217 results about "Potential market" patented technology

The invention relates to an antibacterial and antioxidant edible gelatin composite membrane and a preparation method thereof. The method comprises the steps of firstly carrying out blending, heating and ultrasonic treatment on curcumin and a solubilizer; mixing with gelatin and a plasticizer solution evenly, adjusting the pH value of a mixed solution to be 7-11, adding a cross-linking agent solution, mixing evenly at a room temperature and then injecting into a mold; and finally drying to prepare the gelatin composite membrane. Through adding the natural active material curcumin, the gelatin composite membrane is endowed with antibacterial and antioxidant properties, a gelatin material can be prompted to display different colors in different pH value environments through successful instruction of the curcumin, and environmental pH value responsiveness of the gelatin membrane material is achieved. In addition, the gelatin composite membrane also has the characteristics of being wide in raw material source, high in mechanical strength, good in water-tightness, environmentally degradable and edible, and has potential market application value in the field of medicine and food packaging.

The present disclosure provides a novel method to fabricate the basic nickel carbonate particulates. The nickel content in the basic nickel carbonate particulates fabricated by this invention (51-53 mass %) is higher than the present commercialized products (44-46 mass %). Basic nickel carbonate is an important intermediate to prepare NiO and pure Ni particles, and NiO and pure Ni particles are important materials in electronic industrial. Therefore, basic nickel carbonate has its potential market.

The invention relates to a bluefin tuna collagen hydrolyzate and a preparation method thereof. The method comprises the following steps: cleaning bluefin tuna bones, and immersing in an acidic solution to remove inorganic calcium salts; immersing in a sodium chloride solution to remove non-collagen impurity proteins; carrying out degreasing, fishy smell removal and enzymolysis on the treated fish bones, inactivating the enzyme at high temperature, and carrying out hydrothermal extraction to obtain a bluefin tuna collagen hydrolyzate solution; and drying to obtain the collagen hydrolyzate powder. The preparation technique is scientific and reasonable, and fully utilizes the unemployed fish bones in aquatic product processing as the raw material to develop the collagen hydrolyzate with potential market value; the composite enzyme degreasing, fishy smell removal and enzymolysis process is adopted while regulating the enzymolysis conditions of the composite enzyme, thereby greatly shortening the extraction time of the collagen hydrolyzate, preparing the tuna collagen hydrolyzate with different molecular weights and with the advantages of high gel strength, high oxidation resistance activity, high safety, no toxic or side effect and the like, enhancing the production efficiency and lowering the energy consumption.

The invention provides a bolt gasket assembling device comprising a gasket distribution disc, a bolt duct, an intermittent rotation mechanism and a support, wherein the gasket distribution disc comprises a cover plate and a distribution plate; the cover plate is located above the distribution plate; an inclined bump is arranged on the cover plate; a gasket guide groove is formed in the inclined bump; the cover plate is integrally fixed on the support; a semi-open gasket groove is formed in the edge of the distribution plate and a through hole for the smooth passing of the rod part of a bolt to be assembled is formed at the center of the semi-open gasket groove; the bolt duct is located right above the semi-open gasket groove; the intermittent rotation mechanism is located on the support; a long shaft is arranged at the center of the intermittent rotation mechanism; a long shaft hole is formed in the center of the distribution plate; and the long shaft is in key connection with the long shaft hole; the intermittent rotation mechanism drives the distribution plate to rotate around the long shaft intermittently by means of the long shaft. With the bolt gasket assembling device provided by the invention, the bolt and the gasket can be assembled together conveniently, quickly and effectively; and therefore, the bolt gasket assembling device has a potential market prospect.

Adult devices for sexual and therapeutic purposes are typically developed and marketed into a limited number of developed countries with high disposable incomes. However, these represent a fraction of the total potential adult population and accordingly it would be beneficial in all of these markets to offer low cost, ideally very low cost, but effective devices. Solutions meeting this very low cost manufacturing requirement as well as offering new concepts such as limited use or disposable devices are presented exploiting blow molding techniques. Further, many potential markets present issues not prevalent in historical markets that may make it difficult for individuals to acquire devices, even without the financial issues, and hence solutions are presented wherein adult devices can be acquired and / or marketed in manners that address or mitigate these issues.

