38results about How to "Overcoming the problem of poor stability" patented technology

The invention discloses a multi-component microalloyed bainite gray cast iron, a cylinder liner and a preparation method thereof. The bainite gray cast iron is composed of the following components by weight: 2.70%-2.95% of carbon, 1.80%-2.15% of silicon, 0.30%-0.55% Mn, larger than 0 but smaller than or equal to 0.1% of P, larger than 0 but smaller than or equal to 0.1% of S, 0.3%-0.5% of copper, 0.10%-0.18% of molybdenum, 0.01%-0.05% of boron, 0.35%-0.60% of chromium, 0.04%-0.10% of nitrogen, 0.2%-0.4% of niobium, 0.25%-0.35% of vanadium, 0.065%-0.025% of titanium, and the balance being Fe. The multi-component microalloyed bainite gray cast iron increases high-temperature structure stability of a bainite matrix, guarantees that high-temperature strength of the gray cast iron is at a relatively high level, has excellent high-temperature structure properties and low production cost, and is suitable for manufacturing high-temperature, high-speed and heavy-load engine cylinder liners.

The invention discloses a solid fermentation tank as well as a method for preparing red kojic rice by using the solid fermentation tank and a product prepared by the method, and belongs to the technical field of biological fermentation. The solid fermentation tank comprises a horizontal fermentation bucket, a temperature detecting opening, a humidity detecting opening, a pressure detecting opening, an inoculation opening, a sampling opening, a feeding hole, sight glass, an inlet pipe, an outlet pipe, a balance plate, a rolling bracket, a material baffle and an outside-bucket jacket. The method is used for preparing healthy nutritional red kojic rice by using the solid fermentation tank by the following steps: soaking materials; washing the materials; steaming the materials; cooling; separating; inoculating; mixing; keeping the temperature; keeping the humidity; fermenting; harvesting; and drying and the like. By virtue of the design of the invention, the environmental protection property, economic efficiency and stability of the solid fermentation tank as well as the homogeneity of the same batch of fermentation products are improved; the solid fermentation tank is applied to the preparation method; the preparation condition is optimized; the contents of red rice protein, red rice polysaccharide, ergosterol and amino acid in the prepared red kojic rice are respectively not lower than 3.0%, 2.0%, 1.0% and 1.0%; the limit amount of citrinin is not higher than 0.01mg / kg and the limit amount of monacolin K is not higher than 0.01%.

The invention provides a method for preparing a modified polyaluminum chloride flocculating agent by a waste molecular sieve, and relates to a method for preparing a modified polyaluminum chloride flocculating agent. The method comprises the following steps: activating, crashing and sieving the waste molecular sieve to obtain molecular sieve powder of which the grain size is less than 60 meshes; measuring and taking the molecular sieve powder, calcium aluminate powder and hydrochloric acid according to the mass ratio of 1:1-2:5-6;, mixing the calcium aluminate powder and the hydrochloric acid, stirring the mixture for 2 to 3 minutes; and then adding the molecular sieve powder in the mixture and reacting the mixture at a temperature of between 96 and 98 DEG C for 1.5 to 2 hours; standing the mixture for 30 minutes, adjusting the pH value of the supernatant fluid to 2 to 4 by a weak alkali such as solution of sodium carbonate, or solution of sodium bicarbonate, or ammonia water and the like; curing the supernatant fluid at a temperature of between 50 and 60 DEG C for 12 hours to obtain a liquid product of the modified polyaluminum chloride flocculating agent; and drying the liquid of the modified polyaluminum chloride flocculating agent to obtain a solid product of the modified polyaluminum chloride flocculating agent. According to tests, in the solid product, the content of aluminum oxide is more than 30 percent, the basicity is over 80 percent, the content of insoluble substance is less than 0.5 percent, and other indexes all meet the national standards of the modified polyaluminum chloride flocculating agent. The method has the advantages of simple process, low cost and high economic and social benefits.

The invention provides supramolecular nucleoside hydrogel and a preparation method and application thereof, and belongs to the field of biomedical materials. In a powder X-ray diffraction pattern of the hydrogel, diffraction peaks exist at 2theta diffraction angles of 26.7 degrees, 28.4 degrees and 40.5 degrees. The supramolecular hydrogel based on D-configuration alpha-deoxyguanosine is successfully constructed, the alpha-dG hydrogel has excellent stability and cannot be disintegrated and damaged after being placed for 18 months, and the problem that in the prior art, supramolecular hydrogel formed by D-type guanosine is poor in stability is solved. Besides, the alpha-dG hydrogel has good injectability, biocompatibility and drug delivery capacity, can be used as a drug carrier, and is expected to be further applied in the field of biomedicine, such as local treatment of oral mucosa diseases.

