363results about How to "Prevent precipitation" patented technology

The utility model relates to a secondary ink cartridge assembly for a printer, which comprises a secondary ink cartridge body, the secondary ink cartridge body comprises an ink cartridge body and an ink cartridge cover which are mutually sealed and covered, a high-pressure ink cavity, a low-pressure ink cavity and a normal-pressure ink cavity are arranged in the ink cartridge body, and the high-pressure ink cavity, the low-pressure ink cavity and the normal-pressure ink cavity are respectively provided with a liquid level sensor. The high-pressure ink cavity is sequentially communicated with the printing spray head, the low-pressure ink cavity, the normal-pressure ink cavity, the second ink pump, the bubble removing device and the first ink pump, so that ink flows out of the high-pressure ink cavity, sequentially flows through the printing spray head, the low-pressure ink cavity, the second ink pump, the normal-pressure ink cavity, the first ink pump and the bubble removing device and then flows back into the high-pressure ink cavity, and therefore a self-circulation ink path is formed. According to the secondary ink box, ink between the secondary ink box body and the printing spray head keeps continuous circulating flow, precipitation is avoided, the temperature of the ink entering the printing spray head is appropriate and constant, the bubble content is small, the pressure fluctuation is small, and therefore the printing quality is higher, and the printing effect is better.

This application belongs to the technical field of air compressor safety, and particularly relates to a safety operation method for a piston air compressor. A safety operation method for a piston air compressor includes the following steps: S1, a flexible baffle is provided on an air-cooled plate cooler connected to the piston air compressor; S2, temperature data of each cooling unit at the current moment is obtained, and at the same time, the temperature change trend and the opening area change trend of the air outlet end of each cooling unit are obtained; S3, according to the pressure dew point temperature of the air outlet end of each cooling unit at the current moment, the opening area of each cooling unit at the current moment is adjusted to change the coverage degree of the flexible baffle on the air-cooled flow channels of each cooling unit at the next moment, so that the temperature of the air outlet end of each cooling unit is always above the corresponding pressure dew point temperature. This application can尽量避免活塞式空压机在运行的过程中发生冰堵或油乳化,保证活塞式空压机的安全运行。 It should be noted that there is an unclear part in the original Chinese text "尽量避免活塞式空压机在运行的过程中发生冰堵或油乳化,保证活塞式空压机的安全运行。" which may need to be further clarified for a more accurate translation. The above translation is based on the best understanding of the current text.

The invention discloses a catechol side group-containing polylysine derivative as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) dissolving catechol acid in an organic phase, firstly adding NHS, stirring and dissolving until the materials are uniformly mixed, then adding EDC.HCl, and stirring and reacting to obtain a catechol-NHS intermediate solution; (2) dissolving polylysine or a salt thereof in a water phase, and adjusting the pH value to 6.0-7.0 by using an alkaline solution to obtain a solution of polylysine or a salt thereof; and (3) adding the intermediate solution obtained in the step (1) into the polylysine or the salt solution thereof obtained in the step (2), and maintaining the pH value of the reaction system at 5.0-6.0 by using an alkaline solution to obtain the catechol side group-containing polylysine derivative. The preparation method is short in reaction time and mild in reaction condition, and the obtained product is high in grafting rate and high in raw material conversion rate and has a good application prospect in the aspects of tissue adhesives and the like.

The utility model belongs to the technical field of lubricating oil additive filling, and particularly relates to a lubricating oil additive finished product filling device which comprises a base, supporting legs are arranged at the four corners of the bottom of the base, a filling mechanism is installed on the top of the base, and the rear end of the filling mechanism is communicated with a stirring mechanism. And a conveying mechanism is arranged below the filling mechanism. According to the filling mechanism disclosed by the utility model, the lubricating oil additive can be quickly filled through the cooperative operation of the liquid pump, the hose, the connecting pipe and the filling head. The electric telescopic rod can adjust the height of the filling head to adapt to filling containers of different specifications, and the universality of the equipment is improved; the electromagnetic valve can accurately control opening and closing of each filling head, and the accuracy of the filling amount is ensured.