The invention relates to nano-silver composite collagen surgical dressing and a preparation method of the nano-silver composite collagen surgical dressing. The preparation method comprises the following steps: uniformly mixing a dialdehyde polysaccharide solution and silver nitrate solution, completely boiling the mixed solution, carrying out reflux condensation, after the mixed solution is cooled to the room temperature, carrying out dialysis and centrifugalizing, taking the supernate, thus obtaining nano-silver solution, soaking collagen sponge in the nano-silver solution, and carrying out freeze drying, thus obtaining the nano-silver composite collagen surgical dressing. The stable nano-silver solution with narrow particle size distribution range is prepared by adopting a pollution-free reduction method, in addition, dialdehyde polysaccharide in the solution can have Schiff base chemical crosslinking reaction with collagen, and thus the physical properties of the collagen sponge are enhanced. The prepared nano-silver composite collagen surgical dressing has the advantages of broad-spectrum antibacterial activity, rapid bleeding-stopping property, high mechanical property, good moisture retention and biocompatibility, and has the potential market application prospect in the field of treating burns and scalds.

The invention relates to a composite material mold and a manufacturing method thereof. The method comprises the following steps: (i) paving a fiber surface felt on a female mold; (ii) paving a fiber woven fabric layer on the fiber surface felt; (iii) paving a sewed and woven fabric layer on the fiber woven fabric layer so as to obtain a paved prefabricated body; (iv) introducing pouring resin intothe paved prefabricated body through a vacuum pouring manner, and carrying out curing, post-treatment and de-molding to obtain the composite material mold. The invention further provides the composite material mold prepared by the method. The method provided by the invention has the advantages of low cost, small processing difficulty, short production period and the like; the prepared composite material mold has the advantages of good temperature resistance, high mold precision, light weight and the like; the problems of surface cracks, deformation and the like of a traditional composite material mold are overcome; the composite material mold has a great potential market in the fields of manufacturing aircrafts, vehicles and the like.

The present invention relates to a method for integrated treatment of dyeing wastewater by using magnetic activated carbon. According to the method, an improved magnetic activated carbon adsorption process and an Fe3O4-H2O2 based Fenton-like technology are organically combined based on the preparation of a PAC-Fe3O4 composite material, and a dyeing wastewater treatment technology integrated with adsorption and regeneration is proposed, and the materials after adsorption can be synchronously regenerated by using the Fenton-like technology in the processing system. According to the method, the adsorption property of the PAC-Fe3O4 composite material and the Fe3O4 Fenton-like catalyst characteristic are fully used. At the time that the material performs adsorption effect on the dye pollutants, H2O2 is synchronously added to form a Fe3O4-H2O2 Fenton-like system to perform regeneration, so that the processing ability of the system is effectively improved, and the processing cost is lowered. The advantages of a pure PAC process and a conventional Fenton process are organically combined, so that the shortages that the conventional PAC and the treated wastewater are difficult to separate are easily to be lost, and cannot be regenerated are solved, and the problems that ferric salt needs to be continuously added in the conventional Fenton process, and the sludge output amount is large are improved. The method has the advantages of being simple, efficient, economical and the like, thereby having a large potential market in dyeing wastewater treatment applications.

The invention discloses a compact type electric vehicle battery liquid cooling device which comprises a battery box; the battery box is internally provided with a plurality of battery modules which are connected with one another; each battery module is formed by sheathing a single battery into a heat conduction shell, wherein the inner wall of the heat conduction shell is jointed with the outer wall of the battery; the outer wall of each heat conduction shell is provided with a cooling pipe; each cooling pipe is arranged in a slot of the outer wall of each heat conduction shell; each slot is jointed with each cooling pipe. The compact type electric vehicle battery liquid cooling device is simple and compact in structure and convenient to popularize and apply, and can effectively control the temperature of batteries to be within the best working temperature range, thus being suitable for various devices driven by the power batteries, and having a potential market prospect.

