136 results about "Chemical combination" patented technology

Provided are methods and composition for treating skin barrier functions and associated disorders. Formulated compositions may be applied on human skin to maintain a desired skin surface pH over an extended period of time without irritating the skin. Maintaining the desired surface pH aids in treatment of eczema, in addition to other skin conditions.

The invention relates to the technical field of papermaking, and particularly provides label release paper and a preparation method thereof.The label release paper sequentially comprises a release layer, a bottom coating layer and a base material paper layer from top to bottom, and the release layer comprises polydimethylsiloxane; the bottom coating layer comprises an organic silane coupling agent; the base material paper layer sequentially comprises a surface layer, a modified paper layer and a bottom layer from bottom to top; wherein the surface layer and the bottom layer are both glassine paper; the density of the glassine paper of the surface layer is 1.15-1.20 g / cm < 3 >; and the density of the glassine paper at the bottom layer is 1.05-1.10 g / cm < 3 >. Polydimethylsiloxane is selected as the release layer, the release force of the adhesive can be remarkably reduced due to the fact that polydimethylsiloxane has ultralow surface energy, and the crosslinked polydimethylsiloxane layer is high in chemical inertness, low in heat resistance and moisture migration resistance, not prone to migration after being stored for a long time and easy to form chemical combination with the bottom coating layer, so that the adhesive force is improved.

The invention discloses a proportioning optimization method for efficiently balancing a chemical oil displacement system. The proportioning optimization method comprises the following steps: S1, collecting and sorting experiment and field data of the existing chemical oil displacement system; the oil displacement effect can be effectively improved by continuously optimizing the ratio of the chemical agents through experiments and numerical simulation, so that the recovery efficiency of an oil field is improved, the oil-water interface characteristics can be improved, the fluid viscosity can be reduced, the oil fluidity can be improved through the reasonable ratio of the chemical agents, and by analyzing the cost benefits of different ratios, the oil displacement effect can be effectively improved. The chemical agent combination with higher economical efficiency can be selected, the expenditure in the chemical oil displacement process is reduced, the oil displacement effect and cost are comprehensively considered, the resource utilization efficiency of the chemical oil displacement system is improved by optimizing the proportion, and it can be ensured that the selected proportion is not only theoretically effective but also theoretically effective through laboratory verification and on-site small-scale tests. And the method also has practical significance in practical application.

The invention relates to the technical field of tread rubber, and discloses high-performance tire tread rubber based on a synergistic system and a preparation method thereof.The method comprises the following steps of first-stage mixing, second-stage mixing, third-stage mixing, final mixing and vulcanization molding. By adopting a composite vulcanization system composed of dicumyl peroxide and sulfur and cooperating with zinc methacrylate as a functional auxiliary agent, a dual synergistic cross-linked structure composed of a free radical cross-linked network and an ionic cross-linked network is formed in the vulcanization process, so that the uniformity and stability of the cross-linked network structure of the tread rubber can be effectively improved, and the service life of the tread rubber is prolonged. The reasonable regulation and control of the crosslinking density of the tread rubber in the vulcanization process are ensured, the problem that a traditional single vulcanization system cannot give consideration to the wear resistance and the dynamic heat generation performance is solved, the comprehensive mechanical property and the dynamic use performance of the tread rubber are further improved, and firm chemical combination between the reinforcing filler and rubber molecules is ensured.

The present invention pertains to the field of pharmaceutical technology. Specifically, the present invention relates to a zinc risedronate micro / nano adjuvant with sustained-release function formed by mineralization of zinc ions and risedronic acid as main components and its use as a vaccine adjuvant. The present invention also relates to a method for preparing zinc risedronate micro / nano adjuvant. The present invention also relates to a chemical composition, vaccine adjuvant and vaccine composition comprising zinc risedronate micro / nano adjuvant. The present invention also relates to a use of zinc risedronate micro / nano adjuvant as a vaccine adjuvant.

A comprehensive utilization method of beneficiation-metallurgy-chemical combination for germanium-rich lignite includes the following steps: 1) germanium-rich lignite sizing and grinding, 2) catalytic pre-oxidation, 3) nitric acid leaching, and 4) recycling and enrichment of germanium solution. The high effective extraction of germanium from the germanium-rich lignite was achieved via a combination of mineral beneficiation, hydrometallurgy, and chemical processing. Meanwhile, a high yield and high degree of depolymerization humic acid product was produced as byproducts. This method could not only effectively avoid high carbon emission and organic resource waste during conventional germanium-rich lignite pyrometallurgical processing, but also could produce humic acid as quality raw materials for metallurgical and agricultural industries, which has advantages of less environmental pollution, high extraction efficiency, and low comprehensive costs.

