65results about How to "Suitable for industrial development" patented technology

The invention discloses a low-cost mass preparation method of high-quality graphene. The low-cost mass preparation method comprises the following steps that graphite and an additive undergo a local or intercalation reaction so that boundary functionalization or intercalated graphite formation is realized; and graphite is peeled by ball milling or an ultrasonic method so that graphene is obtained. The high-quality graphene has water solubility and can forms good graphene hydrosol. Compared with graphene obtained by the traditional chemical peeling method, the high-quality graphene provided by the invention can be prepared simply, has a low cost, less defects, good conductivity and high quality and is suitable for mass production. The high-quality graphene provided by the invention has wide application prospects in photoelectric devices such as copper indium gallium diselenide, cadmium telluride and dye sensitization solar cells and in fields of panel display, supercapacitors, field emitter materials, and lithium ion batteries.

The method for preparing high molecular weight fatty polyester whose number-average molecular weight is 28000-40000 and weight-average molecular weight is 6000-13000 by adopting two-stage process is characterized by that it utilizes binary acid, dibasic alcohol and (or) hydroxy acid to make polycondensation reaction to prepare terminal hydroxyl polyester performed polymer, then adopts organic silicon azane compound as chain extender to make chain expansion reaction, the mole ratio of terminal hydroxyl polyester performed polymer and organic silicon azane chain extender is 1:0.8-2.0, and the Chain expansion reaction temp. is at 90-200 deg.C. It is simple in preparation process, non-toxic, high-effective, moderate in reaction condition, and suitable for industrial production.

The invention relates to a solar battery, in particular to a back contact heterojunction solar battery based on a P-type silicon slice. According to a back face feature, the back contact heterojunction solar battery is divided into an N-type region and a P-type region, wherein the N-type region forms a P+a-si / i-a-si / P-c-si / P+c-si / i-a-si / N-a-si heterojunction structure; and the P-type region formsa P+a-si / i-a-si / P-c-si / P+c-si heterojunction structure. The solar battery has higher spectral response; sunshine has a longer light transmission route in the battery; the thickness of the solar battery is greatly reduced compared with that of the conventional crystal silicon solar battery; electrodes are all printed on the back face of the battery, so the problem that the front electrode of the conventional solar battery blocks light is solved; therefore, short-circuit current of the solar battery is increased and the conversion efficiency of the solar battery is improved greatly; and by a low-temperature sintering process, a production process is simplified greatly and production cost is reduced; and the solar battery is applicable to industrialized production.

The invention discloses a method which utilizes impinging stream equipment to prepare lithium ion battery anode materials. The method comprises the following steps: hydroxides or soluble salts of Li and soluble salts of transition metals are respectively dissolved into deionized water to form solutions, then the two solutions are impinged with each other in the impinging stream equipment at a speed of 2 m / s-30 m / s and react with each other, a sediment produced by the reaction is moved into a high temperature furnace after being washed and dried, calcined for 3h-15h at 300 DEG C-700 DEG C and then cooled down, finally a Li-ion battery anode material is obtained. The method provided by the invention has simple process, the reaction time can be effectively shortened and the production efficiency can be improved; the Li-ion battery anode material obtained by adopting the method has even grains, small grain size and high electrochemistry capacity.

The invention belongs to the technical field of plant ingredient extraction, and discloses a method for preparing diosgenin from B acid DES (deep eutectic solvent) hydrolysis. Choline chloride and B acid are heated to a molten state so as to obtain a DES; dioscorea zingiberensis rhizome raw material powder, the DES and petroleum ether are added into a reactor; the temperature is raised to 100 to 130 DEG C; stirring and hydrolysis reaction are preformed; reaction liquid is subjected to filtering or centrifugal separation; a liquid petroleum ether phase is taken; petroleum ether recovered through evaporation; the diosgenin in the rest solid phase is extracted by using water saturation normal butanol solution; the normal butanol and the water are recovered through evaporation; the diosgenin is obtained. The characteristic that the B acid DES and the diosgenin can form strong hydrogen bonds is utilized, so that the DES can realize the selective extraction of the diosgenin from the raw materials for hydrolysis. The method has the advantages that the reaction selectivity is good; the pollution is low; the reaction conditions are mild; the problem of high pollution caused by simultaneoushydrolysis of cellulose and starch in the raw materials into sugar in a conventional hydrolysis process can be solved.

