30results about How to "Does not dissolve" patented technology

The present invention provides a high-voltage lithium cobaltate positive electrode material, which is a compound structure of a doped lithium cobaltate substrate and a surface coating layer, wherein the general formula of the doped lithium cobaltate substrate is Li1+zCo1-x-yMaxMbyO2, x is more than or equal to 0 and is less than or equal to 0.01, y is more than or equal to 0 and is less than or equal to 0.01, z is more than or equal to -0.05 and is less than or equal to 0.08, Ma is a doped element with unchanged valence, and is at least one selected from Al, Ga, Hf, Mg, Sn, Zn and Zr, Mb is adoped valence-changing element, and is at least one selected from Ni, Mn, V, Mo, Nb, Cu, Fe, In, W and Cr, and the surface coating layer is a high-voltage (more than 4.5 V) positive electrode material. According to the present invention, the element with unchanged valence is doped through substitution, such that the layered structure distortion caused by lithium removing can be minimized; the valence-changing element is subjected to gap doping, such that the Co<3+> oxidation is blended and delayed during the charging; and the surface coating layer has the stable structure at the voltage of more than 4.5 V, can separate the electrolytic solution from the lithium cobaltate substrate, can reduce the side reaction between the electrolytic solution and the lithium cobaltate substrate, can suppress the dissolution of the transition metal, and further can provide electrochemical energy.

The present invention relates to a composite metal palladium membrane or alloy palladium membrane, it is characterized by that the external surface of porous base membrane is almost completely covered with metal palladium membrane or alloy palladium membrane, and said metal palladium membrane or alloy palladium membrane can be deposited in the pore channel of base membrane in small quantity, and its preparation method includes the steps of utilizing sensibilization and activation process to form palladium nucleus on the external surface of porous base membrane and adopting chemically-plating process to form palladium membrane. Said invention also provides the characteristics of said preparation method.

The invention provides a preparation method of electromagnetic composite hollow microspheres, relates to a preparation method of a composite hollow material and aims to solve the problems of poor conductivity, high density and high falling possibility of magnetic particles of the existing composite hollow material. The preparation method comprises the following steps: 1, preparing polystyrene microspheres; 2, dispersing the polystyrene microspheres in concentrated sulfuric acid, and sulfonating; 3, preparing a magnetic Fe3O4 nano particle suspension; 4, adding the sulfonic-group-containing SPS microspheres and the Fe3O4 nano particle suspension into a water solution; 5, adding ethanol and ammonia water, and dropwisely adding ethyl orthosilicate; 6, adding into a PVP-containing ethanol solution, and stirring; and 7, mixing an aniline solution with the PVP modified magnetic microspheres, dropwisely adding ammonium persulfate, drying, adding N,N-dimethylformamide, and soaking. For the prepared hollow microspheres, the conductivity is 0.01-1.0 S / cm, the density is low, and the magnetic particles are less prone to fall; and the hollow microspheres are mainly used in the fields of light-weight electromagnetic materials, photonic crystals, wave-absorbing materials and the like.

The invention relates to an electrochemical battery and a manufacture method thereof. The electrochemical battery using a small-size exterior package container discharges on high current. The electrochemical battery is composed of the exterior container, a battery core (7) and electrolyte, wherein the exterior container is composed of a seat (1) and a cover (6), the battery core (7) is mounted in the seat (1), the electrochemical battery comprises at least one lining membrane (2) and a connection terminal (4), the lining membrane (2) is formed on the inner side surface of the seat (1) and composed of an electronic pipe metal, the connection terminal (4) is arranged on the outer side surface of the seat (1) and electrically connected with the lining membrane (2), and a battery core lead (8) being an extension part of the battery core is welded with the lining membrane (2).

A precoated aluminum plate (1) has a precoated film (3) on an aluminum plate (2), wherein the precoated film includes molecular cross-linked base resin (4) and particles (5), wherein said precoated film (3) includes 50% or more of gel fraction and has a surface roughness of 0.25 micrometers or more in the arithmetic average (Ra).

