23results about How to "Fast preparation method" patented technology

The invention discloses a high-biocompatibility pH response type Pickering emulsion and a preparation method thereof, and relates to the technical field of food and materials. An interfacial film with high mechanical strength is constructed by adopting electrostatic interaction and hydrophilic-hydrophobic complementary characteristics between the hydrophobic shellac nanoparticles carrying negative charges and the hydrophilic cationic colloidal particles carrying positive charges, and the prepared emulsion has good viscoelasticity and stability. In addition, due to the unique solubility of the shellac nanoparticles, the Pickering emulsion prepared by the preparation method disclosed by the invention has excellent pH responsiveness. The preparation method of the Pickering emulsion is convenient and simple, the stabilizer is wide in source and low in price, the biocompatibility of the emulsion is high, and the Pickering emulsion has wide application prospects in the aspects of food, medicine, materials and the like.

The invention discloses high-entropy rare earth ceramic powder as well as a rapid preparation method and application thereof. The rapid preparation method of the high-entropy rare earth ceramic powder comprises the following steps: 1) uniformly mixing rare earth oxide powder with one of HfO2 powder, ZrO2 powder, Ta2O5 powder and SiO2 powder to obtain mixed powder; and 2) carrying out laser radiation heating on the mixed powder to obtain the high-entropy rare earth ceramic powder. The high-entropy rare earth ceramic powder has the excellent characteristics of uniform element distribution, no impurity phase, large synthetic component space and the like, and the preparation method has the advantages of universality, simplicity, rapidness, high efficiency and the like, can realize the purpose of high-throughput material screening, is suitable for being used on hot end parts of aerospace engines, and has a very wide application prospect.

The invention discloses a preparation method of (R)-2-(4-chloro-2-methylphenoxy) propionate compounds, which comprises the following steps: providing compounds with structures shown in formulas I and II: R-OH formula I, in the formula I, R is selected from C1-C18 alkyl substituted or unsubstituted by hydroxyl,-(R1-O) m-R1-OH,-(R4-O-CO-O) n-R4-OH,-(R4-O-CO-R10) w-OH,-R7-O (-CO-O-(R6-O-) p) q-R7-OH, R1 is alkylene of C2-C4, m is an integer of 4-28, and R2 is an integer of 4-28; r4 is a C3-C15 alkylene group or # imgabs0 # n is an integer from 1 to 20; r10 is # imgabs1 # w which is an integer from 1 to 15; r < 6 > is isopropylidene, R < 7 > is C2-C5 alkylene, p is an integer of 1-5, and q is an integer of 5-30; in the formula II, R2 and R3 are independently selected from H, C1, Br and I, and at least one of R2 and R3 is C1 or Br or I; compounds shown in the formula I and the formula II react under the catalytic condition to generate a compound shown in the formula III, wherein R, R2 and R3 are defined as above; the compound shown in the formula III and 4-chloro-o-cresol are catalyzed by an etherification catalyst to generate a compound shown in a formula IV, and in the formula IV, R is defined as above; # imgabs2 #

The invention discloses a self-lubricating high-corrosion-resistance composite coating as well as a preparation method and application thereof, and belongs to the technical field of composite coating materials. The preparation method of the self-lubricating high-corrosion-resistance composite coating comprises the following steps: preparing a ceramic-fluoride-based composite coating on the surface of a metal substrate to obtain an intermediate material; the intermediate material is placed in liquid formed by heating and melting the solid-liquid reversible lubricating phase to be subjected to vacuum impregnation, so that the solid-liquid reversible lubricating phase permeates into the structural defects of the ceramic-fluoride-based composite coating; and then cooling and solidifying to solidify the solid-liquid reversible lubricating phase and remain in the structural defect. The preparation method is simple, rapid and efficient, the composite coating which is suitable for seawater or seawater-atmosphere alternating environment and integrates the self-lubricating function and the strong anti-corrosion function can be obtained, and the composite coating has the low friction coefficient and the excellent anti-corrosion performance and can be used for preparing ocean engineering equipment.

