113results about How to "Flexible preparation method" patented technology

The present invention relates to a new-type functional composite face fabric with several functions of resisting static electricity, resisting radiation, resisting bacteria, killing bacteria, filtering toxic material and protecting health, etc. Said composite face fabric includes functional fibre layer, adhered base layer or surface layer face fabric, the above-mentioned all the layers and combined together by means of physical, chemical or mechanical method so as to obtain the invented product.

The invention discloses a polypropylene/ organic montmorillonite nano composite material which is prepared by the components in part by weight: 80-100 parts of polypropylene, 1-15 parts of organic montmorillonite, 0.02-0.10 part of organic peroxide initiator, 2.0-5.0 parts of cross-linking agent and 5-15 parts of compatilizer. The invention also discloses a preparation method of the polypropylene/ organic montmorillonite nano composite material. The polypropylene/ organic montmorillonite nano composite material has higher crystallization temperature, toughness and modulus as well as better strength, realizes low cost and high performance of polypropylene foam material, and improves the application competitiveness of polypropylene plastic.

The invention discloses a long-acting sustained controlled release formulation of donepezil-like composition and a process for preparation. The composition is in the shape of micro-granular. According to the measurement by weight, the invention contains donepezil-like compounds 0.5-5 parts, carrier material of the sustained controlled release formulation 1-500 parts, and further contains other common excipient in pharmacy. The composition is used for anti senile dementia. The frequency of donepezil-like compounds is reduced, and the periodic time of administering medicament is prolonged, the compliance and conformability of the patient are improved, and the bioavailability and the therapeutic index of the donepezil are promoted. Meanwhile the invention discloses a plurality of processes for the preparation of long-acting sustained controlled release formulation of donepezil-like compounds. The process for preparation is flexible. Common processing equipment and commercial scale can be adopted. The production efficiency is high and the quality keeps steady. The invention can be directly or secondly used for making injection or medicament for oral administration.

A series of Shuxinding sulfate medicines for preventing and treating arrhythmia includes the solid medicine in the form of tablet, capsule, pill or particle with high stability and biologic utilization rate, and the target medicine in the form of microball, millimicro ball, liposome, or microemulsion with high target performance and low toxic by-effect.

The invention relates to high-strength and high-toughness foam aluminum and a preparation method thereof. The density of the foam aluminum is 0.4-1 g/cm3; the average size of foam holes is 2-5 mm; the hole walls consist of aluminum basal bodies and reinforcing particles dispersed therein; and the reinforcing particles and the aluminum basal bodies form high-strength-bonded metallurgy interfaces. Firstly, aluminum basal body powder, the reinforcing particles and foaming agent particles are uniformly mixed and coldly pressed to prepare a rough blank; and the rough blank is thermally deformed to prepare a foamable prefabricated body after vacuum heat degassing, and is heated and foamed to prepare the foam aluminum. The product has the characteristics of high strength, high toughness and high energy absorption, and can be applied to light support structural parts or high-damping vibration reduction and energy absorption parts in the fields of vehicles, rail traffic and spaceflight war industry; and the preparation method is flexible, strong in designability, nearly suitable for preparation of all alloy system foam aluminum, can randomly add matched reinforcing particles according to the alloy performance, and can be used for customizing the foam aluminum with different mechanical performances to satisfy the demands in all fields.

The invention discloses a preparation method for an alternate multi-layered polymer microcellular foaming material. The preparation method comprises the steps of: selecting a physical layer raw material and a foaming layer raw material with difference of a certain Vicat softening point or a melting point; forming the raw materials into a sample with an alternate multi-layered structure; putting the sample in a high pressure kettle and introducing a supercritical fluid; maintaining the pressure for a period of time at a certain temperature; and the quickly relieving the pressure so as to obtain the polymer foaming material with the physical layers and the foaming layers which are alternately arranged. Compared with an existing alternate multi-layered co-extruding forming method by adopting a chemical foaming agent, the alternate multi-layered polymer microcellular foaming method can reduce the average cell diameter of a foamed product and improve the cell density and the expansion ratio. In addition, by taking the supercritical fluid as a foaming agent, no irritant or toxic gas will be generated in the production process, so that the method is green and environmental-friendly and relatively low in cost. The involved equipment is convenient to use, the machining process is low in energy consumption and high in efficiency, and the preparation method can realize continuous production, quantity production and large-scale production.