The invention discloses a preparation method of hard alloy with orientational distribution of featured crystal surfaces of WC crystal grains and belongs to the technical field of hard-alloy metallurgy. The preparation method comprises the following steps of: by adopting a mixture of tungsten oxide, cobalt oxide and carbon material as a raw material, carrying out mixed ball grinding; carrying out cold pressing on ball-ground mixed powder to form a blank, and putting the blank in a vacuum reaction furnace to carry out in-situ reduction and carbonization reaction to obtain WC-Co composite powder containing carbon-deficient phase components under lower temperature; and finally, putting the prepared composite powder in a sintering system which can apply sintering pressure to carry out in-situ reaction sintering densification on the powder to obtain the hard-alloy block material with orientational distribution of the featured crystal surfaces of the WC crystal grains. The preparation method has the advantages of simple process step, short preparation period and low sintering temperature and the like in the aspects of preparing the composite powder and sintering the hard-alloy block material; and the hard-alloy block prepared by sintering has controllable size of the WC crystal grains, obvious anisotropy of structures and mechanical properties and strong repeatability.

The invention provides a method for improving the quality of a rare earth metal product and belongs to the technical field of rare earth electrolysis. An isolation layer is arranged in a graphite electrolytic cell, so that the problems that the graphite electrolytic cell is involved into a reaction, so that carbonized rare earth is generated, and the quality of the rare earth metal product is severely affected are prevented. By means of the method, a pollution source is effectively isolated from the product from the source; product pollution is reduced; the product quality is obviously improved; and added materials are environment-friendly materials, and no environmental pollution is caused in the using process.

The invention relates to a honeycomb film made of a biodegradable polymer which has biodegradation properties as an anti-adhesion membrane for preventing adhesion after an operation, is excellent in handling properties, and exhibits a satisfactory adhesion preventive effect stably over a desired period of time, and to a production process of the same. Above all, the invention provides an anti-adhesion membrane of a honeycomb film made of polylactic acid as a biodegradable polymer and a phospholipid and a production process of the same.

Disclosed is an oxide- and / or nitride-based carrier for an electrode catalyst, which is used for an electrode of a solid polymer fuel cell (PEFC). The carrier for an electrode catalyst is characterized by being composed of a fused body of primary particles of oxides of one or more metals selected from among rare earth elements, alkaline earth elements, transition metals, niobium, bismuth, tin, antimony, zirconium, molybdenum, indium, tantalum and tungsten. The carrier for an electrode catalyst is also characterized in that at least 80% of the primary particles of metal oxides having a size of 5-100 nm are fused and bonded together, thereby forming chain-like or tufted structures each of which is composed of 5 or more of the primary particles.

The invention specifically relates to a high-efficient extraction agent for synchronous extraction of four effective functional components from cape jasmine fruits, and an extraction, separation and purification process. The key of the invention is to innovate a new extraction agent, and a water extraction technology containing a certain of stabilizer and / or cosolvent is adopted for replacing a percolation extraction or alcohol extraction process which is commonly used in the current production process, so that the production period is greatly reduced and the production and processing cost is effectively lowered; and the invention further comprises a process technology integrating online membrane separation and concentration with double-column tandem column chromatography for purification and integration, which can realize high-efficient preparation of various functional components from cape jasmine. The extraction agent disclosed by the invention has the advantages of low cost, small using quantity and no residues, and can obviously improve the dissolution rate of terpenoid and phenol compounds in raw materials of the cape jasmine fruits and enable the product extraction rate to exceed 95%; and the method is also suitable for extraction, separation and preparation of the functional components in other parts of the raw materials in addition to the cape jasmine fruits.

The invention discloses steel for a non-quenched-and-tempered crankshaft of an engine. The steel is prepared from the chemical elements including, by weight, 0.37%-0.42% of C, 0.50%-0.65% of Si, 1.30%-1.50% of Mn, 0.045%-0.060% of S, 0.120%-0.150% of Ni, 0.010%-0.025% of P, 0.10%-0.20% of Cr, 0.015%-0.050% of Mo, 0.03%-0.20% of Cu, 0.120%-0.150% of Ni, 0.08%-0.13% of V, 0.010%-0.015% of Al, less than or equal to 0.010% of Ti and higher than or equal to 150ppm of N, the Al-to-N ratio is smaller than or equal to 1, and the Ti-to-N ratio is smaller than or equal to 0.67. The invention further discloses a preparation method of a forging of the steel for the non-quenched-and-tempered crankshaft of the engine. The strength of the crankshaft is enhanced, the toughness and plasticity of the crankshaft are improved, and the purpose of improving the comprehensive mechanical property of the crankshaft is achieved.

