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212 results about "Cellulose methyl" patented technology

Graphene oxide-chitosan-carboxymethyl cellulose composite aerogel and application thereof in adsorption of amaranth

The invention discloses a graphene oxide-chitosan-carboxymethyl cellulose composite aerogel and an application of the graphene oxide-chitosan-carboxymethyl cellulose composite aerogel in adsorption of amaranth. The preparation method comprises the following steps: mixing a carboxymethyl cellulose aqueous solution with a chitosan acetic acid solution, adding gallic acid, stirring until the gallic acid is completely dissolved, adding the graphene oxide dispersion liquid, and stirring until a system forms uniform and stable gel; the gel is firstly subjected to ultralow-temperature freezing and then subjected to freeze drying, and finally the graphene oxide-chitosan-carboxymethyl cellulose composite aerogel is obtained. The aerogel prepared by the method is environment-friendly and stable in pore structure, and is a composite aerogel material with high adsorption capacity and good regeneration performance on anionic dyes. The adsorption capacity of the aerogel to amaranth can reach 125 mg / g, the adsorption rate is still kept at 77% after the aerogel is recycled for 3 times, and the aerogel is suitable for efficient treatment of dye wastewater.
Owner:QILU INST OF TECH

Lightweight unfired ceramsite and preparation method thereof

The invention provides light non-sintered ceramsite and a preparation method thereof, the non-sintered ceramsite is of a core-shell structure, an inner core is expanded perlite, a shell takes granite stone powder and desulfurized gypsum as main raw materials, and an interface modifier is added into the non-sintered ceramsite; the interface modifier comprises the following components in percentage by mass: 3%-8% of a silane coupling agent, 10%-18% of a nano silicon dioxide dispersion liquid, 25%-35% of a polyvinyl alcohol aqueous solution, 1.5%-3% of sodium carboxymethyl cellulose and the balance of deionized water. An interface modifier is added into the unfired ceramsite which takes expanded perlite as an inner core and takes a solid waste mixture such as granite powder and desulfurized gypsum as a shell, and the interface modifier can improve the physical and chemical characteristics of the surface of the expanded perlite and also can promote hydration reaction and interface bonding of shell slurry through a multi-component synergistic effect; the mechanical property and the stability of the unfired ceramsite are obviously improved.
Owner:MACHENG HUBEI UNIV IND TECH RES INST +1

Iron tailings powder-based cementing material for mine full tailings cemented filling, and preparation method and application thereof

The present application belongs to the technical field of underground filling of metal mines, and particularly relates to an iron tailings powder-based cementitious material for mine full tailings cemented filling, a preparation method and application thereof. The geopolymer-based anti-cracking mortar is made of iron tailings ultrafine powder, ore powder, sulphoaluminate clinker, Portland cement clinker, desulfurization gypsum and methyl cellulose ether. The iron tailings powder-based cementitious material can completely replace ordinary Portland cement in full tailings filling and achieve better cementing effect than cement, thereby greatly reducing the consumption of cement and other cementitious materials, lowering the filling cost, reducing carbon emissions and increasing the utilization rate of tailings. The rheological properties, mechanical properties and durability of the full tailings cemented filling material made of the iron tailings powder-based cementitious material can meet the requirements of mine filling, and the material can achieve the effect of expansion and roof contact without adding external additives, thereby solving the shrinkage problem of cement-based filling materials.
Owner:UNIV OF SCI & TECH BEIJING

Sodium carboxymethylcellulose, preparation method thereof and dust suppressant

The invention belongs to the field of cellulose ether. The embodiment of the invention provides sodium carboxymethyl cellulose, a preparation method thereof and a dust suppressant. The method comprises the following steps: mixing cellulose, solid alkali and a solid etherifying agent to obtain a first mixture; adjusting the humidity of the first mixture by using a humidity adjusting medium to obtain flowable wet powder; mechanically activating the wet powder to obtain a second mixture; carrying out heating treatment on the second mixture, so that the second mixture is subjected to an alkalization reaction and an etherification reaction; carrying out neutralization treatment on the substance obtained by the heating treatment to obtain a neutral mixture; and sequentially carrying out dissolution treatment and purification treatment on the neutral mixture to obtain the sodium carboxymethyl cellulose. According to the method disclosed by the embodiment of the invention, a large amount of organic solvents such as isopropanol are not needed, so that the generation of waste liquid is reduced, and the environment-friendly treatment cost and the production safety risk are remarkably reduced.
Owner:NORTHEASTERN UNIV CHINA