The invention relates to tuna bone collagen peptide capable of promoting bone cell growth and a preparation method thereof. The method comprises the steps of decalcification treatment, compound enzyme fish bone degreasing enzymolysis and purification and drying; for the tuna bone collagen peptide obtained through the method, the molecular weight is 500-2,000 Da, the contact angle is 10.0-25.0 degrees, and MC3T3-E1 cell growth can be promoted under the concentration of 5-200 microgram / mL. Accordingly, the preparation technology is scientific and reasonable, fish bones which are not utilized in aquatic product processing are fully utilized as raw materials, collagen peptide with potential market value is developed, compound enzyme degreasing enzymolysis method is adopted, the compound enzyme enzymolysis condition is adjusted, and the tuna bone collagen peptide which is capable of promoting the bone cell growth, safe, free of toxic and side effects and the like is obtained. The production efficiency is improved, energy consumption is lowered, the technology is scientific and reasonable, and operation is easy.

The invention discloses an electricity clearing method and apparatus for adjusting the market supply and demand based on a residual supply index. The method comprises: residual supply indexes of a plurality of market subjects are obtained; if market power is employed, overall adjustment is carried out on power declared by power generation subjects and market needs of the power generation subjects;bidding functions of all market subjects in a competition clearing transaction part in a preset electricity market are adjusted and adjustment information is obtained; clearing of all market subjectsin the preset electricity market is carried out based on the adjustment information and market clearing information of a CTCP is obtained; on the basis of the market clearing information of the CTCP,matching of all market subjects in a forced price settlement part of the preset electricity market is calculated; and according to a clearing amount and a clearing price, settlement and clearing arecarried out on all market subjects. Therefore, the bidding electricity of the power generation subjects with the potential market power can be divided into two parts: a competition participation clearing transaction part and a forced price settlement part; and while the market supply and demand ratio is kept to be unchanged, full-competition market clearing is realized.

The invention relates to a porous multi-element alloy compound anode material, a preparation method and a lithium ion battery containing the compound anode material. The multi-element alloy compound anode material provided by the invention comprises modified nanometer active materials, graphene chips dispersed between the modified nanometer active materials and amorphous conductive carbon layers wrapped on the modified nanometer active materials and the graphene chips. The lithium ion battery prepared from the compound material provided by the invention has excellent circulating and rate capabilities, lower volume expansion effect and potential market application prospect. The preparation technology according to the invention is simple, controllable and suitable for industrial production.

The invention provides a structured data model-based standard information analysis method comprising the following steps: defining a structured standard text, and determining a meta-data model XSD; using a page text editor to edit the structured standard text; building a standard meaning label database, obtaining the structured standard text position in the corresponding meaning label database, and setting a placeholder; building a standard structure relation database; building a reference relation database according to the reference relation between header information and standard specifications; resource locating a RDF file, and using a standard directory structure to store same. The method can realize standard element fine grain positioning on the basis of standard content fine grain management; the method is convenient in retrieval and utilization; in standard characteristic adjustment, the method can timely automatically issue in public utility with sensitive reactions, like power supply and consumption and industry and traffic, thus providing real meaning and potential market space for regulating service standards.

The invention relates to a konjac glucomannan membrane haze-prevention mask. A mask body of the konjac glucomannan membrane haze-prevention mask is composed of four layers which specifically include the first layer, namely, the outmost layer, made of non-woven fabric, the second layer made of a konjac glucomannan porous membrane, the third layer made of a konjac glucomannan nanometer porous membrane, and the fourth layer, namely, the layer in contact with the face, made of non-woven fabric. With natural polymer polysaccharide, namely, konjac glucomannan, serving as the main ingredient, the konjac glucomannan membrane haze-prevention mask has various characteristics of hydrophilia, the thickening characteristic, stability and the like. In recent years, natural polymer compounds are widely applied to the material field, and many problem emerging on material safety are solved. The technology of preparing high-quality nanometer porous membranes with plant polysaccharide serving as the raw materials become a hot point in recent years; according to the method, the special gel property of konjac glucomannan is utilized, and the konjac glucomannan nanometer porous membrane is obtained through application of the electric field technology, and has great application potential in the material field. The konjac glucomannan membrane haze-prevention mask has higher indexes such adsorption performance, safety, raw material price and potential markets than those of other masks on the market, and can be selected by mass consumers as high-quality haze-prevention masks.

