61results about How to "Form contributes to" patented technology

The invention discloses a novel preparation method of mesoporous active carbon. The novel preparation method comprises the step that carbohydrate, wood or bamboo as raw materials undergo a reaction in the presence of an acidic ionic liquid as an ion heat carbonization solvent and a catalyst; and the reaction product is activated by CO2 to form the mesoporous active carbon. The mesoporous active carbon has a specific surface area of 289-469m<2>/g and an aperture size of 3.55-3.62nm. The mesoporous active carbon has a rod-shaped, spherical or membrane-shaped structure because of different surfactants. The ionic liquid has a strong biomass dissolution capability, does not volatilize, can be recovered easily and has good heat stability. The ion heat carbonization reaction is adopted so that a reaction temperature is low; pressurization is avoided; and operation is simple. The mesoporous active carbon can be used in fields of environmental protection, energy storage, catalysis, foods and medicine.

The invention provides a method for preparing a porous granular composite material from red mud and fly ash as raw materials. The method utilizes cement waste as a binder and comprises uniformly mixing fly ash, red mud and the binder according to a mass ratio of fly ash to red mud of 10-30% and a mass ratio of the binder of less than or equal to 5%, carrying out granulation through a granulator toobtain raw material particles with the uniform diameters of 5-8mm, adding the raw material particles into a microwave activation reactor with the unit mass power of 5 to 20w/g, feeding water vapor into the microwave activation reactor, carrying out activation for 15-30min, and carrying out cooling at the room temperature to obtain the porous granular composite material. CaO in the red mud can promote the excitation of the fly ash activity. Through microwave heating, a part of metal oxides and silicon oxide in the red mud and fly ash can increase the particle material strength. The fly ash contains unburned carbon and through the microwave activation, the specific surface area of the particles is increased and the porous structure is formed. The produced porous granular composite materialhas the advantages of large specific surface area, strong adsorption property, good temperature resistance stability, simple processes, low energy consumption and environmental friendliness.

The invention provides a poly(lactic-co-glycolic acid)-based growth factor gradient release microsphere stent. The microsphere stent is prepared by a method comprising the following steps: firstly, preparing a poly(lactic-co-glycolic acid) (PLGA) homogeneous microsphere and a transforming growth factor (TGF)-beta3 and bone morphogenetic protein (BMP)-2/PLGA microsphere; dispersing the two microspheres into ddH2O to prepare suspension; injecting the suspension into a die with a filter device at the bottom; filtering by adopting the ddH2O, and regulating the position of the ddH2O in the die; accumulating the microspheres in the die; and sintering the microspheres by adopting absolute ethanol. According to the microsphere stent prepared in the invention, the original excellent biocompatibility of the PLGA is maintained, and the mechanical performance, osteochondral induction effect and seed cell carrying capability of the microsphere stent are remarkably improved. The microsphere stent has excellent biocompatibility, can carry an enough amount of seed cells, and is used for treatment of osteochondral defects caused by tumors, trauma, severe sepsis, congenital malformation and other various diseases.

Disclosed are a carbon nanotube-filled silicon/hollow carbon composite negative electrode material and a preparation method thereof. The composite negative electrode material is of a core-shell structure, wherein the core is a carbon nanotube cluster inlaid with silicon particles, and the shell is pyrolytic carbon. The preparation method comprises the following steps of uniformly mixing silicon particles, a metal catalyst and organic matters, and carrying out negative pressure heat treatment under a protective atmosphere to prepare the silicon/carbon nanotube cluster, adding the silicon/carbonnanotube cluster into a carbon source precursor solution to be uniformly stirred, and carrying out solid-liquid separation and drying, grinding, and then carrying out high-temperature carbonization treatment, and then dispersing in a hydrochloric acid solution, dissolving the metal catalyst, and performing washing and drying, and drying to obtain the carbon nanotube-filled silicon/hollow carbon composite negative electrode material. The prepared silicon-carbon composite negative electrode material can be used for improving the rate performance and the cycling stability when the silicon-carboncomposite negative electrode material is used for a lithium ion battery, and is simple in preparation process, wide in raw material source and suitable for large-scale production.

