60results about How to "Fair price" patented technology

The invention discloses a preparation method of a coal gangue composite grouting material, which comprises the following steps: step 1, preparing coal gangue aggregate: drying crushed coal gangue, and screening to obtain the coal gangue aggregate consisting of fine aggregate and coarse aggregate; step 2, preparing a coal gangue gel material: uniformly mixing the crushed coal gangue with graphite, performing microwave activation, adding a chemical activator, mixing, and grinding to obtain the coal gangue gel material; and mixing the coal gangue gel material and the coal gangue aggregate, adding water, and uniformly stirring. According to the method, the technological process is simple and easy to implement, efficient utilization of mine solid waste is achieved, the mining cost is greatly reduced, the grouting filling material with the excellent mechanical property is successfully obtained, and progress and development of the coal gangue based grouting technology are powerfully promoted.

The invention discloses a phase change fiber membrane with a composite core-sheath structure and a preparation method and application thereof.The method comprises the steps that polyacrylonitrile is dissolved in N 'N-dimethylformamide and stirred to be completely dissolved, then hydroxylated boron nitride is added, the hydroxylated boron nitride is evenly dispersed through ultrasonic treatment, and a sheath spinning precursor solution is prepared; dissolving polyethylene glycol in N 'N-dimethylformamide, stirring to melt the polyethylene glycol, and taking the polyethylene glycol as a core layer spinning precursor solution; preparing a phase change fiber membrane with a core-sheath structure from the sheath spinning precursor solution and the core spinning precursor solution through a coaxial electrostatic spinning process; and placing the phase change fiber membrane with the core-sheath structure in an ethanol dispersion liquid of hydroxylated boron nitride, carrying out ultrasonic dip-coating, and then carrying out cold pressing treatment to prepare the phase change fiber membrane with the composite core-sheath structure. The obtained composite core-sheath structure phase change fiber membrane has good latent heat property, thermal conductivity and flexibility, and meanwhile, leakage of the phase change material is prevented through the core-sheath structure.

The invention relates to the technical crossing field of polyphenylene sulfide fiber paper, special papermaking and insulation paper, in particular to high-temperature-resistant polyphenylene sulfide fiber composite insulation paper and a preparation process thereof. The high-temperature-resistant polyphenylene sulfide fiber composite insulation paper with a dense structure similar to reinforcing steel bar-mortar is prepared by preferably selecting the polyphenylene sulfide fiber with higher cost performance as a raw material and taking the aramid fibrid as a filling agent and an adhesive and adopting a wet papermaking process. The prepared composite paper has excellent temperature resistance and chemical corrosion resistance, the production process flow is short, the production process is free of pollution, the industrial production cost of the composite paper can be reduced, the temperature resistance and chemical stability of medium-and-low-end application insulation paper are improved, the application field of the composite paper in a more severe environment is widened, and the composite paper has good application prospects. Good economic benefits and application values are realized.

The utility model provides a lithium battery slurry double-ball bidirectional pigging system, which relates to the technical field of pipeline cleaning of slurry conveying systems in the lithium battery industry, and comprises a sending station, a returning station, a feeding module, a conveying pipeline module and a buffer tank module, a buffer tank module is arranged on a passage of the conveying pipeline module in a matched mode, and the feeding module is located on the path of the conveying pipeline module close to the sending station. The pipeline cleaning device is suitable for lithium battery slurry conveying systems under various working conditions, is also suitable for pipeline cleaning systems with similar requirements in other industries, can effectively and efficiently clean a lithium battery slurry conveying pipeline, does not need to carry out ball releasing and ball collecting operation for a long time after a pipeline cleaning ball is placed in the pipeline cleaning device during working, and is simple in structure and convenient to use. Manual participation can be reduced to the greatest extent, and the ball pushing waiting time and the material supplementing waiting time can be effectively saved, so that the production capacity is optimized and improved.

The invention relates to a nickel-containing silicon-aluminum phase enhanced multi-component Fe-Si alloy and a preparation method thereof. The multi-component Fe-Si alloy comprises the following chemical components according to the atomic percent general formula: 18.8% of Fe, 3% of Si, 28.2% of Co, 28.2% of Cr, 18.8% of Ni, 2.9% of Al and 0.1% of B. The preparation method comprises the following steps: gold smelting and solution treatment: under the protection of argon, heating metal raw materials in a smelting furnace until the metal raw materials are molten for alloying, then under the protection of argon, heating a master alloy ingot until the master alloy ingot is completely molten, and carrying out suction casting molding; and under the argon protection environment, an alloy ingot obtained after suction casting is put into a muffle furnace to be subjected to heat preservation for solution treatment, and then thermal deformation, cold deformation and thermal treatment are conducted. The alloy has the advantages of excellent plasticity and good strength. Borides or boron-containing clusters can be dispersed and distributed at the grain boundary to strengthen a matrix, and the grain size can also be regulated and controlled by controlling precipitation and remelting of the borides or the boron-containing clusters.

