83results about How to "With structural stability" patented technology

The invention discloses a polyurethane modified calcium alginate gel microballoon and a preparation method thereof. The preparation method comprises steps of synthesis of double bond-terminated polyurethane prepolymer and graft modification of calcium alginate. By utilizing a polyurethanes prepolymer side chain, a crystallization area is formed in the interior of natural polysaccharides material calcium alginate gel so as to affect the arrangement of adsorption sites, so that the target molecules can be combined in order in a base material. A single combination form is provided for the target molecule, and the identification selectivity and combined quantity of an imprinted material is improved; the formation of the crystallization area is used as a physical cross linking point, so that the gel material is stable in structure and is improved in resistance to swelling; and the preparation method diversifies the modification methods for natural polysaccharides and provides a new thought for the development, modification and application of marine plants and animals.

A three-dimensional semiconductor device includes: a substrate having a cell array region and a contact region; a stacked structure including a plurality of electrodes and a plurality of electrode isolation insulating layers, which are alternately stacked on the substrate in a vertical direction, and having a stepwise structure on the contact region; vertical structures penetrating the stacked structure in the cell array region, each of the vertical structures constituting a cell string; and word line contact plugs, each penetrating an uppermost electrode among the plurality of electrodes in aregion of each of tread portions of the stacked structure having the stepwise structure, being connected to another electrode under the penetrated uppermost electrode, and being electrically insulated from the penetrated uppermost electrode.

A nanometer gas-sensing material from ternary composite metal oxide and its production are disclosed. The procedure is carried out by preparing Zno-SnO2 presoma by co-precipitation, adding the third component metal oxide to obtain ternary metal composite oxide material with chemical formula MO-ZnO-SnO2 by secondary precipitation, and regulating compound composition, concentration of metal salt solution, Zn/Sn mol ratio, precipitation value and aging time. The ternary metal composite oxide consists of Mo 2-3mol% which is transient metal oxide and basic metal oxide, its grain size distribution is 30-90nm and specific surface is 20-100m2/g. It has good sensitivity and selectivity.

The invention relates to preparation of a modified lignin-based hard carbon microsphere material, and belongs to the technical field of alkali metal ion battery negative electrode materials. The problems that in the prior art, the preparation cost of biomass hard carbon is high, and the performance of the biomass hard carbon serving as an alkali metal ion battery negative electrode material needs to be continuously improved are solved. The method comprises the following steps: carrying out hydrothermal reaction on a mixed solution of lignin and an organic matter monomer to obtain a hydrothermal carbon microsphere precursor, and carrying out high-temperature carbonization to obtain the modified lignin-based hard carbon microsphere. The modified lignin-based hard carbon microspheres are spherical, the particle size is 1-20 microns, the graphite interlayer spacing is 0.37-0.40nm, and the specific surface area is 1-300m<2>/g. The modified lignin-based hard carbon microspheres have large interlayer spacing, rich microporous structures and good conductivity, so that the alkali metal ion battery has high specific capacity and stable cycle performance. According to the method, the structure of the modified lignin-based hard carbon microspheres can be regulated and controlled by changing the amount and variety of the organic matter monomer.

The invention discloses a core-shell graphene-silicon composite material, a preparation method thereof, a battery material and a battery and relates to the technical field of batteries, and the problem of the degradation of the cycle performance of an electrode of a material containing a silicon substrate due to volume expansion is solved. The preparation method of the core-shell graphene-siliconcomposite material comprises a step of uniformly mixing a graphene-silicon composite material and a carbon source to obtain a premix, and a step of calcining the premix in an inert environment such that the carbon source contained in the premix is carbonized to obtain the core-shell graphene-silicon composite material. The core-shell graphene-silicon composite material is prepared by the above preparation method. The core-shell graphene-silicon composite material and the preparation method provided by the invention are used in the battery.

The invention relates to a foundation treatment method, in particular to a foundation construction method capable of achieving surface soil on-site solidification and pile combined bearing. The foundation construction method comprises the following steps that 1, a solidification material and in-situ soil are subjected to on-site stirring solidification in an in-situ soil layer to form a solidification layer; 2, three or more than three pile bodies are sequentially driven into the in-situ soil layer to enable the three or more than three pile bodies to be distributed in a polygonal shape; 3, astand column used for fixing the pile body is installed on each pile body; 4, each stand column is sleeved with a fixing ring, and the multiple fixing rings are connected together through a support; 5, a clamping mechanism used for clamping the stand column is installed at the top end of each stand column; and 6, the pile bodies and the stand columns are connected together through the clamping mechanisms. By means of the foundation treatment method, the pile bodies can be prevented from inclining under the pressure effect of a foundation.