The invention relates to a partially covered stent used for treating bifurcation lesion coronary perforation and provided with a biological absorption film. The partially covered stent comprises a stent body composed of a tubular inner layer stent and a tubular outer layer stent, wherein the tubular inner layer stent and the tubular outer layer have identical length concentric line engraved nettedstructures, a tubular covering film is clamped between the inner layer stent and the outer layer stent, and the partially covered stent is characterized in that one end of the covering film is flushwith the stent body, and the length of the covering film accounts for 30-50% that of the stent body; the covering film is the biological absorption film; the biological absorption film is a poly-DL-lactic acid film. The partially covered stent has the advantages of being capable of covering a blood vessel perforation part to form a complete blood flow channel, effectively preventing closing and plugging of side branches, meanwhile easily realizing endothelialization in a stent body, and effectively reducing forming of thrombi.

The invention relates to a triazole ionic liquid-doped perovskite solar cell and a preparation method thereof. According to the preparation method, [EATZ]I is added into a perovskite precursor MAI solution, and a light-absorbing layer film is prepred through a spin-coating method, which is called an MA/EATZ method (E represents ethyl) for short. Because -NH2 in ionic liquid contains lone pair electrons, the unsaturated Pb<2+> defects in perovskite films can be effectively passivated under the action of a Pb-N coordination bond, and charge recombination is inhibited; in addition, due to the formation of the Pb-N coordination bond, the probability is provided for the self-assembly behavior of hydrophilic ILs on the surface of the perovskite, so that alkyl chains in the ILs are almost vertically distributed along the surface of the perovskite, and the improvement of the humidity stability of the perovskite solar cell is successfully realized. Meanwhile, due to the excellent hydrophilic performance of the ILs, the hydrophilicity of the perovskite precursor solution on the surface of a titanium dioxide electron transport layer is improved, and crystal nucleus formation and crystal growth are facilitated. And the crystallization rate of the perovskite in the thermal annealing process is reduced, so that the growth of large-size crystal grains is caused.

The invention discloses low-activation bainitic steel applicable to a neutron-irradiated environment and a preparation method thereof. A structural steel material has a matrix element of an element Fe, contains 2.5 to 3.5 percent (by weight) of Cr, 2.2 to 2.8 percent (by weight) of W, 0.2 to 0.25 percent (by weight) of V, 0.12 to 0.18 percent (by weight) of Ta, 0.40 to 0.80 percent (by weight) of Mn, 0.40 to 0.45 percent (by weight) of Si, 0.08 to 0.12 percent (by weight) of C and 0.01 to 0.05 percent (by weight) of N, and is suitably used in a fusion-reactor environment. Radioactive nuclides Mo, Ni, Cu, Nb and the like, which can be enabled to have long service life after being subjected to neutron irradiation, are strictly controlled in the componential formula of the steel, so as to guarantee that the low-activation bainitic steel applicable to the neutron-irradiated environment has a low-activation characteristic. A bainitic structural steel material has a favorable high-temperature property, particularly has a high-temperature croop property, can need no heat treatment after being welded, and is suitable for making large-sized components of a fusion-reactor vacuum container and the like.

The present invention relates to a flexible color filter substrate and to a method for manufacturing same. More particularly, the present invention relates to a flexible color filter substrate and method for manufacturing same, the flexible color filter substrate comprising a flexible substrate and R, G, B patterns formed on the flexible substrate. The R, G, B patterns are formed by a phase-change ink composition.

Fluid flow systems can include one or more resistance temperature detectors (RTDs) in contact with the fluid flowing through the system. One or more RTDs can be operated in a heating mode and a measurement mode. Thermal behavior of the one or more RTDs can be analyzed to characterize a level of deposit formed on the RTD(s) from the fluid flowing through the system. Characterizations of depositionon RTDs operated at different temperatures can be used to establish a temperature-dependent deposition profile. The deposition profile can be used to determine if depositions are likely to form at certain locations in the fluid flow system, such as at a use device. Detected deposit conditions can initiate one or more corrective actions that can be taken to prevent or minimize deposit formation before deposits negatively impact operation of the fluid flow system.