The invention provides a Fenton process sewage treatment integrated device based on iron sludge reuse and a method thereof. The device at least comprises a Fenton reaction pond (1), a sludge storage pond (2), an iron sludge acidifying reaction pond (3), an ultraviolet hydrogen peroxide reactor (4) and an electrolytic reaction pond (5) which are successively connected. The Fenton process sewage treatment method capable of treating the iron sludge online provided by the invention comprises the following steps of: firstly implementing Fenton treatment; then discharging the iron sludge to the sludge storage pond (2); then performing a full acidification reaction in the iron sludge acidifying reaction pond (3); filtering the mixture with an immersed membrane assembly (17) to reduce the content of organic matters and the concentration of suspended solids; then performing secondary oxidization with the ultraviolet hydrogen peroxide reactor (4); and finally, reducing Fe<3+> into Fe<2+> through electrolysis to obtain a regenerated Fe<2+> catalyst. The method provided by the invention realizes online reuse of Fenton iron sludge, reduces discharge of the Fenton iron sludge by 70% above and reduces the dosage of a Fenton reaction catalyst by 50% above, so that the method has a wide application prospect and potential market value.

The invention relates to a market risk assessment method based on power transaction data, and the method comprises the steps: 1), carrying out the dimension reduction of a power market risk monitoringfull-index library based on a Lasso regression model, and constructing a power market risk monitoring index system; 2) determining an index threshold value by adopting a mean number principle method,screening abnormal data, and carrying out preliminary identification on a risk object; 3) calculating the subjective weight and the objective weight of each index by using an improved CRITICG1 method, calculating the comprehensive weight of each index by using an improved game theory combination weighting method, constructing an aggregation model, and determining the risk level of the screened market subject by using a comprehensive evaluation method; and 4) performing risk assessment on the market risk of the market subject according to the risk level, and establishing different early warning mechanisms to warn the market risk. Compared with the prior art, the method has the advantages of effectively monitoring potential market violation behaviors of different market subjects, improvingthe precision and speed of power market risk assessment and the like.

The invention relates to a composite die master die as well as a manufacturing method and application thereof. The method comprises the following steps of manufacturing a steel frame, and stacking steel strips on the steel frame to form a steel profile; laying a wood slab layer on the steel profile to form a wood slab layer profile; adhering a foam layer to the wood slab layer profile, and performing rough machining to form a roughly machined profile; laying a glass fiber reinforced plastic layer on the foam profile to form a glass fiber reinforced plastic layer profile; and laying a wood substituted resin layer on the glass fiber reinforced plastic layer profile, and performing finish machining to obtain the master die with a finish machined profile. The invention also provides the masterdie manufactured by the method and application of the master die in manufacturing a composite die. The method has the advantages of low cost, small processing difficulty, short production period andthe like; and the manufactured master die and the manufactured composite die have the advantages of good temperature resistance, high die accuracy, light weight and the like, overcome the problems ofsurface cracks, deformation and the like of a traditional composite die and have large potential market in the field of aircraft and vehicle manufacturing and the like.