The invention discloses uniform mixing equipment for preparing antiviral oral liquid, and belongs to the technical field of pharmaceutical preparation production, the uniform mixing equipment comprises a mixing part, the mixing part comprises a mixing equipment main body, a stirring assembly for mixing liquid medicine is arranged in the mixing equipment main body, and a first sliding groove and a plurality of teeth are arranged in the mixing equipment main body; a buffer thin-wall layer for slowly conducting heat is arranged on the stirring assembly; the cooling part comprises a liquid conveying assembly and a cooling assembly which are arranged in the stirring assembly and is used for uniformly conveying a solvent and cooling a medicament in the mixing process, and through the collaborative design of rotation of a main stirring paddle and synchronous liquid spraying of a liquid outlet, purified water is uniformly dispersed to all positions of an inner cavity of the mixing tank body in the stirring process; the problems that local liquid medicine is too thick and is slowly dispersed due to traditional top single-point water adding are solved, the raw materials and the solvent can be rapidly and evenly mixed without long-time stirring, the mixing period is greatly shortened, and meanwhile heat accumulation generated by long-time stirring is reduced.

The utility model discloses a kind of repair equipment for soil pollution control, it is related to soil pollution control technical field.It includes drive bottom plate, medicine storage shell and water spraying shell, the top of damper is provided with guide frame, the output of second motor is provided with threaded shaft, the inside thread of water spraying shell is provided with threaded rod, the bottom end of threaded rod is rotatably provided with protective frame.In the utility model, by being provided with damper, threaded shaft and the components such as protective frame, protection can be carried out to water spraying shell using damper to dampen and consume energy, the rotation of threaded shaft can drive guide frame to move up and down, so as to be convenient for adjusting the use height of water spraying shell according to use requirement, when threaded rod rotates, the use position of protective frame can be adjusted, using protective frame can shade wind to space below water spraying shell, avoid liquid sprayed by water spraying shell to be blown away with wind when wind speed is relatively large, make repair liquid spray to specified position, effectively reduce the waste of repair medicine water.

The invention discloses printing equipment for RFID antenna production, which comprises a printing table and a printing unit, a pressing mechanism is arranged on the top surface of the printing table, the pressing mechanism is used for pressing an RFID antenna base material and a template on the top surface of the printing table, the printing unit is arranged on the top surface of the printing table, and the printing unit comprises a scraping printing assembly and an adjusting assembly. The printing unit comprises a scraping and printing assembly and an adjusting assembly, the scraping and printing assembly is used for scraping and printing conductive ink on a template and an RFID antenna base material, the adjusting assembly is used for adjusting the scraping and printing assembly so as to scrape and print the RFID antenna base material and the template with different thicknesses, and the gathering unit is arranged on the outer side of the printing unit and used for gathering the diffused conductive ink. The gathering unit is arranged on the printing unit to ensure that the printing unit performs uniform scraping printing on the RFID antenna base material and the template, and the mixing unit is arranged on the outer side of the gathering unit and is used for mixing the stored conductive ink in real time.

The application discloses a compound fertilizer for promoting cotton high yield and a preparation method thereof, relates to the technical field of cotton fertilizer, and comprises first mother liquor A, second mother liquor B and third mother liquor C which are prepared, stored and packaged separately; the first mother liquor A contains urea phosphate, monoammonium phosphate, anhydrous citric acid, malic acid and manganese sulfate monohydrate; the second mother liquor B contains commercial 11-37-0 liquid ammonium polyphosphate, ammonium salt type polyaspartic acid solution, purified fulvic acid clear liquid and tri-potassium citrate; and the third mother liquor C is a mixed system of polyol complex state boron clear pre-liquid and medium complex state zinc pre-liquid. The application can improve the effective state stability of phosphorus, zinc and boron, reduce the risks of precipitation fouling and dripping head blockage, alleviate the risks of local salt peak and root injury in the seedling stage, promote the uniform emergence and young root growth of cotton, and improve the yield.

