101results about How to "Help release" patented technology

The invention belongs to the technical field of electrocatalysis and particularly relates to an iron-doped bimetal phosphide electrocatalyst and a preparation method and application thereof. A hydroxide precursor synthesized by a hydrothermal reaction undergoes a phosphating reaction at a low temperature to produce a Ni1CoxFeyP nanosheet array electrocatalyst. The bimetal phosphide has low chargetransfer resistance and a reaction barrier for a hydrogen evolution reaction and has superior performances in the electrocatalytic hydrogen evolution reaction. The catalyst has a low cost. The preparation method is easy to operate and has simple processes. The electrocatalyst has excellent catalytic performances and provides the basic application research for the material in the field of electrocatalysis.

The invention discloses a preparation method and application of pH-responsive amino sodium lignosulphonate. The preparation method comprises the following steps: dissolving sodium lignosulphonate in water to prepare a sodium lignosulphonate water solution, regulating the pH of the solution to be 10-13, and activating at 50-70 DEG C for 0.5-1.0 hour; adding an amination modifier, dropwise adding an aldehyde reagent, and reacting at 70-90 DEG C for 2-4 hours after the dropwise adding, so as to obtain an amino sodium lignosulphonate water solution; extracting the obtained amino sodium lignosulphonate water solution by virtue of an alcohol reagent, washing residual solids by virtue of petroleum ether after the extraction, and carrying out freeze drying on washed remnants. The amino sodium lignosulphonate prepared by virtue of the preparation method has remarkable pH response characteristic; by regulating the pH of the water solution of the product, the molecular configuration and the aggregation extent of the product can be changed, and a regular nanoparticle structure can be spontaneously formed; the amino sodium lignosulphonate can be used as a wall material to be applied field of pesticide microcapsules and is hopefully applied to the field of lignin-based nanometer materials.

The invention belongs to the field of nanomaterials, and discloses a nickel-cobalt bimetallic phosphide electrocatalyst as well as a synthesis method and an application thereof. The Prussian blue analogue precursor synthesized through simple aging reaction is further subjected to low-temperature phosphating reaction, and a NiCoP multi-hollow porous nanocube electrocatalyst is obtained. The seriesof bimetallic phosphides have lower charge transfer resistance and reaction barrier for oxygen evolution reaction, and have superior performance in electrocatalytic oxygen evolution reaction. Besides,the catalyst is low in cost and convenient to operate, adopts a simple process and has superior catalytic performance, and basic application research is provided for the materials in the field of electrocatalysis.

The invention provides a two-component polyurethane coating, comprising an A component and a B component, wherein the A component comprises fatty acid-type alkyd resin, cellulose, zinc stearate, talcum powder, anti-settling agent, anti-foaming agent, flatting agent, drier and solvent; the B component comprises toluene diisocyanate (TDI) trimer, toluene diisocynate additive product and solvent. The invention also provides a preparation method of the two-component polyurethane coating. The two-component polyurethane coating takes saturated fatty acid-type alkyd resin as main film-forming substance, adds the cellulose and mixes with TDI trimer and TDI additive product as curing agent, so as to be helpful for accelerating the drying of the coating and ensure the mechanical properties of the film. The two-component polyurethane coating provided by the invention has short polishing time which is not more than 1.5 h, excellent film mechanical property, and achieves H-level hardness and 1-level adhesive force.

The invention relates to a method for extracting a fucoxanthine-containing concentrate from algae, the fucoxanthine-containing concentrate obtained through the method, and application of the fucoxanthine-containing concentrate. The method comprises the following steps of: pretreating raw materials; performing enzyme treatment; extracting; separating; concentrating and the like. The method overcomes technical defects of low efficiency of extracting fucoxanthine and high consumption of an organic solvent in the prior art, and a fucoxanthine product with high active ingredients is obtained, so the fucoxanthine product has a good application prospect. The raw materials are readily available, the extraction process is simple, and the obtained product has stable content and controllable comprehensive cost, and is suitable for industrial production and lengthening an industrial chain.

The invention belongs to the technical field of electrocatalysis, and discloses a cobalt zinc bimetallic sulfide based composite electrocatalyst, and a preparation method and applications thereof, andmore specifically relates to a cobalt zinc bimetallic sulfide/nickel iron layered bimetallic hydroxide/foam nickel composite electrocatalyst, and a preparation method and applications thereof. The cobalt zinc bimetallic sulfide/nickel iron layered bimetallic hydroxide/foam nickel composite electrocatalyst is prepared through three-step hydro-thermal method, is low in charge transfer resistance and hydrogen evolution reaction barrier, possesses excellent performance in electrocatalysis hydrogen evolution reaction, is low in cost, simple in operation and technology, and excellent in catalytic performance, and base application research on the material kind in electrocatalysis field is realized.