The invention relates to a mining conveyer carrier roller fault monitoring, positioning and warning device. By laying sensing optical fibers on two sides of a carrier roller, vibration information of a conveying belt passing through the carrier roller is captured and is transmitted to a signal analysis and processing module, and a timely alarm is given when a fault of the carrier roller is detected. A site warning device is arranged in a coal mine transportation site, and a PC monitoring terminal is arranged in a remote monitoring chamber. The mining conveyer carrier roller fault monitoring, positioning and warning device can achieve mining conveyer carrier roller fault monitoring, positioning and warning in a severe environment of coal mine production and has a higher application value.

The present invention relates to the process of catalytically cracking C4-C8 olefin to produce propylene, and the process is superior to available technology, which has the problems of poor high temperature hydrothermal stability of catalyst with dealumination and deactivation. The technological scheme of the present invention is that C4-C8 olefin material is catalytically cracked to produce propylene at the reaction temperature of 400-600 deg.c, reaction pressure of 0-0.2MPa and weight space velocity of 1-10 / hr under the action of catalyst with ZSM-5 molecular sieve in the SiO2 / Al2O3 ratio of 10-180 as the main active component. The process may be used in industrial production of propylene through cracking olefin.

The invention relates to a winding device, and belongs to the technical field of machine manufacturing and designing. The winding device comprises a bracket and a wire reel, wherein the wire reel comprises a rotating rod arranged at the central position and two baffle plates; the bracket comprises a bottom plate and two vertical plates; rotating holes are formed in the two vertical plates; the rotating rod of the wire reel penetrates through the rotating holes, and extends from the two baffle plates; the wire reel can rotate around the rotating holes. The winding device is characterized by further comprising a driving motor and a speed reducer, wherein a power output shaft of the driving motor is connected with a power input shaft of the speed reducer through a belt or a chain in a transmission manner; a power output shaft of the speed reducer is connected with the rotating rod through the belt or the chain in the transmission manner; wire guide devices are also arranged on the two vertical plates, and consist of arched plates and wire guide holes formed in the arched plates; the wire guide holes are formed in the centers of the arched plates. According to the winding device, the problem of poor steel wire winding stability caused by the great length of a steel wire during winding of the winding device is solved, and the winding efficiency is improved.

The invention provides a water-dispersibility paprika red pigment micro emulsion and a preparation method thereof. The preparation method comprises steps that a surfactant is mixed with a cosurfactant, then an oil phase comprising paprika red pigment and edible oil is added, stirring is carried out and water is added so as to obtain a system, the system firstly becomes clear and then turbid, when the water is added to reach a certain quantity, the system suddenly becomes clear and transparent again, so as to obtain the water-dispersibility paprika red pigment micro emulsion, the mass percent content of the paprika red pigment in the micro emulsion reaches 1.98%-9.86%. The preparation method has the advantages that the pasty paprika red pigment is prepared into water-dispersibility paprika red pigment micro emulsion, so that the dispersibility of the paprika red pigment in the water and the stability of the paprika red pigment in the hot processing are improved; the preparation method is simple, low in production cost and beneficial for large scale production. The water-dispersibility paprika red pigment micro emulsion can be used in fluid food, semifluid food and high moisture food, and the application field of fat soluble paprika red pigment is enlarged.

The invention belongs to the technical field of solar cells, and particularly relates to a quantum dot solar cell and a preparation method thereof. The invention provides a quantum dot solar cell. Thequantum dot solar cell comprises a conductive substrate, an electron transport layer, a hole transport layer and an electrode layer which are stacked in sequence. The material of the electron transport layer is PbS-PbX2; wherein the PbS-PbX2 is a PbS quantum dot coated with an n-type lead halide ligand, and X is halogen; wherein the material of the hole transport layer is PbS-EDT, and the PbS-EDTis a PbS quantum dot coated with a p-type 1, 2-ethanedithiol ligand; and a p-n junction is formed between the hole transport layer and the electron transport layer. According to the quantum dot solarcell provided by the invention, the stability of the quantum dot solar cell and the utilization rate of ultraviolet light are improved on the basis of ensuring relatively good photoelectric conversion efficiency.