Positive electrode for lithium-sulfur battery and lithium-sulfur battery comprising same

The positive electrode for a lithium-sulfur battery according to the present invention contains a predetermined amount of polyacrylic acid, polyacrylamide, carboxymethyl cellulose, and styrene-butadiene rubber as a binder polymer. When used in a lithium-sulfur battery, the positive electrode for a lithium-sulfur battery can ensure high adhesive strength between the positive electrode active material layer and the positive electrode current collector, and sufficient output performance.
Owner:LG ENERGY SOLUTION LTD

A catalytic system for ester exchange reaction of swill-cooked oil

The present application provides a kind of waste oil transesterification reaction catalytic system, belong to biomass refining field.The preparation steps of catalyst include: in the solution containing Ni (NO3) 2 And Fe (NO3) 3 Carboxymethyl cellulose is added, then urea is added, reaction is carried out, and nano-porous NiFe2O4 is obtained, MgCl2 / ZnCl2 Solution and KOH / K2CO3 Solution are added to NiFe2O4 water dispersion, reaction is carried out, solid product is collected, calcination is carried out, and catalyst is obtained.Catalyst is added to waste oil to carry out catalytic reaction.The present application adopts carboxymethyl cellulose to regulate the crystal form, grain size and dispersity of catalyst carrier, and the obtained solid magnetic catalyst can improve the production efficiency of waste oil for preparing biodiesel.The catalyst has high active site, fast reaction rate, mild reaction condition, can reduce reaction energy consumption and production cost.The catalyst also has good magnetic property, is convenient for recovery.The catalyst has good stability, improves the controllability and stability of reaction.
Owner:QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)

Drilling fluid for sandstone heat storage geothermal well and use method of drilling fluid

The invention belongs to the technical field of drilling fluid, and provides drilling fluid for a sandstone heat storage geothermal well and a use method of the drilling fluid. The drilling fluid comprises base slurry, calcium chloride, polyacrylamide, carboxymethyl cellulose, hydrolyzed polyacrylonitrile ammonium salt, an anti-sloughing fluid loss agent and an extreme pressure lubricant. Wherein base slurry, calcium chloride and polyacrylamide are added during drilling, and calcium chloride and polyacrylamide are supplemented in the process of drilling to the position 200 m away from a heat reservoir roof; polyacrylamide, carboxymethyl cellulose, hydrolyzed polyacrylonitrile ammonium salt, an anti-sloughing fluid loss agent and an extreme pressure lubricant are supplemented in the process from the position 200 m away from the thermal reservoir roof to drilling completion. The drilling efficiency is effectively improved, the drilling fluid cost is reduced, and compared with the prior art, the drilling efficiency is improved by 20%, the waste slurry discharge amount is reduced by 30%, and the drilling fluid cost is reduced by 30%.
Owner:THE SECOND HYDROGEOLOGY & ENG GEOLOGY BRIGADE OF SHANDONG PROVINCIAL BUREAU OF GEOLOGICAL EXPLORATION (SHANDONG LUBEI GEOLOGICAL & ENG SURVEY INST)

Chitosan microspheres, a preparation method thereof and application of the chitosan microspheres in the preparation of Baoyuan oral liquid

The application relates to the field of traditional Chinese medicine oral liquid preparations, in particular to a chitosan microsphere and a preparation method thereof and application of the chitosan microsphere in preparation of Baoyuan oral liquid preparations. The chitosan microsphere comprises, in weight parts, 80-120 parts of chitosan, 2-5 parts of an emulsifier and 30-40 parts of an oil phase; the chitosan microsphere is obtained by dissolving in an acid solution and then reacting with the emulsifier and the oil phase. The application adds a clarifying agent, i.e. a mixture of chitosan microspheres with different particle sizes, carries out flocculation adsorption, and adds a stabilizer sodium carboxymethyl cellulose CMC-Na; through the synergistic effect of the two, the quality and safety of the oral liquid are remarkably improved. The colloids after adsorption of the clarifying agent can be more stably dissolved in the medicinal liquid under the synergistic effect of the stabilizer sodium carboxymethyl cellulose, the preparation precipitation problem is solved, and the prepared Baoyuan oral liquid has good stability and immunoregulatory activity.
Owner:HUNAN TIANJIN PHARMA