The invention provides a method for preparing a monolith catalyst. The method includes the following steps that firstly, catalyst powder is mixed with an adhesive, surfactant and a solvent to obtain slurry; secondly, a carrier is washed with water and dried to obtain a preprocessed carrier; thirdly, the carrier is soaked in the slurry and taken out, and the slurry in channels of the carrier is blown out by means of compressed air; fourthly, the carrier obtained in the third step is dried and baked, and the monolith catalyst is obtained. The monolith catalyst produced through the method is good in catalytic activity, investment cost for catalyst industrial production can be greatly reduced, investment is only 5-10% that of a complete production line under the same productivity condition, and the method can be used for preparing monolith catalysts of different types, particularly SCR monolith catalysts.

The invention discloses a method for preparing a molybdenum-disulfide (MoS2) nanotube. The method is characterized by comprising the following steps of preparing a C-MoS2 coaxial nanotube wrapped by homogeneous MoS2 by taking a fibrous carbon (C) nanomaterial as a template, and calcining the C-MoS2 coaxial nanotube at a high temperature in a flowing CO2 atmosphere to remove C to obtain the MoS2 nanotube. The thickness of the wall of the MoS2 nanotube prepared by adopting the method can be controlled by changing the thickness of the MoS2 wrapping layer in the C-MoS2 coaxial nanotube. Because the raised surface or sharply bent part of the fibrous C nanomaterial can not be totally wrapped by MoS2, the prepared MoS2 nanotube has structure defects correspondingly, but the number of active spots on the edge of the MoS2 nanotube can be increased due to the structure defects so that the MoS2 nanotube has excellent optical and catalytic properties.

The invention discloses a preparation method of a super-hydrophobic PVDF (polyvinylidene fluoride) membrane with a micro-nano structure. The preparation method comprises the steps of: (1) preparing membrane casting liquid: putting hydrophobic inorganic nano particles in a polar aprotic solvent, adding a pore-foaming agent for stirring to form a suspension, adding PVDF powder into the suspension, performing uniform stirring in a thermostatic waterbath, standing and defoaming to form the membrane casting liquid, and (2) performing membrane casting liquid striking-up to form a nascent flat sheetmembrane or spinning to form a nascent hollow fiber membrane yarn, remaining in air, putting in an alcohol aqueous solution for phase inversion and performing water cleaning, soaking and drying. The surface and internal walls of pore channels of the membrane prepared have the micro-nano structures, so that super-hydrophobicity of the surface and the internal walls of pores of the membrane is achieved; the wettability resistance of the membrane is improved entirely; and the membrane is applicable to the fields of membrane distillation, support liquid membranes, permeation distillation, membraneabsorption and the like. In addition, the preparation method of the super-hydrophobic membrane is simple, flexible, low in cost and applicable to the preparation of flat sheet membranes and hollow fiber membranes.

The invention relates to a preparation method of developing polyurethane, which pertains to the technical field of high polymer material. The preparation method comprises the steps that: firstly, polymers, diatomic alcohol and diisocyanate are mixed; the mixture of the diatomic alcohol and the diisocyanate is stirred and reacts under the protection of nitrogen gas to obtain a prepolymer; after the temperature thereof is raised, the prepolymer is added with a chain extender and stirred for reaction; and the polymers are cured. As the chain extender contains developing atoms and developing groups are connected with the polyurethane by the effect of chemical bonds, the developing polyurethane prepared by the preparation method has long lasting development effect, good stability, biocompatibility and anticoagulant performance, arouses no inflammation in human bodies, is biological aging resistant and animalcule resistant, has good physical properties, can be sterilized by usual methods, is easy to be processed and takes advantages over non-developing polyurethane when being applied to heart valves, conduits and vascular stents. The preparation method is flexible, effective, simple and easy to be realized.