The invention discloses an electrochemical sensor based on CoCuCdTCPP coordination polymer modification and a preparation method and application thereof. The electrochemical sensor is prepared by dispensing a CoCuCdTCPP coordination polymer turbid solution on the surface of an electrode; the CoCuCdTCPP coordination polymer comprises a dual-metal CuCdTCPP and CoCdTCPP coordination polymer and a tri-metal system CuCoCdTCPP coordination polymer. The CoCuCdTCPP coordination polymer is applied to the electrochemical sensor for the first time; due to the fact that the electrochemical sensor formed by a plurality of metal active center modified electrodes of the CoCuCdTCPP coordination polymer can effectively and stably detect nitrous acid and sodium peroxide, the response time is short, the sensitivity is high, the cost is low, and preparation is easy.

The invention relates to a sodium houttuyfonate vaginal expansive suppository and a preparation method and a test method thereof. The expansive suppository comprises sodium houttuyfonate-containing matrix and an expansive carrier; in the sodium houttuyfonate-containing matrix, acid particles and alkaline particles generate carbon dioxide when meeting water, so as to foam, and in combination with the expansive action of the expansive carrier, sodium houttuyfonate can reach vaginal deep site and fold site to improve the drug action range; ascorbic acid in acid particles has an antioxidant effect to improve the stability of the suppository; buffer salt particles in the sodium houttuyfonate-containing matrix provide an appropriate pH environment which is in favor of the complete effervescence of the suppository and improves the bioavailability of sodium houttuyfonate in the suppository; the hollow effervescent vaginal suppository seals the drug-containing layer in the matrix hollow cavity, so as to improve the stability of the expansive suppository; the sodium houttuyfonate vaginal expansive suppository adopts six original advanced techniques, and has the beneficial effects of prevention of medicinal liquid from flowing out, high stability, lasting therapeutic effect, prevention of secondary infection, and so on.

The invention discloses an electrochemical sensor based on CoCuCdTCPP coordination polymer modification and a preparation method and application thereof. The electrochemical sensor is prepared by dispensing a CoCuCdTCPP coordination polymer turbid solution on the surface of an electrode; the CoCuCdTCPP coordination polymer comprises a dual-metal CuCdTCPP and CoCdTCPP coordination polymer and a tri-metal system CuCoCdTCPP coordination polymer. The CoCuCdTCPP coordination polymer is applied to the electrochemical sensor for the first time; due to the fact that the electrochemical sensor formed by a plurality of metal active center modified electrodes of the CoCuCdTCPP coordination polymer can effectively and stably detect nitrous acid and sodium peroxide, the response time is short, the sensitivity is high, the cost is low, and preparation is easy.

The invention provides complex solvent modified liquid polysulfide rubber which is characterized in that the structural formula of the complex solvent modified liquid polysulfide rubber is shown at the upper right part (I). In the structural formula, n is equal to an integer between 1 and 8; X and X' are O or S; R1 and R1' are shown as (II) at the upper right part or -[-OCH2CH2CH2CH2-]m- or other polyether and polyester chain segments, wherein m is equal to an integer between 20 and 50; R2 and R2' are aromatic hydrocarbons, aliphatic hydrocarbons or lactone ring alkyls; and R3 and R3' are aliphatic alkyls, the carbon number of which, is between 2 and 11 or are main frameworks of the liquid polysulfide rubber [HS-R3(or R3')-SH] which contains sulfhydryl and is sold in the market. The complex solvent modified liquid polysulfide rubber has the advantages of good stability, no toxicity, no pollution, good elasticity, high temperature resistance, low temperature resistance, ultraviolet aging resistance, good oil resistance and the like. The preparation process has reasonable technical theoretical design and simple practical operation. Compared with the same industry, the invention also has the advantages of simple technology, environment protection, energy saving, reasonable cost, no discharge of the three wastes, no influence on environment and the like, and the recovery rate is 100%.