The invention relates to fluorinated polyester polyester pre-oriented yarn (POY) fibers and a preparation method thereof. The preparation method comprises fluorinated polyester melt preparation and fluorinated polyester POY fiber preparation, and concretely comprises the following steps of 1, adding an inhibitor into fluorine-containing terephthalic acid and glycol as raw materials, and preparing the mixture into fluorinated polyester melt, and 2, carrying out direct extrusion on the fluorinated polyester melt or carrying out slicing and screw melt extrusion on the slices, and carrying cooling, oil coating and winding to obtain the fluorinated polyester POY fibers. The novel fluorinated polyester POY fibers have monofilament fineness of 0.5-3.0dtex, fiber breaking strength of 1.6-2.5cN/dtex and breaking elongation of 110-150%. Through use of fluorine atoms, super-hydrophobic, hydrophobic, oleophobic and antifouling performances of the polyester POY fibers are improved. The fluorinated polyester POY fibers have a wide application prospect in manufacture of waterproof and antifouling working clothes and special industry working clothes.

The invention provides a phospholipid punicic acid grease compound, a preparation method and an application thereof. The phospholipid punicic acid grease compound is prepared from the following components by mass percent: 55-85% of diglyceride, 10-45% of triglyceride, 0.2-8% of monoglyceride and 0.03-9% of residue; the mass ratio of punicic acid to fatty acid in the whole glyceride composed of monoglyceride, diglyceride and triglyceride is (0.3-0.7):1; the residue contains free fatty acid and glycerinum. The invention relates to the preparation method for the compound and the application of the compound in functional food and drugs. The phospholipid punicic acid grease compound prepared according to the invention has a weight-losing effect of diglyceride and also has the anti-inflammatory and weight-losing effects of punicic acid, so that the compound can be used in the functional food and drugs for controlling weight, improving blood fat and enhancing immunity. In a word, the compound has the advantages of simple preparation process, low cost and wide application prospect.

The invention relates to a structural color film with structural stability and high saturation. The composite film is obtained by combining different types of film materials. Specifically, the film is formed by compounding a colloidal crystal film and a polymer film material. The colloidal photonic crystal is assembled on a polymer film material, and the composite structural color film with high structural stability and high saturation structural color can be obtained through a proper heat treatment or light treatment process. The structural colors generated by the obtained composite structural color film have high structural stability and high saturation. The method has the advantages of being easy to operate, low in cost, environmentally friendly, good in universality and the like, and has potential application value in the fields of anti-counterfeiting, displaying, coating and the like.

The invention discloses a substation optical cable and belongs to the technical field of optical cables. The substation optical cable comprises an optical cable outer sheath; the inner end of the optical cable outer sheath is connected with an elastic buffering layer; the inner end of the elastic buffering layer is connected with a first flame-retardant layer; the inner end of the first flame-retardant layer is connected with a water-resisting layer; the inner end of the water-resisting layer is connected with a second flame-retardant layer; the inner end of the second flame-retardant layer isconnected with an optical cable inner tube; a plurality of cable cores in an annular array are arranged in the optical cable inner tube; metal phosphated steel wire reinforcing cores are arranged atthe center of the optical cable inner tube; the metal phosphated steel wire reinforcing cores are arranged between the plurality of cable cores; the optical cable inner tube is filled with grease; andthe cable cores are filled with a plurality of optical fibers; the outer end of the optical cable outer sheath is fixedly connected with a plurality of uniformly-distributed fixing sleeves; and therefore, the tensile strength and waterproofness of the optical cable can be improved, a condition that the optical cable is fractured and is subject to water infiltration due to natural environment andother external force factors can be almost avoided, and therefore, the stability and safety of the work of the optic cable can be improved.

An inductor includes: a body including a coil and a magnetic material, and external electrodes disposed on an outer surface of the body. The coil is supported by a support member, and the support member may also support an insulating wall including an open-hole pattern having a shape corresponding to a pattern of the coil. An insulating ribbon formed so that a length thereof is greater than a width thereof may be additionally disposed on at least a portion of an upper surface of the insulating wall.

