosive coating and provides the heavy-duty anticorrosive polyaniline coating with strong anticorrosive property and antifouling and antistatic capabilities, and a preparation method of the heavy-duty anticorrosive polyaniline coating. The heavy-duty anticorrosive polyaniline coating comprises the following raw materials according to weight percent: 8-15% of polyaniline and montmorillonite composite material, 10-15% of mica powder, 10-15% of talcum powder, 15-20% of quartz powder, 30-40% of matrix resin, 0-5% of modified resin, 0-3% of pigment, 0.5-1.0% of defoaming agent, 0.5-1.0% of dispersant, 0.5-1.0% of leveling agent, 0.5-1.0% of film-forming agent and 30-40% of solvent. According to the preparation method, the polyaniline and montmorillonite composite material is prepared firstly through the steps: pretreatment of montmorillonite, in-situ intercalation reaction of polyaniline and synthesis of a polyaniline and montmorillonite intercalation compound; and finally, the heavy-duty anticorrosive polyaniline coating is prepared.

The invention provides a surface-modified graphene, comprising a graphene powder and at least one surface-modified layer, wherein the least one surface-modified layer comprises a surface modification agent and at least two functional groups disposed at two ends of the surface modification agent respectively; one functional group of the at least two functional groups can generate a chemical bond with an organic functional group on the surface of the surface-modified graphene powder; and the other functional group of the at least two functional groups forms a surface characteristic of the surface-modified graphene, wherein the surface modification agent comprises at least one of a coupling agent, aliphatic acid and a resin. Therefore, the surface-modified graphene powder can increase the dispersibility of the graphene powder in a solvent, enhance the endophilicity between the graphene powder and an organic polymer, and make the composite material to be more durable and to have wider applications.

The invention relates to a concrete anti-cracking and anti-permeability special additive, which is composed of the following components in parts by weight: 9 to 11 parts of carboxyl material that is prepared by mixing sodium carboxymethyl cellulose and carboxylated graphene according to a mass ratio of 1:7.2-8.2, wherein sodium carboxymethyl cellulose and carboxylated graphene are both powder with a particle size of 500 to 600 meshes; 4 to 6 parts of zinc oxide with a particle size of 300 to 400 meshes; 4 to 5 parts of active carbon powder with a particle size of 200 to 300 meshes; 40 to 42 parts of nano level light heavy calcium carbonate powder with a particle size of 1000 to 1200 meshes, and 65 to 68 parts of polyester fiber with a length of 10 to 15 mm and a diameter of 20 to 25 [mu]m. The provided concrete special additive can largely improve the anti-cracking and anti-permeability performance of concrete, and thus the waterproof protection period of building is largely prolonged.

The invention relates to a liposome compound and the preparing method, which is characterized in that said liposome compound comprises one or several compounds of clindamycinum, fleraxacin, levofloxacin hydrochloride and ciprofloxacin. The toxicity of product is low, medical effect is high and effective prevention of drug resistance generation by pathogenic microorganism.

The invention relates to a method for preparing a rehydration bacterial cellulose membrane by utilizing a vegetable protein and hydrolysate of the vegetable protein. The method comprises the following steps of: (1) soaking a bacterial cellulose gel membrane of which a thalli and a residual culture medium are removed into 0.5 percent to 10 percent of vegetable protein liquid or vegetable protein hydrolysate for 10 to 300min, so that protein molecules, peptide molecules or free amino acid are/is diffused to enter the inside of a bacterial cellulose fiber network and be linked to the surface of the bacterial cellulose fiber network; and (2) carrying out oven drying or freeze drying on the processed bacterial cellulose membrane to obtain the rehydration bacterial cellulose membrane. The rehydration bacterial cellulose membrane prepared by the method can effectively improve rehydration capacity and the water holding characteristic of the dried bacterial cellulose membrane; and meanwhile, the rehydration bacterial cellulose membrane comprises the natural plant active protein, and thus, the rehydration bacterial cellulose membrane has various physiological functions of nutrition, moisturizing, aging prevention, regeneration promotion and the like when being applied in the fields of cosmetics and medicine.