The invention discloses a method for preparing a modified polyaluminum chloride flocculant by using waste molecular sieves, and relates to a preparation method of a modified polyaluminum chloride flocculant. First activate, crush and sieve the discarded molecular sieve to obtain molecular sieve powder with a particle size less than 60 meshes; then measure molecular sieve powder: calcium aluminate powder: hydrochloric acid=1:1~2:6 mass ratio, then calcium aluminate powder and Mix hydrochloric acid, stir for 2 to 3 minutes, add molecular sieve powder, react at 96°C to 98°C for 1.5 to 2 hours; after standing for 30 minutes, take the supernatant and adjust the pH to 2 to 4 with sodium carbonate solution or sodium bicarbonate solution or ammonia water After aging at 50-60°C for 12 hours, the liquid product of the modified polyaluminum chloride flocculant was obtained; after the liquid of the modified polyaluminum chloride flocculant was dried, the solid product of the modified polyaluminum chloride flocculant was obtained. The content of aluminum oxide in the solid product is more than 30%, the basicity is more than 80%, the insoluble content is less than 0.5%, and other indicators are in line with the national standard of modified polyaluminum chloride flocculant. The invention has simple process, low cost and high economic and social benefits.

The invention relates to a highly stable organic lead iodide crystal material and its preparation method and application. The chemical formula of the crystal material is [Pb 2 I 2 (H 2 O) 0.75 ] 2+ [ – o 2 C(CH 2 ) 4 CO 2 – ], the crystal structure belongs to the monoclinic system, the space group is C2 / c, and [Pb 2 I 2 ] The inorganic components are in the form of two-dimensional layers, and the layers are connected by disodium adipate organic ligands. Compared with the prior art, the present invention overcomes the disadvantages of poor stability of the existing hybrid organic-inorganic perovskite materials and the difficulty of realizing photocatalytic water splitting, combined with the advantages of the present invention such as simple preparation process, it is a promising solution in the field of photocatalysis. have potential application value.

The invention relates to the field of medicaments, and particularly relates to a medicinal preparation and a preparation method and application thereof. The medicinal preparation is prepared from benzoyl peroxide with specific particle size distribution, and when the medicinal preparation is prepared into a mixed preparation together with clindamycin phosphate, the stability of the medicinal preparation can be sufficiently improved, the decomposing degree of two effective components, namely, benzoyl peroxide and clindamycin phosphate, is greatly reduced, and the problem of poor stability of apreparation with the two effective components, namely, benzoyl peroxide and clindamycin phosphate, in long-term storage is solved. The preparation method of the medicinal preparation is simple in process, convenient in operation, short in production cycle, and suitable for large-scale industrialized production. The medicinal preparation disclosed by the invention is applicable to preparation of external medicaments, preferably applicable to preparation of a medicine for treating acne, can effectively inhibit the decomposition of two effective components, namely benzoyl peroxide and clindamycinphosphate, can be stably stored for a long time and can keep efficacy for a long time.

The invention relates to a degradable polymer drilling fluid, and belongs to the technical field of coal bed gas drilling well horizontal well exploitation application. The degradable polymer drilling fluid is characterized in that the degradable polymer drilling fluid comprises water, a degradable densifier, a water-based lubricant, a water blocking resistant agent and an alkalinity adjusting agent, wherein the weight percentages of the degradable densifier, the water-based lubricant, the water blocking resistant agent and the alkalinity adjusting agent respectively account for 1-1.5%, 1-3%, 0.5-1.0% and 0.1-0.2% of the weight of water. The degradable polymer drilling fluid can be used for drilling coal bed gas horizontal wells, can effectively stabilize the coal bed well wall and improve the cuttings carrying capability, and also has the characteristics of degradability, furthest protection of the coal bed, strong coal bed well wall stabilizing capability, good nicking carrying and lubrication capabilities, and good economic benefit.

The invention relates to the field of perovskite solar cell packaging, and provides a perovskite solar cell device and a packaging method thereof. The perovskite solar cell device comprises a glass substrate, a perovskite solar cell, an inert barrier layer, a cover plate and a cover plate packaging adhesive; the perovskite solar cell is arranged on the glass substrate, the inert barrier layer is arranged on the perovskite solar cell, and the cover plate is arranged on the inert barrier layer in a gapless fit mode through the cover plate packaging adhesive. According to the perovskite solar cell device and the packaging method thereof provided by the invention, the stability of the perovskite solar cell device under the combined action of high temperature (65-85 DEG C) and illumination can be remarkably improved by adopting a combined packaging mode of firstly packaging the inert barrier layer and then packaging the rear cover plate in a gapless fit manner.