This invention discloses a method for preparing and applying a sodium borohydride-modified self-supporting anode for AEM water electrolyzers. Firstly, an amorphous ternary metal hydroxyl oxide precursor is grown in situ on a nickel substrate via room temperature liquid phase deposition. The process involves the presence of Co in solution. 2+ Fe 3+ Ni ions are introduced through slight corrosion of the nickel foam matrix. 2+ The ions, the three, and the OH- produced by hydrolysis ⁻ Co-deposition occurs under the influence of dissolved oxygen, leading to the self-assembly of amorphous nanosheet structures on the substrate surface. Subsequently, a mild chemical reduction treatment with sodium borohydride solution is used to obtain a structurally stable and high-performance self-supporting electrode. The method described in this embodiment is mild, simple, low-cost, and has good versatility.

The invention discloses a high-water-solubility paclitaxel compound chemically modified by diaconitic acid molecules as well as a synthesis method and application of the paclitaxel compound chemically modified by the diaconitic acid molecules. The paclitaxel compound comprises paclitaxel and two aconitic acid molecules which are covalently bonded through ester bonds; the water-soluble paclitaxel compound is simple and convenient in preparation method and suitable for industrial production, paclitaxel drug molecules have amphiphilic properties, namely hydrophilicity and lipophilicity after being structurally modified by the method, the water solubility and the permeability are improved, the possibility of developing various oral and aerosol inhalation drug preparations is provided, and the compound is high in water solubility at normal temperature, low in cost and suitable for industrial production. According to the present invention, the prepared paclitaxel compound has characteristics of no foam generation during dissolution, more than 8 mg / ml, no need of any co-solvent, compound toxicity lower than the original drug paclitaxel, and ester bond accelerated hydrolysis fracture under the weak acid condition of the in vivo tumor tissue, such that the compound has advantages of certain tumor tissue targeting, good bioavailability and good anti-tumor effect.

The invention discloses a metal selenide (at) MXene composite material and a preparation method and application thereof. The method comprises the following steps that 1, selenium powder and MAX are mixed, ground and mixed uniformly; and 2, calcining the product obtained in the step 1 in a protective atmosphere, and taking out the product after heat preservation to obtain the metal selenide and MXene composite material. The weight ratio of the selenium powder to the MAX phase is 10-1. And the MAX phase is any one of Ti2SnC, Ti2AlC, V2AlC, Cr2AlC, Ti2ZnC, Ti3AlC2, Mo2Ga2C, Ti3SiC2, V4AlC3 and (Ti < 0.5 > Nb < 0.5 >) < 5 > AlC4. The grinding time is 10-30 minutes. The preparation method disclosed by the invention is convenient, rapid and low in cost, can effectively utilize each component element in the MAX phase, does not generate pollution, and can realize large-scale industrial application; the prepared metal selenide (at) MXene composite electrode material has excellent interface bonding and can be applied to a secondary battery electrode material.

The utility model relates to a thin-plate cage hub woven three-dimensional process component, which belongs to a process device made of plates and is formed by a plurality of cage hub sheets which are crisscross and mutually clamped, and the cage hub sheets are divided into a longitudinal circular sheet, a transverse circular sheet, a longitudinal C-shaped sheet and a transverse C-shaped sheet; the edge of each sheet is provided with an inner bayonet and an outer bayonet which correspond to each other, and each longitudinal circular sheet and the corresponding transverse circular sheet are sequentially clamped with each other; the tail sections of the longitudinal C-shaped sheets and the transverse C-shaped sheets are mutually clamped, and the middle sections of the longitudinal C-shaped sheets and the transverse C-shaped sheets are respectively clamped with the middle sections of the longitudinal circular sheets and the transverse circular sheets to form a three-dimensional process component. The thin-plate cage hub woven three-dimensional technological component is reasonable in structural design, the plates are regularly cut and manufactured into technological structures which are provided with bayonets and suitable for splicing, additional manufacturing such as bonding and welding is not needed, the assembled thin-plate cage hub woven three-dimensional technological component can be folded into a thin sheet, and the thin sheet cage hub woven three-dimensional technological component is convenient to use. The manufacturing method is simple and rapid, the structure is stable, carrying is convenient, and the product appearance is more attractive and diversified.