In-situ liquid gel-forming water-retaining agent, its preparation method and application

The application provides an in-situ liquid gel-forming water-retaining agent and a preparation method and application thereof. The water-retaining agent is composed of A component and B component which are applied in steps. The A component contains an aqueous solution of a natural modified polymer, and the natural modified polymer is selected from one or two of carboxymethyl chitosan, carboxymethyl cellulose or a sodium salt thereof. The B component contains an aqueous solution of a cationic crosslinking agent, and the cationic crosslinking agent is selected from one or more cations of copper nitrate, iron nitrate, zinc nitrate, manganese nitrate, chitosan quaternary ammonium salt, calcium nitrate and magnesium nitrate. The water-retaining agent can realize the integrated functions of slow release of trace elements, water retention, soil improvement and precise nutrition supply. Furthermore, the water-retaining agent is applied to crop growth in combination with the "step-by-step drip irrigation and in-situ gel formation" technology, so that the agronomic characters of crops can be significantly improved.
Owner:XINJIANG AGRI UNIV

Hydrogel composition

ActiveUS12692371B2Polymer scienceCarbamate
Disclosed herein is a hydrogel composition that includes a crosslinked collagen polymer, a carboxymethyl cellulose derivative, an aqueous sodium chloride solution, a humectant, and an antimicrobial agent. The crosslinked collagen polymer has collagen, a hydrophilic polyether, and a dicarbamate group linking the collagen to the hydrophilic polyether. The carboxymethyl cellulose derivative is selected from the group consisting of carboxymethyl cellulose, an alkali metal salt of carboxymethyl cellulose, an ammonium salt of carboxymethyl cellulose, and combinations thereof. The humectant is selected from the group consisting of glycerin, propylene glycol, and a combination thereof. The antimicrobial agent is a combination of glycine betaine and polyhexamethylene biguanide hydrochloride.
Owner:TRONJEN MEDICAL TECH INC

Efficient flame-retardant fire extinguishing agent for rapidly extinguishing lithium battery fire and preparation formula

The invention discloses an efficient flame-retardant fire extinguishing agent for rapidly extinguishing a lithium battery fire and a preparation formula, and relates to the technical field of fire fighting. The fire extinguishing agent is composed of a liquid-phase component and a solid-phase component, wherein the liquid-phase component comprises ethylene glycol, triethanolamine, fluoroalkyl betaine, sodium dodecyl benzene sulfonate, a phosphate flame retardant, an orange peel extracting solution and purified water; the solid-phase component comprises dodecyl sulfate, ammonium phosphate, potassium perchlorate, sodium carboxymethyl cellulose, polyacrylamide, benzotriazole and the like. The method comprises the following steps: drying and activating solid-phase components after graded crushing, and stirring in a nitrogen atmosphere; carrying out segmented treatment on liquid-phase components, and carrying out ultrasonic emulsification on an orange peel extracting solution; and after solid-liquid mixing, carrying out vacuum defoaming, high-speed shearing dispersion and homogenization treatment. According to the lithium battery fire extinguishing agent, component particle sizes with different dissolution rates are matched through graded crushing, nanoscale dispersion is achieved through ultrasonic emulsification, the bubble residual rate is reduced through vacuum defoaming, and the problems that a traditional lithium battery fire extinguishing agent is low in insulativity, low in cooling efficiency and insufficient in flame retardant efficiency are solved.
Owner:HEBEI JICHUAN IND CORP +1

A synthetic device for preparing carboxymethyl cellulose lithium by slurry process

