41results about How to "Skeletal stability" patented technology

The invention discloses perylenebisimide, a composite photocatalytic material thereof, a preparation method of the composite photocatalytic material and application of the composite photocatalytic material in removal of organic pollutants in a water body. The method comprises: calcining melamine to obtain melem; mixing the melem, perylenetetracarboxylicdianhydride and a solvent to obtain a mixture, and performing solvothermal reaction on the mixture in an inert atmosphere to obtain thebisimide; and dispersing the perylenebisimide into an aqueous solution containing a bismuth source and a tungsten source and carrying out hydrothermal reaction toobtain the perylenebisimide / bismuth tungstate composite photocatalytic material. According to the organic-inorganic composite photocatalytic material constructed by the invention, on one hand, the composite photocatalytic material has a wider spectral response range due to the introduction of a visible-light-responsive organic photocatalytic material; on the other hand, due to the introduction of an inorganic semiconductor catalyst, the composite material can generate active free radicals with higher oxidability, and the photocatalytic degradation performance of the composite material on the organic pollutants is enhanced, so that the constructed organic-inorganic composite photocatalytic material has excellent catalytic performance.

The invention discloses a catalytic cracking double-metal deactivator. The catalytic cracking double-metal deactivator mainly comprises an antimony single agent and a cerium single agent and is characterized in that the content of antimony in the antimony single agent is 17-21%, the content of cerium in the cerium single agent is 6-9%, and the rest is water. A preparation method of the catalytic cracking double-metal deactivator comprises the following steps of: (1) preparation of the antimony single agent: sequentially adding water, tartaric acid and antimony oxide to a reaction kettle for reaction, adding monoethanolamine to prevent blasting boiling, heating till boiling, refluxing for 20-40 min, and emptying after cooling, thus obtaining the antimony single agent; and (2) preparation of the cerium single agent: adding water, tartaric acid and monoethanolamine together to a reaction kettle for reaction, adding rare earth powder to prevent carbon dioxide from generating and overflowing from the reaction kettle, stirring and heating to boil at 102 DEG C after completing dropwise addition, refluxing for 1-2h, and emptying after cooling, thus obtaining the cerium single agent; and (3) compounding of the antimony single agent and the cerium single agent: uniformly mixing and stirring the antimony single agent and the cerium single agent to obtain the double-metal deactivator.

The invention discloses a preparation method of coating slurry based on a lithium manganese iron phosphate flexible slurry wrapped ternary material. The preparation method comprises the following steps of: (1) weighing a flexible film-forming material, adding N-methyl pyrrolidone, dissolving and preparing a viscous emulsion with a mass percentage of 2% to 10%, stirring and dispersing or ball milling; (2) weighing the conductive agent of SUPER-P, conductive graphite or conductive carbon powder of which a total solid content of a design system is 0%-10%; (3) weighing the lithium manganese iron phosphate material of which the total solid content of the design system is 5% to 50%; (4) adding the weighed lithium manganese iron phosphate into the prepared viscous emulsion, and preparing a uniform viscous film-forming slurry wrapped emulsion by dispersing and stirring, or ultrasonic dispersion, or ball milling and homogenizing; and (5) weighing the ternary material of which the solid contentof the design system is 50% to 95%, adding the ternary material into the prepared coating emulsion, and stirring and dispersing the mixture uniformly, so as to prepare the lithium iron manganese phosphate flexible coating ternary material that can be used for direct coating. According to the preparation method of coating slurry based on a flexible coating ternary material containing lithium manganese phosphate, the safety problem of the ternary materials is effectively solved, the cycle life and energy density are improved, and the method is simple and reliable and is suitable for industrial production.