The invention provides an alkaline dietary beverage as well as a preparation method and application thereof, and relates to the technical field of dietary beverage preparation, the alkaline dietary beverage is prepared from sodium alginate, xanthan gum, pectin, konjac powder, sodium bicarbonate and sodium carbonate, polysaccharides with different carboxyl proportions are utilized, and natural products such as macromolecular neutral polysaccharides and plant extracts are supplemented, so that the alkaline dietary beverage is prepared. The alkaline dietary beverage obtained by combining the alkaline dietary beverage with food-grade carbonate not only is beneficial for controlling gastric juice reflux, but also has the functions of satiety, improving intestinal tracts and the like; and the preparation method is simple and rapid.

The invention belongs to the technical field of coated paper cups, and relates to a preparation method of a heat-insulating PLA (polylactic acid) foamed coated paper cup, which comprises the following steps: (1) preparing PLA coated paper from coated base paper and a coated raw material PLA through a coating process of a coating machine; (2) after the PLA coated paper is cut into paper samples, the PLA coated paper cup is prepared through a paper cup forming machine; (3) performing carbon dioxide soaking treatment on the PLA coated paper cup to prepare a PLA foamed coated paper cup; in the step (3), the mode of carbon dioxide soaking is that the PLA coated paper cup is placed in a high-temperature-resistant and high-pressure-resistant closed container, carbon dioxide is injected, constant-temperature and pressure-maintaining soaking is carried out, and pressure is rapidly relieved after soaking is completed. The carbon dioxide is subcritical or supercritical carbon dioxide fluid. According to the preparation method of the foaming coated paper cup, the prepared foaming coated paper cup has a heat insulation function, the method has the advantages of being simple and rapid, and a large number of raw materials and corresponding processing and manufacturing cost can be saved.

The application discloses a vanadium pentoxide-based magnesium battery positive electrode material and a preparation method thereof. The application obtains flower-spherical vanadium pentoxide through a hydrothermal reaction of an ammonium metavanadate and a mixed solution of reactants and subsequent calcination; the method has high production efficiency, is convenient to produce, has short preparation time, is low in cost and has good repeatability. The flower-spherical vanadium pentoxide nanomaterial is used as a magnesium battery positive electrode material, more surface active sites can be exposed, ion transmission channels are increased, the problem of stacking and agglomeration of vanadium pentoxide nanosheets in a cycle process is solved, the exposed (001) crystal face reduces the interface side reaction of an electrode and an electrolyte surface, the storage capacity of vanadium pentoxide is greatly improved, the vanadium pentoxide has good cycle stability and is an excellent magnesium battery positive electrode material.

The invention belongs to the technical field of sodium ion batteries, and relates to an inorganic nickel compound plasma synthesized hard carbon / nickel composite negative electrode material and a preparation method and application thereof. According to the material, biomass carbon is used as a matrix, an inorganic nickel compound is used as a plasma source, and a carbonized precursor is subjected to plasma sintering to prepare the hard carbon / nickel composite negative electrode material. The hard carbon / nickel composite negative electrode material prepared by the invention shows high specific capacity, good cycling stability and excellent rate capability and coulombic efficiency. Meanwhile, the preparation method provided by the invention is simple, rapid, efficient and convenient, mild in condition and easy to control, can effectively introduce sodium storage gain impurity elements into the hard carbon material, and is helpful for promoting the development of the hard carbon negative electrode material of the sodium-ion battery.

The application relates to the field of biotechnology, in particular to a nanobody targeting annexin A1 and a preparation method and application thereof, discloses a nanobody targeting annexin A1, the nanobody comprises a nanobody Nb6, wherein the amino acid sequence of the nanobody Nb6 is shown in Seq.ID NO.1, the nanobody Nb4 provided has higher affinity with annexin A1, the nanobody can be used for targeted action on annexin A1, has high-strength combination capacity with annexin A1, is favorable for development of a nanobody related medicine of annexin A1, realizes targeted treatment and imaging of tumors, and has very great clinical application value. Meanwhile, a molecular probe can be prepared based on the nanobody, the molecular probe is specifically combined with a tumor blood vessel surface annexin antigen, is applied to specific imaging and diagnosis of tumors, and is used for delivery of related medicines, and is widely applied.