The invention belongs to the technical field of strawberry planting, and discloses a strawberry elevated planting water and fertilizer integrated device which comprises a control box, a gravel filter is installed on the rear side of the control box, the gravel filter is fixedly communicated with a laminated filter, and through cooperation of structures such as an outer pipe, an inner pipe, a spiral groove and an inclined hole, a double-layer drip irrigation pipeline is utilized, and the water and fertilizer integrated device is formed. By rotating the adjusting inner pipe, the drip irrigation point position can be adjusted, long-time drip irrigation at the same point position is avoided, each strawberry plant can uniformly receive fertilizer irrigation, the drip irrigation density can be adjusted, the drip irrigation rate can be adjusted in cooperation with a machine body, the device effectively adapts to the plant growth condition, constant-speed and accurate drip irrigation is achieved, it is ensured that the plant growth environment is basically consistent, and the quality is improved; the double-layer pipeline of the outer pipe and the inner pipe is adopted for drip irrigation, compared with a traditional mode that two single-layer pipes are used, the number of branches is reduced, the water pressure needed by a single planting box can be effectively reduced, more production lines can be increased, and therefore the strawberry planting yield is increased.

The invention discloses a novel antifreeze polypeptide with a clear structure and excellent performance and a protection method of cryopreserved cells. The core structure of the polypeptide is formed by covalently connecting two functional modules, the N end is a unit with ice crystal binding performance, the C end is a super-hydrophilic unit, and the two functional modules are bridged through a flexible linker. Experimental verification shows that the synthetic polypeptide shows excellent anti-freezing activity, can significantly inhibit nucleation, growth and recrystallization processes of ice crystals, and has particularly outstanding ice recrystallization inhibition activity. The novel antifreeze polypeptide shows excellent biocompatibility, and is suitable for low-temperature cryopreservation of cells sensitive to freezing damage and other living microbial preparations. Results show that the polypeptide can greatly improve the freeze-drying survival rate of cells and the activity of the cells after recovery, is non-toxic to the cells, and shows the potential of replacing a traditional cryoprotectant. Therefore, the method has wide application prospects in food industry, biological medicine, agricultural breeding and low-temperature preservation technologies of biological sample libraries.

The water-based paint stirring and subpackaging device comprises a subpackaging support and a material bearing barrel, a barrel cover is movably arranged at the top of the material bearing barrel, a motor is fixedly arranged at the top of the barrel cover, an output shaft of the motor penetrates through the barrel cover and is fixedly connected with the top of a mounting plate, a second groove is formed in the mounting plate, and a first groove is formed in the second groove. A threaded rod is movably arranged in the second groove, one end of the threaded rod penetrates through one side of the mounting plate and extends out of the mounting plate, a rotating handle is fixedly arranged at one end of the threaded rod, a nut seat is movably arranged outside the threaded rod, and movable plates are fixedly arranged at the top and the bottom of the nut seat correspondingly; an inserting plate is fixedly arranged on one side of the movable plate, the inserting plate is inserted into an inserting groove of a stirring rod, a stirring blade is fixedly arranged outside the stirring rod, and a scraping plate is fixedly arranged at the other end of the stirring blade.

This invention relates to the field of surfactant technology and discloses a biodegradable amphoteric surfactant and its preparation process. The process involves reacting a diol compound and a diacyl chloride compound, followed by a reaction with 1,3-propanesulfonate lactone to obtain the biodegradable amphoteric surfactant. Both the main chain and side chains of this surfactant contain a large number of biodegradable ester groups, exhibiting a high biodegradability rate and making it environmentally friendly. The side chains of this surfactant contain a large number of amphoteric betaine ion groups, among which a large number of sulfonic acid anions have strong coordination and complexation effects with iron ions. After complexation, the concentration of iron ions in the solution is significantly reduced, making it suitable as a complexing agent for better application in the iron complexation desulfurization process. Complexing iron ions can prevent iron ion precipitation, thus maintaining the good oxidizing properties of iron ions and reducing hydrogen sulfide to sulfur.

The utility model relates to the technical field of ballast liquid preparation, in particular to a ballast liquid preparation device which comprises a preparation cylinder, a guide assembly is arranged at the top of the preparation cylinder, and a stirring assembly is arranged at the bottom of the preparation cylinder. One end of the draw-off pump is communicated with the bottom of the preparation cylinder through the draw-off pipe, and the other end of the draw-off pump is communicated with the outside through the discharge pipe, so that the added materials can be conveniently and quickly mixed with water, the prepared ballast liquid can be conveniently pumped out after the draw-off pump is started, the operation of workers is facilitated, and the working efficiency is improved; through cooperative use of a sealing cover, a stirring motor, a rotating rod, stirring blades, a temperature sensor and a sealing ring, the stirring blades stir materials, the temperature sensor monitors the temperature in the preparation cylinder in real time, internal ballast liquid precipitation is avoided, meanwhile, fusion acceleration is facilitated, the structure is simple, and operation is convenient.