The invention belongs to the technical field of agriculture, and particularly relates to a cylindrical sweet cherry shaping and pruning method applicable to labor-saving operation. The pruning methodparticularly includes the steps: (1) erecting a support; (2) planting biennal seedlings, notching buds to facilitate directional branching, enabling small bearing branch groups to be spirally distributed, continuously removing tops of new shoots, and cutting back the shoots in winter; (3) planting full bearing period trees with 2-3 years old, and pruning the trees according to matched technical measures. A cylindrical sweet cherry shaping and pruning technique for labor-saving operation is provided according to characteristics of Gisela dwarfing stocks, the cylindrical sweet cherry trees pruned by the method has the advantages that framework is stable, light transmission performance is high, each branch can be irradiated, excessive nutrient consumption is avoided, shapes are rapidly formed, high yield is achieved at early stage, high-quality fruit rate is high, the pruning method is simple and easy, fruits are easily picked, labor is saved, and line spacing mechanical operation, high-density cultivation and the like are facilitated by the aid of wide line spacing.

The invention relates to a simple pruning method of a medlar tree. The method is based on a control method of 'single bud and branch + segmentation + fixed height', pruning is performed upward from the ground in units of segments, pruning is performed mainly with the control method of single bud and branch except for the first segment, and the height of the medlar tree is finally maintained at 150-180 cm. The pruning method not only can improve the yield and quality of medlar fruits, but also has the advantages that the rules for the pruning method are simple, a pruning worker learns and masters the method conveniently and does not make mistakes in the pruning process easily, the requirements for the pruning worker are reduced, and the labor efficiency of the pruning worker is improved; after the medlar tree is shaped, a mechanical means assists in pruning conveniently, for example, after one year of manual pruning, mechanical pruning can be performed for one year, thereby saving halfof the work, greatly improving the labor efficiency of medlar pruning and reducing the cost.

The invention belongs to the technical field of chemical engineering, and particularly relates to a preparation method of a core-shell type titanium silicalite molecular sieve coated zinc-cadmium alloy particle catalyst and a method for preparing N, N-diethylhydroxylamine by using the core-shell type titanium silicalite molecular sieve coated zinc-cadmium alloy particle catalyst. Tetrabutyl titanate is used as a titanium source to assemble a shell, and the core-shell type titanium silicalite molecular sieve coated zinc-cadmium alloy particle catalyst is used for preparing N, N-diethylhydroxylamine through diethylamine green oxidation reaction. The core-shell type titanium silicalite molecular sieve coated zinc-cadmium alloy particle catalyst has both titanium oxygen sites and transition metal particles, is a bifunctional catalyst, has the advantages of large pore diameter, large specific surface area, stable skeleton, high catalytic oxidation activity, high selectivity on N, N-diethylhydroxylamine, easy separation and recovery after reaction, reusability, and wide application prospect. Good application prospects are realized.

The invention discloses a diazepam lipocalin mimetic antibody, and the DNA sequence expressing the antibody is the sequence shown in SEQ ID NO.1 in the sequence list. The diazepam lipocalin mimetic antibody of the invention lays the foundation for realizing the rapid detection of diazepam. In lipocalin, the embedding rate of the recognition site that can interact with the target molecule is as high as 95% in the protein, while the embedding rate of the binding site in the antibody molecule is only 66%. This is due to the large mutual contact surface within the lipocalin molecule that can bind to the target molecule (Ingo, 2003). Lipocalin has a simple structure, small molecular weight, a large recognition site that can bind to target molecules, and a stable skeleton, which has unique advantages compared with antibodies.

The invention belongs to the technical field of agriculture, and in particular relates to a method for shaping and pruning sweet cherry columns suitable for labor-saving operations. The pruning method is as follows: (1) Erection of supports; (2) If the 2-year-old seedlings are used for colonization, the buds are carved to promote the directional branching, so that the small fruiting branches are distributed in a spiral shape; the new shoots are continuously topped; heavy pruning in winter (3) pruning of trees in the 2nd-3rd year of planting and full fruit stage (5) supporting technical measures; the present invention provides a sweet cherry cylindrical shaping and pruning technology for labor-saving operation according to the characteristics of gisela dwarfing rootstocks The pruned sweet cherry cylindrical shape of the present invention has a stable tree body skeleton and strong light transmission, which can make the branches see the light without excessive nutrient consumption; fast forming, early high yield, high-quality fruit rate; simple pruning method It is easy to walk, easy to pick, labor-saving; wide between rows for mechanized operation and high-density cultivation of facilities and other advantages.