The invention relates to a solid fuel prepared by hydrothermal carbonization of an aqueous phase component of biological oil as well as a method thereof. The method comprises the following steps: (1) preparing the aqueous phase component of biological oil; (2) placing the aqueous phase component of biological oil in a high pressure reaction kettle, fastening a kettle cover, and replacing air in the kettle by nitrogen, hydrogen or inert gases; (3) heating to required reaction temperature, stirring, carrying out hydrothermal carbonization at constant temperature for over 2 hours, wherein the hydrothermal carbonization temperature is 100-300 DEG C; and (4) filtering and separating products after reaction, and drying to obtain the solid fuel. Compared with the conventional method for preparing fuels by saccharide and saccharide derivatives of the aqueous phase component of the biological oil, the method provided by the invention has the advantages of low energy consumption, mild reaction condition, simple technical process, easiness in separating reaction products, environment friendliness and the like.

The invention discloses a lithium ion adsorbent as well as a preparation method and application thereof. A vermiculite pretreatment method comprises the following steps: 1) crushing and sieving vermiculite so that a particle size of the vermiculite is less than 150 Mum; 2) treating the crushed vermiculite with nitric acid vapor for a set time, placing the treated vermiculite into deionized water,performing ultrasonic treatment for a set time; and 3) filtering the treated vermiculite and washing to be neutral to obtain the pretreated vermiculite. The pretreated vermiculite is used as a carrier, lithium nitrate is used as a template molecule, crown ether is used as a chelating agent, and methacrylic acid is used as a functional monomer to perform free polymerization reaction under action ofa crosslinking agent and an initiator so as to form a stable lithium ion imprinted polymer, wherein the lithium ion imprinted polymer has good selective adsorption performance for lithium ions and has relatively good regeneration performance.

The invention belongs to the technical field of aircraft fuel systems, and relates to a design and a structure of a brushless multi-working-condition direct-current electrically-driven pump. The brushless multi-working-condition direct-current electrically-driven pump is characterized in that a brushless direct-current motor with multi-state working capability drives an impeller which is arranged on a shaft of the brushless direct-current motor to rotate; pumping fuel oil flows through a filter screen, a pump core shell and the impeller to be subjected to centrifugal supercharging, then flows into a radial guide vane for further diffusion supercharging and flows in an axial direction; the supercharged fuel oil passes through an annular flow channel positioned between a pump cover and the shell of the motor to converge and is output through a check valve at the top of the pump cover and a valve shell. The former fuel delivery pump is designed according to the maximum working condition even if being in multiple working states and has no self-adjusting capability, the flow pressure is controlled by virtue of an adjusting valve and the working is carried out on a single curve; however, due to the multiple working conditions which are designed for being matched with the brushless multi-working-condition direct-current electrically-driven pump, the requirement on the current working condition can be rightly met when the pump is in various states, and the pump works on a group of similar flow and pressure curve so as to form a larger working enveloping range.

The invention provides a traditional Chinese medicinal material bio-based carbon nanodot. The bio-based carbon nanodot is a ginseng total saponin carbon nanodot. The carbon dot surface of the total ginsenoside is rich in alcohol / phenolic hydroxyl, amino, carboxyl and other structures, the surface groups are rich, subsequent modification and compounding are facilitated, and the total ginsenoside has good time, pH value and salt stability; various cell fluorescence imaging experiments prove that the total ginsenoside carbon dots can be used as a biological fluorescence probe; meanwhile, the obtained total ginsenoside carbon dots have a specific inhibition effect on rat adrenal pheochromocytoma cells (PC12 cells), and have no obvious proliferation or inhibition effect on other cells (HeLa cells, BRL3A cells and LO2 cells); meanwhile, the total ginsenoside carbon dots can be used as fluorescent probes and can be taken by various cells (BRL3A cells, LO2 cells and QGY7703 cells).