The invention relates to an epoxy resin solid lubrication coating material containing surface finish graphite oxide and a preparation method thereof. The material is a coating material containing a component A and a component B, and is characterized in that: the component B is a curing agent, and the weight of the component B is 3-15% of that of the component A; the component A comprises the following components by weight percentage: 20-35% of solid lubricant, 25-45% of epoxy resin, 1-5% of coupling agent and 25-55% of organic solvent. The invention provides a method and an approach for preparing a polymolecularity and macromolecule based nanocomposite and a macromolecular resin based solid-film lubricantion coating material, solves the problems of poor dispersity of the graphite solid lubricant in a resin solution, and solves the difficult problems that the macromolecular resin based solid-film lubricantion coating material has uneven concentration and harder thickness control, defects of the coating and the like.

The invention discloses a pearl skin-whitening BB cream which comprises the following components: 5-10 percent of modified nano pearl powder, 5-10 percent of nanoscale ipophilic titanium dioxide, 1-5 percent of superfine lipophilic talcum powder, 0.5-2.5 percent of a lipophilic iron oxide pigment, 5-10 percent of octanoic/capric triglyceride, 1-5 percent of cetyl PEG/PPG-10/1 polydimethylsiloxane, 5-15 percent of cyclopentasiloxane, 1-5 percent of isohexadecane, 1-5 percent of cyclomethicone, 5-10 percent of butanediol, 5-10 percent of glycerol, 1-5 percent of 1,2-pentanediol, 0.1-1 percent of sodium chloride, 0.1-0.3 percent of EDTA-disodium, 0.005-0.05 percent of sodium hyaluronate, 1-5 percent of a co-emulsifier, 0.5-2.5 percent of cosmetic, 0.1-0.5 percent of a preservative, 0.03-0.3 percent of essence and the balance of deionized water. The invention further discloses a preparation method of the pearl skin-whitening BB cream.

The invention provides a production method of superfine modified ground calcium carbonate by wet grinding, comprising the following steps: (1) preparing ground calcium carbonate slurry; (2) preparing water-soluble surface modifier; (3) preparing the superfine modified ground calcium carbonate. In the production method, excellent water-soluble surface modifier is added in the water-soluble surface modifier, and the wet grinding method is used for producing the superfine modified ground calcium carbonate, thus, the affinity of the ground calcium carbonate particles to the organic superpolymer is enhanced, the dispersing performance of the ground calcium carbonate in the superpolymer is improved, and the prepared superfine modified ground calcium carbonate is excellent in affinity to the superpolymer, high in dispersing performance in the superpolymer and excellent in compatibility to the superpolymer and the auxiliary materials. By taking the superfine modified ground calcium carbonate produced by the production method as filler, the filling volume of the ground calcium carbonate in the products can be increased, and the performance of the products can be improved.

The invention relates to a method for manufacturing an ionic enzymatic suspended filler for highly difficult waste water treatment, which belongs to the technical field of waste water treatment. The ionic enzymatic suspended filler is manufactured by processes of fiber spinning, needling, fluffing, heat setting and the like. The ionic enzymatic suspended filler is made from a fabric consisting of first fibers of polyolefin resin and second fibers of the polyolefin resin with a melting temperature lower than that of the first fibers, and a non-woven fabric as an underlayer; the fabric is connected to the non-woven fabric by a needling method; and the first fibers are mutually adhered, and are adhered to the non-woven fabric by melting the second fibers. The method has the advantage that: the suspended filler obtained by the method has the characteristics of large specific surface area, good mechanical strength, strong tolerance, good biological adhesion performance, easy membrane hanging, promotion of microbial growth, easy filling and the like.

This invention provides methods and systems for linking the functional activation of a responder molecule to the interaction of two or more binding ensemble members of interest either in vitro or in vivo, and thereby producing a signal, phenotype, or other functional output in response to the interaction of the binding ensemble members. The systems comprise a responder, an inhibitor of the responder, and an inhibitor of the inhibitor, or “reactivator” of the responder, and interacting components. Two binding ensemble members are complexed to the other components of the system in such a way that interaction of the binding ensemble members, either directly or via additional ensemble members, causes a shift in the equilibrium of inhibitor binding from the responder to the reactivator, thereby functionally activating the responder.