The invention discloses a processing process of an ultra-wide digital weaved photograph decorative fabric. Design flow of the processing process comprises drawing checking, drawing revising, color separating, process designing and plate-making, wherein the drawing revising process and the color separating process are more critical and directly affect showing effect of a tapestry drawing. The process designing comprises operations such as bordering, surface texture paving, backing texture configuring and shooting-in. The processing process disclosed by the invention has the beneficial effects that an artistic style of the digital waved photograph tapestry drawing is introduced into the decorative fabric by adopting a digital waved photograph designing system and an 8192 needle electronic jacquard faucet, so that a full true-color emulational image ultra-wide ornament is developed, artistry of the decorative fabric is greatly improved, and far-reaching significance is achieved for promoting textile industry development. Meanwhile, breakthrough on technology is realized by digesting and absorbing performances of electronic jacquard equipment, upgrading and modifying the existing cotton-weaving equipment, researching the production process technology, establishing an operating method, and the like, so that the blank of the ultra-wide decorative artware in the field is filled up, personalized needs of the consumer market are satisfied, and potential market efficiency is great.

The invention relates to the field of ECH (epichlorohydrin) production, in particular to an industrial method for realizing direct ECH continuous production by a phase transfer catalyst. The industrial method comprises the following steps: chloropropene and the catalyst are mixed in a mixing tank, and the mixture is mixed with another strand of raw material hydrogen peroxide for reaction in multistage tubular reactors. A mixer is arranged in the front of each tubular reactor, a buffer tank is arranged at the back of each tubular reactor, nitrogen is introduced in the buffer tanks, a gas phaseof the buffer tanks is condensed by a condenser, a liquid phase flows back, the gas phase enters a washing tower, one liquid phase of the buffer tank flows back and the other enters the next buffer tank to repeat the reaction process; part of the liquid phase flowing out of the last buffer tank flows back and the other part enters a separation system for separation. The design is ingenious, the multistage tubular reactors substitute for an agitator type reactor, reaction materials form turbulent flow and are mixed uniformly by a reflux pump instead of stirring by the agitator type reactor, sothat the reaction is safe and stable, and the operation cost is saved. The method has potential market value.

The invention discloses a method for preparing puffed wild vegetable chips and a product thereof. The method for preparing puffed wild vegetable chips comprises the sequential steps as follows: (1) selecting and cleaning raw materials; (2) blanching; (3) green-protecting and rinsing; (4) shredding and mashing; (5) material preparing; (6) setting, (7) puffing by microwave; (8) packaging. The method for preparing the wild vegetable clips by the puffing technology not only increases the diversity of foods with wild vegetable flavor, but also provides a novel method for the development and application of wild vegetable resources. The product provided by the invention retains most of the nutrients and taste of wild vegetables; the product is crispy and delicious with appropriate salt and sugar, thereby increasing people's preference. The method has the advantages of simple preparation technology and low manufacturing cost, and the product has a favorable potential market.

The invention discloses a comprehensive aquatic product processing leftover utilization method which comprises the following steps: with processing leftovers of crustacean including fish, shrimp, crab and the like as the raw materials, cleaning, low-temperature drying, cryogenic grinding, complex enzymatic degradation, organic acid extraction, high-speed centrifugal separation, reverse osmosis dehydration, molecule embedding, high-pressure homogenizing, vacuum low-temperature cryogenic drying, pelletizing, tabletting, automatic bottled packaging production line processing and outer packing are carried out, and all high value-added bio-active substances including astaxanthin, protein, organic calcium, chitin and the derivative of the chitin namely chitosan in the aquatic product processing leftovers are extracted, so that resources are comprehensively and effectively utilized without waste discharge. According to the invention, the moderate bio-enzyme degradation technique is adopted, the whole process is carried out under the low-temperature condition, strong acid, strong base and toxic solvents are not used, the technological process is short, the industrial chain is long, and the products are high in bioactivity, various in variety, excellent in quality, safe to eat, wide in application fields, large in potential market, and high in comprehensive economic benefit.