The application discloses a kind of based on flavoromics's sun vinegar aging period flavor dynamic change analysis method, it is related to flavoromics technical field, to solve the current concentration rainstorm causes the temperature and humidity gradient of inner and outer wall of pottery jar to increase dramatically, causes the technical problem that pottery jar astringency is generated, including the following steps: S100, real-time monitoring and risk assessment of heat and humidity stress;S200, rainstorm event fusion early warning;S300, dynamic deduction and strategy optimization based on digital twinning;S400, dynamic microenvironment blocking control execution;S500, closed-loop feedback based on proxy index;S600, post-evaluation and model optimization.The application realizes early quantitative perception to astringency risk by real-time monitoring and calculating heat and humidity stress index representing ion precipitation driving force, combined with the research and judgment model of early warning confidence of fusion meteorological forecast and real-time data, starts the blocking control system, carries out physical intervention to pottery jar, guarantees the quality stability of sun vinegar in rainy season.

The utility model discloses a medicament uniform soaking device for medical antiviral non-woven fabric production, and relates to the technical field of antiviral non-woven fabric production. The medicine uniform soaking device for medical antiviral non-woven fabric production comprises a bottom plate, a drying mechanism used for drying non-woven fabric and a water control mechanism used for removing redundant medicine are installed above the bottom plate, the drying mechanism comprises a flat pipe fixedly installed above the bottom plate, an electric heating plate is fixedly installed in the flat pipe, and the electric heating plate is fixedly connected with the bottom plate. The inner temperature of the tubular structure at the front end is increased through the electric heating plate, the non-woven fabric is dried, high-humidity air in the flat pipe can be pumped out through the air inlet pipe during operation of the air compressor, the situation that the drying efficiency is affected due to the fact that the humidity of the air in the flat pipe is too high is prevented, and the non-woven fabric can be dried after being soaked in the mode; therefore, the situation that in the rolling process, medicine is separated out due to the pressure between the non-woven fabrics in the rolling process is avoided.

This utility model relates to the field of capacitor electrolyte treatment technology and discloses a capacitor electrolyte purification and impurity removal device, including a storage tank for storing capacitor electrolyte, a flexible tube connected to the bottom of the storage tank, a tank body fixed to one side of the storage tank, and a tank cover connected to the top of the tank body by bolts; a stirring assembly for stirring the electrolyte is provided on the top of the storage tank; a filter screen is provided inside the tank body for removing impurities from the electrolyte. By setting the stirring assembly on the top of the storage tank, the rotating shaft is driven by a motor to drive the stirring blades to fully stir the electrolyte, effectively preventing the electrolyte from settling or separating, thereby improving the uniformity of the electrolyte. By setting the filter screen inside the tank body, after the electrolyte enters the tank body, it passes through the filter screen for impurity removal. Impurities are trapped on the filter screen, and the clean electrolyte is discharged through the outlet pipe, effectively removing solid impurities from the electrolyte and improving the purity of the electrolyte.

The utility model relates to the field of blue-green algae treatment equipment, in particular to a blue-green algae collecting and flocculating device which comprises a barrel body, a flocculating agent leading-in assembly, a water pump assembly, an electric box, a first guide pipe, a second guide pipe, a blue-green algae collector, an insertion column, a ladder, a waste algae discharge pipe and a purified water discharge pipe, the flocculating agent collecting assembly with the flowmeter and the pressure controller is arranged, the dosage of a flocculating agent can be accurately controlled according to different flocculation requirements, and the flocculating agent can be uniformly guided into the barrel, so that the flocculation effect is better, and the flocculating agent is not easily wasted; according to the blue-green algae absorption device, blue-green algae can be intensively collected together through pressure in the blue-green algae absorption process and then guided into the flocculation device, absorption can be more thorough, part of blue-green algae is prevented from being precipitated or dispersed in the absorption process, and the treatment effect is better.

