39results about How to "Solve Application Bottlenecks" patented technology

The invention provides a preparation method of a nano-composite fiber material. The preparation method includes the steps of (1), dispersing multiple functional nanoparticles into an organic solvent so as to form functional nanoparticle suspension; (2), providing a fusion-state organic polymer carrier material; (3), spraying the functional nanoparticle suspension on the fusion-state organic polymer carrier material so as to enable the functional nanoparticles to be attached to the surface of the fusion-state organic polymer carrier material; (4), curing a fusion-state organic polymer carrier material obtained from the step (3) so as to obtain the nano-composite fiber material. The invention further provides the nano-composite fiber material prepared by the preparation method. The nano-composite fiber material has the advantages that the functional nanoparticles can be effectively loaded on the organic polymer carrier material, so that high-capacity functional nanoparticle load can be achieved; the nano-composite fiber material can be applied to the environment-friendly fields of wastewater purification, air purification, bacterium resistance, disinfection and the like.

The invention belongs to the technical field of environmental science and engineering, and discloses a metal-organic framework material and a molding method thereof, and an application in the field ofwastewater treatment and organic matter adsorption. The molding method includes the following steps: (1) adding a metal-organic framework material into water to prepare into a matrix solution, and adding sodium alginate to perform heating and uniform mixing so that a colloidal liquid can be obtained; and (2) adding the colloidal liquid into a calcium chloride solution, and performing standing, filtering, washing and drying so that metal-organic framework material particles can be obtained. The metal-organic framework material obtained by the method is also provided. The method can effectivelyshape the powdery metal-organic framework material, and the obtained particle materials can keep the crystalline structure of an original metal-organic framework; and the molded material particles effectively overcomes the technical problems of easy loss and hard recycle of powder materials, technical effects of efficiently removing tetracycline antibiotics in water can be realized, and the metal-organic framework material can be applied to the field of treating wastewater and removing organic matters.

The invention discloses upconversion resin with polydimethylsiloxane as a matrix and a preparation method and application thereof. In a nitrogen atmosphere, a silane crosslinking agent and dimethyl siloxane monomers are mixed according to the mass ratio of 1:(10-30); then heat preservation is conducted for 2 h at the temperature of 100 DEG C after vacuum treatment; then natural cooling is conducted, and polysiloxane is formed; then in the nitrogen atmosphere, polysiloxane is placed in an organic solvent containing a photosensitizer and an illuminating agent to be soaked for 18-30 h, polysiloxane is taken out and dried, and then a solid upconversion double-component system based on polysiloxane is obtained. The invention discloses the preparation method of the solid upconversion resin with PDMS as the matrix and green-to-blue light generated by the solid upconversion resin for the first time, the solution-state upconversion system is converted into a solid material, high upconversion efficiency is achieved, and potential application value is achieved on the aspects of hydrogen production through water photolysis and photosynthesis.

The invention discloses a novel efficient and low-resistance compound antibacterial air filtering material. The novel efficient and low-resistance compound antibacterial air filtering material comprises a PET/PA (Polyethylene Terephthalate/Polyamide) double-component filament fiber bottom layer and an antibacterial master batch/PP (Polypropylene) fiber surface layer, wherein the two layers are melt-blown and self-adhered by double nozzles; the tensile strength of fibers of the bottom layer is high and components of antibacterial master batches of the surface layer are special; the filtering material can be used for firmly adsorbing micro-particles, bacteria and viruses, which have negative charges, in a filtering material so that the bacteria and the viruses lose the activity and the sterilization effect is realized; and the 8-hour inhibition rate on colon bacillus and staphylococcus aureus is more than 99.5%.

The invention discloses a preparation method of a high molecular weight poly-morpholine-2,5-dione derivative and a preparation method of the copolymer thereof. The preparation method of the high molecular weight poly-morpholine-2,5-dione derivative comprises the following steps: (1) morpholine-2,5-dione derivative, organic tin catalyst and dihydric alcohol are weighted and mixed to react to obtain the dihydroxy-terminal poly-morpholine-2,5-dione derivative after separation and purification; and (2) the dihydroxy-terminal poly-morpholine-2,5-dione derivative is mixed with a chain extender in proportion to react under air-isolated conditions to obtain the high molecular weight poly-morpholine-2,5-dione derivative. The high molecular weight poly-morpholine-2,5-dione derivative and the copolymer thereof prepared by the preparation methods have high molecular weight, biodegradability and good mechanical properties owning to high molecular weight, thereby meeting the requirement of the application of high molecular materials for medical use.

The invention discloses welding materials for butt welding of transition layers of a titanium clad steel plate and a welding method of the welding materials, and belongs to the technical field of metal material welding. The welding materials comprise a welding material for a surfacing layer and a near-titanium layer, a welding material for a bottoming layer, a welding material for a steel layer and a welding material for a titanium layer, wherein the welding material for the surfacing layer and the near-titanium layer comprises, by weight percentage, less than or equal to 0. 011% of carbon, less than or equal to 0.32% of silicon, 2.0-4.0% of manganese, less than or equal to 0.01% of phosphorus, less than or equal to 0.01% of sulfur, 10-17% of chromium, 2-16% of molybdenum, less than or equal to 2.0% of copper, less than or equal to 5.0% of ferrum and the balance nickel; and the welding material for the bottoming layer comprises more than or equal to 99.9% of nickel. The welding methodcomprises the following step that a groove form of a welding joint is designed to be an X-shaped groove, surfacing is carried out on the groove of the surfacing layer, then the near-titanium layer isfilled and welded with the near-welding material for the near-titanium layer, welding is carried out on the steel layer by using the welding material of ordinary carbon steel, and finally welding is carried out on the titanium layer by using an industrial TA2 welding wire. The welding materials and the welding method have the advantage that the fusion welding butt joint of the titanium clad steelplate has relatively high strength and toughness; and the problem of application bottleneck of welding of the titanium clad steel plate can be solved.