The invention belongs to the technical field of well cementation engineering, and relates to a mud cake destroying type oil displacement flushing agent. The flushing agent is prepared from the following substances in percentage by mass: 8 to 12 percent of lauryl sodium sulfate, 4 to 6 percent of an emulsifier, 0.375 to 2.5 percent of an emulsifying aid, 7.5 to 12.5 percent of a dissolving aid, 6.5 to 8.5 percent of a mud cake breaking agent, 0.5 to 1.0 percent of glass fiber and the balance of water, the emulsifying agent is a mixture of Tween 80 and OP-20; the emulsifying auxiliary agent is polyether L62; the dissolving auxiliary agent is an alcohol; the mud cake breaking agent is a mixture of sodium hydroxide, ammonium persulfate and EDTA-2Na (Ethylene Diamine Tetraacetic Acid-2Na). Compared with the prior art, the mud cake destroying type oil displacement flushing agent has the advantages that the flushing efficiency is good, the corrosion efficiency is high, the raw materials are easy to obtain, the price is moderate, the effect of destroying a white oil-based drilling fluid mud cake is achieved, and the well cementation efficiency under the white oil-based drilling fluid environment can be improved.

The invention discloses a preparation method of an aluminum electrolytic capacitor, and relates to the technical field of capacitors. The method at least comprises the following steps: winding an anode foil, double-layer electrolytic paper and a cathode foil into a core package; carrying out impregnation treatment on the core package; and drying the impregnated core package and putting the core package into a shell to form the aluminum electrolytic capacitor. Wherein the double-layer electrolytic paper comprises a microporous layer and a base material layer, the microporous layer is arranged close to the anode foil, conductive graphite is adsorbed on the microporous layer, the raw material of the microporous layer is bamboo pulp fiber, and the raw material of the base material layer is bamboo pulp fiber and wood pulp fiber. The electrolytic paper of the aluminum electrolytic capacitor prepared by the invention comprises the microporous layer and the base material layer, and the conductive graphite is attached to the microporous layer, so that the high-voltage alternating current impact resistance and the cycle performance of the aluminum electrolytic capacitor are effectively improved.

The utility model discloses a total-factor surgery simulation visual suturing and knotting practice platform. The device comprises an operation table and a control table which highly simulate human tissues, the operating table comprises a simulated human tissue suturing model of which the two sides of an incision are respectively provided with a resistance strain sensor, a simulated blood vessel suturing and knotting model arranged in a blood vessel layer, and a blood pumping device communicated with the simulated human tissue suturing model through a catheter; the blood pumping device simulates the flow velocity and pressure of blood flowing in the liquid supplementing tank centrifugal pump and the simulated blood vessel suture knotting model through a liquid guide pipe; annular pressure sensors for detecting the tension of the blood vessel walls on the two sides during suturing are mounted in interlayers of the inner wall and the outer wall on the two sides of the incision of the sutured blood vessel in an embedded manner, and first annular resistance strain sensors for reflecting the knotting pressure of the blood vessel are mounted on the inner wall of the incision of the sutured blood vessel; a second annular resistance strain type sensor used for detecting the blood vessel ligation pressure value is arranged in an interlayer of the inner wall and the outer wall of the ligation blood vessel.

The present invention discloses a reservoir transformation fluid for tight oil reservoirs and a pressure-driven integrated production increase method, belonging to the technical field of oil and gas reservoir production increase. The method is for the purpose of pressure-driven integration, and the function of the fracturing fluid thickener is designed to prepare a pressure-driven integrated emulsion thickener with a special structure and special function; the product has entered the batch production stage, the raw materials are non-toxic and pollution-free, the price is moderate, the product performance is stable, and it has broad application prospects; in addition to integrating the functions of high-efficiency viscosity increase, low-viscosity drag reduction, high-viscosity elastic sand carrying, and low damage, the fracturing fluid also has an oil displacement function after gel breaking, which can well meet the construction requirements of tight oil reservoir pressure-driven integration; based on the research on tight oil reservoir reservoir transformation fluid, a tight oil reservoir pressure-driven integrated production increase method is proposed in a targeted manner, which simplifies the fracturing and oil displacement processes, shortens the operation time, saves construction costs, effectively improves the tight oil reservoir transformation effect, and increases the crude oil recovery rate.