The invention discloses a method for extracting, separating and purifying flax lignans from flax cakes, which comprises the following steps: pulverizing dry flax cakes, adding an ethanol solution, soaking in a sealed environment for 0.5-1.5 hours, and treating with ultrasonic for 20 minutes; leaching while stirring, and centrifuging to obtain a flax lignan crude extract; regulating the pH value of the flax lignan crude extract to 11.5-12.5, leaching for 1.5-2.5 hours while stirring, centrifuging to remove the precipitate, and regulating the pH value of the supernatant to 4.0-4.5; adsorbing the supernatant by macroporous resin chromatography; eluting with a 20% ethanol solution to obtain an alcohol solution containing flax lignans, concentrating with a rotary evaporimeter, and carrying out freeze-drying to obtain the finished product flax lignans. The invention also discloses flax lignans prepared by the method. The invention has the advantages of simple extraction technique, low production facility request and high extraction efficiency, and is obviously superior to the traditional solvent extraction method.

The invention discloses a novel active ingredient extraction device for traditional Chinese medicines. The novel active ingredient extraction device comprises a processing box and a base arranged below the processing box, wherein rollers convenient for device carrying are symmetrically arranged on the left side and the right side of the base; damping sleeves are symmetrically fixed on two sides ofthe upper end of the base; a damping bar is arranged at the upper end opening of each damping sleeve in a sliding manner; the upper ends of the damping bars are fixedly connected with the processingbox; a damping spring is arranged in each damping sleeve; each damping bar is fixedly connected with the corresponding damping sleeve through the corresponding damping spring; a lifting top plate is arranged at the upper end opening of the processing box and fixedly connected with the processing box through a connecting flange; and lifting hydraulic cylinders are symmetrically arranged on the leftside and the right side of the processing box. The novel active ingredient extraction device is simple and reasonable in structure, convenient to carry, good in damping performance, and conductive tocrushing cell walls of herbs, so that later extraction of medicinal materials is facilitated, and the medicinal materials can be placed in and taken out conveniently; and the processing box can be quickly cooled down, so that later loading treatment is assisted, and the practicability is high.

The invention belongs to the field of nano materials, and discloses a cobalt-molybdenum alloy and cobalt-molybdenum mixed oxide electrocatalyst and a preparation method and application thereof. The preparation method comprises the following steps: synthesizing a cobalt molybdate precursor through a simple hydrothermal reaction, and further calcining the cobalt molybdate precursor in an H2/Ar atmosphere to obtain the Co3Mo/CoMoOx nanosheet array electrocatalyst. The series of cobalt-molybdenum alloy and cobalt-molybdenum mixed oxide has lower charge transfer resistance and reaction potential barrier of hydrogen evolution and oxygen evolution reaction, and has excellent performance in electro-catalytic hydrogen evolution and oxygen evolution reaction. Meanwhile, the catalyst is low in cost, simple and convenient to operate, simple in process and excellent in catalytic performance, and provides basic application research for the materials in the field of electro-catalysis.

The invention discloses original cream cheese and a preparation method thereof. The original cream cheese is prepared from the following raw materials in percentage by mass of 35-55% of Greek yoghourt, 2-22% of butter, 1-8% of milk protein powder, 10-20% of coffee cream, 0.3-0.8% of table salt and 0.1-0.7% of a stabilizing agent, wherein the Greek yoghourt is fermented milk is prepared through thesteps of fermenting raw fresh milk and filtering off whey, the protein content of the Greek yoghourt is 6-12%, the fat content is 0-8%, and the pH value of the Greek yoghourt is 4.1-4.9. Compared with natural cream, the original cream cheese disclosed by the invention has the advantages that the production technology is simplified, the production cycle is shortened, in the production course, adjusting acidity and complementing water are not needed, the original cream cheese has great advantages in cost, and the nationalisation production of the product namely the original cream cheese can beaccelerated; and besides, the original cream cheese disclosed by the invention has rich milk fragrance, is smooth and fine in texture and free from granules, and can meet the quality demands of imported natural cream cheese.

The invention discloses an organic matter sampling device in underground water. The organic matter sampling device comprises a sampling tank, a water inlet, a collection box, an absorption device anda drain pipe, wherein the collection box is arranged at the top of the sampling tank, a movable plate is arranged in the sampling tank, a guide pipe is arranged on an upper surface of the movable plate, a sleeve is fixedly connected to the upper surface of the movable plate, a screw rod is arranged in the sleeve, a motor is fixedly connected to a right side wall of the sampling tank, a driving shaft is fixedly connected to a shaft extension end of the motor, a first bevel gear and a second bevel gear sleeve an upper end of the screw rod, a half-conical gear sleeves a left end of the driving shaft, and a lower end of a telescopic hose extends to the underground water. The moving plate is driven to move upwards and downwards by the motor, and the underground water is constantly pumped into the sampling tank; and meanwhile, large particle impurity in the underground water is filtered by a sieving plate, organic matter constituent in the underground water is absorbed by the absorption device, the underground water is stirred by stirring blades, the releasing of the organic matter constituent in the underground water is facilitated, and the sampling efficiency is improved.