The application discloses a kind of synthetic devices of carboxymethyl cellulose lithium prepared by slurry process, it is related to the technical field of processing device of carboxymethyl cellulose lithium.The outer side of the mixing tank main body is provided with linkage matching structure, the top of linkage matching structure is fixedly connected with a plurality of preliminary feeding structure, the side of the top of mixing tank main body is fixedly connected with feeding groove, preliminary feeding structure includes matching positioning plate, upper extension plate, driven module, driven execution module and material storage pushing module.The application is designed by linkage matching structure and preliminary feeding structure, so that the device is convenient to complete the preparation of raw materials for carboxymethyl cellulose lithium prepared by slurry process, and the material needed is fed according to the use requirement, and through the design of preliminary feeding structure, it is convenient to adjust the angle after pushing during use, which avoids blockage and improves the use convenience and input effect.
Owner:GREEN ENERGY FIBER MATERIAL (CHONGQING) TECH CO LTD

Preparation method of polyaspartic acid-carboxymethyl cellulose hydrogel-stearic acid-urea slow-release fertilizer

The invention relates to the field of slow-release fertilizers, in particular to preparation of a hydrogel slow-release fertilizer. The invention discloses a preparation method of a slow release fertilizer of polyaspartic acid, carboxymethyl cellulose hydrogel, stearic acid and urea. Comprising the following steps: (1) preparing polysuccinimide, (2) preparing a polyaspartic acid gel solution by using the polysuccinimide, and then preparing a polyaspartic acid / carboxymethyl cellulose hydrogel solution by using the polyaspartic acid gel solution; the method further comprises the following steps: (3) preparing stearic acid / urea particles; 4, the polyaspartic acid / carboxymethyl cellulose hydrogel solution and the stearic acid / urea granules are used for preparing and obtaining the polyaspartic acid-carboxymethyl cellulose hydrogel-stearic acid-urea slow-release fertilizer.By means of the method, the slow-release fertilizer with the dual functions of water retention and slow release can be prepared and obtained.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Method for afforestation in desert area

The invention relates to the technical field of desert control, in particular to a method for afforestation in a desert area. By means of methyl cellulose, on one hand, the water retention capacity of modified cellulose is improved, and on the other hand, the binding capacity of the modified cellulose to water and the acting capacity of the modified cellulose to sand grains are improved by means of moisture retention and adhesion of the methyl cellulose. Furthermore, through the compounding effect of the modified cellulose, the biomass particles and the peat, the interaction among the modified sand grains is enhanced, so that the sand grains in a loose state are converted into the modified sand grains with water retention and fertilizer retention capacities. According to the modified sand grains, on one hand, the modified sand grains around the saplings form a wind-erosion-resistant consolidation system, the water holding capacity of the modified sand grains is enhanced while rapid water locking is achieved, and the water consumption in the plant growth period is obviously reduced; on the other hand, it can be guaranteed that the water content of the modified sand grains is stable for a long time, plant root development and the steady state of the growth environment are promoted, and the plant survival rate is increased.
Owner:聂小波 +1

A method for remediation of heavy metal contaminated soil using microbial inoculants

This invention relates to the field of soil remediation technology, specifically disclosing a method for remediating heavy metal-contaminated soil using microbial agents. The invention uses hydroxyapatite as a carrier, utilizing its adsorption properties to load licorice extract onto its surface. To further improve the stability of the licorice extract, a carboxymethyl cellulose (CMC) solution is added. After stirring, mixing, and drying, the excellent film-forming properties of CMC help improve the stability of the licorice extract, while also increasing the specific surface area and adsorption sites of the hydroxyapatite. The introduction of licorice extract and CMC not only enhances the chelating ability of hydroxyapatite for heavy metals but also provides an additional carbon source for microorganisms, promoting their growth and reproduction. The metabolic activity of *Trichoderma solani* and *Bacillus licheniformis* is significantly enhanced, resulting in a substantial increase in remediation efficiency.
Owner:JIANGSU LIRAN ENVIRONMENTAL PROTECTION TECH CO LTD

