50results about How to "No special process requirements" patented technology

The invention discloses a preparation method of an alkaline secondary zinc-nickel storage battery. The method adopts an inorganic organic compound thixotropy alkaline gel electrolyte to alleviate the dissolution of a zinc electrode plate and lower the zinc dendrite generating probability; the method adopts a two-diaphragm combining manner for combining a polypropylene diaphragm subjected to grafting or sulphonation treatment and a PP / PE blending diaphragm, wherein the modified polypropylene diaphragm is adopted to effectively prevent zinc ions from enrichment in an imbibition diaphragm, and the blending type diaphragm is adopted to effectively keep the imbibition quantity of the diaphragm and avoid a condition that the diaphragm lacks of a solution so that the internal resistance of the battery is increased; the organic or carbon source coating treatment is preformed on zinc oxide, coating carbon is used for one or more coating treatment, and thus the conductivity and the combination property of the material are improved; nanometer sub-titanium oxide porcelain powder is adopted as a zinc electrode plate addition agent and is good in conductivity and electrochemical stability, and thus the property of a zinc electrode plate is remarkably improved by adding the material.

The invention discloses a preparation method of a high-free-flowing-property fluorine polymer-based novel safe environment-friendly firework propellant, and belongs to the technical field of fireworks and crackers. The preparation method mainly comprises the following steps: 1, carrying out chemical modification, coating, powder mixing, drying and other processes to obtain a basic formula A of a fluorine polymer / active metal powder formula propellant; and 2, adding the basic formula propellant A into a free-flowing agent, and carrying out powder mixing and granulation processes to obtain a final product. The prepared product is composed of a fluorine polymer based safe and environment-friendly firework propellant basic formula and the free-flowing agent and has the advantages of being safe and environment-friendly of fluorine polymer based safe and environment-friendly fireworks, by adding the free-flowing agent, the processing performance of agent granulation is improved, meanwhile, the safety performance and reliability of agents are further improved, the brisance of a reaction system is relieved, and the noise pollution to the environment after the propellant powder reacts can be reduced. The method can be widely applied to production of propellants for fireworks and crackers.

The invention relates to a preparing method of a composite energetic fragment with a metal matrix on an outer layer and a polymer matrix on an inner layer, and belongs to the field of energetic materials and active fragment materials. Tungsten powder / zirconium powder is placed in a comprehensive planetary ball mill to be evenly mixed; uniform powder is placed in a customization mold, and pre-pressing molding and demolding are carried out; sintering is carried out, and a hollow cylindrical product A is obtained; aluminum powder, tungsten powder and polytetrafluoroethylene powder are placed in the comprehensive planetary ball mill to be evenly mixed, the hollow cylindrical product A is filled with uniform powder, and pre-pressing molding is carried out; and sintering is carried out, and a final product is obtained. The material serves as the energetic material and is very insensitive and safe under the static state, has certain toughness and strength and can be directly machined. Under the high-speed impact effect, violent explosion and combustion happen, and high heat high temperature is generated; and the material serves as the fragment material, high kinetic energy and high chemical energy released after impact explosion are used, and comprehensive damage of penetration, inner explosion, fire setting and overpressure of the target can be achieved.

The invention discloses a transistor based on an enhanced grid structure. The transistor comprises a substrate, a buffer layer, a GaN (gallium nitride) layer, a barrier layer, a source electrode, a drain electrode and a grid electrode, wherein the substrate, the buffer layer, the GaN layer and the barrier layer are sequentially stacked from bottom to top, the source electrode is arranged on an aluminum gallium nitride layer, the grid electrode is positioned between the source electrode and the drain electrode, and the barrier layer is AlGaN or InAlGaN, and the grid electrode is p-type Al1-xGaxN (0<=x<=1) or p-type In1-y-zGayAlzN (0<=y<=1; 0<=z<=1). A DLC (Diamond-like carbon) layer is arranged on the grid electrode, and the content of sp2 keys of DLC is higher than 50%. According to the transistor, enhanced operation is realized, the self-heating effect of a transistor device can be reduced by diamond-like carbon, and stability is improved. The invention further provides a preparation method of the transistor.

The invention relates to the technical field of special aquaculture, in particular to a method for imitating ecological reproduction and healthy and efficient breeding of snakeheads. Including breeding mud ditch construction, breeding mud pond construction, moon snakehead imitation ecological breeding and healthy and efficient breeding. The breeding process is: selection and cultivation of fish before March of the first year - natural pairing of fish breeding into production from April to August of the first year Spawning in mud ponds for egg cultivation - hatching and seed cultivation of fish eggs from May to September of the first year - seedlings are graded and put into breeding mud ponds for cultivation from June to October - adult fish start to market in January of the second year . From the structure of the Channa aquaculture facility, the adjustment of the culture water quality, the species of culture bait, the drugs for disease prevention and disinfection to the whole process of cultivation, it is basically in the state of ecological reproduction and healthy and efficient cultivation. The product quality is similar to that of the wild, especially suitable for industrialization. Demonstration piles wide.

The invention discloses a preparation method of safe and environment-friendly firework propellant powder based on self-sustaining reaction, and belongs to the technical field of fireworks and crackers. The safe and environment-friendly firework propellant powder is prepared from the following components in parts by weight: 30-75 parts of high-molecular fluorine polymer with the particle size of 50-400 microns; 25-70 parts of active metal powder with a particle size of 10-75 [mu]m; 0.5-3 parts of a silane coupling agent; and 0.5-5 parts of a binder. The preparation method adopts the processes of chemical modification, coating, powder mixing, granulation, drying and the like, and is simple in process, free of special process requirements, low in cost and convenient for batch production. According to the invention, the defects of high product pollution, high mechanical sensitivity, high static and spark sensitivity and low safety in the production and transportation process of the current black powder for fireworks and crackers can be overcome. The obtained product has the advantages of being free of sulfur and nitrogen, little in smoke, environmentally friendly, low in mechanical sensitivity, high in safety and the like, and can be widely applied to production of propellant powder for fireworks and crackers.

The invention provides a graphene-based antibacterial fabric preparation method, comprising the following steps: (1) Fabric pretreatment: soak the fabric with a treatment solution containing lye and a penetrant, and then wash the fabric with water to neutrality; (2) Preparation of dyeing solution: dilute graphene oxide slurry with water, then add buffer solution and BB emulsion, and mix to obtain dyeing solution; BB emulsion is a mixed emulsion of benzyl benzoate and castor oil polyoxyethylene ether; (3) High-temperature dyeing: high-temperature dyeing of the fabric with a certain liquor ratio and the method of temperature programming; (4) drying and baking: drying the high-temperature dyed fabric at a temperature of 110-150°C, and then drying The dried fabric is baked at 180-200°C for 1-5 minutes to form a graphene-based antibacterial fabric. The graphene-based antibacterial fabric preparation method of the present invention has a simple process and is easy to operate, and the prepared textile fabric has excellent antibacterial, anti-ultraviolet functions and instant cool feeling performance.