The invention belongs to the technical field of solar cells, and in particular relates to a quantum dot solar cell and a preparation method thereof. The quantum dot solar cell provided by the present invention comprises a conductive substrate, an electron transport layer, a hole transport layer and an electrode layer stacked in sequence; the material of the electron transport layer is PbS-PbX 2 ; the PbS‑PbX 2 It is a PbS quantum dot coated with an n-type lead halide ligand, wherein X is a halogen; the material of the hole transport layer is PbS-EDT, and the PbS-EDT is a p-type 1,2-ethanedithiol ligand Coated PbS quantum dots; a p-n junction is formed between the hole transport layer and the electron transport layer. The quantum dot solar cell provided by the invention improves the stability of the quantum dot solar cell and the utilization rate of ultraviolet light on the basis of ensuring better photoelectric conversion efficiency.

The invention relates to a treatment method for aminophenol dyeing waste water by using a chlorine dioxide mixed oxidation method. The treatment method comprises the following steps of (1) treating raw materials, wherein 2.0-4.0 kg sodium chlorate and 0.4-0.8 kg active magnesium oxide and / or active calcium oxide are diffused into 8.0-16 kg water to prepare a diffusion solution, and 4.0-8 kg concentrated hydrochloric acid is needed; (2) injecting 1000 kg aminophenol dyeing waste water into a pipeline reactor by adopting an injection pump in a cycle mode; (3) injecting the diffusion solution and the concentrated hydrochloric acid into a chlorine dioxide generator, blending the above materials, sucking the obtained mixture into the pipeline reactor through an injector, injecting the mixture into the reactor in the cycle mode, and obtaining treated waste water after an oxidation reaction of 3-4 hours. Since the degradation of chlorine dioxide which is obtained according to the treatment method for aminophenol dyeing waste water by using a chlorine dioxide mixed oxidation method is inhibited in the presence of magnesium hypochlorite in the slightly alkaline water, the duration of the oxidation reaction is prolonged, and meanwhile magnesium hypochlorite can continuously oxidize part of organic substances in the aminophenol dyeing waste water while bivalent magnesium ions can conduct flocculation treatment on the aminophenol dyeing waste water.

The invention provides a water-dispersibility paprika red pigment micro emulsion and a preparation method thereof. The preparation method comprises steps that a surfactant is mixed with a cosurfactant, then an oil phase comprising paprika red pigment and edible oil is added, stirring is carried out and water is added so as to obtain a system, the system firstly becomes clear and then turbid, when the water is added to reach a certain quantity, the system suddenly becomes clear and transparent again, so as to obtain the water-dispersibility paprika red pigment micro emulsion, the mass percent content of the paprika red pigment in the micro emulsion reaches 1.98%-9.86%. The preparation method has the advantages that the pasty paprika red pigment is prepared into water-dispersibility paprika red pigment micro emulsion, so that the dispersibility of the paprika red pigment in the water and the stability of the paprika red pigment in the hot processing are improved; the preparation method is simple, low in production cost and beneficial for large scale production. The water-dispersibility paprika red pigment micro emulsion can be used in fluid food, semifluid food and high moisture food, and the application field of fat soluble paprika red pigment is enlarged.

The embodiment of the invention provides a display substrate, a preparation method thereof and a display device. The display substrate comprises a plurality of sub-pixels, at least one sub-pixel comprises a pixel driving circuit, and the pixel driving circuit at least comprises a first transistor serving as a driving transistor and a second transistor serving as a switching transistor; the channel of the first transistor comprises a plurality of sub-channels, and the channel length of the first transistor is the sum of the lengths of the plurality of sub-channels. According to the display substrate, the stability of the driving transistor can be improved, and the problem that a display substrate in the prior art is poor in transistor stability is solved.

The present invention relates to the process of catalytically cracking C4-C8 olefin to produce propylene, and the process is superior to available technology, which has the problems of poor high temperature hydrothermal stability of catalyst with dealumination and deactivation. The technological scheme of the present invention is that C4-C8 olefin material is catalytically cracked to produce propylene at the reaction temperature of 400-600 deg.c, reaction pressure of 0-0.2MPa and weight space velocity of 1-10 / hr under the action of catalyst with ZSM-5 molecular sieve in the SiO2 / Al2O3 ratio of 10-180 as the main active component. The process may be used in industrial production of propylene through cracking olefin.