A chemical composition for controlling odor and to a method of using the chemical composition to impart an odor control treatment to an article, more particularly to a textile material or a building or construction material. The chemical composition comprises a metal compound selected from the group consisting of a metal oxide, a metal hydroxide, and a combination thereof and a sulfo polyester. Methods of making and of using are provided.

The present application relates to the technical field of biomedical materials, and discloses a biological activity and biocompatibility surface treatment method for dentures and implants, which comprises the following steps: a) performing surface pretreatment on the base body of the denture or implant; b) applying a composite coating containing hydroxyapatite particles and biocompatible resin adhesive on the surface of the pretreated base body; c) performing low-temperature thermal curing on the composite coating to form a composite coating layer; and d) performing precision polishing on the surface of the cured composite coating layer to selectively remove part of the resin adhesive on the surface. Through mechanical locking of the base body surface and chemical combination of the interface inside the coating, a composite coating layer which is firmly combined with the base body and chemically stable is obtained; meanwhile, through low-temperature curing and surface activation treatment, the hydroxyapatite is exposed on the surface of the coating layer while the biological activity of the hydroxyapatite is retained, so that the coating layer is endowed with effective biological functions.

The disclosure relates to a composition, having a liquid continuous phase, a first agrochemical active ingredient in the liquid continuous phase, a capsule containing a second agrochemical active ingredient, the capsule dispersed within the liquid continuous phase and configured to create a physical barrier between the first agrochemical active ingredient and the second agrochemical active ingredient, and a buffer configured to maintain a pH below 9, and where the solubility of the first agrochemical active ingredient in the second agrochemical active ingredient is between 1% and 10% w / w at room temperature. The disclosure further provides methods of making and using such compositions.

The application belongs to the technical field of cutting oil, and specifically provides a kind of composite cutting oil and a preparation method thereof.A kind of composite cutting oil uses coconut oil, mineral oil, poly-alpha olefin as mixed base oil, adds specific amount of rust preventive, polyethylene glycol, nano molybdenum disulfide, antioxidant, dispersant and composite additive obtained by chemical combination of carboxylated multi-walled carbon nanotube surface and thiophosphate amine salt, etc., through the synergistic effect of multiple components, the prepared cutting oil has excellent lubricity, extreme pressure and wear resistance, and is suitable for severe extreme pressure cutting environment.

The application discloses a kind of based on hydration calcium silicate and polycrystalline fiber composite board and preparation method, belong to inorganic fireproof heat insulation board technical field. Including board body, the board body is by following component weight parts constitutes: calcium source 25-45 parts, silicon source 30-55 parts, polycrystalline fiber 5-25 parts, interface modifier 0.5-3 parts, dispersing agent 0.1-1 part, foam stabilizer 0.1-0.5 parts, water 150-300 parts;The calcium source and silicon source hydrothermal reaction generate hydration calcium silicate crystal, the hydration calcium silicate crystal is mutually interwoven and forms porous matrix skeleton, the polycrystalline fiber disperses in the porous matrix skeleton, the hydration calcium silicate crystal in-situ growth on polycrystalline fiber surface, and forms chemical combination layer with polycrystalline fiber.The based on hydration calcium silicate and polycrystalline fiber composite board and preparation method of the application, the prepared board has excellent fireproof heat insulation performance, while having good mechanical toughness, impact resistance and high temperature long-term stability.

The invention discloses a self-healing interface binder and a preparation method thereof, and belongs to the technical field of binder preparation. The adhesive is prepared from 90 to 110 parts of water, 8 to 12 parts of absolute ethyl alcohol, 50 to 70 parts of cement, 20 to 30 parts of mineral admixture, 15 to 25 parts of polymerized emulsion, 3 to 7 parts of silane coupling agent, 10 to 15 parts of nano silicon dioxide, 5 to 12 parts of unsaturated amide, 8 to 12 parts of unsaturated acid, 4 to 7 parts of biogel, 5 to 8 parts of thixotropic agent, 3 to 6 parts of dispersing agent and 3 to 6 parts of initiator. The mineral admixture comprises silicon powder and rice hull powder in a mass ratio of 3: 7, the polymerized emulsion is vinyl acetate, the silane coupling agent is KH570, the unsaturated amide is acrylamide, and the unsaturated acid is acrylic acid. According to the interface binder prepared by the preparation method disclosed by the invention, through physical permeation and chemical combination, the bonding strength with concrete can be remarkably improved, and the problems of hollowing and cracking are reduced; in addition, a compact protective layer can be formed on the surface of the interface binder, air and moisture are effectively prevented from invading, and the durability of the concrete is improved.