The invention relates to a multi-principal-element alloy containing a second phase of a body-centered tetragonal structure and a preparation method of the multi-principal-element alloy, the multi-principal-element alloy comprises chemical components according to the atomic percent general formula of AlaCrbCocNid, a is greater than or equal to 14 and less than or equal to 16, b is greater than 24 and less than or equal to 26, c is equal to 17, d is greater than 42 and less than or equal to 44, and a + b + c + d is equal to 100. The method has the advantages that four components Al, Cr, Co and Ni are adopted, alloy burdening and smelting are conducted, and the multi-principal-component alloy is obtained through high-temperature heat treatment in a unique temperature interval and large-deformation room-temperature rolling. The prepared multi-principal-element alloy comprises a matrix of an L12 structure and a double-phase structure of a second phase of a body-centered tetragonal structure (BCT), and the second phase of the blocky BCT is large in size. The multi-principal-element alloy has high strength and good plasticity at the same time, the preparation process is simple, and safety is high.

The present invention provides a biostimulant composition for increasing the folate content of crops, including an aqueous solution of synthetic folic acid and L-potassium glutamate, wherein the molar concentration ratio of the synthetic folic acid to L-potassium glutamate is 1:3-5, and the solvent is an aqueous solution of potassium carbonate. The present invention also provides a preparation and use method of the biostimulant composition. Synthetic folic acid is used as the main body of plant biostimulants, and L-glutamic acid, one of the synthetic precursors of natural folic acid, is added to stimulate the main body of crops such as fruits and vegetables to increase the synthesis and storage of natural folic acid, thereby increasing the content of folic acid in crops and improving the quality of crops.

The application discloses an electrochemical granulation electrode deintercalation lithium extraction membrane stack electrolysis equipment, which comprises an electrolysis tank and an electrode assembly; the electrolysis tank comprises a first side plate, a piece of side plate rubber pad, a plurality of tank bodies, another piece of side plate rubber pad, a second side plate and a first tank body rubber pad, an anion membrane and a second tank body rubber pad arranged in sequence between two adjacent tank bodies; the tank bodies are divided into anode tanks and cathode tanks, the anode tanks and the cathode tanks are arranged alternately in an X direction from the first side plate to the second side plate, and the number of the anode tanks is equal to that of the cathode tanks; and an elastic porous pad is laid on the inner cavity bottom wall of the tank body. The electrolysis equipment can realize efficient extraction of lithium resources in salt lake brine, has the advantages of high lithium recovery rate and current efficiency, and is convenient to install, maintain and observe and monitor in the lithium extraction process.

The present invention discloses a heat pump system and method for regulating and utilizing waste heat from urban domestic waste landfills. The system includes: a circulation loop on the end-user side, a horizontal buried pipe circulation loop on the upper layer of the landfill, a vertical buried pipe circulation loop on the ground source side, a horizontal buried pipe circulation loop in the middle and lower layers of the landfill, and a heat supplement circulation loop. The present invention uses technical means to regulate the decomposition of organic matter in domestic waste, which has a very positive significance in terms of recycling and utilizing waste heat, methane and other available resources generated by the decomposition of organic matter, alleviating or solving the problem of winter efficiency attenuation of traditional ground source heat pumps, accelerating the stabilization of landfill settlement, and promoting the reclamation and reuse of land in the site.

The invention discloses preparation and application of an efficient organic-inorganic hybrid fireproof coating. The coating comprises the organic polyhydroxy flame-retardant copolymer and the inorganic flame-retardant smoke-suppression nano material, efficient improvement of the flame-retardant efficiency is achieved through biomass molecules containing hydroxyl and transition metal oxide, and balance of synergistic flame retardance and other properties is achieved. The fireproof coating provided by the invention has good mechanical strength (the shear strength is about 0.2 MPa) and excellent flame retardance, and can be used as an ideal flame-retardant material for rigid polyurethane foam.