An oat protein-based edible preservative film and a method of preparing the same

The application discloses an oat protein-based edible preservative film and a preparation method thereof. The edible preservative film is prepared from the following raw materials: oat protein aggregates, carboxymethyl cellulose, water, glycerol and bioactive glass. The preparation method comprises the following steps: oat protein aggregates are added into water and stirred uniformly to obtain a first mixed solution; carboxymethyl cellulose is added into water and stirred uniformly to obtain a second mixed solution; the first mixed solution and the second mixed solution are mixed, then glycerol and copper-doped mesoporous bioactive glass are added in sequence, and stirred for a period of time to obtain a film-forming solution; the film-forming solution is poured into a plane substrate, and then dried to obtain the oat protein-based edible preservative film. The oat protein is modified by heat treatment to obtain oat protein aggregates, the obtained oat protein aggregates are used for film preparation, a composite film is obtained, and the transparency, flexibility and barrier property of the composite film are significantly improved.
Owner:CHINA PHARM UNIV

Solanaceae plant leaf extract, extraction method and application thereof

PendingCN122271452APromote quality recoveryfull sensesBiotechnologyMicrobial agent
This invention belongs to the field of heavy metal removal technology, specifically disclosing an extract from the leaves of a Solanaceae plant, its extraction method, and its application. The extraction method includes the following steps: S1, mixing tomato and pepper leaves, chopping them to obtain a preliminary mixture; S2, mixing a compound microbial agent with the preliminary mixture obtained in S1, fermenting, sterilizing, centrifuging, filtering through a 0.45μm filter membrane, discarding the precipitate, and obtaining a fermented preliminary mixture; S3, concentrating the fermented preliminary mixture obtained in S2 under reduced pressure to obtain a concentrated fermentation broth; S4, adding sodium carboxymethyl cellulose to the concentrated fermentation broth obtained in S3, stirring evenly, and freeze-drying to obtain the Solanaceae plant leaf extract. This Solanaceae plant leaf extract can effectively remove cadmium from aquatic products, aiding in the growth recovery of aquatic products after cadmium stress, and can also effectively maintain the pH value of white clam muscle, reducing lactic acid accumulation and glycogen consumption, and maintaining the freshness of the meat.
Owner:CHINA AGRI UNIV +1

A nano-silicon-carbon composite negative electrode material containing nanofiber carbon and a preparation method thereof

The application relates to a nano-silicon-carbon composite negative material containing nanofiber carbon and a preparation method thereof. High-temperature pitch powder and ethyl cellulose are dissolved in tetrahydrofuran; then nano-silicon powder is added into deionized water and ultrasonically dispersed; carboxymethyl cellulose sodium and graphite powder are added into the dispersion liquid, and ultrasonic stirring is conducted to uniformly mix the carboxymethyl cellulose sodium and the graphite powder, so as to obtain a water dispersion liquid; then the mother liquor containing the high-temperature pitch powder and the ethyl cellulose is injected into the water solution containing the uniformly mixed nano-silicon powder, the graphite powder and the carboxymethyl cellulose sodium, and high-speed stirring is continuously conducted during the injection process; finally, a homogeneous precursor is obtained through spray drying, and high-temperature carbonization is conducted after high-speed fusion. The material can effectively relieve the expansion of nano-particles, the conductivity is not affected by the volume expansion change, and the performance is excellent.
Owner:CHINA NONFERROUS METALS (GUILIN) GEOLOGY AND MINING CO LTD

A bacillus subtilis preparation, its preparation method and application

The application discloses a bacillus subtilis preparation and a preparation method and application thereof, and belongs to the technical field of microbial inoculants. The bacillus subtilis has a preservation number of CGMCC No. 19440, a preservation date of March 2, 2020, and a taxonomic name of Bacillus subtilis. In view of the defects that live bacteria attenuate quickly and mechanical stability is poor when existing microbial inoculants are mixed with coated compound fertilizers, the application prepares a high-spore-rate fermentation liquor through a staged fermentation process, and uses sodium alginate-chitosan-sodium carboxymethyl cellulose-montmorillonite composite wall materials to prepare a microencapsulated microbial inoculant. The application has a live bacteria retention rate of more than 93% when mixed with mineral oil coated compound fertilizers and stored for 60 days, and a mixed damage rate of less than 5%, and can significantly improve soil fertility and increase crop yield by 22.7% to 37.5% when used in combination, and is suitable for industrialized production of compound microbial fertilizers.
Owner:HENAN JINBAIHE BIOTECH CO LTD