The invention provides a modified graphene composite polyethylene material, which comprises, by weight, 75-100 parts of polyethylene, 0.5-2 parts of graphene, 1-4 parts of a coupling agent, 4-10 partsof a compatilizer, 0.8-2 parts of a dispersing agent, 2-5 parts of a flocculating agent and 3-5 parts of a stabilizer. Compared with the method in the prior art, the method of the invention has the following characteristics that graphene is used as the antistatic agent and the reinforcing agent, and is organically modified with the coupling agent, the maleic anhydride grafted EVA is used as the toughening compatilizer to form the antistatic toughening and reinforcing system of the polyethylene material, and finally the polyethylene material obtains the stable physical and chemical propertiesthrough the flocculating agent and the stabilizer, so that the composite polyethylene material with good mechanical properties and good antistatic properties is prepared in the case of the feeding ofa small amount of the modifier.

The invention provides a preparation method of cross-linking microspheres based on microfluidics. The preparation method comprises the following steps of pushing an injector of a water phase solutionand an oil phase solution which are prepared in advance through a pushing and injecting pump device, enabling a water-oil two-phase solution to form water-in-oil type emulsion liquid drops at an exitchannel of a micro-fluidic chip, and performing illumination at an ultra-violet curing lamp to prepare PEGDA photo-crosslinking microspheres; and enabling the PEGDA photo-crosslinking microspheres tobe charged into a sodium hydroxide solution so as to obtain PEGDA-chitosan cross-linking microspheres, wherein the diameter range of the cross-linking microspheres is 240-440[mu]m, and is controlled through the flow velocity and the flow velocity ratio of the water phase solution and the oil phase solution. The preparation method is flexible and easy to operate. A preparation method of an injecting type chondrocyte composite body comprises the following steps of A1, preparing the cross-linking microspheres; and A2, enabling the cross-linking microspheres to carry chondrocyte. Biological cellsare carried on the cross-linking microspheres having a dual-network hydrogel system, and through proliferation and disintegration of the biological cells, the injecting type cell composite body can beprepared, and is a novel tissue repair material which is widely applied.

The invention relates to a flame-retardant composite material floor with a sound isolating function and a preparation method thereof. The composite material floor comprises skin, a core material and adamping rubber layer, wherein the damping rubber layer is arranged between the skin and the core material and is separately connected to the skin and the core material in a bonding manner; the skin is prepared from a continuous fiber enhanced phenolic resin prepreg; the damping rubber layer is prepared from a polybasic damping rubber material by taking nitrile rubber as a base body; the core material is prepared from an aramid fiber paper honeycomb or a structural foam plastic. The composite material floor disclosed by the invention is simple in preparation process and good in economical benefit, and has the characteristics of being light in weight, load-bearing, environmental corrosion resistant, impact resistant and excellent in bending and compressing properties and the like. In particular, the sound isolating ability of the integral floor can reach up to 33dB which is remarkably higher than that of a conventional composite material floor. The composite material floor meets the demand on sound isolation and noise reduction in a traffic vehicle compartment, and the released smog and toxic gas are relatively low, and the flame-retardant composite material floor is excellent in flame retardance and can be fully popularized and applied to the field of rail traffic.

The invention relates to an arnebia root handmade soap and a production method thereof. The invention is characterized in that: main raw materials contain soak oil, coconut oil, palm oil, sodium hydroxide and pure water, and the water is used as a water phase. The production method comprises the following steps: arnebia roots are placed in the soak oil and sealed, the immersion time is longer than 3 months, during the immersion time, bottles are frequently shaken for ensuring uniform contact; after immersion, the arnebia roots are filtered, the soak oil, the coconut oil and the palm oil are uniformly mixed at 40-50 DEG C, sodium hydroxide is dissolved by alkaline hydrolysis and is added into the mixed oil, and the temperature difference does not exceed 10 DEG C; an eggbeater is used for uniformly stirring to a dense state, and the materials are poured into a soap die, after moulding, the materials are taken out, the maturity period is 4-8 weeks, and after maturation, the soap can be used. The soap does not contain any additives and does not irritate skin; the arnebia roots have substantial efficacies for removing acne and diminishing inflammation; the soap can improve skin tension and prevent skin roughness, and has a certain effect for eczema. The production method is flexible, and the soap can be produced at home.