The present invention relates to the field of organic synthesis, and in particular, to a method for preparing a malononitrile oxime ether compound. The malononitrile oxime ether compound has a structure shown in formula (VII), and W is selected from an aromatic group or a heteroaromatic group; the preparation method is as follows: a raw material (VI) reacts with a dehydrating agent at 0 to 40° C. in the presence of a solvent to obtain a malononitrile oxime ether compound shown in formula (VII). The above-mentioned preparation method is beneficial to improving the yield of malononitrile oxime ether and reducing the process cost.

The invention provides an all-fiber white light laser for laser display. The all-fiber white light laser comprises a blue light pumping source; the blue light pumping source is connected with the resonant cavity assembly through the multimode tail fiber; a gain optical fiber is arranged in the resonant cavity assembly; after the pumping blue light excites the gain optical fiber, red laser and green laser are generated at the same time, and the red laser and the green laser are synthesized into white laser in the multimode output optical fiber with the residual pumping blue light. According to the white light fiber laser, an all-fiber structure is achieved, mixed white light of RGB three primary colors is obtained through a single gain fiber, and the white light fiber laser has the advantages of being high in conversion efficiency, simple in structure, easy to miniaturize and the like.

The present invention relates to the technical field of metal surface treatment, and in particular to a cutting fluid for aluminum alloy and a preparation method thereof. The cutting fluid for aluminum alloy is composed of the following raw materials in weight percentage: 20-25wt% of plant base oil, 10-14wt% of pH buffer, 4-6wt% of lubricant, 2-4wt% of rust inhibitor, 2-3wt% of coupling agent, 0.5-1.0wt% of defoamer, 0.8-1.5wt% of corrosion inhibitor, 6-10wt% of emulsifier, 1-3wt% of antibacterial agent, and the balance is deionized water; the antibacterial agent is an organic guanidine compound and a fluorine-containing baicalein sulfonylated derivative. The organic guanidine compound of the present invention has a bactericidal mechanism: the functional groups of the organic guanidine polymer molecules are positively charged, while bacteria and virus cells in water mostly carry negative charges. After being adsorbed on the surface of microorganisms, the organic guanidine inhibits the division of bacteria and viruses, causing them to lose their reproductive ability, thereby playing an inhibitory and bactericidal role; and the fluorine-containing baicalein sulfonylated derivative has a special binding site with Pseudomonas alcaligenes, thereby having a good inhibitory and killing effect on it.

The utility model relates to a concentrating solar thermoelectric power generation tent, which comprises a plurality of concentrating solar thermoelectric power generation devices, an exhaust fan, a tent main body, an automatic temperature-regulating pressure-sensitive heating pad, a storage battery and a plurality of leads, according to the utility model, solar heat is collected and utilized by a semiconductor thermoelectric power generation method, can be used for various electric appliances or emergency power, and can be supplied to an energy-saving heating pad in the tent to improve the thermal environment. According to the utility model, the condensing lens gathers light on the heat collecting body to increase the temperature of the heat collecting body, the heat collecting body is used as a hot end, the flat heat pipe is used as a cold end of the thermoelectric generator, and meanwhile, an exhaust fan is additionally arranged on the tent and is combined with a windowing design, so that the condensing solar thermoelectric power generation tent is manufactured; the purposes of saving energy, protecting the environment, meeting the electricity demand of people and improving the thermal comfort are achieved.

The invention discloses a method for preparing a lithium ion battery negative electrode material from high-sulfur coke, which comprises the following steps of: firstly, coarsely crushing the high-sulfur coke, mixing the high-sulfur coke with reducing metal powder, and performing low-temperature calcination in a methane atmosphere to perform desulfurization reaction; then demagnetizing, crushing, grading and graphitizing the calcined reaction product; and finally, fusing the graphitized product by using a modifier, and carbonizing to obtain the lithium ion battery negative electrode material prepared from the high-sulfur coke. According to the method, the desulfurization rate of the petroleum coke can be effectively improved, the sulfur content in the high-sulfur petroleum coke can be remarkably reduced, and defects caused by removal of organic components in the raw material coke can be repaired to a certain extent, so that a more regular graphite layered structure can be obtained through a graphitization process; the material is modified and coated by adopting a fusion process, and better coating uniformity is provided for the product, so that the lithium ion battery negative electrode material obtained after the precursor D is fused and modified has excellent electrochemical performance.