The invention provides a high-pressrun waterless offset printing plate and a preparation method thereof, and particularly relates to the technical field of printing plates. The waterless offset printing plate is prepared by taking a silica gel layer composition prepared by taking peach gum extract and octyl polymethylsiloxane as main raw materials as a silica gel layer and taking protective glue prepared by taking lacquer tree wax, pigskin and tamarind gum as main raw materials as a protective glue layer. The printing plate is good in dust resistance and light transmission, tough, wear-resistant and good in insulativity, and the printing resistance can reach more than 140000 prints, so that printed matters are not easy to get dirty and fall off from a screen. The method is stable and controllable in process, easy to implement and suitable for large-scale production.

The invention relates to a simple pruning method of a medlar tree. The method is based on a control method of 'single bud and branch + segmentation + fixed height', pruning is performed upward from the ground in units of segments, pruning is performed mainly with the control method of single bud and branch except for the first segment, and the height of the medlar tree is finally maintained at 150-180 cm. The pruning method not only can improve the yield and quality of medlar fruits, but also has the advantages that the rules for the pruning method are simple, a pruning worker learns and masters the method conveniently and does not make mistakes in the pruning process easily, the requirements for the pruning worker are reduced, and the labor efficiency of the pruning worker is improved; after the medlar tree is shaped, a mechanical means assists in pruning conveniently, for example, after one year of manual pruning, mechanical pruning can be performed for one year, thereby saving halfof the work, greatly improving the labor efficiency of medlar pruning and reducing the cost.

The invention relates to a 2,3'5,5'-diphenyl tetracarboxylic acid cadmium complex and a preparation method thereof and relates to the field of cadmium complex fluorescent materials. A chemical formula of the 2,3'5,5'-diphenyl tetracarboxylic acid cadmium complex is {[Cd2(bptc)(bih)(H2O)2].H2O}n, wherein bptc is 2,3',5,5'-diphenyl tetra formic acid anion ligand, and bih is 1,6-di(imidazole-1-) hexane. The preparation method of the 2,3'5,5'-diphenyl tetracarboxylic acid cadmium complex comprises the following steps: under hydrothermal condition, dissolving 2,3',5,5'-diphenyl tetra formic acid, an inorganic base, 1,6-di(imidazole-1-) hexane and a cadmium salt in water, adding the obtained mixed solution into a closed reaction still, heating to 120-160 DEG C at a speed of 10 DEG C per hour, performing heat preservation for 3 days, then cooling to room temperature under natural conditions, so that colourless massive crystals are generated, and then washing and drying, so that the target product, namely the 2,3'5,5'-diphenyl tetracarboxylic acid cadmium complex, is obtained finally. The 2,3'5,5'-diphenyl tetracarboxylic acid cadmium complex has stable fluorescence property and high yield, and the preparation method is simple, and has good repeatability.

The invention provides a multi-core multi-variable metal organic framework material and its synthesis and application. The metal organic framework material, its molecular formula is {(NH 2 (CH 3 ) 2 )[W 9 (μ 3 -OH) 2 (μ 4 -OH)(X) 2 (Y) 8 (Z)]} n ; Among them, W is Co 2+ or Ni 2+ ; X is 4,4',4"'-(pyridine-2,4,6-triyl)tribenzoic acid, phenyl-1,3,5-tribenzoic acid, 4,4',4"-all Triazine‑2,4,6‑triylbenzoic acid; Y is isonicotinic acid, trifluoroisonicotinic acid, trimethylisonicotinic acid; Z is terephthalic acid, naphthalene dicarboxylic acid, thiophenedicarboxylic acid, Dibromobenzoic acid; n is the number of repeating units. The metal organic framework material can selectively adsorb acetylene in carbon dioxide. And it can be used repeatedly, the adsorption cost is low, and it has a great application prospect in the industrial purification of acetylene and the recovery of acetylene.