The invention discloses a battery with membrane-coated electrodes, belonging to the field of batteries. The battery with the membrane-coated electrodes disclosed by the invention comprises a positive plate and a negative plate arranged in a battery shell; an isolation film is arranged between the positive plate and the negative plate; a positive membrane and a piece of positive catalytic gauze are arranged between the positive plate and the isolation film in sequence; the positive catalytic gauze coats the surface of the isolation film; a piece of negative catalytic gauze and a negative membrane are arranged between the isolation film and the negative plate in sequence; the negative catalytic gauze coats the surface of the isolation film; the positive plate is a nano Rh-graphene composite electrode; the negative plate is a nano Co2SnO4 naphthalene polysulfonic acid electrode; the positive membrane is a perfluorosulfonic acid proton film; the negative membrane is silicon dioxide; the thickness of the positive membrane is 300 nm; and the thickness of the negative membrane is 300 nm. The battery with the membrane-coated electrodes disclosed by the invention has the characteristics of being small in volume, light in weight, safe and steady in use process, large in battery capacity, difficult in electrode loss and excellent in discharging performance.

Paper product is made starting from aqueous furnish containing fibres and filler. Anionically charged nanofibrillar cellulose and cationic strength additive are added to the aqueous furnish, and the furnish is made to a paper product by dewatering the furnish. Filler content of the paper product can be increased above 40 wt-%.

The present invention relates to fusion polypeptides, comprising at least two peptides. The invention further relates to the use of these fusion proteins in antivascular therapy of neoplastic diseases and to their use I the production of a drug for the treatment of neoplastic diseases.

The invention discloses a method of continuous catalytic synthesis of 1-alkoxyl-1,1,2,2-tetrafluoroethane in a fixed bed. The method comprises the following steps: (1) carrying out a reaction on a chloromethylated polystyrene sphere, trimethylamine and fluorine-containing fatty amine in a weight ratio of 100:(20-50):(5-20), wherein the reaction temperature is 30-50 DEG C and the reaction time is 5-20 hours, and after reaction, obtaining a strongly basic solid catalyst with multifunctional groups; (2) filling tetrafluoroethylene and alcohol into the fixed bed of the catalyst obtained in the step (1) to react, wherein the reaction condition is that the alkene and alcohol ratio is 1-4, the air speed is 1-3/h, the reaction pressure is 0.1-0.8MPa and the reaction temperature is 20-60 DEG C, and collecting reaction products for gas-liquid separation to obtain a 1-alkoxyl-1, 1, 2, 2-tetrafluoroethane product. The method disclosed by the invention has the advantages of simple process, high yield, less three wastes and easiness in industrialization.

The invention discloses a starch-based paperboard adhesive and a preparation method thereof. The starch-based paperboard adhesive comprises starch, a solvent for dissolving starch and preparing starch slurry, alkali liquor and borax, wherein the alkali liquor is used for regulating the pH value of the starch slurry to be 8-9. The preparation method for the starch-based paperboard adhesive comprises the following steps: preparing the starch slurry; adding the alkali liquor into the starch slurry, wherein the temperature of the starch slurry is 36-38 DEG C; regulating the pH value of the starch slurry to be 8-9, thereby preparing alkalescent starch slurry; increasing the temperature and stirring the starch slurry till reaching the gelatinization temperature of the starch slurry, thereby acquiring the starch paste; reducing the temperature of the starch paste to 30 DEG C and then adding borax and stirring, thereby acquiring an end product of the paperboard adhesive. According to the invention, the step of preparing glue is reduced under the condition that the glue-preparing time is not reduced, the alkali liquor is added at one time, the weighting error is reduced and the glue-preparing reliability and stability are improved.

The invention relates to the field of flame retardants, in particular to a preparation method of an organic silicon-phosphorus synergistic flame retardant. The preparation method comprises the following steps: (1) preparing polyhydroxy silsesquioxane: performing hydrolytic reaction on trichlorosilane in an aqueous solution in the presence of a catalyst to obtain the polyhydroxy silsesquioxane; (2)performing phosphate esterification: enabling the polyhydroxy silsesquioxane and phosphate to have condensation reaction under the catalysis of pentafluorophenyl borane to obtain phosphate esterifiedpolyhydroxy silsesquioxane; (3) performing grafting reaction: mixing the phosphate esterified polyhydroxy silsesquioxane and a silane coupling agent, and performing hydrolysis to obtain the organic silicon-phosphorus synergistic flame retardant. The preparation method has the following advantages: (1) the silicon and phosphorus are synergistic to resist the flame, so that the flame-retardant effect of the flame retardant can be effectively improved; (2) the flame retardant contains no halogen element, so that no harm is caused to the environment; and (3) while the high flame-retardant efficiency is ensured, the synthetic cost of the flame retardant can be effectively reduced.