A bone repair composition and method of making the same

The present application relates to a kind of bone repair compositions and its preparation method, belong to biological medicine technical field, pharmaceutical composition includes acid anhydride bovine beta-lactoglobulin peptide, casein phosphopeptide, yak bone peptide, loquat leaf extract, pterostilbene, honeysuckle chlorogenic acid and cyperus rotundus extract;Acid anhydride bovine beta-lactoglobulin peptide is prepared using special enzymolysis method.Acid anhydride bovine beta-lactoglobulin peptide, casein phosphopeptide and yak bone peptide are loaded using carboxymethyl chitosan-hydroxyapatite composite microspheres, then using sodium alginate-sodium carboxymethyl cellulose containing loquat leaf extract, pterostilbene, honeysuckle chlorogenic acid and cyperus rotundus extract one coating, then using sodium alginate-sodium carboxymethyl cellulose secondary coating.The present application develops high-efficiency pharmaceutical combination component, using polymer material to coat drug to form sustained-release system, improve bioavailability, using granular carrier to increase the stability and solubility of drug, promote intestinal absorption, improve bone repair process.
Owner:HUBEI SUIZHOU SHUANGXING BIOLOGICAL SCI & TECH CO L

A water-based binder based on coordination cross-linking of polyvalent metal ions, and a preparation method and application thereof

The present application relates to the technical field of binder, and particularly relates to a water-based binder based on coordination cross-linking of polyvalent metal ions and a preparation method and application thereof.A preparation method of a water-based binder based on coordination cross-linking of polyvalent metal ions, specifically comprising the following steps: S1, dissolving carboxymethyl cellulose sodium in water, heating and stirring to form a carboxymethyl cellulose sodium aqueous solution; S2, dissolving a metal ion compound in deionized water to obtain a metal ion compound aqueous solution; the metal ion includes divalent metal ions and trivalent metal ions; S3, slowly adding the metal ion compound aqueous solution to the carboxymethyl cellulose sodium aqueous solution in a certain amount, continuously heating and stirring for a period of time, and obtaining the water-based binder.The mechanical property of the water-based binder is obviously improved, and the battery has better rate and more stable cycle.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Carboxymethyl cellulose-carboxymethyl chitosan composite gel as well as preparation method and application thereof in injection type soft tissue filling agent

The invention belongs to the field of biomedical materials, also belongs to the field of medical cosmetology, and particularly relates to a composite gel carrier material for loading an injection type soft tissue filler as well as preparation and application of the composite gel carrier material. The composite gel is prepared from carboxymethyl cellulose and carboxymethyl chitosan under the physical crosslinking action of citric acid, the carboxymethyl cellulose accounts for 2-4% of the total mass, the carboxymethyl chitosan accounts for 0-4% of the total mass and is not equal to 0, the citric acid accounts for 0.1-0.3% of the total mass, and the balance is water. Compared with a carboxymethyl cellulose gel carrier traditionally used in an injection type soft tissue filling material, the composite gel can support and uniformly load the polycaprolactone microspheres, on the premise that the needle passing performance is not affected, the mechanical supporting force of the gel is improved, the degradation speed is slowed down, the filling time of a polycaprolactone microsphere filling agent is prolonged, and the filling efficiency of the polycaprolactone microsphere filling agent is improved. And the high inflammatory reaction and the falling period of the filling effect caused by poor supporting force and rapid degradation of the carrier are effectively avoided.
Owner:SHANXI MEDICAL UNIV

Bio-based conductive hydrogel as well as preparation method and application thereof

The invention belongs to the technical field of flexible electronic materials, and particularly relates to bio-based conductive hydrogel as well as a preparation method and application thereof. The preparation method of the bio-based conductive hydrogel provided by the invention comprises the following steps: soaking gelatin-sodium carboxymethyl cellulose hydrogel in a metal salt solution to obtain the bio-based conductive hydrogel, the metal salt solution comprises metal salt and a water-glycerol mixed solution. According to the invention, metal salt and glycerol are introduced into gelatin-sodium carboxymethyl cellulose hydrogel, so that the prepared bio-based conductive hydrogel has good environmental stability, conductivity and sensitive humidity responsiveness.
Owner:QINGDAO YUANTONG MEDICAL TECHNOLOGY CO LTD