The invention discloses a reactor for hydrogen production through decomposition of hydroiodic acid and a hydrogen production method of the reactor and belongs to the technical field of chemical equipment and hydrogen production. The reactor is a U-shaped tubular heat exchange reactor and comprises a channel, a tube plate, a barrel, a U-shaped reaction tube and other components. Parts making contact with hydroiodic acid such as the U-shaped tube is made of corrosion-resistant silicon carbide or nickel base alloy, and the nickel base alloy comprises HastelloyB, C or X series alloy; parts makingno contact with hydroiodic acid such as the barrel is made of martensitic steel, austenitic steel or nickel base alloy. The hydrogen production method comprises the steps as follows: the U-shaped tubular heat exchange reactor is used as a hydroiodic acid decomposition reactor, a catalyst is placed in the U-shaped tube, high-temperature helium or high-temperature molten salt enters the barrel via aheating medium inlet, and reaction material hydroiodic acid is introduced into the U-shaped tube for decomposition for hydrogen production. The reactor only comprises one tube plate and few sealing surfaces and has better heat transfer performance and high loading capacity. The hydrogen production method is simple, feasible and reliable in operation.

The invention relates to the technical field of synthesis processes of insecticides, and discloses a preparation method of chlorantraniliprole, which comprises the following steps: 1) adding 4-8 partsof maleic anhydride and 4-8 parts of methanol into a single-necked bottle, stirring the mixture, heating to 50 DEG C, and carrying out heat preservation reaction for 0.5-1.5 hours to obtain monomethyl maleate; and 2) cooling 80-120 parts of a hydrogen bromide-glacial acetic acid solution to 0 DEG C, then dropwise adding 3-5 parts of the monomethyl maleate, after addition is completed, carrying out heat preservation and stirring for 3-7 min, so that a large amount of a yellow viscous substance appears, and the monomethyl 3-bromomaleate can be prepared. The invention discloses a preparation method of chlorantraniliprole. The maleic anhydride, 2,3-dichloropyridine and 2-amino-3-methylbenzoic acid are adopted as starting materials to synthesize the target compound chlorantraniliprole througha convergent reaction. The structure is determined through HNMR, the route is mild in reaction condition, easy and convenient to operate and separate, raw materials are easy to obtain, special equipment is not needed, industrial production is easy to achieve, the action mechanism is novel and unique, and wide application and development prospects are achieved.

The invention discloses a single-vibrator excited dual-traveling wave rotary ultrasonic motor. The single-vibrator excited dual-traveling wave rotary ultrasonic motor comprises a rotor, a stator, a stator base, a base bearing, a pre-tightened connecting base, a pre-tightened bolt and a rotor output shaft; the rotor is arranged at the bottom end of the rotor output shaft; the stator is arranged at the top end of the stator base; the base bearing is arranged at the bottom end of the stator base; the pre-tightened connecting base is arranged in an inner hole of the base bearing and is connected with the rotor output shaft; and the pre-tightened bolt penetrates an inner hole of the pre-tightened connecting base and is screwed with the rotor output shaft. The rotor and the stator have a consistent inherent frequency. Two phases of traveling waves with same vibration type and consistent direction of propagation can be generated on the rotor and the stator respectively only by carrying out power supply excitation on the stator when the motor works. The single-vibrator excited dual-traveling wave rotary ultrasonic motor improves the output performance of the traditional traveling wave rotary ultrasonic motor and overcomes a series of problems caused by voltage excitation for the rotor in the existing dual-traveling wave rotary ultrasonic motor.

The invention discloses a new and old pavement base splicing interface treatment material, belongs to the field of road engineering, and aims to provide a new and old pavement base splicing interfacetreatment material for highway reconstruction and extension engineering. The new and old pavement base splicing interface treatment material comprises, by weight, 50-100 parts of an organic silicon modified polyurethane emulsion, 1-3 parts of organic modified rectorite, 100-200 parts of cement, 0.5-1.5 parts of a water reducer, 20-50 parts of water and 0.5-2.5 parts of a composite retarder. The new and old pavement base splicing interface treatment material is used for solving the problems of existing base splicing interface materials, and has the advantages of simple preparation process, stable performances, high bonding strength and good splicing effect.