The invention discloses a detection probe, a kit and a direct detection method of telomerase activity. The detection probe comprises gold nanoparticles, and double-block DNA1 and DNA2 coating the surfaces of the gold nanoparticles. The double-block DNA1 can be hybridized and complemented with a telomerase primer sequence, and meanwhile, the DNA1 and the DNA2 have complementary sequence hybridization to trigger the gold nanoparticles to be assembled to form a dimer. After telomerase is added, the primer is taken as a template, telomeres are extended, and melting displacement of a DNA2 chain is initiated, so that nano-particle dimer dissociation is carried out to form a monomer; as the volume of the nanoparticles is in direct proportion to a blocking current signal, the detection probe generates an electric signal with more obvious difference when passing through the nanopore before and after the telomerase is added, so that a higher signal-to-noise ratio is achieved, and high-sensitivity telomerase activity detection is realized.

The invention discloses a detachable pressing cutter device comprising a detachable pressing head and a fixed seat, wherein the detachable pressing head is formed by one-step formation and has a top end, a bottom surface and two oblique surfaces; the bottom surface and the two oblique surfaces form two acute angles which extend to the top end, and the fixed seat has a containing groove for containing the detachable pressing head. When the detachable pressing head device is arranged in the fixed seat, the top end protrudes out of the fixed seat. With the design of the acute angles at the bottomof the detachable pressing head, the detachable pressing cutter device is stable in structure during working.

The invention discloses a sunlight-driven water purifying material and a preparation method and application thereof. The sunlight-driven water purifying material comprises a framework structure made of a hydrophilic material, and polyN-isopropylacrylamide hydrogel is grown on the framework structure and coated with a coating film having molecular or ionic screening effect. By uniformly coating a graphene oxide nanofilm on the periphery of the polyN-isopropylacrylamide hydrogel, the material can be endowed with ability of filtering ions and molecules; a graphene oxide coating can convert incident light into heat energy when receiving sunlight irradiation to heat the hydrogel inside to extrude moisture absorbed by the hydrogel and evaporate the same at the same time, so that water treatmentefficiency of the material is improved greatly.

The invention relates to the technical field of recycled concrete, and particularly discloses high-strength recycled concrete and a preparation method of the high-strength recycled concrete. The high-strength recycled concrete comprises treated recycled coarse aggregate, recycled fine aggregate, a water reducer, cement and water. The preparation method comprises the following steps: premixing the recycled coarse aggregate, the cement and the water reducing agent, and adding water to obtain a pasty concrete mixture; and finally, adding the recycled fine aggregate, and uniformly stirring to obtain the high-strength recycled concrete. The waste concrete is used as aggregate of the concrete, resources are effectively saved, building waste is fully utilized, and the influence of the waste concrete on the environment is reduced. After bionic treatment is conducted on the waste concrete, the waste concrete has the structural stability and durability of natural gravel, and when the treated waste concrete serves as aggregate to prepare concrete, high compressive strength and breaking strength are achieved.

The invention discloses ultrathin EMI electromagnetic shielding adhesive tape. The adhesive tape includes a tape body, an optical PET layer, a buffer layer and a copper coil layer. The optical PET layer is arranged on one side of the interior of the tape body, a heat conducting layer is installed at the portion, on one side of the optical PET layer, of the interior of the tape body, and the bufferlayer is installed on the side, where the heat conducting layer is away from the optical PET layer, of the interior of the tape body; buffer strips are uniformly installed in the buffer layer, a resin thin film layer is installed on the side, where the buffer layer is away from the heat conducting layer, of the interior of the tape body, and an anti-corrosion layer is installed on the side, wherethe resin thin film layer is away from the buffer layer, of the interior of the tape body. By installing the copper coil layer at the portion, on one side of a first bonding layer, of the tape body,forming second saw teeth on both sides of the copper coil layer and installing the resin thin film layer in the tape body, the surface roughness and the contact surface can be effectively increased, the bonding force among the copper coil layer, an aluminum coil layer and a glue layer is enhanced, the structural stability of the adhesive tape is ensured, and meanwhile, the electromagnetic shielding capability of the adhesive tape is improved.

The invention relates to diacylglycerol oil composition containing rich alpha-calendic acid. The diacylglycerol oil composition is prepared from components in percentage by mass as follows: 50%-85% of diacylglycerol, 8%-35% of triacylglycerol, 0.3%-10% of monoacylglycerol and 0.05%-10% of residues, wherein the mass ratio of alpha-calendic acid to fatty acid in all the acylglycerols including monoacylglycerol, diacylglycerol and triacylglycerol is (0.3-0.9):1, and the residues comprise free fatty acid and glycerin. The invention further relates to a preparation method of the composition and an application of the composition in functional food and drugs capable of controlling weight, improving blood lipid and improving immunity. The diacylglycerol oil composition containing rich alpha-calendic acid has the weight reducing effect of diacylglycerol as well as anti-inflammation and weight reducing effects and other effects of alpha-calendic acid, so that the composition can be massively applied to the functional food and drugs capable of controlling weight, improving blood lipid and improving immunity. The preparation process of the composition is simple and low in cost and has broad application prospect.