Preparation method of graphene phase change composite material

The invention discloses a preparation method of a graphene phase-change composite material, and relates to the field of graphene materials, the graphene phase-change composite material comprises the following components in percentage by mass: 80.0%-97.0% of a paraffin base material, 1.0%-5.0% of modified graphene, 2.0%-8.0% of sodium carboxymethyl cellulose, 0.5%-5.0% of a nucleating agent and 0.5%-2.0% of a compound stabilizer; according to the preparation method of the graphene phase-change composite material, a traditional organic phase-change material paraffin is used as a base material, graphene, sodium carboxymethyl cellulose, a nucleating agent, a stabilizer and other additives are mixed in a certain proportion, the melting point and freezing point of the paraffin base material are improved, and then the heat conductivity coefficient, the supercooling degree and the heat stability of the phase-change material are adjusted; the thermophysical property of the phase-change material is improved, and the matching property of the phase-change material with different use scenes in various fields is met.
Owner:SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING

A preparation method of a semi-interpenetrating network hydrogel based on amino-succinimide ring-opening reaction

The application discloses a preparation method of a semi-interpenetrating network hydrogel based on an amino-succinimide ring-opening reaction, which comprises the following steps: firstly, a hydrophilic compound containing amino groups, such as trishydroxymethylaminomethane, is used to modify polysuccinimide to obtain water-soluble polysuccinimide polymer; N-vinylcaprolactam and 3-mercaptopropionic acid are reacted to obtain poly-N-vinylcaprolactam polymer with terminal carboxyl groups; and the polymer is used to graft hydroxypropyl methyl cellulose to obtain macromolecular hydroxypropyl methyl cellulose derivative. The water-soluble polysuccinimide, the polymer containing amino groups and the hydroxypropyl methyl cellulose derivative are dissolved in water, and the amino-succinimide ring-opening reaction is utilized to obtain the hydrogel; the hydrogel is soaked in water to remove uncrosslinked components; and after drying, the semi-interpenetrating network hydrogel is obtained. The preparation process is simple, the conditions are mild, and the reaction speed is fast; and the prepared hydrogel has pH / temperature sensitivity and can be used in many fields such as tissue engineering, drug release, water treatment and the like.
Owner:HENAN UNIVERSITY OF TECHNOLOGY

Colorful plaque crack glaze ceramic and preparation method thereof

The invention relates to the field of ceramics, in particular to colored plaque crack glaze ceramic and a preparation method thereof.The ceramic comprises a green body, ground glaze and transparent cover glaze, the green body is covered with the ground glaze and the transparent cover glaze in sequence, and colored plaque particles are embedded into the ground glaze; comprising the following components: 30-40 parts of feldspar, 8-10 parts of quartz, 12-14 parts of kaolin, 5-8 parts of calcium carbonate, 4-5 parts of water glass and 3-4 parts of sodium carboxymethyl cellulose. The colorful patches are bottomed by black, the colorful patches are mixed with multicolor spots, and the water absorption material absorbs water around the ground coat in the drying process, so that micro-cracks are formed around the colorful patch particles, and a unique artistic effect is achieved; the sodium carboxymethyl cellulose can improve the viscosity of the glaze, so that thick glaze can be formed by glazing for many times, and the colorful plaque particles in the cover glaze can be better fused into the ground glaze and the transparent cover glaze.
Owner:DEHUA XINHUA CERAMIC & PORCELAIN CO LTD

A hypoglycemic and hypolipidemic traditional Chinese medicine composition, a preparation method and application thereof

The application relates to the technical field of traditional Chinese medicine preparation, and discloses a preparation method of a traditional Chinese medicine composition for reducing blood sugar and blood fat, which comprises the following steps: raw material preparation, selecting dried mature zanthoxylum bungeanum pericarps as main medicine, ensuring that the raw material is fresh and free of impurities, and preparing auxiliary material sodium carboxymethyl cellulose; zanthoxylum bungeanum crushing and sieving, crushing the dried zanthoxylum bungeanum pericarps by using a crusher to obtain fine and uniform zanthoxylum bungeanum powder; auxiliary material preparation, preparing a 0.3% sodium carboxymethyl cellulose solution as an excipient for mixing with the zanthoxylum bungeanum powder, so as to improve the formability and stability of the medicine; mixing and homogenization, mixing the sieved zanthoxylum bungeanum powder with the 0.3% sodium carboxymethyl cellulose solution under the condition of heating to 50-100 DEG C. The preparation method of the traditional Chinese medicine composition for reducing blood sugar and blood fat aims to prepare a traditional Chinese medicine composition containing zanthoxylum bungeanum, and the composition has a new use of reducing blood sugar and blood fat.
Owner:BEIJING UNIV OF CHINESE MEDICINE