The invention relates to a multilayer solid electrolyte, a preparation method thereof and a solid lithium battery, and belongs to the technical field of lithium batteries. The preparation method of the multilayer solid electrolyte comprises the following steps: 1) according to the composition of each layer of solid electrolyte in the multilayer solid electrolyte, preparing a solid electrolyte membrane layer with the same composition as each solid electrolyte layer; (2) pressurizing each solid electrolyte membrane layer prepared in the step (1) to obtain a densified solid electrolyte membrane layer; and (3) pressurizing and compounding the densified solid electrolyte membrane layers to obtain the solid electrolyte membrane. According to the preparation method of the multilayer solid electrolyte, the solid electrolyte membrane of each layer is compressed and compacted and then is compounded, so that the compactness of the solid electrolyte of each layer is improved, extension deformation of the solid electrolyte of a ductile layer caused by different pressures required in the process of compressing and compacting the solid electrolyte of each layer is avoided, and different electrolyte systems can be adapted conveniently.

The invention provides a preparation method for a monolithic catalyst sample. The method mainly comprises the following steps of: preparing small-volume honeycomb ceramic; and loading catalyst active ingredients onto a carrier. The coating of the integral catalyst sample prepared with the method uniform, and the surface property, pore canal structure and the like are extremely approximate to those of a large monolithic catalyst; and when the monolithic catalyst sample is used for evaluating a fixed-bed micro-reactor, the catalytic performance and structural representation result of the monolithic catalyst sample can be associated with the large monolithic catalyst, and the aims of truly lowering the research and development cost and shortening the research and development period are fulfilled.

A biodegradable ground-covering film for tobacco is prepared from corn starch, plasticizer, ethene-vinylol copolymer, compatibilizing modifier and clay through proportionally mixing, and moulding or doctor blading.

The invention discloses an epoxy organic silicon resin of which the structural formula is disclosed in the specification. The invention also discloses a preparation method of the epoxy organic silicon resin, which comprises the following steps: proportionally adding 1,3,5,7-tetramethylcyclotetrasiloxane and 4-vinyl epoxy cyclohexane into a reaction vessel in a nitrogen atmosphere, adding a solvent, a catalyst and a polymerization inhibitor, heating to react, and distilling under reduced pressure to obtain epoxy-cyclohexane-group-containing cyclotetrasiloxane; and proportionally adding the epoxy-cyclohexane-group-containing cyclotetrasiloxane, methylphenylcyclosiloxane and a blocking agent into another reaction vessel, adding a catalyst, heating to react, and distilling under reduced pressure to obtain the epoxy organic silicon resin. The preparation method is simple and flexible, has the advantage of mild reaction conditions, and is convenient to operate and suitable for industrial production.

The invention discloses an FDSOI-process-based 3D nonvolatile memory, and a manufacturing method. The 3D nonvolatile memory comprises a silicon substrate, a buried oxide layer, a monocrystalline silicon top layer and a 3D nonvolatile memory storage array. The buried oxide layer serves as an insulation layer of the first layer and the third layer. The monocrystalline silicon top layer is used for realizing a peripheral CMOS logic circuit of the 3D nonvolatile memory. According to the invention, the two parts, being the 3D nonvolatile memory storage array and the peripheral CMOS logic circuit of the D nonvolatile memory, of the FDSOI-process-based 3D nonvolatile memory can be produced by different manufacturing works. The performances and power consumption of the 3D nonvolatile memory can be optimized by adjusting back gate voltages of different functional modules. The break-over voltage of the transistor can be reduced by adjusting the back gate voltages, so that the transistor can work normally under a lower voltage and even can work normally under a voltage close to a threshold voltage and thus the chip power consumption can be substantially reduced.