The present invention relates to the technical field of aqueous zinc ion batteries, and in particular to a high-rate aqueous zinc ion battery electrolyte and a preparation method thereof, wherein the electrolyte comprises a deionized water solvent, a zinc salt and an electrolyte additive. The additive in the present invention contains cations with a larger ionic radius and anions that can participate in the solvation process of zinc ions. Such cations can be gathered at the dendrite tip during zinc deposition, thereby inhibiting dendrite growth and the irreversible hydrogen evolution reaction of hydrated zinc ions, and improving the reversibility of zinc ion deposition. At the same time, the anions and hydrated zinc ions have higher adsorption energy, and can be used as better leaving groups in zinc ion deposition, thereby reducing the reaction energy barrier of hydrated zinc ions dehydration, reducing zinc nucleation sites, assisting zinc ions in uniform deposition, and overall improving the rate performance and cycle life of aqueous zinc ion batteries.

The invention discloses a dynamic wear monitoring and early warning device and method for a supporting and guiding system of a coal mining machine. A plurality of sensors (dynamic wear monitoring devices) which are distributed dispersedly are adopted to dynamically monitor the wear condition of key parts of the supporting and guiding system of the coal mining machine, different position structures of a guiding sliding shoe and a smooth sliding shoe are fully utilized, a reasonable space is partitioned and created, sensor configuration points are optimized, and effective protection is implemented. Besides, a dynamic wear early warning device is adopted to carry out centralized management and control on wear conditions of key parts of the coal mining machine supporting and guiding system, so that four-point supporting of the coal mining machine supporting and guiding system and different optimized sensor configuration points of a guiding sliding shoe and a smooth shoe with dispersed structures are facilitated; the sensor configuration points are gathered together in a shortcut, economical and reasonable mode, centralized management and control are carried out on the sensor configuration points, control precision can be improved conveniently, measurement errors are reduced, and cost is reduced.

The present invention relates to the field of waste gas treatment technology, and in particular to an industrial waste gas treatment process. The treatment process uses a collector to capture sulfur-containing particles in industrial waste gas, the collector is filled in a capture tower to control the introduction speed of industrial waste gas, and the collector is composed of alkali-modified CHA type molecular sieve, alumina, and methyl cellulose. The collector composed of alkali-modified CHA type molecular sieve, alumina, and methyl cellulose provided by the present invention can adapt to complex and harsh working conditions in industrial tail gas purification treatment, and is very suitable for the purification of sulfur-containing components in industrial tail gas.

This invention discloses a method for rapid quantitative analysis of methamphetamine based on portable near-infrared spectroscopy and PLS modeling, characterized by: (1) collecting near-infrared diffuse reflectance spectra of methamphetamine crystals and tablets using a portable near-infrared analyzer, and preprocessing the spectral data using the S-G method; (2) performing data analysis and modeling based on the PLS method to obtain a PLS regression model; (3) detecting the sample to be tested: collecting the near-infrared diffuse reflectance spectra of the sample to be tested, and then obtaining the methamphetamine content in the sample to be tested according to the model in step (2).

The invention relates to the technical field of daily necessities preparation, and in particular to a goat milk handmade soap and a preparation process thereof. The goat milk handmade soap is composed of rapeseed extract, coconut oil, strong alkali, goat milk extract, surfactant, stabilizer, emollient, anhydrous ethanol, glycerin, 10% sucrose solution, and deionized water. The present invention can synergistically play the effect of repelling and inhibiting mites by adding rapeseed extract and goat milk extract; secondly, the present invention contains coconut oil and myristyl myristate, which has a better emollient effect and can effectively offset the damage of surfactant to the skin.

This invention relates to the field of metal surface treatment technology, and more particularly to an aluminum alloy with a surface loaded with bio-based antibacterial components and its preparation method. The aluminum alloy is prepared by the following steps: anodizing the treated aluminum alloy to obtain an aluminum alloy with a nanotube pore structure; immersing the obtained nanotube pore structure anodic aluminum layer in a silane coupling agent solution for activation treatment to obtain a surface-activated aluminum alloy; immersing the surface-activated aluminum alloy in an epoxy resin solution containing antibacterial components and allowing it to stand for 10–12 hours, then removing the aluminum alloy and curing it at 70–75°C for 2–3 hours to obtain the aluminum alloy. The aluminum alloy prepared by this invention simultaneously loads two antibacterial components, palmatine and magnolol, onto the anodic oxide film layer, which synergistically produce a better inhibitory effect on fungi and bacteria.