High-internal-phase tea oil emulsion or lutein-loaded tea oil emulsion and preparation method thereof

The invention discloses a high-internal-phase tea oil emulsion or lutein-loaded tea oil emulsion and a preparation method thereof. The method comprises the following steps: (1) preparing a soybean protein isolate-carboxymethyl cellulose conjugate; and (2) preparation of a high internal phase tea oil emulsion or a lutein-loaded tea oil emulsion: pumping the oil phase tea oil or the tea oil in which the lutein is dissolved into the soybean protein isolate-carboxymethyl cellulose conjugate solution. The safe and environment-friendly natural biomacromolecule soy isolate protein and carboxymethyl cellulose are prepared into a conjugate which is used as an emulsifier for preparing the high-internal-phase tea oil emulsion, so that the food safety risk caused by chemical synthesis of the emulsifier is avoided, and the emulsification stability of the high-internal-phase tea oil emulsion is improved; the grafting degree of the reaction product soybean protein isolate-carboxymethyl cellulose is improved by optimizing Maillard reaction conditions; the lutein is loaded by the high-internal-phase tea oil emulsion, so that the stability of the lutein is remarkably improved, and the lutein can be effectively prevented from being oxidized and degraded in environments of high temperature, oxygen, illumination and the like.
Owner:SERICULTURAL &AGRI FOOD RESEARCH INSTITUTE GUANGDONG ACADEMY OF AGRICULTURAL SCIENCES

A sodium carboxymethyl cellulose powder anti-caking mixer

The utility model discloses a kind of sodium carboxymethyl cellulose powder anti-caking mixers, it is related to mixing machine technical field, a kind of sodium carboxymethyl cellulose powder anti-caking mixers, including mixing box, bracket and drum shell, the top of the mixing box is fixedly installed with shell, the top of the shell is fixedly installed with motor one, the output end of the motor one is fixedly connected with central shaft, which is penetrated through the upper end of shell, the outer surface of the central shaft is equipped with spiral blade, the outer surface of the central shaft is fixedly installed with stirring blade, which is located the downside of spiral blade, the bottom of the mixing box is connected with discharge gate, the lower portion of screen is equipped with screen dismounting mechanism, the bottom of the mixing box is fixedly installed with motor two, reverse paddle type bottom stirring mechanism is rotated by motor two drive, the direction of rotation is contrary to upper stirring blade, has better cleaning effect to caking, powder is handled by air jet pipe, prevent material from caking in rolling process.
Owner:DAYINGXING JUYAO NEW MATERIAL TECH CO LTD

Aerogel GCP composite electrode material, preparation method thereof and application of aerogel GCP composite electrode material in electro-adsorption recovery of rhenium

The invention discloses an aerogel GCP composite electrode material, a preparation method thereof and application of the aerogel GCP composite electrode material in electro-adsorption recovery of rhenium. The composite electrode material is an aerogel GCP composite electrode material formed by compounding ginger carboxymethyl cellulose GCNF and polyaniline PANI. According to the preparation method, the natural structure of ginger cellulose and the conductivity and doping property of polyaniline are fully utilized, supramolecular compounding is carried out through hydrogen-bond interaction, then freeze drying is carried out, the graded porous conductive aerogel (GCP) with excellent electrochemical properties and adsorption performance is prepared, and the graded porous conductive aerogel has high adsorption capacity and higher adsorption rate on rhenium ions. And by combining an electrochemical technology, the performance of electric enhancement Re (VII) capture is researched, and the adsorption mechanism and basic theoretical research of electrochemical Re (VII) adsorption are enriched.
Owner:LIAONING UNIVERSITY