The invention discloses a mutant gene of gshF genes of streptococcus agalactiae and application of the mutant gene in building high-yield glutathione engineering bacteria. The mutant gene is gshFM1 or gshFM2 or gshFM3. According to the mutant gene, a glutathione synthetase mutant, pichia pastoris engineering bacteria and saccharomyces cerevisiae gene engineering bacteria are obtained for synthesis of glutathione. The obtained dual-function glutathione synthetase mutant is not affected by feedback inhibition of glutathione and has the characteristic of being high in catalytic efficiency. The glutathione yield of genetically engineering bacteria built through the obtained mutant is high, and a foundation is laid for industrial production and preparation of glutathione.

The invention relates to a carbon material surface loading technology and aims to provide a method of loading titania microflowers on a shaped carbon material. The method comprises the following steps: placing the washed shaped carbon material obliquely and immersing in a hydrothermal reaction liquid and then sonicating for 5-20min; sealing the hydrothermal autoclave and keeping the reaction at 140-180 DEG C for 2-5h; cooling to the room temperature, taking out the carbon material; washing with deionized water for 4 to 8 times, immersing in deionized water for 20min at the room temperature, and then drying for 2h at 120 DEG C and dark conditions; performing heat preservation on the dried carbon material at 450 to 550 DEG C for 0. 5 to 2h, cooling to the room temperature and obtaining the titania microflowers coated carbon material. The titania microflowers prepared by the invention has the advantages that the distribution is dense and uniform, the morphology is complete, under xenon lamp irradiation, a significant photoelectric response exists; the thickness of the titania film can be adjusted by controlling the ratio of ethanol and deionized water in the hydrothermal reaction liquid; hydrothermal method is simple, the cost is low, the energy consumption is low, the film formation is stable and the method is suitable for mass production.

The invention provides a multifunctional Se-enriched biological agent for vegetables. The multifunctional Se-enriched biological agent comprises 0.1-0.5 mg/L of Na2SeO3, 0.1-0.2wt% of glycine, and/or 0.1-0.2wt% of alanine and 0.1-0.5wt% of an EM microbial agent. The multifunctional Se-enriched biological agent effectively promotes selenium absorption and increases the selenium content of the vegetables, so that the standards of selenium-enriched vegetables are met; meanwhile, through a synergistic effect among main components (the glycine or/and the alanine, sucrose and the EM microbial agent) of the multifunctional Se-enriched biological agent, the disease resistance of the vegetables is enhanced and the quality of the vegetables is improved.

The invention relates to a transition layer coating for manufacturing a shell of a precision casting and a preparation method of the transition layer coating. The transition layer coating for manufacturing the shell of the precision casting consists of the following raw materials in part by weight: 10 parts of silica sol, 16-20 parts of zircon powder, 0.015-0.02 part of defoamer and 0.04-0.045 part of wetting agents. The flow cup viscosity value of the transition layer coating is 7-9s. The quality of the prepared shell is stable, the surface of the shell is compact, high-temperature strength is high, the dimensional accuracy of the casting is high, and surface quality of a product is good. Shelling property and fire resistance are good, and the shell is good in thermal conductivity, low in thermal expansion and excellent in thermal vibration stability. Moreover, the adding amount of the wetting agents and the adding amount of the defoamer are improved, and a transition layer has good breathability.

The invention discloses an engineering drawing paper and a manufacturing method thereof. The engineering drawing paper is manufactured by beating separately bleached sulfate needlebush chemical pulp and bleached sulfate broadleaf wood chemical pulp, mixing the pulp and papermaking. The quantity of the engineering drawing paper is 79-81g/m2, ISO brightness is 107-109%, the folding endurance is more than 15 times, the thickness is 104-108 micron, the smoothness degree is longer than 25s, the moisture content is 4.5-5.5%, the water resistance Cobb value is 20-30g/m2, the friction coefficient is less than 0.35, and the longitudinal wet strength is greater than 4N/15mm. The solid ink problem of the engineering drawing paper at the time of printing is solved, the conflict between the fineness and transferring performance of the engineering drawing paper can be solved, and the problem of high cost is avoided.

A system for separating fluids of a fluid mixture including a filter element operatively arranged for enabling a first component of a fluid mixture to flow therethrough while impeding flow of at least one other fluid component of the fluid mixture. An additive is configured to improve a first affinity of the filter element for the first component relative to a second affinity of the filter element for the at least one other fluid component of the fluid mixture. A method of separating fluids is also included.