The invention discloses a connecting piece for enhancing the bearing capacity of a tool type scaffold and an installing method of the connecting piece. The connecting piece comprises lower adjusting lead screw bases, a base fixing plate and an upper fixing connecting piece body. Lead screws of the four lower adjusting lead screw bases are sleeved with the base fixing plate and sleeved with the lower portions of four adjacent stand columns of the tool type scaffold respectively. The upper fixing connecting piece body comprises a bearing top plate, outer sleeves, inner sleeves, a limiting plate and upper connecting bolts. The upper portions of the four adjacent stand columns of the tool type scaffold are inserted in the four outer sleeves of the upper fixing connecting piece body respectively to abut against the limiting plate. When some frame bodies with heights needing to be adjusted and high bearing requirements are erected, by means of the connecting piece, the bearing capacity of the tool type scaffold can be greatly improved, the rigidity and stability required by the tool type scaffold can be achieved, and the connecting piece is easy, convenient and flexible to use and operate and suitable for erecting platforms with large loads and high precision requirements.

The invention provides fluorinated modified sulfonated polyarylether as shown by a general formula (1), and simultaneously provides a method for fluorinating and modifying polyarylether and application of the fluorinated modified sulfonated polyarylether in preparing a proton exchange membrane. The invention aims to overcome the defects that the prior proton exchange membrane applied to fuel batteries has a complex synthetic route, a high preparation cost or lower performance. The fluorinated modified sulfonated polyarylether is prepared by drying sulfonated polyarylether and then performing reactions between the sulfonated polyarylether and mixed gas of fluorine gas / nitrogen gas at a temperature of lower than 100 DEG C; and in the application of preparing the proton exchange membrane, the sulfonated polyarylether can be ground into powder and prepared into a thin membrane after fluorinated modification, and then the thin membrane is subjected to acidizing, or the sulfonated polyarylether is prepared into the thin membrane, and then the thin membrane is subjected to acidizing after the fluorinated modification. The thin membrane prepared by the method has good mechanical properties, thermal stability and oxidation stability, and simultaneously the proton exchange rate and the proton conductivity of the membrane are improved; besides, the thin membrane has good dimensional stability and battery performance, and has an extensive application prospect in the field of fuel batteries.

The invention discloses a multi-component microalloyed bainite gray cast iron, a cylinder liner and a preparation method thereof. The bainite gray cast iron is composed of the following components by weight: 2.70%-2.95% of carbon, 1.80%-2.15% of silicon, 0.30%-0.55% Mn, larger than 0 but smaller than or equal to 0.1% of P, larger than 0 but smaller than or equal to 0.1% of S, 0.3%-0.5% of copper, 0.10%-0.18% of molybdenum, 0.01%-0.05% of boron, 0.35%-0.60% of chromium, 0.04%-0.10% of nitrogen, 0.2%-0.4% of niobium, 0.25%-0.35% of vanadium, 0.065%-0.025% of titanium, and the balance being Fe. The multi-component microalloyed bainite gray cast iron increases high-temperature structure stability of a bainite matrix, guarantees that high-temperature strength of the gray cast iron is at a relatively high level, has excellent high-temperature structure properties and low production cost, and is suitable for manufacturing high-temperature, high-speed and heavy-load engine cylinder liners.

The present invention provides lyophilized levofloxacin composition powder for injection, and relates to the technical field of drugs and drug production. The lyophilized levofloxacin composition powder comprises the following raw material components, by weight: 1.75-2.14 parts of esomeprazole sodium, 0.87-1.07 parts of chitosan nanoparticles, and 94.80-97.38 parts of water for injection. The lyophilized levofloxacin composition powder has the following advantages that: 1) the poor stability problem of the principal agent is overcome, and long-term storage is easily achieved; 2) the composition has an in vivo synergistic effect, can be provided for clinically treating stomach ulcers, gastroesophageal reflux diseases, duodenal ulcers and the like, and has a characteristic of rapid efficacy, and in vitro experiment results verify that the 40 mg of esomeprazole sodium containing the chitosan nanoparticles provides the same gastric acid secretion inhibition effect as the 60 mg of chitosan nanoparticle-free esomeprazole sodium; 3) the patient treatment period is shortened with the enhanced activity, such that the possibility of adverse reaction occurrence caused by esomeprazole sodium is reduced; and 4) the chitosan nanoparticles can be adopted to replace mannitol so as to be adopted as the lyophilized skeleton agent of the lyophilized powder injection, such that the activity effect of mannitol on human body is eliminated.