The invention discloses a preparation method of a puffed flower crisp chip and a product. The method is characterized by comprises the steps of raw material selection, cleaning, blanching, color protection, crushing, beating, batching, shaping, microwave puffing and packing. A flower is a plant or a medicinal flower issued by Ministry of Health of China or frequently eaten in the folk; and the flower crisp chip prepared by a puffing technique increases a category of flower flavor food, and provides a new approach for development and utilization of a flower resource. The puffed flower crisp chip reserves nutritional ingredients and fragrant and delicate flavors of the flower to the greatest extent; the product is fragrant, crisp, tasty, appropriately salty and sweet, unique in flavor, and nutrient-rich, and can allow people to profit from nutrition and health of the flower in eating; the method is simple in preparation technology, mature in technology and easy to operate, and is appropriate for industrial production; and the product has a good potential market.

The invention relates to the field of bioengineering, in particular to a preparation method of industrialized non-denaturing collagen II. The preparation method comprises the steps of cartilage pretreatment, alkali liquor extraction, separation, drying and enzymolysis. Most impurities such as soluble protein, fat, chondroitin sulfate and hyaluronic acid in cartilage are removed by low-temperaturealkali liquor extraction, subsequent separation and drying of insoluble non-denatured collagen II powder as well as extraction and refining of soluble non-denaturing collagen II in the enzymolysis step are facilitated, and salting out, dialysis and other operation in the enzymolysis step in the conventional method can be omitted; the preparation method has simple steps and short working hours, ismore beneficial to industrial production, avoids production of a large amount of waste water, and has potential market value accordingly.

The invention relates to the oil field oil extraction field and particularly relates to a low-concentration and efficient composite oil displacement composition. The composition contains the followingcomponents: sodium lauryl sulfate, N-dodecyl N methylpyrrolidinium bromide and partially hydrolyzed polyacrylamide. The composition contains simple components, and a surfactant oil replacement groupis formed by an anionic surfactant, a cationic surfactant or an additional nonionic surfactant and a cosurfactant, so that the taboo that the anionic surfactant and the cationic surfactant are hardlysimultaneously used is broken through; and the surfactant oil replacement group is further combined with oil replacement components of the composition, and the advantages of surfactant oil replacementand polymer oil replacement are adequately utilized, so that the oil extraction efficiency is comprehensively improved. Compared with common oil displacement composition products, the low-concentration and efficient composite oil displacement composition has the advantages that the use amount is fewer when an oil replacement solution is formed, the oil extraction can be remarkably lowered, the huge economic benefit can be created, and the composition has a potential market value.

The invention relates to the field of hydrogen cracking of heavy oil, and specifically relates to a self-vulcanization oil-soluble molybdenum based bimetallic catalyst and a preparation method and applications thereof. The preparation method comprises following steps: mixing a molybdenum source compound with a second metal salt to generate a molybdenum based bimetallic compound through a chemicalprecipitation method; processing the molybdenum based bimetallic compound by a vulcanizing agent to obtain bimetallic sulfo-molybdate; reacting organic amines with bimetallic sulfo-molybdate to prepare an oil-soluble molybdenum based bimetallic catalyst precursor; and adding a dispersant into the precursor to obtain the self-vulcanization oil-soluble molybdenum based bimetallic catalyst. The prepared catalyst has an excellent hydrogenation activity and a good coke inhibiting performance; furthermore, the preparation technology is simple, the addition amount of catalyst is little, the application is convenient, and the catalyst is suitable for a low cost slurry reactor hydrogen cracking technology, which uses inferior heavy oil rich in metals, coal residues, sulfur, and solids, and has a potential market value.

The invention discloses an analysis method for the overall electricity utilization trend of an electric power market, and belongs to the field of electricity supply and utilization management. The analysis method comprises the following steps: collecting and summarizing various types of electricity selling data in a district within a time period according to classes; carrying out data cleaning on the various types of electricity selling data to obtain various types of complete electricity selling data in the district; analysing the changes of the various types of electricity selling data to obtain the overall electricity utilization trend of the electric power market of the district; obtaining the development condition of the electric power market of the district and a future marketing condition predication according to the historically finished electricity selling amount historic trend data, the actual business expansion condition in the past two years and the influence amount of the extreme air temperature calculated on the basis of a historic data analysis on the electricity selling amount; predicating the potential market of electricity supply and utilization in the district by virtue of an analysis on the overall electricity utilization trend of the electric power market of the district, providing basic data for power grid optimization and marketing personnel allocation, and providing an effective data support for electric power market analysis and power grid planning. The analysis method can be widely used for the fields of electricity supply and utilization management, power grid optimization and electric power marketing.