The invention discloses a multi-element small-amount degradable antibacterial magnesium alloy. The multi-element small-amount degradable antibacterial magnesium alloy is prepared from the following components of, in percentage by weight, 0.4 %-1.2 % of Ca, 0.8 %-1.2 % of Zn, 0.3 %-2.0 % of Ag, 0.02 %-0.2 % of Se, 0.05 %-0.15 % of Mn, and the balance Mg and inevitable impurities, wherein the Se element is added in a manner of Ag2Se. The invention further discloses a preparation method of the novel antibacterial multi-element wrought magnesium alloy. According to the alloy and the method, a castingot is prepared through the multi-element alloying component design, through the high-purity raw material and through the vacuum-atmosphere protection smelting method, so that the purity of the alloy is guaranteed; then turning, the homogenizing treatment, the extrusion and the heat treatment are carried out, so that solid solution strengthening, fine grain strengthening and second phase strengthening are realized, and the mechanical property of the alloy is improved; and the corrosion resistance and the antibacterial property of the alloy are improved through the formation of a CaZnAg phase and the addition of Se.

The invention discloses an efficient preparation method of Sparassis crispa polysaccharides. The method comprises the following steps: S1, drying and crushing Sparassis crispa sporocarp for later use;S2, taking the pretreated Sparassis crispa powder, adding an aqueous dimethyl sulfoxide solution, extracting in a bipolar square-wave high-voltage pulsed electric field with the pulsed electric fieldintensity of 10-50 Kv/cm and the frequency of 200-1000 Hz, and collecting the obtained extract; S3, carrying out microwave extraction on the extract under a microwave power of 300-500 W at an extraction temperature of 100-120 DEG C; and S4, centrifuging the extract subjected to microwave extraction, carrying out reduced pressure concentration on the obtained supernatant, carrying out alcohol precipitation by using anhydrous ethanol to obtain a crude polysaccharide precipitate, washing the crude polysaccharide precipitate with an organic solvent, and drying to obtain the product. The high-voltage pulsed electric field is combined with microwave extraction, and the dimethyl sulfoxide solution is used as an extraction solvent, so that the Sparassis crispa polysaccharides can be efficiently extracted, and the extraction rate and purity of the Sparassis crispa polysaccharides are improved.

The invention discloses a primer and a probe as well as a kit used for avian influenza virus universal type direct RT-PCR detection. The primer and the probe comprise a detecting primer and a detecting probe of the avian influenza virus as well as a probe of internal label RNA. With the adoption of the primer and the probe, a liquid sample can be directly added into a reaction system, so that release, reverse transcription and fluorescent quantitative PCR detection of the virus RNA are continuously and automatically realized in one PCR tube; the purposes of extracting the virus RNA and directly detecting the avian influenza virus in the extracted sample are realized, so that only 1.5 hours are needed for obtaining detected results from a to-be-detected sample; and the defect that RNA is needed to be extracted by conventional RT-PCR is effectively overcome, operation steps can be greatly reduced, the detection speed is greatly increased, the cost is reduced, and cross contamination is effectively avoided.

The invention discloses an anti-electrostatic PP (polypropylene) material and a plate preparation method thereof. The material comprises the following components in parts by mass: 48-63 parts of a 64M40T PP resin, 48-63 parts of a T30S PP resin, 10-12 parts of a carbon fiber, 6-8 parts of white carbon black, 8-10 parts of a macromolecule type anti-electrostatic agent, 3-5 parts of acetylene black,2-4 parts of a nonionic anti-electrostatic agent, 12-14 parts of a cross-linking agent and 5-7 parts of an antioxidant 1010. According to the material, the 64M40T PP resin and the T30S PP resin are adopted as main components, so that the physical properties of the anti-electrostatic PP material can be improved; due to addition of the macromolecule type anti-electrostatic agent, the nonionic anti-electrostatic agent and the acetylene black, the anti-electrostatic property of the prepared anti-electrostatic PP material can be improved, the macromolecule type anti-electrostatic agent has good compatibility with the PP resin, and the surface resistance of an anti-electrostatic PP material plate can be up to 10<7>-10<9>omega/sq.