The invention relates to a preparation method for modified fused zirconia and praseodymium yellow pigment. The method includes: firstly conducting grinding and homogenization treatment to control the grain composition of fused zirconia in a reasonable scope, improving the specific surface area of fused zirconia, and then adding an appropriate active adhesive to conduct mixing so as to improve the reaction activity of fused zirconia, thus obtaining modified fused zirconia with specific surface area and reaction activity both close to chemical zirconium. The ceramic pigment produced from the modified fused zirconia has temperature resistance close to that of high temperature resistant ceramic pigment prepared from chemical zirconium. The modified fused zirconia can completely replace chemical zirconium to produce high temperature resistant ceramic pigment, the application bottleneck of fused zirconia in the high-end ceramic pigment field can be overcome, and the production cost of high temperature resistant ceramic pigments is reduced.

The invention belongs to the technical field of semiconductor memories, and particularly relates to a method for preparing a gate stack of a metallic nano crystal memory. The method comprises the following steps of: depositing a tunneling layer on a single crystal silicon substrate; spinning a layer of polyimide film on the tunneling layer; putting an anodic aluminum oxide template on the polyimide film serving as an etching mask; performing reactive ion etching on the polyimide film to form a polyimide mask; removing the anodic aluminum oxide template; depositing a layer of ultra-thin metal in the polyimide mask; removing the polyimide mask by adopting lift-off technology; depositing a barrier layer; and depositing a gate electrode. Because anodic aluminum oxide is used as a non-photolithographic mask plate, the formed nano crystal array has high density and uniform size distribution.

The invention discloses a miniature narrow-band filter for multistage filtering, comprising an input collimator, a first-stage filter, an FP (Fabry-Perot) cavity and an output collimator, wherein theinput collimator is used for performing beam expansion on an input optical signal and then transmitting the optical signal into the first-stage filter through a free space; the first-stage filter is used for performing first-stage filtering on the optical signal transmitted by the input collimator and then transmitting the optical signal into the FP cavity through the free space; the FP cavity isused for performing narrow-band filtering on the optical signal filtered by the first-stage filter and then transmitting the optical signal to the output collimator through the free space; and the output collimator is used for receiving the optical signal which is transmitted by the FP cavity after being subjected to narrow-band filtering, and performing coupling and output on the optical signal.According to the miniature narrow-band filter of the invention, the first-stage filter is combined with the FP cavity, so that an application bottleneck of evenly spaced comb-shaped waveforms of an FPcavity filter can be solved, and narrow-band filtering in a large spectral range can be achieved; at the same time, control on a working temperature is achieved based on a thermistor and a semiconductor cooler TEC, thereby improving reliability of the filter.

The embodiment of the invention provides an RDMA event management method and device, computer equipment and a storage medium. In the embodiment of the invention, a new user state event management mechanism is additionally arranged between an upper-layer application program and an operating system kernel, and the user state event management mechanism is used for packaging a plurality of kernel state event management instances to obtain a user state event management instance facing the upper-layer application program; the user state event management instance controls different kernel state event management instances contained in the user state event management instance to at least simultaneously perform notification management on the RDMA event and the kernel event, so that the problem of event notification compatibility in a mixed running scene of two protocols is solved, the application scene of the RDMA technology can be further expanded, and the application bottleneck problem faced by the RDMA technology is solved.

The invention provides a method for functional modification of CNTs applicable to a composite rubber system. The method comprises the following steps: treating CNTs by using a covalent bond modification method, i.e., a hydrogen peroxide (H2O2) oxidation method so as to form hydroxyl functional groups on the surfaces of CNTs through oxidation; and then subjecting a silane coupling agent, i.e., (heptadecafluoro-1,1,2,2-tetradecyl)trimethoxysilane (CF3(CF2)7CH2CH2Si(OC2H5)3) (AC-FAS) and the hydroxyl groups on the surface of the CNTs to a dehydration condensation reaction so as to successfully introduce the silane coupling agent to the surfaces of the CNTs. A contact angle test result shows that the surfaces of the CNTs functionalized by the method are changed from hydrophilicity to hydrophobicity, so the compatibility of the CNTs with a rubber matrix is effectively improved. A carbon black/carbon nanotube composite rubber material prepared from 5 phr of the functionalized carbon nanotubes has excellent mechanical properties, and the heat-conducting property of the carbon black/carbon nanotube composite rubber material can be improved by 11.9%. The dispersibility of the CNTs and the compatibility between the CNTs and the matrix are well improved; the dispersion of the CNTs effectively promotes the dispersion of the carbon black; and the two fillers, namely the CNTs and the carbonblack, construct a good filler network in the rubber matrix. The functional modification method provided by the invention effectively solves problems in application of the carbon nanotubes to rubber.