The invention provides a laser-induced graphene / MoS2 / Au composite material and a preparation method and application thereof.The preparation method comprises two times of laser engraving, so that MoS2 and Au modified laser-induced graphene is formed on a polyimide film, the material preparation method is rapid, economical and efficient, and synchronous in-situ modification of Au and MoS2 in a laser-induced graphene sensing area can be achieved. According to the invention, severe conditions of high temperature and high pressure and toxic chemicals involved in a traditional preparation mode are avoided, and the laser-induced graphene / MoS2 / Au can be used as a gas sensor to efficiently and sensitively detect toxic gases, and has potential application in the fields of environmental monitoring and biomedicine.

The hollow tubular ZnCo-X composite oxide catalytic material is prepared by grinding oxalic acid, Co (NO3) 2.6 H2O and Zn (NO3). 6H2O as raw materials, and the preparation process is simple, rapid, low in energy consumption and less in environmental pollution. The hollow tubular structure of ZnCo-X can expose more active sites, and the mass transfer process of reactants on the surface is accelerated. The ZnCo-X spinel composite component can activate peroxymonosulfate (PMS) to generate a large amount of non-free radicals (1O2) and free radicals (. OH, SO4.-,. O2-) so as to remove antibiotics in the water body. The ZnCo-1 catalytic material shows excellent catalytic performance in a reaction of activating peroxymonosulfate (PMS) to degrade tetracycline, and tetracycline in a water body can be completely degraded after the reaction is carried out for 5 minutes. In addition, the ZnCo-1 catalyst also shows wide applicability in the degradation of other anti-biological pollutants in the water body.

The application discloses an eudesmane type sesquiterpenoid compound and a preparation and application thereof, and obtains a novel eudesmane type sesquiterpenoid compound linderasin J from the rhizome of Lindera aggregata by simple processes such as organic solvent extraction and column chromatography separation, and the preparation method is simple and rapid, and the obtained compound has high purity. The eudesmane type sesquiterpenoid compound has good in-vitro anti-inflammatory activity, can effectively inhibit the expression of inflammatory factors IL-1 β , IL-6, iNOS and COX-2, and can be applied in the research and development of anti-inflammatory drugs. The structure optimization of the compound as a lead has important significance for the research and development of new anti-inflammatory drugs.

This invention discloses a method for rapidly preparing high-performance GeTe thermoelectric materials, wherein the thermoelectric material has the general chemical formula Ge. x M 1‑ x Te y N 1‑y Where M is one or more of the elements Cd, Mn, Cr, Fe, Cu, Sb, Ag, In, Pb, and Zn, and N is one or more of the elements Se, I, S, Si, Br, and C, where x and y are the molar numbers, 0.6 <x≤1,0.5<y≤1。Ge x M 1‑x Te y N 1‑y The preparation methods mainly include low-energy ball milling mixing, cold pressing, high-energy ball milling, and spark plasma sintering. The Ge described in this invention... x M 1‑x Te y N 1‑y Thermoelectric materials have the advantages of simple, rapid, and safe preparation methods, and can effectively reduce thermal conductivity, improve power factor, and enhance compressive strength, thus expanding the application fields of thermoelectric materials.

The invention discloses a sea red bacteria strain, a biocontrol agent and a fermentation liquid, as well as a preparation method and application thereof. The sea red bacteria strain is sea red bacteria RH-AZ ( Rhodobium marinum RH‑AZ), with a deposit number of CCTCC NO: M 20221252 and a deposit date of August 8, 2022. The biocontrol agent is obtained by seed culture and production culture of the sea red bacteria RH‑AZ. The fermentation broth is obtained by fermenting and culturing the biocontrol agent and centrifuging the supernatant. The sea red bacteria strain, the biocontrol agent and the fermentation broth of the present invention have the advantages of low production cost, good effect, high efficiency, non-toxicity and environmental protection, can significantly improve the salt tolerance of rice and promote its growth, and can be used to improve the growth and development of rice seedlings under salt stress.