The invention discloses a nickel or nickel alloy porous material with directional holes, a preparation method thereof and application thereof in a hydrogen evolution electrode. The method comprises the steps that water-based nickel or mixed slurry containing nickel and alloy element powder is injected into a mold, the water-based slurry is directionally solidified and formed through a freezing temperature field, an obtained cold blank is frozen and dried to remove ice crystals, then a binder is removed in a hydrogen atmosphere, and the nickel or nickel alloy porous material is prepared throughhigh-temperature sintering. Preparation of nickel-based alloys with different components can be achieved by controlling the powder components in the slurry, and the porosity, the hole diameter and the microstructure of the alloys can be finely adjusted and controlled through the solid phase content and the freezing condition. The nickel or nickel alloy porous material has the advantages that theprocess is simple, the raw material source is wide, and the nickel-based alloy porous material with the different components and high porosity and high air permeability can be prepared. The prepared porous material is beneficial to release of hydrogen in the water electrolysis process, the hydrogen evolution overpotential can be reduced, the electrolysis efficiency can be improved, and the nickelor nickel alloy porous material has application potential in the field of water electrolysis hydrogen evolution.

The invention relates to a non-polluted application method for the firedamp ferment residue in the technical field of agriculture, which comprises the following steps: directly fetching the firedamp residue deposited at the bottom of anaerobic digestive organs at the locations of discharge tubes at the bottom of a normally operated large and medium sized anaerobic digestive organ with a gross solid content of more than 10 percent; after fetching out the ferment residue from different discharge tubes, sufficiently stirring and mixing in a container and then carrying out split charging; when preparing land before seeding, firstly plowing the land once and removing the scum in the acquired firedamp ferment residue; when the ratio of N: P2O5: K2O in the biogas manure is 0.5 :0.2 to 0.4:0.2 to 0.4, digging and applying by taking 1000kg to 2000kg per mu as the basic fertilizer and then covering the soil horizon. The invention solves a series of problems caused by unreasonable utilization of the prior basic fertilizer, saves energy, fully utilizes the waste resources, realizes waste reutilization as well as improves the energy transformation and material circulation efficiencies.

The invention belongs to the field of food processing, and discloses a lactobacillus plantarum DMDL 9010 microcapsule as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving chitosan in a lactic acid solution, adjusting the pH value to 3-5, adding lactobacillus plantarum DMDL 9010 activated bacterial sludge, fully stirring, then adding a genipin solution, uniformly mixing, then adding plant oil containing span 80, uniformly mixing, stirring to prepare a water-in-oil emulsion, carrying out a cross-linking reaction to obtain a microcapsule suspension, washing with ethyl acetate, and drying to obtain the chitosan microcapsule. And drying to obtain the lactobacillus plantarum DMDL 9010 microcapsule freeze-dried powder. The obtained lactobacillus plantarum DMDL 9010 microcapsule has the advantages of high embedding rate, small particle size, high gastrointestinal tract tolerance, simple preparation method and the like, and has relatively high application value.

The invention relates to a non-pyrotechnic fusing connection separation device. The non-pyrotechnic fusing connection separation device is structurally characterized in that a valving nut A is mountedon a connection base, the shell I is sleeves the outer part of the split nut A and is connected with the connection base, and one end of a press rod is connected with the valving nut A; the valving nut A comprises a nut flap A I, a nut flap A II and a nut flap A III, wherein a ratchet wheel rope tightening mechanism is mounted in the nut flap A I, a fusing mechanism is mounted in the nut flap A II, a locking torsion spring and a fusing rope are sequentially wound around the outer part of the valving nut A, the fixing end of the locking torsion spring is fixedly mounted on the nut flap A III,the free end of the locking torsion spring is connected with one end of the fusing rope, and the other end of the fusing rope is connected with the ratchet wheel rope tightening mechanism. The non-pyrotechnic fusing connection separation device has the characteristics of small volume, light weight, large bearing capacity, energy conservation and environmental protection, and capable of repeatedlytesting and using.

The invention discloses an air purification disinfectant which is obtained by soaking a variety of traditional Chinese medicine extracts in warm water, releasing and dissolving medicine components in the water and adjusting the solution to weak alkaline. The traditional Chinese medicine extracts include Chinese mosla herb extract, climbing groundsel herb extract, atratylodes rhizome extract, folium artemisiae argyi extract, eucalyptus grandis leaf extract, dandelion extract, honeysuckle extract, acorus calamus extract and sandalwood extract. The disinfectant has dual functions of sterilization and purification and dust removal; and after being spraying, the disinfectant is light in smell, non-irritating and harmless to the human body.

The invention claims to protect a method for increasing the content of water-soluble humic acid in a humic acid matrix. Adopted trichoderma is (trichoderma sp.HZD-1) preserved in China General Microbiological Culture Collection Center (CGMCC) in June 1, 2015 with a preservation number of CGMCC No.10928. compared with the prior art, the method has the advantages that the production method is simple, the biological activity of the product is high, the content of water-soluble humic acid in the humic acid matrix can be effectively increased, the biological activity and utilization rate of the water-soluble humic acid are increased, and the chemical residue and the secondary pollution are avoided.