To provide an injection chemical composition that can achieve both curability in water and foaming and curability in non-water environments, even after being exposed to high temperature and high humidity environments. [Solution] An injection solution composition comprising a first agent (A) and a second agent (B), wherein the first agent (A) comprises an aqueous solution of sodium silicate (A-1), an organic polyol (A-2), and a tertiary amine catalyst (A-3), and the second agent (B) comprises an organic polyisocyanate containing a mixture of diphenylmethane diisocyanate and polymethylene polyphenyl polyisocyanate having 3 or more isocyanate functional groups (B-1), or a reaction product (B-1') of an active hydrogen group-containing compound and a mixture (B-1), at least one acid component (B-2) selected from the group consisting of phosphate monoesters and phosphate diesters, and at least one hydrolyzable component (B-3) selected from the group consisting of orthoester compounds and acetal compounds.

The present application relates to sewage treatment moss cleaning technical field, disclose a kind of sedimentation tank moss cleaning method, comprising the following steps: S1, pretreatment moss, by physical and chemical methods, moss is converted into state convenient to remove;S2, spray treatment, at temperature range is 20 ℃ to 30 ℃, using the water containing sodium hypochlorite is sprayed to moss;S3, ultraviolet irradiation, to the first moss obtained ultraviolet irradiation;S4, inhibit the growth of moss, to the second moss is post-processed to inhibit its growth;S5, clean waste, moss residues, cleaning agent and other waste generated in the cleaning process are cleaned in time, avoid the influence of residue on water quality, and prevent moss from growing again again.By physical and chemical combination mode, first, the loose moss in sedimentation tank is effectively removed, then the solution containing sodium hypochlorite is used to spray the moss, to ensure that each moss patch is evenly contacted, to achieve the ideal chemical cleaning effect.

The invention discloses an epoxy resin adhesive with high bio-based content and intrinsic flame retardance and a preparation method, and particularly relates to the technical field of epoxy resin adhesives, and the epoxy resin adhesive is prepared by mixing and curing a component A and a component B according to a mass ratio of 100: 30-100: 45. According to the invention, the flame-retardant property and the bio-based property are deeply combined from the molecular level, so that the product has a stable and lasting flame-retardant effect while the high bio-based ratio is ensured, the traditional cognition that the flame-retardant property is necessarily sacrificed for increasing the bio-based content is thoroughly changed, the synergistic problem of high bio-based property and high flame retardance is broken through, the molecular level performance fusion is realized, and the flame-retardant property of the product is improved. The material is endowed with permanent intrinsic flame retardance, the problems of migration and failure of a small-molecule flame retardant are avoided, stable chemical bonding is formed between flame-retardant components and an adhesive matrix by virtue of an intrinsic flame-retardant mechanism, the problems of migration and precipitation of a traditional additive type flame retardant are completely eradicated, and performance failure and environmental hidden dangers caused by falling of the flame retardant are avoided.

The application discloses a kerosene gel propellant and a preparation method thereof, and belongs to the technical field of propellants. The propellant provided by the application comprises the following components in mass ratio: kerosene 37wt.%-68wt.%, modified boron 30wt.%-60wt.%, and gelling agent 2wt.%-5wt.%. The modified boron is halogen alkyl silane functionalized boron obtained by chemical combination of halogen alkyl silane and boron, and the halogen alkyl silane functionalized boron comprises a -B-O-Si- framework. The stable and controllable coating layer is obtained on the surface of boron particles by modifying the boron through halogen alkyl silane functionalization, and the higher content of boron particles is stabilized in kerosene. In addition, the high active halogen free radicals can be generated in the combustion process, the ignition and combustion of boron are accelerated, and the carbon deposition effect of kerosene hydrocarbons is reduced. The propellant has higher stability, excellent ignition performance and higher combustion efficiency.

A ternary hydraulic binder composition including the mineralogical compound C4A3$ (ye'elimite) and a member selected from the group consisting of gypsum, calcium sulfate hemihydrate, anhydrite and mixtures thereof (collectively named C$Hx with x being a rational number from 0 to 2), and optionally C2S (belite), including an added content of the mineralogical compound C12A7 (dodecacalcium heptaaluminate). Moreover, it suggests a process for the manufacture thereof, a process for the manufacture of a construction chemical composition including water, and the use of the ternary composition in construction chemical compositions including knifing fillers, screeds, and repair mortars, tile adhesives, tiling grouts, plasters, base coats and sealings.