The invention relates to a traditional Chinese medicine preparation for female pre-pregnancy conditioning. The preparation comprises the following traditional Chinese medicines: rhizoma polygonati, rhizoma dioscoreae, poria cocos, fructus lycii, fructus mori, fructus rubi, cortex cinnamomi, fructus foeniculi, flos caryophyllata and dried orange peel. The traditional Chinese medicine preparation is of a scientific formula, and the curative effect is verified by experimental studies and years of clinical use. The traditional Chinese medicine preparation has a perfect curative effect of pre-pregnancy conditioning of right-age female and particularly late-pregnancy female.

The invention discloses a diatom ooze integrated wallboard and a manufacture method thereof, and relates to the technical field of new building materials. The integrated wallboard is prepared from, byweight percent, 50-70% of diatomite mine powder, 15-35% of resin, 3-10% of processing agents, 3-8% of stabilizing agents, 0.5-2% of inner lubricating agents, 0.5-2% of PE (polyethylene) wax, 0.1-2% of coupling agents, 0.5-3% of foaming agents and 10-20% of bamboo wood fibers. According to the manufacture method of the wallboard, components are mixed, the mixed components are extruded and formed by a plastic extruding machine, skin surfaces of semi-finished products are grinded and drawn by a special-shaped grinding machine and a wire drawing machine, and irregular micro-holes are formed in the surfaces, so that the diatom ooze integrated wallboard is prepared. The diatom ooze integrated wallboard has obvious functions of resisting water, retarding flame, removing formaldehyde, moisture and odor, insulating heat and noise, purifying indoor sir and the like, the diatom ooze integrated wallboard is simple to prepare, low in production cost, suitable for industrial development and provided with excellent environment-friendly indoor and outdoor decoration materials, and materials are easily obtained.

The invention relates to a crystal of a dibutyryl adenosine cyclophosphate calcium salt, the structural formula of the crystal is C72H92Ca2N20O32P4.9H2O, belongs to an orthorhombic crystal system anda P212121 space group, the cell parameters are shown in the description, alpha=beta=gamma=90 degrees, Z=4, the cell volume V is shown in the description , R=0.07, the true density of the crystal is 1.455 kg / m<3>, each cell comprises four minimal asymmetric units, and each minimal asymmetric unit further comprises 4 dibutyacyl adenosine cyclphosphate anions, 2 calcium ions, and 9 crystal water. Thestacking density of the crystal powder is more than 0.35 g / mL, the tap density is more than 0.38 g / mL, and the HPLC purity is more than 99.2%.

The invention relates to a pharmaceutical composition containing an erigeron breviscapus extract and borneol. The pharmaceutical composition is prepared from the erigeron breviscapus extract and auxiliary materials thereof, wherein the erigeron breviscapus extract is a mixture of extracts of scutellarin and total caffeic acid ester; the auxiliary materials contain the borneol, a slow-release material, a filling agent, a binding agent, a lubricating agent and an accelerator sodium bicarbonate or potassium bicarbonate; the borneol can be used for remarkably improving the stability of the product; and after the filling agent and the accelerator are added, the medicine can be smoothly subjected to pH-dependent release, so that the pharmaceutical composition has better medicine applicability.

The invention relates to a degradable solid electrolyte membrane as well as a preparation method and a lithium battery prepared from same. The degradable solid electrolyte membrane comprises the following raw materials in parts by weight: 10-15 parts of modified starch, 5-10 parts of a polylactic acid-glycolic acid copolymer, 8-10 parts of polycaprolactone, 15-20 parts of polylactic acid, 10-15 parts of tetraethoxysilane, 5-10 parts of methyl methacrylate, 2-5 parts of a silane coupling agent, 3-5 parts of diphenylmethane diisocyanate, 5-10 parts of cellulose acetate propionate, 5-8 parts of dibutyl phthalate, 0.1-0.3 part of benzoyl peroxide and 8-10 parts of a lithium salt A. The degradable solid electrolyte membrane has excellent mechanical properties, high temperature resistance, goodtoughness and good electric conductivity, and is an electrolyte membrane with excellent properties.