The invention relates to the technical field of mouthwash bottles, in particular to a sodium bicarbonate mouthwash bottle which comprises a containing bottle body. A threaded water pouring pipe whichis vertically arranged is integrally formed at the top end of the containing bottle body, a sealing cover is in threaded connection with the threaded water pouring pipe, a vertical connecting rod which is vertically arranged is arranged at the central position of the top wall of an annular threaded groove, and an annular groove is formed in the portion close to the top end of a rod body of the vertical connecting rod. Two mutually symmetrical inverted puncture bodies are integrally formed at the bottom end of the vertical connecting rod, a sealing separation membrane is arranged on the portionclose to the bottom end of the rod body of the vertical connecting rod, and left and right mutually symmetrical suspension hanging rings are also integrally formed on the portions close to the top end of the bottle body of the containing bottle body. A user can carry out a large number of sodium bicarbonate mouthwash bottles to go out, instant assembly and use are realized, and convenience is brought to the user.

Characters of the invention are that LiFePO4 prepared through method of high temperature solid phase is olivine type structured active material of battery; the anode material of lithium ion battery in use for miner's lamp gives full play to features of simple preparing technique, low cost, high safety performance and environment friendly. With LiFePO4 being as anode material and packed by aluminum-plastic, lithium ion battery for miner's lamp can pass each security testing. The material possesses foreground applicable to anode material of lithium ion battery in use for miner's lamp.

The invention provides a PVDF-HFP / PMMA / CMC composite membrane and a preparation method thereof, which belong to the technical field of composite membranes, and include PVDF-HFP / PMMA thin films and CMC thin films arranged in layers. The composite membrane of the present invention can store more ions, improve the liquid absorption rate and liquid retention rate, and the more electrolyte solution absorbed, the corresponding free Li + The greater the number, the smaller the bulk resistance of the composite membrane, and the greater the corresponding ionic conductivity. The data of the embodiment shows: the crystallinity of the composite film is low, the ion conductivity reaches 4.388mS / cm, and the electrochemical stability window is 4.8V; the first discharge specific capacity of the half-cell assembled by the composite film is 162.5mAh / g; After 100 cycles, the capacity retention rate is 86.22%. When the current rate is 2C, the discharge specific capacity of the composite film is 139.7mAh / g; the composite film can be safely applied to lithium batteries.

The invention discloses a steel for an engine non-quenched and tempered crankshaft, which comprises the following chemical elements in terms of percentage content: C: 0.37-0.42; Si: 0.50-0.65; Mn: 1.30-1.50; S: 0.045-0.060; Ni : 0.120~0.150; P: 0.010~0.025; Cr: 0.10~0.20; Mo: 0.015~0.050; Cu: 0.03~0.20; Ni: 0.120~0.150; V: 0.08~0.13; Al: 0.010~0.015; 0.010; N: ≥150ppm; Al-N ratio ≤ 1, Ti-N ratio ≤ 0.67. The invention also discloses a method for preparing a steel forging for an engine non-quenched and tempered crankshaft. The invention increases the strength of the crankshaft, improves its toughness and plasticity, and achieves the purpose of improving the comprehensive mechanical properties of the crankshaft.

The invention discloses a preparation method of hard alloy with orientational distribution of featured crystal surfaces of WC crystal grains and belongs to the technical field of hard-alloy metallurgy. The preparation method comprises the following steps of: by adopting a mixture of tungsten oxide, cobalt oxide and carbon material as a raw material, carrying out mixed ball grinding; carrying out cold pressing on ball-ground mixed powder to form a blank, and putting the blank in a vacuum reaction furnace to carry out in-situ reduction and carbonization reaction to obtain WC-Co composite powder containing carbon-deficient phase components under lower temperature; and finally, putting the prepared composite powder in a sintering system which can apply sintering pressure to carry out in-situ reaction sintering densification on the powder to obtain the hard-alloy block material with orientational distribution of the featured crystal surfaces of the WC crystal grains. The preparation method has the advantages of simple process step, short preparation period and low sintering temperature and the like in the aspects of preparing the composite powder and sintering the hard-alloy block material; and the hard-alloy block prepared by sintering has controllable size of the WC crystal grains, obvious anisotropy of structures and mechanical properties and strong repeatability.

The present invention provides a PVDF-HFP / PMMA / CMC composite film and a preparation method thereof, and application of a PVDF-HFP / PMMA / CMC composite film, belonging to the technical field of compositefilms. The PVDF-HFP / PMMA / CMC composite film comprises a PVDF-HFP / PMMA film and a CMC film. The composite film can store more ions so as to improve the liquid absorption rate and the liquid retentionrate, and the more electrolyte is absorbed, the number of the corresponding free Li+ is larger, the body resistance of the composite film is smaller, and the corresponding ion conductivity is larger.The data of the embodiment shows that: the degree of crystallinity of the composite film is low, the ion conductivity reaches 4.388Ms / cm, and an electrochemical stability window is 4.8V; the first specific discharge capacity of the half cell formed by the composite film is 162.5mAh / g; after the 0.2C cycle for 100 times, the capacity retention ratio is 86.22%; when the current rate is 2C, the specific discharge capacity of the composite film is 139.7mAh / g; and the composite film can be safely applied to a lithium battery.