The invention relates to a normal-pressure removing method of a ceramic core in an aero-engine titanium alloy casting. The method comprises the steps that: (1) preparation of core removing liquid: thecore removing liquid contains the following chemical components in percentage by mass: 10-40% of NaOH or KOH or a mixed solution thereof, 3-5% of a penetrating agent, 3-5% of a dispersing agent, 3-5%of an auxiliary, and the balance of water; (2) ultrasonic and heating assisted normal-pressure core removal: a titanium alloy casting to be treated is put in the core removing liquid in step (1), thetemperature of the core removing liquid is 70-90 DEG C, and ultrasonic waves are intermittently applied; and (3) acid liquid neutralization and cleaning: the titanium alloy casting in step (2) is putin a 0.01 M dilute hydrochloric acid or citric acid solution accompanied with compressed air stirring for 20-40 minutes, and then, the titanium alloy casting is taken out and put in clear water to clean by 10-30 minutes. The normal-pressure removing method has the advantages of low cost of needed raw materials, simple process flow, implementation of the removing process under a normal pressure and low energy loss.

The invention relates to the field of composite steel plates, and particularly discloses a composite wear-resistant steel plate and a preparation method thereof. The composite wear-resistant steel plate comprises a base plate and a wear-resistant plate, wherein the wear-resistant plate is composed of the following components: Cr, Mn, Al, V, C, Zr, TiB2, MoSi2 and the balance Fe and inevitable impurities. The preparation method comprises the steps that Cr, Fe, Al, Mn, V, Zr and ethyl alcohol are mixed to form a first primary mixture; TiB2, MoSi2 and C are mixed to form a second primary mixture;the first primary mixture and the second primary mixture are mixed, heated, melted, pressed into a blank, annealed, cooled and ground to obtain a wear-resistant plate; and then the wear-resistant plate and the base plate are subjected to heating pressure welding to obtain the composite wear-resistant steel plate. The composite wear-resistant steel plate provided by the invention has the advantageof being good in wear resistance.

The invention provides an iron-based nanocrystalline alloy represented by the formula (I), wherein a, b and c represent the atomic percentage contents of the corresponding components respectively, a=86-87, b=12-13, c=1, and a+b+c=100; the atomic percentage content of B is 11-13, the atomic percentage content of Si is 0.01-1, the atomic percentage content of P is 0.01-1, the atomic percentage content of C is 0.01-1, the atomic percentage content of Cu is 0.01-1, and the atomic percentage content of Hf is 0.01-1. The invention also provides a preparation method of the iron-based nanocrystallinealloy. By adjusting the alloy composition and heat treatment system, the amorphous forming ability and the saturation magnetic induction intensity of the iron-based nanocrystalline alloy are improved;the formula (I) is represented by Fea(BSiPC)b(CuHf)c (I).

The invention discloses a novel injection composition for beautifying filling. The injection composition is prepared from, by weight, 12-18 parts of tranexamic acid, 5-12 parts of glutathione, 12-18 parts of vitamin C, 12-18 parts of NK cells, 5-12 parts of platelet-derived growth factors, 8-15 parts of epidermal growth factors, 3-8 parts of fiber binding protein, 2-6 parts of glass adhesion protein, 20-40 parts of protease-activated receptor and 2-7 parts of cross-linking agent. The novel injection composition solves the problems that an existing injection-type product is monotonous in function, only achieves the filling effect, and does not have the functions of oxidation resistance, ageing resistance and whitening. The novel injection composition not only has multiple effects of filling, resisting of wrinkles and ageing and whitening, but also has stable performance, safety and durability.

The invention discloses a foot skin-softening cream technology and relates to the technical field of skincare products. The process flow comprises the following steps: S1) pretreatment of raw ingredients; S2) aqueous phase operation; S3) oil phase; S4) emulsification, homogenizing and cooling; S5) adding of essence and preservative; S6) discharging; S7) storage and check of semi-finished products;S8) filling and covering; S9) external packing; S10) inspection of finished product; S11) storage and delivery. The invention designs a foot skin-softening cream with excellent effects of softening heel and foot skin, restraining the forming of thick and hard skin on foot and other parts, enhancing skin elasticity, preventing rhagadia and seasoning crack and removing necrotic tissues and scale ofskin; the foot skin-softening cream designed by the invention has excellent heat resistance and cold resistance; the oil-water separating phenomenon is difficult to occur in the cream; the foot skin-softening cream is low in limit of toxic substance, is harmless to human body, is beneficial to skin softening and repairing and is capable of supplementing comprehensive nutrition and water to skin in time.