The invention belongs to the field of refinement of a food additive-natural pigment, and particularly relates to a technique for producing deodorized cabbage red pigment by using a special deodorizing resin and supercritical technology. The technique comprises the following steps: (1) raw material pretreatment: selecting fresh red cabbages, cleaning, trimming and shredding; (2) extraction: extracting by using a water solution of phosphoric acid as an extractant; (3) precipitation: merging the extracts, and standing at low temperature to precipitate; (4) filtration: filtering by using a diatomite filter; (5) resin treatment: adsorbing by using 2# deodorizing macroporous resin; (6) concentration: concentrating by using a film evaporator until the color number reaches 20 or so, thereby obtaining liquid cabbage red pigment; (7) supercritical refinement and deodorization: carrying out supercritical refinement and deodorization to obtain liquid deodorized cabbage red pigment; and (8) spray drying: adding a carrier to regulate the solid content, and carrying out spray drying to obtain the powdery deodorized cabbage red pigment. The refined pigment has the advantages of no peculiar taste and high color number, does not precipitate when being dissolved in water, and is suitable for industrialization development.

The invention relates to the technical field of insect-resist agents. The invention relates to an insect repellent, in particular to a biological insect repellent and a preparation method and application thereof. The biological insect-resist agent is prepared from the following raw materials: cortex meliae, star anise, dry red peppers and fermentation strains; the fermentation strains comprise saccharomycetes, lactic acid bacteria, photosynthetic bacteria and actinomycetes. 100 kg of fermentation liquor needs following raw materials: 0.5-0.8 kg of cortex meliae, 0.5-0.8 kg of star anise, 0.5-0.8 kg of dry red peppers and 5-6 kg of EM.1 strains; according to the biological insect-resist agent, the raw materials are simple and easy to obtain, and after the biological insect-resist agent is sprayed to leaf surfaces, metabolism of plants can be enhanced, protective film cuticles of the leaves are strengthened, and pathogenic bacteria are prevented from entering the leaves; in addition, theleavening agent contains an ester component, which is not decomposed in the body of the herbivorous insect and generates physiological barrier damage and is lethal; therefore, due to the action of stimulating substances such as capsaicine, the insect can feel uncomfortable and escape from the body, the insect preventing and expelling effect is obvious, and the preparation process is simple, convenient to use, low in production cost and suitable for industrial development.

The invention discloses a roll type production device and method for an aerogel composite material, relates to a roll type production device for a composite material, and aims to solve the technical problems of complicated operation and poor environmental protection property of an existing compounding method for the aerogel composite material. The device comprises an uncoiling tank, a coiling tank, a sealing glove box, a first rotating motor, a first coupler, a second rotating motor and a second coupler; a first central rotating shaft is arranged in an uncoiling tank body in the uncoiling tank, and a first quick-opening cabin door is arranged on the side wall; a second central rotating shaft is arranged in a rolling tank body of the rolling tank, and a second quick-opening cabin door is arranged on the side wall; and the first quick-opening cabin door and the second quick-opening cabin door are wrapped in a rubber box body by the sealing glove box. The production method comprises the following steps that vacuum impregnation is performed on a fiber base material in the uncoiling tank, then the fiber base material is conveyed into the coiling tank for aging and drying, and the aerogel composite material is obtained. The device can effectively control solvent volatilization, avoids repeated hoisting, is easy to operate and environment-friendly, and can be used in the field of aerogel composite material production.