The invention provides a method for improving the quality of a rare earth metal product and belongs to the technical field of rare earth electrolysis. An isolation layer is arranged in a graphite electrolytic cell, so that the problems that the graphite electrolytic cell is involved into a reaction, so that carbonized rare earth is generated, and the quality of the rare earth metal product is severely affected are prevented. By means of the method, a pollution source is effectively isolated from the product from the source; product pollution is reduced; the product quality is obviously improved; and added materials are environment-friendly materials, and no environmental pollution is caused in the using process.

The invention specifically relates to a high-efficient extraction agent for synchronous extraction of four effective functional components from cape jasmine fruits, and an extraction, separation and purification process. The key of the invention is to innovate a new extraction agent, and a water extraction technology containing a certain of stabilizer and / or cosolvent is adopted for replacing a percolation extraction or alcohol extraction process which is commonly used in the current production process, so that the production period is greatly reduced and the production and processing cost is effectively lowered; and the invention further comprises a process technology integrating online membrane separation and concentration with double-column tandem column chromatography for purification and integration, which can realize high-efficient preparation of various functional components from cape jasmine. The extraction agent disclosed by the invention has the advantages of low cost, small using quantity and no residues, and can obviously improve the dissolution rate of terpenoid and phenol compounds in raw materials of the cape jasmine fruits and enable the product extraction rate to exceed 95%; and the method is also suitable for extraction, separation and preparation of the functional components in other parts of the raw materials in addition to the cape jasmine fruits.

The invention discloses a method for applying starch modified stuffing in paper making, which comprises the following steps: firstly, mixing cooked oxidized starch and stuffing to prepare a coating, evenly coating the coating on the surface of paper, then drying the paper, and breaking and scattering the coated paper to replace partial pulp to be added into a paper making system. The surface of the modified stuffing is wrapped by the starch, so the dissolution phenomenon does not occur under the water temperature condition of a paper machine system, the loss amount of the stuffing in a white water system is reduced, the combination capabilities between the fibers and between the fiber and the stuffing are increased when the stuffing is added into the paper, the drainage property of a system is improved, and the production cost is lowered.

The invention provides threaded hole protection glue and a preparation method and application thereof. The threaded hole protection glue is prepared from the following components in percentage by mass: 15 to 20 percent of 2-acrylamide-2-methylpropanesulfonic acid, 16 to 23 percent of amide monomer, 15 to 20 percent of acrylate, 5 to 8 percent of trehalose, 10 to 20 percent of transparent powder, 0.5 to 2 percent of fumed silica and 2 to 3 percent of initiator. The preparation method comprises the following steps: mixing 2-acrylamide-2-methylpropanesulfonic acid, trehalose and water to obtain a mixture A; mixing the mixture A, fumed silica and transparent powder to obtain a mixture B; then mixing the mixture B, an amide monomer and acrylate to obtain a mixture C; and mixing the mixture C with an initiator to obtain the threaded hole protection glue. The threaded hole protection glue provided by the invention is resistant to high temperature, odorless, non-toxic, environment-friendly and safe, and can meet the processing requirements of surface treatment of structural parts of precise electronic products.

The invention discloses a method for manufacturing a planar micro-fluidic chip based on ink-jet printing, and belongs to the fields of material surface treatment, microelectronic equipment and biochemical detection, and solves the problems of complex process, high cost and poor durability of the chip in the preparation process of the existing planar micro-fluidic chip. The method comprises the following steps: cleaning and drying a substrate; polishing the dried substrate and performing ultrasonic cleaning with deionized water; putting the ground substrate and one or more of deionized water, ammonia water, a 0.1-5M sodium hydroxide solution and a 0.1-5M potassium hydroxide solution into a polytetrafluoroethylene closed container for hydro-thermal treatment, taking out the substrate after time t, and drying the substrate at constant temperature to obtain a substrate with a nano coarse structure; preparing a super-hydrophobic pattern on the substrate through a micro-piezoelectric ink-jet printer; and after the substrate is printed, performing constant-temperature drying to obtain the planar micro-fluidic chip with the channel. The method is suitable for the technical field of material surface treatment.