The present invention is directed to methods for detecting a melanoma, methods for determining whether a melanoma is stable or progressive, methods for evaluating the extent of surgery resection in a subject having a melanoma, and methods for determining a response by a subject having a melanoma to a therapy.

The invention discloses a synthesis method of a fullerene nano material with glycolipid metabolism regulation capability, and belongs to the technical field of material science and biomedical engineering. The fullerene and the metformin are combined through chemical bonds, the strong oxidation resistance of the fullerene and the hypoglycemic effect of the metformin are exerted at the same time, the synergistic treatment effect is formed, and the drug composition is superior to a single drug; active oxygen in cells can be efficiently removed, oxidative stress is effectively relieved, and the functions of pancreatic beta cells are protected; through structural modification, the problem of low bioavailability caused by hydrophobicity of fullerene and hydrophilicity of metformin is solved, and the solubility and absorption efficiency of the medicine are improved; in conclusion, through chemical combination of the fullerene and the metformin, a dual-mechanism synergistic effect of oxidation resistance and blood sugar reduction is achieved, the treatment effect is remarkably improved, meanwhile, good safety and biocompatibility are achieved, and important application value is achieved in the field of treatment of the type II diabetes mellitus.

The invention discloses a modified polyester film for hot-pressing lamination of an EVA (Ethylene Vinyl Acetate) adhesive film and a preparation method of the modified polyester film, belongs to the technical field of high polymer materials, and aims to solve the problem of insufficient adhesion between a common PET (Polyethylene Terephthalate) film and the EVA adhesive film. The film is prepared from modified polyester master batches through the processes of melt extrusion, shock chilling sheet casting, two-way stretching and heat setting, and the modified polyester master batches are prepared from 80-95 parts of common polyester resin, 5-12 parts of hydroxyl-terminated hyperbranched polyester resin, 1-3 parts of polymeric aliphatic carbodiimide and 0.5-5 parts of a compound containing a vinyl acetate structure through melt blending granulation. Through the chemical bonding effect of polymerized aliphatic carbodiimide, hydroxyl-terminated hyperbranched polyester and a compound containing a vinyl acetate structure are connected into a PET main chain, the interface bonding performance is improved by means of the synergistic effect of chemical bonding and physical compatibility, and meanwhile good damp-heat aging resistance is achieved.

The invention discloses a COF-TiO2 covalent compound photocatalyst as well as a preparation method and application thereof, and belongs to the field of photocatalysts. According to the invention, an azide functional group is introduced to the surface of TiO2, and 1, 3-dipolar cycloaddition reaction catalyzed by Cu (I) is utilized to form covalent triazole connection with alkynyl in a COF skeleton, so that firm chemical combination of COF and TiO2 is realized, and the problem that TiO2 falls off in a photocatalytic cycle process is avoided; and the photocatalyst simultaneously retains an ordered layered structure of COF and an anatase phase structure of TiO2.

An agrochemical composition comprising component (1) and a mixture of at least two components selected from component (2), component (3) or a combination of component (2) and component (3) wherein component (1) is at least one compound of formula (I) # imgabs0 wherein R1, R2, R3, R4, R5, R6, R7 and n are defined in the specification; component (2) is at least one fungicide selected from the group consisting of: azoxystrobin, metominostrobin, picoxystrobin, trifluroxystrobin, metetropro, benzsovin diflupyr, bixafen, fluindazole, fluxafloxam, infringastatin, difenoconazol, and cyroconazol, and the component (2) is at least one fungicide selected from the group consisting of: azoxystrobin, metominostrobin, picoxystrobin, trifluroxystrobin, metetropro, benzsovin, bixafen, fluindazole, fluxafloxam, fluxafloxam, fluxafloxam, fluxafloxam, and cyroconazol And component (3) comprises at least one fungicide, different from component (1) and component (2), selected from the group consisting of (A) an inhibitor of the biosynthesis of sterols, (B) an inhibitor of the respiratory chain complex I (complex I) or complex II (complex II), (C) an inhibitor of the respiratory chain complex III (complex III), (D) a compound which may have a multi-site action, or (E) an inhibitor of histone deacetylase. The invention also relates to formulations comprising the compositions of the invention and to methods of controlling phytopathogenic fungi of plants using the agrochemical compositions of the invention.

A system and method for eradicating pathogens disposed on a surface combines a chemical composition and the use of a UV light source. The system includes a reservoir for holding the chemical composition. A dispenser for dispensing the chemical composition in the direction of the surface is included to direct the chemical composition toward the surface. A UV light source is cooperable with at least one of the reservoir and the dispenser for irradiating the surface that the chemical composition has been applied. The UV light enhances the eradication properties of the chemical composition.