The invention discloses a prescription of red jujube soup enabling people to be comfortable, and relates to the field of health care and physiotherapy of foods. The prescription of the red jujube soup comprises the following formula ingredients in a compounding ratio: 9 grams of licorice roots, 10-75 grams of wheat, 10-60 grams of jujubes, 9 grams of apricot kernels, 9 grams of lily bulbs and 1000 grams of drinking water. The red jujube soup is stewed, and wheat jujube porridge paste and cooked juice are taken and can be separately or drunk at the same time. The red jujube soup has the effects of nourishing the heart, soothing the nerves, invigorating the spleen, replenishing qi, treating dysphoria of married women, treating the disease of being about to cry due to sadness, and treating absentmindedness, frequent yawning climacterium syndrome and the like, can eliminate or alleviate work and life stress of people, and enable people to calm and comfortable.

The invention discloses a method for preparing furfural through steam-assisted fixed bed pyrolysis of wood fiber biomass, and belongs to the technical field of biomass resource utilization. The methodincludes: carrying out pyrolysis on the wood fiber biomass loaded with the catalyst in a fixed bed reactor to obtain a pyrolysis product; with saturated steam as an extraction solvent, performing continuosu removal on the pyrolysis product to prepare furfural; wherein the catalyst is any one of H2SO4, H3PO4, SnCl4, CrCl3, InCl3, AlCl3, Al2(SO4)3, Fe2(SO4)3, CuSO4 or ZnCl2, the pyrolysis temperature is 100-400 DEG C, the steam temperature is 100-300 DEG C, the steam flow is 2.5-15 g / min, and the reaction time is 0.5-3 h. According to the method, catalytic pyrolysis conversion of the lignocellulosic biomass hemicellulose component is achieved through pyrolysis, continuous furfural removal is achieved through saturated steam extraction, and the furfural yield is increased.

The invention discloses desalinated soy sauce residues, and a method for removing salinity from soy sauce residues and recovering protein. The method for removing salinity from soy sauce residues andrecovering protein comprises the following steps of (1) adding the soy sauce residues to a diluting compartment of an electrodialyzer, adjusting pH to 4-6, adding water to a concentrating compartmentof the electrodialyzer, and adding a sodium sulphate solution to an electrode compartment of the electrodialyzer; and (2) starting the electrodialyzer for desalinating, wherein the desalinating voltage is 7-11V, the desalinating circulation flow rate is 2.1-3.5cm / s, and the desalinating time is 10-50min, after desalinating is completed, obtaining precipitate in the diluting compartment namely recovered protein, obtaining surplus desalinated soy sauce residues, and performing rotary evaporation on the solution in the concentrating compartment so as to obtain removed salt. Compared with a traditional soy sauce residue desalinating technology, the method has the advantages of being low in energy consumption, mild in reaction condition, simple in technology process, environmentally-friendly and the like, desalinating rate is increased by 50% than that by a traditional water-washing desalinating method, and the protein recovering rate is increased by 20%.

The invention discloses a preparation method of iced fresh black tea. The preparation method of the iced fresh black tea is characterized by comprising the following process steps: picking fresh tea leaves, carrying out withering, carrying out rolling, carrying out fermentation, carrying out vacuum packaging, and carrying out quick-freezing. The iced fresh black tea prepared by the preparation method disclosed by the invention is transported and consumed in wet state, compact, tender and uniform in appearance, copper-red and bright in color and luster, liable to produce mellow natural flower and fruit fragrance with sweet aroma when being brewed, and strong in perfume; and tea soup of the iced fresh black tea is free of sour or astringent taste, palatable, refreshing and capable of promoting secretion of saliva or body fluid. For long-time high-temperature drying is saved or only performed for a very short period of time, the iced fresh black tea mainly has flower and fruit fragrance compared with dries black tea which mainly has sweet aroma; moreover, relatively many nutrients are retained for the iced fresh black tea.