A liquid tobacco composition comprising tobacco dissolved in an ionic liquid. Removal of selected tobacco components is assisted by dissolving the tobacco in an ionic liquid. Tobacco from which selected components have been removed can be regenerated from the liquid tobacco composition by separating the tobacco and the ionic liquid.

The present invention particularly relates to a nature crocin extraction separation method and preparation for a crocin blood fat reduction drug. The extraction separation method comprises: carrying out cleaning and impurity removing on dried cape jasmi fruits, extracting with deionized water, filtering to removing residue, carrying out online membrane separation and concentration fusion and macroporous absorption resin chromatography purification, and finally carrying out low-temperature spray drying to prepare the crocin. According to the present invention, the key of the invention is to create the extraction agent, and the water containing a certain auxiliary solvent is adopted to extract the crocin, wherein the extraction rate can be more than 95%; the online membrane separation and concentration fusion and the macroporous absorption resin chromatography purification are integrated; the high purity crocin production method has a characteristic of low cost and is suitable for industrial expansion production; and the compounded pharmaceutical preparation has effects of significant blood fat reduction, no side effect, effective cardiovascular and cerebrovascular related disease prevention, and blood circulation promotion, and is the preferred health care drug for crowds with high blood pressure, high blood fat and high blood sugar.

The invention discloses a high-corrosion-resistant zinc-aluminum-magnesium hot-dipped steel plate and a production method thereof, which includes a substrate and a coating coated on the substrate, and is characterized in that the mass percentage of the chemical composition of the coating is: Al 1.8~2.3%, Mg 1.2~1.8%, RE 0.01~0.08%, Cu 0.003~0.008%, the balance is Zn and other unavoidable impurities; Cu is added to the plating solution in nanometer form when the plating solution melts . Cu in the coating of this steel plate is added in the form of nano-copper when the plating solution melts. Since the temperature of the zinc solution is low when it is added, the morphology of Cu particles can be guaranteed, and its fine and dispersed characteristics can play a role in precipitation strengthening, thereby Improve the hardness of the coating; the addition of rare earth RE can refine the coating structure and improve the fluidity of the plating solution, thereby more effectively improving the corrosion resistance of the coating. The structure in the coating of the product gained by this method is: primary Zn, Zn / MgZn 2 Binary eutectic, Zn / Al / MgZn 2 Ternary eutectic and nano-copper; the corrosion resistance is equivalent to 10 to 15 times that of pure zinc plates of the same thickness.

The invention provides a screw hole protective adhesive, a preparation method and application thereof. The screw hole protective glue includes the following components in mass percentage: 15-20% of 2-acrylamide-2-methylpropanesulfonic acid, 16-23% of amide monomer, 15-20% of acrylate, trehalose 5-8%, transparent powder 10-20%, fumed silica 0.5-2% and initiator 2-3%. The preparation method comprises the following steps: mixing 2-acrylamide-2-methylpropanesulfonic acid, trehalose and water to obtain a mixture A; mixing the mixture A, fumed silica and transparent powder to obtain a mixture B; and then Mixing the mixture B, amide monomer and acrylate to obtain a mixture C; mixing the mixture C with an initiator to obtain the screw hole protective glue. The screw hole protective adhesive provided by the invention is high temperature resistant, odorless, non-toxic, environmentally safe and can meet the processing requirements for surface treatment of structural parts of precision electronic products.

Provided is a lithium cobalt oxide positive-electrode material, said material being a composite structure having a doped lithium-cobalt-oxide substrate and surface coating; the general formula of said doped lithium-cobalt-oxide substrate is Li 1+zCo 1-x-yMa xMb yO 2, wherein 0≤x≤0.01, 0≤y≤0.01 and -0.05≤z≤0.08; said Ma is a doped invariable-valence element, at least one of Al, Ga, Hf, Mg, Sn, Zn, and Zr; said Mb is a doped variable-valence element, at least one of Ni, Mn, V, Mo, Nb, Cu, Fe, In, W, and Cr; the surface coating layer is a high-voltage (>4.5 V) positive-electrode material. By means of substitution doping of the variable-valence element, distortion resulting from delithiation of the layered structure is reduced by the maximum extent; the variable-valence element is doped by means of gaps, and during the process of charging, the oxidation of Co 3+is reconciled and delayed. The surface coating layer of the high-voltage positive-electrode material has a stable structure at voltages of 4.5 V or higher, and is capable of isolating an electrolyte solution and a lithium-cobalt-oxide substrate, thus reducing side reactions between the two and inhibiting the dissolution of transition metals; it also provides electrochemical energy.