Melamine is calcined to obtain melem; melem, perylene tetracarboxylic dianhydride and a solvent are mixed to obtain a mixture, and the mixture is subjected to a solvothermal reaction in an inert atmosphere to obtain perylene imide; and the perylene imide is dispersed in an aqueous solution containing a bismuth source and a tungsten source, and is subjected to a hydrothermal reaction to obtain a perylene imide / bismuth tungstate composite photocatalytic material. By means of constructing an organic-inorganic composite photocatalytic material, the introduction of the organic photocatalytic material that responds to visible light may enable the composite material to have a wider spectral response range; and the introduction of an inorganic semiconductor catalyst enables the composite material to produce more oxidizing active free radicals, thereby enhancing the photocatalytic degradation performance of the composite material on organic pollutants. The constructed organic-inorganic composite photocatalytic material has an excellent catalytic performance.

The invention discloses a coating slurry preparation method based on lithium manganese iron phosphate flexible coating ternary material, comprising the following steps: (1) Weighing the flexible film-forming material, adding N-methylpyrrolidone, dissolving and configuring the mass percentage It is a viscous emulsion of 2%-10%, which can be stirred and dispersed or ball milled; (2) Weigh the conductive agent of SUPER-P, conductive graphite or conductive carbon powder with a total solid content of the design system of 0-10%; (3) Weigh 5%-50% lithium manganese iron phosphate material with a solid content of the designed system; (4) Add the weighed lithium manganese iron phosphate into the prepared viscous emulsion, disperse and stir, and configure it into a uniform viscous easy-to-film-forming bag (5) Weigh the ternary material with a solid content of 50%-95% of the designed system, add it to the prepared slurry emulsion, stir and disperse evenly, so as to prepare flexible lithium iron manganese phosphate that can be used for direct coating Pulping ternary material. The process solves the safety problem of ternary materials, improves cycle life and energy density, is simple and easy to implement, and is convenient for industrial production.

The invention discloses a quasi-solid electrolyte and its preparation method and application. The quasi-solid electrolyte includes: 50% to 80% methyl methacrylate; 10% to 30% Li 1.5 al 0.5 Ge 1.5 (PO 4 ) 3 ; 10% to 30% mesoporous molecular sieve; the invention also discloses the preparation method of the quasi-solid electrolyte and the lithium ion battery using the quasi-solid electrolyte; , to avoid side reactions caused by excessive contact between the electrolyte and the positive and negative electrodes; while ensuring that the battery has good electrochemical performance, the safety performance is also significantly improved.

Provided is an organic electroluminescent (organic EL) element that exhibits a high efficiency while having a low drive voltage, and that exhibits a high stability while being driven. The organic electroluminescent element contains, in a light-emitting layer formed between an anode and a cathode opposing each other, a first host selected from indolocarbazole compounds represented by general formula (1), a second host selected from carbazole compounds represented by general formula (2), and a light-emitting dopant material. Here, Ar2 and Ar3 are aromatic hydrocarbon groups, L1 is a direct bond or a phenylene group, and L2 is an o-phenylene group.

The invention discloses a tree-form cultivation system and method for ficus carica. An improved tree form is designed, a tree body formed according to the tree form cultivated by using the method disclosed by the invention is appropriate in distances among fruiting branches, proper in height, firm in skeleton, neat in crown, obvious in principal and subordinate and uniform in branches, so that theventilation and light transmittance properties are good, ficus carica trees can favorably grow and fruit, the yield is stable and is increased, it is also convenient to manage and pick fruits, and problems to be solved urgently in current ficus carica cultivation are solved.