The invention discloses a method for preparing dialkyl azodicarbonic acid. The method comprises the steps of: mixing dimethyl azodicarbonic acid or diethyl azodicarbonic acid with sodium alkoxide solution, heating and reacting for 1-24h, and carrying out transesterification reaction between the dimethyl azodicarbonic acid or diethyl azodicarbonic acid and alcohol under the catalytic action of the sodium alkoxide; after the reaction is completed, regulating the pH value of the solution to 6-8, extracting an organic phase for 2-3 times with dichloromethane, combining the organic phases, drying for 8-12h with anhydrous sodium sulfate, and then performing reduced pressure distillation or recrystallization to obtain dialkyl azodicarbonic acid ROOCN=NCOOR, wherein R is alkyl containing 2-16 carbon atoms. According to the method, the dimethyl azodicarbonic acid or diethyl azodicarbonic acid is selected as raw materials, and is easily available; and the production cost is low, the economy is good, and pollution to the environment does not exist; the method for preparing the dialkyl azodicarbonic acid through esterification is simple to operate, short in process route, mild in reaction conditions, and high in yield, as well as suitable for industrialized development.

The invention provides an ibrutinib synthesis method and belongs to the field of medicine synthesis. The synthesis method includes the step that a compound M and a compound of formula I undergo acylation reaction in the presence of alkaline. The synthesis method is mild in reaction conditions, side reaction is less, obtained ibrutinib is high in yield, and the purity is 99.50 or above. A syntheticroute of the synthesis method is described as follows.

The invention discloses a method for preparing hydrogenated dialkyl azodicarbonic acid. The method comprises the steps of: mixing hydrogenated dimethyl azodicarbonic acid with sodium alkoxide solution, heating and reacting for 1-24h, and producing transesterification reaction between the dimethyl azodicarbonic acid and alcohol under the catalytic action of sodium alkoxide; after the reaction is completed, regulating the pH value of the solution to 3-8, extracting an organic phase for 2-3 times with dichloromethane, combining the organic phases, drying for 8-12h with anhydrous sodium sulfate, and then performing recrystallization to obtain the hydrogenated dialkyl azodicarbonic acid ROOCNHHNCOOR, wherein R is alkyl containing 2-16 carbon atoms. According to the method, the hydrogenated dimethyl azodicarbonic acid is used as raw material, and is green and environment-friendly, and easily available; the production cost is low, and the economy is good; the synthetic process of chloroformate ester in the traditional process can be ensured to be clean and environment-friendly, thereby meeting the green and chemical requirements; and the method for preparing the hydrogenated dialkyl azodicarbonic acid through esterification is simple to operate, short in process route, mild in reaction conditions, and high in yield, as well as suitable for industrialized development.

The method for preparing high molecular weight fatty polyester whose number-average molecular weight is 28000-40000 and weight-average molecular weight is 6000-13000 by adopting two-stage process is characterized by that it utilizes binary acid, dibasic alcohol and (or) hydroxy acid to make polycondensation reaction to prepare terminal hydroxyl polyester performed polymer, then adopts organic silicon azane compound as chain extender to make chain expansion reaction, the mole ratio of terminal hydroxyl polyester performed polymer and organic silicon azane chain extender is 1:0.8-2.0, and the Chain expansion reaction temp. is at 90-200 deg.C. It is simple in preparation process, non-toxic, high-effective, moderate in reaction condition, and suitable for industrial production.

The invention discloses a preparation method of an all-solid-state environment-friendly biopolymer electrolyte film, and relates to a preparation method for a lithium ion battery electrolyte thin film. The problems of low electric conductivity, high cost and poor environmental protection of a lithium ion battery electrolyte thin film prepared by conventional methods are solved. The method comprises the following steps: firstly, preparation of modified starch: taking a proper amount of starch, phthalic anhydride, pyridine and a solvent, under water bath conditions, blending and stirring until the solution becomes a uniform paste substance, then modifying starch with an isopropanol precipitate, next drying in a vacuum drying box, and finally grinding the obtained substance into a powder; andsecondly, preparation of the all-solid-state environment-friendly biopolymer electrolyte film: weighing cellulose, modified starch, a lithium salt and a solvent, blending and stirring, and then drying in the vacuum drying box to form the film. The prepared all-solid-state environment-friendly biopolymer electrolyte film has the advantages of good biodegradability, simple experimental process, wide sources of experimental raw materials, low cost and wide application range.