The invention relates to the technical field of traditional Chinese medicines, in particular to application of a traditional Chinese medicine composition in preparation of a medicine for preventing and treating dysmenorrhea. The invention provides application of a traditional Chinese medicine composition in preparation of a medicine for preventing and treating dysmenorrhea. The traditional Chinese medicine composition comprises pseudo-ginseng, ligusticum wallichii, corydalis tuber, radix paeoniae alba, radix achyranthis bidentatae, rhizoma cibotii, cooked rhubarb and radix angelicae pubescentis. The traditional Chinese medicine composition can remarkably reduce the serum E2 level of rats with primary dysmenorrhea, increase the serum PROG level and improve the plasma beta-EP level; and the contents of serum luteinizing hormone (LH) and follicle stimulating hormone (FSH) of a rat with cold coagulation and blood stasis type dysmenorrhea are remarkably reduced. And the preparation method of the compound combination medicine for treating dysmenorrhea is simple, rapid, efficient and easy to operate. The prepared capsules, tablets, granules, pills, injections and the like are convenient to carry and take.

The invention discloses an aurone-lignan glycoside compound separated from Tibetan monascus and application of the aurone-lignan glycoside compound in resisting non-alcoholic fatty liver. The structure of the aurone-lignan glycoside compound is shown as a formula I or pharmaceutically acceptable salt of the aurone-lignan glycoside compound. The compound can significantly reduce the levels of ALP, AST, ALT, TG, TC and LDL-C in serum of a non-alcoholic fatty liver model golden hamster, can significantly increase the levels of APN and HDL-C, and has significant anti-non-alcoholic fatty liver activity. The invention discloses an application of the neoaurone and lignan glycoside compound in preparation of a medicine for reducing blood fat. The invention discloses an application of the neoaurone-lignan glycoside compound in preparation of a medicine for resisting the non-alcoholic fatty liver disease, and further discloses an application of the neoaurone-lignan glycoside compound in preparation of a medicine for resisting the non-alcoholic fatty liver disease.

The invention discloses a method for preparing a polymeric membrane through a liquid level spreading method, and belongs to the technical field of separation membrane materials, according to the liquid level spreading method, a non-polar solvent of a polymer is dropwise added to the surface of a polar solvent, phase inversion is carried out, a polymeric porous membrane of an asymmetric structure with uniform pore diameter is obtained, and the method has a good application prospect in the field of membrane distillation. The preparation method is simple and rapid, and the membrane aperture is uniform.

The present invention discloses a self-lubricating strong anti-corrosion composite coating and its preparation method and application, belonging to the technical field of composite coating materials. The preparation of the self-lubricating strong anti-corrosion composite coating comprises the following steps: preparing a ceramic-fluoride-based composite coating on the surface of a metal substrate to obtain an intermediate material; placing the intermediate material in a liquid formed by heating and melting a solid-liquid reversible lubricating phase for vacuum impregnation, so that the solid-liquid reversible lubricating phase penetrates into the structural defects of the ceramic-fluoride-based composite coating; then cooling and solidifying, so that the solid-liquid reversible lubricating phase solidifies and remains in the structural defects. The preparation method is simple, fast and efficient, and can obtain a composite coating that integrates self-lubrication and strong anti-corrosion functions and is suitable for seawater or seawater-atmosphere alternating environments. The composite coating has a low friction coefficient and excellent anti-corrosion performance, and can be used to prepare marine engineering equipment.

This invention relates to the field of polymer materials technology, specifically to photocurable organosilicon ionomers based on rigid-flexible networks, their preparation methods, and applications. The invention is prepared by UV curing of raw materials comprising the following components: acrylated polysiloxane; a multifunctional organosilicon crosslinking agent containing a rigid aromatic ring; an ionic liquid; and a photoinitiator. Through a synergistic crosslinking strategy combining rigidity and flexibility, this invention enables the ionomer to possess high tensile strength, high elongation at break, high transparency, and excellent UV shielding properties. The preparation process of this invention is simple and the curing is rapid. The resulting material has broad application prospects in flexible electronic devices, sun-protective and heat-insulating coatings, and other fields.