The invention discloses a preparation method of a waterborne polyurethane (WPU)/collagen/hydroxyapatite (HAP) composite material. The composite material is prepared from the following components in parts by weight: diisocyanate, polyester polyol, a chain extender, a waterborne chain extender, a neutralizer, a hydrolyzed collagen solution, gamma-glycidoxypropyltrimethoxysilane (KH560), calcium chloride and sodium hydrogen phosphate. According to the preparation method, an emulsion polymerization reaction is performed on a polyester-type WPU prepolymer and a biochemical-level gelatin hydrolysate (GH), and external crosslink modification is further performed through KH560 to improve the hydrophobicity and adhesive film toughness of the material, thus preparing a WPU and GH graft copolymerization composite emulsion (WPU-g-GH). The invention aims to prepare the nano HAP composite material with good mechanical property, structural stability, biocompatibility and degradability, which is expected to be a potential bone scaffold repair material.

The invention discloses a fabric for weaving sports socks. The fabric comprises a skin-friendly fabric layer and a surface layer, wherein the skin-friendly fabric layer and the surface layer are integrally sewn on a fabric surface through elastic contraction threads, the skin-friendly fabric layer comprises a skin-friendly layer and a mesh-like heat dissipation fabric layer, dot-matrix heat dissipation holes are formed in the positions, corresponding to foot arches, of the skin-friendly layer, the mesh-like heat dissipation fabric layer is formed on the inner side of the skin-friendly fabric layer, and is formed by blending 65-80% by mass of high-elasticity fibers and the balance of CoolMax fibers, the mesh-like heat dissipation fabric layer is formed into a grid structure in a weaving process so as to separate a gap structure layer between the skin-friendly layer and the surface layer through the grid structure, the surface layer is a composite fabric layer, a sweat-permeable elasticfabric layer and a pure cotton fabric layer are sequentially arranged from the side of the skin-friendly fabric layer to the outside, and dot-matrix heat dissipation holes are formed in the pure cotton fabric layer and correspond to foot arches. According to the invention, the fabric characteristics of gas permeation and high elasticity, has good moisture absorption and quick-drying performance after sweating, and improves the exercise comfort and the protection effect.

The invention discloses an upwards inserted off-road motorcycle tile cover. The upwards inserted off-road motorcycle tile cover is characterized in that clamping holes are formed in the front vertical face and the rear vertical face of a lower cross beam and located on two sides of a hanging hole and are T-shaped, a front-section tile cover and a rear-section tile cover are arc-shaped pieces with rectangular cross sections, the edges of two axial sides of each of the front-section tile cover and the rear-section tile cover are connected with side edges spreading towards the arc back side, the middle portion of the rear end of the front-section tile cover and the middle portion of the front end of the rear-section tile cover are respectively connected with a hook which upwards stretches and then is downwards folded, positioning hooks extending towards the clamping holes are arranged at the rear end of the front-section tile cover and the front end of the rear-section tile cover respectively and located on two sides of the hook, and an arc-shaped spring piece is hinged to an upper cross beam and is turned to be located between the upper cross beam and the lower cross beam and clamped on the upper end face of the hook. The upwards inserted off-road motorcycle tile cover makes sludge blocks easy to fall, can be rapidly unlocked and locked and is quick and convenient to dismount and maintain.

The invention provides a nanosheets-assembled Co dendrite electrocatalyst material and a preparation method thereof. The nanosheets-assembled Co dendrite electrocatalyst material is a nanosheets-staggered dendritic micro-dendrite, the size of the micro-dendrite is about 5-30 [mu]m, the dendrite is formed by mutually stacking nanosheets, the size of every nanosheet is 100-300 nm, and the thicknessof every nanosheet is 1-3 nm. The Co dendrite provided by the invention is the nanosheets-staggered dendritic micro-dendrite, can increase the exposure ratio of active sites of the material and promote the electric hydrogen evolution and oxygen evolution process, and has excellent electric hydrogen evolution and oxygen evolution effects; and the preparation method is simple, and needs no template.