The application provides a wind power blade regenerated composite material and a preparation method and application thereof. The method provided by the application is characterized in that: first, retired wind power blade particles are mixed with a compounded solvent and then subjected to soaking treatment, so as to dissolve low-molecular-weight resins and imperfect three-dimensional network crosslinking structures in the retired wind power blade particles by using the compounded solvent; then, the surface of bare glass fibers is modified by using a gamma-glycidoxypropyltrimethoxysilane solution, so that the glass fibers have epoxy group active sites; then, an epoxy resin system is infiltrated and filled into the premixing material which has both pores and epoxy group active sites; then, hot pressing is performed; the pores of the three-dimensional network structure are physically combined with the epoxy resin, and the network structure is anchored together; the surface-modified glass fibers are chemically combined with the epoxy resin; and through the physical and chemical combination, the wind power blade regenerated composite material has excellent mechanical properties.

The present invention relates to a synergistic combination of a photoprotective agent and a thermal protective agent in an agrochemical composition, to a corresponding agrochemical liquid composition, and to the use of a synergistic combination of a thermal protective agent and a photoprotective agent for stabilizing an agrochemical composition comprising at least one pesticidal agent.

A powdered composition for oral application of therapeutic agents includes a base material, at least one therapeutic agent, and a crosslinker. The composition is formed as a homogenous powder. An application device is also disclosed.

The invention relates to the technical field of snow-melting pad production, in particular to a manufacturing method of a rubber snow-melting pad, which comprises the following steps: wiring and weaving, preparing a rubber sheet, laminating, vulcanizing and forming by adopting gas stripping model vulcanizing equipment, and demolding. The prepared rubber snow melting pad has high tensile strength and high tear resistance, can effectively bear repeated loads of high stress points of decks, stairs and the like, and is not easy to crack; the three-layer laminated structure is combined with an accurately controlled vulcanization process, so that firm physical and chemical combination between the heating layer and the polyurethane base material is ensured, and the heat conduction efficiency is high; when the gas demolding vulcanization equipment is used for vulcanization treatment, a plurality of forming holes communicated with the inner cavity are uniformly distributed in the bottom wall of the cavity of the lower hot mold, and the anti-skid convex points are uniformly, synchronously and upwards pushed by utilizing gas pressure, so that the uniform distribution of demolding force is realized; cracking of roots of the anti-skid convex points, material shortage and overall buckling deformation of the pad body caused by uneven distribution of ejection force are avoided, and the demolding integrity of products and the yield of finished products are improved.

The present application relates to the technical field of bridge and tunnel seamless splicing, and particularly relates to a super-tough cement seamless splicing structure and a construction method. Technical points of the present application are as follows: the super-tough cement seamless splicing structure is arranged in a road surface cushion structure, and is a seamless splicing structure composed of a base layer, a road surface cushion, a super-tough cement structure, a paving surface layer and a filling sealing strip; rough glue surface splicing is adopted, concave-convex rough surfaces and an interface agent are used, a physical-chemical combination mode is adopted to strengthen the connection, and a wedge-shaped clamping groove limiting and fixing and staggered structure are arranged; the super-tough cement splicing material comprises dry mixture, nano active powder, composite fiber, additive and water; the high-strength interface agent comprises two components of epoxy resin and curing agent. The super-tough cement seamless splicing structure provided by the present application is suitable for bridge and tunnel engineering construction, can meet the demand of long-life seamless pavement, and provides reliable guarantee for driving safety and comfort performance.

The utility model discloses electroplating wastewater multistage purification recycling equipment which comprises a support and a stirring barrel, the stirring barrel is installed in the support, a filter shell is installed at the top end of the stirring barrel, a storage box is installed on the side wall of the support, a top cover is installed at the top end of the storage box, the top cover is movably connected with the filter shell, and the filter shell is installed on the side wall of the support. And a first filter is arranged outside the bracket. According to the wastewater multi-stage purification recycling equipment, convenient multi-stage purification is realized, filtered large-particle pollutants can be conveniently scraped, swept and discharged, the convenience for cleaning the filtered pollutants is improved, the electroplating wastewater can be conveniently and fully mixed and treated by adding chemicals, the electroplating wastewater can be conveniently treated by a physical and chemical combination method, and the electroplating wastewater can be conveniently recycled. And the purification quality and efficiency of the wastewater multi-stage purification recycling equipment are improved.