The present invention belongs to the technical field of polymer films, and specifically relates to a biodegradable wrapping film and a preparation method thereof. The biodegradable wrapping film comprises the following components: 70-85 parts of PBAT, 10-30 parts of polylactic acid, 5-10 parts of polypropylene carbonate, 10-15 parts of toughening agent, 5-15 parts of plasticizer, 1-2 parts of light stabilizer, and 0.1-0.3 parts of antioxidant; wherein the toughening agent is prepared by reacting phenylalanine, tyrosine and gum arabic. The preparation method is to prepare the toughening agent in advance; stir PBAT, polylactic acid, polypropylene carbonate, plasticizer and antioxidant once, continue to add toughening agent and light stabilizer for secondary stirring, and then prepare the biodegradable wrapping film by extrusion granulation and cast film. The present invention improves the stretchability and tensile strength of the biodegradable wrapping film based on PBAT by adding a homemade toughening agent, and at the same time, by granulation and one-time cast extrusion film making, the preparation method is simple to operate, low cost, and suitable for large-scale production.

The invention discloses application of glycyrrhizic acid in preparation of a medicine for relieving toxic and side effects of osimertinib. In an in-vitro HaCaT cell strain, glycyrrhizic acid can significantly improve the survival rate of keratinocytes under the action of osimertinib, reduce the apoptosis rate, reduce the expression level of Cleved PARP and a DNA damage marker gamma-H2A. X protein of the cells, and reduce the transcriptional level of inflammation-related factors CCL2, CCL27, IL18, TNF alpha and IL6. In an osimertinib-induced mouse skin toxicity model, glycyrrhizic acid can significantly improve skin unhairing and rash symptoms, recover the expression level of Ki67 and improve proliferation disorder caused by osimertinib; the osimertinib can obviously reduce the number of green fluorescent cells in epidermal tissues, recover the thickness of mouse epidermis, improve the phenomenon of epidermis damage, effectively relieve the toxic and side effects of osimertinib, obviously improve rash, unhairing and inflammatory response caused by osimertinib and improve the safety of osimertinib.

The application discloses a kind of dynamic wear monitoring and early warning device and method of coal winning machine support guiding system, which uses several sensors (dynamic wear monitoring device) arranged dispersedly to dynamically monitor the wear condition of key parts of coal winning machine support guiding system, makes full use of the different position structures of guiding shoe and smooth shoe, creates reasonable space by segmentation, optimizes sensor configuration point, and implements effective protection.In addition, the application also uses dynamic wear early warning device to centrally control the wear condition of key parts of coal winning machine support guiding system, which is beneficial to gather the four-point support of coal winning machine support guiding system, the different optimized sensor configuration points of structure dispersed guiding shoe and smooth shoe in the most shortcut, economical and reasonable way, and implement centralized control of each sensor configuration point, which is convenient to improve control accuracy, reduce measurement error and reduce cost.

The invention discloses a reusable multi-bag desalted water filter which comprises a stainless steel shell, a gland arranged at the top of the stainless steel shell, a water inlet and a water outlet which are formed in the stainless steel shell, a discharge port formed in the bottom of the stainless steel shell, and a pressure gauge interface and an exhaust port which are formed in the gland, the water inlet and the water outlet are formed in the upper side and the lower side of the stainless steel shell respectively, the stainless steel shell is provided with a detachable connecting mechanism, at least one filter bag is arranged on the connecting mechanism, and water entering from the water inlet is filtered through the filter bag and then discharged outwards. The effects of low pollution, simplicity in operation, low cleaning water consumption and reusability can be achieved, and the method is the sustainable development direction of the current water treatment process.

The invention relates to a TPU / PVC (thermoplastic polyurethane / polyvinyl chloride) modified film as well as a preparation method and application thereof. The TPU / PVC modified film comprises the following components in parts by mass: 50-75 parts of polyether type TPU; 25 to 50 parts by mass of PVC resin; 20-35 parts by mass of a plasticizer; 1-2 parts by mass of a composite calcium-zinc stabilizer; 0.4 to 0.6 part by mass of an anti-ultraviolet light absorber; 0.2 to 0.5 part by mass of a composite antioxidant; 0-0.2 part by mass of a lubricant; in the preparation process, the PVC and the TPU are fused; a structure with TPU as a continuous phase and plasticized PVC as a dispersed phase is formed. The TPU / PVC modified space composite material is of a sandwich structure and comprises a surface layer, a bottom layer and a middle layer, wherein the surface layer and the bottom layer are TPU / PVC modified films, and the middle layer is space mesh cloth. Compared with the prior art, the TPU / PVC modified space composite material has the advantages of light smell, good flexibility, low temperature resistance, weather resistance and hydrolysis resistance.