The invention relates to the field of automatic mechanical equipment, in particular to an automatic distribution mechanism for stock bins. The automatic distribution mechanism for the stock bins comprises the full tray stock bin, a tray distribution device and tray positoiners, wherein insert trays are stacked in the full tray stock bin, and the tray distribution device and the tray positoiners are mounted on the lower portion of the full tray stock bin. The automatic distribution mechanism for the stock bins further comprises a single-axis robot located on the lower portion of a base used for supporting the full tray stock bin and the empty tray stock bin located on the other side of the upper portion of the base. The automatic distribution mechanism for the stock bins further comprises a conveying track located between the full tray stock bin and the empty tray stock bin and a transferring device located on one side of the track. The automatic distribution mechanism for the stock bins further comprises a jacking cylinder which is located on the lower portion of the empty tray stock bin and mounted on the base. The automatic distribution mechanism for the stock bins is simple in overall structure, ingenious in design, stable in tray distribution and good in continuity; the tray distribution device is formed by simply combining a shifting wheel with a transmission device, a conventional tray distribution device internally provided with a cylinder for tray distribution and provided with an assembly comprising complex structures such as a separation cylinder, a jacking cylinder and a lifting cylinder is replaced, and the problems that the speeds of the cylinders are inconsistent, tray distribution vibration is large, and consequentially materials in trays are prone to being vibrated out are solved; and the automatic distribution mechanism for the stock bins has potential market value.

The invention relates to a novel synthesis method for a three-stage alpha-hydroxyl carbonyl compound. According to the method, the carbonyl compound is taken as a raw material, sodium carbonate is taken as a catalyst, and proper types of additives and assistants are used, thus effectively building up a novel catalytic reaction system and further preparing the three-stage alpha-hydroxyl carbonyl compound at high yield. The reaction does not need an expensive noble metal catalyst or a complicated polymer catalyst, and shows advantages of high reaction yield, short time and the like. Therefore, the method has broad industrial application prospect and potential market value.

The invention provides a water-based nano high-coverage 3D printing coating which is prepared from water-based polyurethane resin, water-based nanoscale color paste, ionized water and propylene glycol at the mass ratio of (75-90):(6-10):(9-11):(1-3), wherein the solid content of the water-based polyurethane resin is 50-60%; and the fineness of the water-based nanoscale color paste is 85-100nm. The preparation method of the water-based nano high-coverage 3D printing coating comprises the main steps of preparing the water-based polyurethane resin and the water-based nanoscale color paste separately, and then fully mixing the water-based polyurethane resin, the water-based nanoscale color paste, the ionized water and the propylene glycol at the mass ratio; and adding a polyurethane thickening agent for viscosity control to prepare the water-based nano high-coverage 3D printing coating. The water-based nano high-coverage 3D printing coating has the characteristics of high coverage rate, high elasticity and high third dimension, can adapt to the diversity of printing materials, and is relatively low in production cost and suitable for large-scale industrial production, therefore, the water-based nano high-coverage 3D printing coating has potential market values and wide application prospects.

The invention relates to mesoporous silica nanoparticles having a disulfiram monomer and a preparation method and application thereof. The method includes (1) preparing mesoporous silica nanoparticles; and (2) by utilizing disulfide bonds of disulfiram, preparing mesoporous silica nanoparticles having a disulfide-bond-containing disulfiram monomer (diethyldithiocarbamate), with the average particle size of the nanoparticles being 50-300 nm. The prepared nanoparticles having the disulfiram monomer are uniform in distribution and good in dispersibility, facilitate improvement on medicine targeting properties, increase medicine bioavailability, make drug preparation costs low, greatly reduce the treatment cost of patients and have potential market value and far-reaching social significance.