The invention discloses wear-resisting iron oxide red anticorrosive paint. According to the wear-resisting iron oxide red anticorrosive paint, modified isolated soybean protein meal is added into raw materials by serving as an adhesive, and therefore the cohesiveness and the affinity of the paint with a polymer are improved; nano-silicon dioxide and ultrafine iron oxide red powder are mixed to be uniform and then subjected to organic modification, on one hand, the surface of the iron oxide red powder is organized, the lipophilicity and the compatibility of the paint with organic matter are improved, therefore, the phenomenon that the ultrafine iron oxide red powder is prone to agglomeration is prevented, and the water resistance and the corrosion resistance of the paint are improved, and on the other hand, an inorganic SiO2 network of modified nano-silicon dioxide and a polymer chain form a mutually-crosslinked interpenetrated structure, motion of the polymer molecular chain is inhibited, and the heat resistance of the paint is improved. The prepared paint is good in adhesive force, capable of resisting wearing, water and alkali, long-acting and durable, convenient to construct, simple in preparation method and capable of easily achieving large-scale production.

The present invention discloses humanized anti-epidermal growth factor receptor antibodies, which have favorable binding activity (the binding affinity being 6.13×10⁻¹⁰ mol/L) and are able to inhibit the growth and migration of tumor cells. The present invention also discloses the preparation methods and uses of the antibodies

The invention relates to an asbestos-based laminate suitable for being used as a sealing gasket. The invention also relates to a manufacturing method of the asbestos-based laminate, and an application of the asbestos-based laminate in sealing methods. Compared with asbestos-based products in the prior art, the asbestos-based laminate disclosed in the invention has basically equal sealing and heat insulation performances, and has the advantages of great reduction of the use amount of asbestos, and excellent self-lubrication property and resilience.

The invention provides a novel method for preparing diglyceride. The diglyceride is prepared from the following raw materials in percentage by mass: 33-36 percent of glycerinum, 5-8 percent of monoglyceride and 56-60 percent of grease. The preparation method comprises the following steps: adding the raw materials into a reactor, and adding lipase to perform an enzymatic reaction to obtain the high-purity diglyceride after the reaction is completed. The method is capable of improving the reaction speed and reducing production cost, and has a potential industrial application prospect.

The invention provides an artificial marble flatting agent, which is prepared from the following raw materials: a titanate coupling agent, fatty alcohol-polyoxyethylene ether, simethicone, isopropanol, isooctanol, diethylene glycol and ethylene glycol diacetate. According to the artificial marble flatting agent disclosed by the invention, the amphipathy of the inorganic powder calcium carbonate and organic unsaturated polyester can be obviously enhanced, the viscosity and the surface tension of a resin powder system can be lowered, system workability is improved, and product performance is improved.

The invention provides a non-halogen flame retardant hard polyurethane foam material and a preparation method thereof. The material is composed of a component A and a component B, and the weight ratio of the component A to the component B is 1:(1-1.5), wherein the component A comprises, by weight, 6-20 parts of phenolic resin, 60-80 parts of polyether polyol, 5-10 parts of expansible graphite, 1-4 parts of catalysts, 16-30 parts of compounded flame retardant, 1-3 parts of polysiloxane foam stabilizers and 15-30 parts of foaming agent, the component B is isocyanate, and the compounded flame retardant is made of magnesium hydrate, water glass, an silane coupling agent and nano montmorillonite. The foam material improves the flame retardant property, lowers the influence of the flame retardant on the mechanical property of the foam material and further improves the foaming property.

The present invention provides a single-liquid-type fluorocarbon coating comprising the following components by weight: 40 to 55 parts of a fluorocarbon emulsion, 3 to 6 parts of a diluent, 0.3 to 0.4 part of a wetting agent, 0.2 to 0.7 part of a dispersing agent, 0.1 to 0.6 part of a defoamer, 0.4 to 0.9 part of a thickening agent, 10 to 15 parts of a filler, 15 to 20 parts of a pigment, 20 to 25 parts of water, 1 to 3 parts of nano magnesium oxide and 2 to 4 parts of nano-zinc hydroxide. The present invention also provides a preparation method of the single-liquid-type fluorocarbon coating. The single-liquid-type fluorocarbon coating has good acid and alkali resistance and hardness.