The invention relates to a preparation method of peppermint essence, which solves the problems of quick volatilization and poor durability of the traditional peppermint essence by optimizing the combination of essence components and a slow-release carrier by adopting a multi-layer microcapsule slow-release technology and a nanocapsule technology. According to the method, essence components such as menthol, menthone and leaf isovalerate are mixed with at least two layers of microcapsules, the outer layer microcapsules slowly release fragrance, the inner layer microcapsules quickly release fragrance, and it is ensured that the fragrance is kept for a long time in the using process. Meanwhile, the essence is uniformly dispersed in different carrier systems through ultrasonic-assisted emulsification by adopting a nanocapsule technology, so that the stability and dispersity of the essence are improved. In addition, the temperature-responsive and pH-responsive polymer materials are introduced, so that the release rate of the essence can be adjusted according to the external environment, and the adaptability of the essence is further enhanced.

The utility model discloses an all-directional spraying device for a microelement fertilizer for commercial crops, which relates to the technical field of fertilizer spraying and comprises a fertilizer liquid box and a storage battery. Straps are fixed to the two ends of the left side face of the fertilizer liquid box, a liquid inlet pipe is arranged on the top face of the fertilizer liquid box, a liquid pump is placed on the bottom face in the fertilizer liquid box, a liquid outlet of the liquid pump is connected with one end of a liquid conveying pipe, the other end of the liquid conveying pipe is connected with a liquid inlet of an atomization spray head, and an adjusting unit is arranged on the side face of the fertilizer liquid box. An atomizing nozzle is mounted in the adjusting unit, and the storage battery is fixed on the bottom surface of the fertilizer liquid box; according to the omni-directional spraying device for the microelement fertilizer of the commercial crops, three-dimensional omni-directional uniform spraying is achieved through the atomizing nozzles with the adjustable height, and the omni-directional spraying device is suitable for different crop plant types; intelligent liquid level monitoring and material mixing and stirring functions are provided, so that the fertilizer concentration stability is ensured, and liquid interruption is avoided.

The invention relates to the technical field of composite materials, in particular to a synergistic flame-retardant epoxy resin-based porous sound insulation composite material and application thereof. The raw materials comprise 100 parts of bisphenol A epoxy resin, 15 parts of an aliphatic amine curing agent, 12 parts of ammonium dihydrogen phosphate, 6 parts of melamine, 4 parts of nano silicon dioxide, 5 parts of sodium chloride, 2 parts of ammonium bicarbonate, 0.8 part of carbon nanotubes and 0.5 part of a silane coupling agent. The synergistic flame-retardant epoxy resin-based porous sound-insulation composite material provided by the invention effectively solves the technical bottleneck that the flame-retardant, sound-insulation and mechanical properties of an epoxy resin-based material in the prior art are difficult to synergistically improve, and has remarkable beneficial effects in multiple aspects.

The utility model discloses water quality aeration purification equipment suitable for high ammonia nitrogen fishpond culture wastewater, which comprises a device body, a protection box is arranged in the device body, a base is arranged below the protection box, a suction pump is arranged in the protection box, a mounting rack is connected below the base, and the mounting rack is provided with a water inlet. A first water tank, a second water tank and a third water tank are sequentially connected to the lower portion of the mounting frame, the front end of the suction pump is connected with a water pumping pipe, the rear end of the suction pump is connected with a water inlet pipe, a first placing table and a second placing table are connected to the outer wall of the protection box, a first pesticide box is arranged above the second placing table, and a second pesticide box is arranged above the first placing table. According to the device, the content of dissolved oxygen in wastewater can be increased, a proper aerobic environment is provided for subsequent biological treatment, the concentration of ammonia nitrogen in the wastewater is reduced, the water quality of a fishpond is improved, precipitation of sludge and formation of an anaerobic environment are avoided, and subsequent stable operation of the device is ensured.

The utility model relates to the technical field of solvent pigment conveying equipment, and discloses a solvent pigment closed conveying device which comprises a conveying bin, a storage bin is arranged above the conveying bin, the same functional box is fixedly installed on the left side of the storage bin and the left side of the conveying bin, and a motor is fixedly installed on the inner wall of the left side of the functional box; a conveying mechanism is arranged between the motor and the conveying bin; a same discharging pipe is arranged between the storage bin and the conveying bin, an electromagnetic valve is arranged on the discharging pipe, a first partition plate is fixedly installed on the inner wall of the storage bin, a stirring mechanism is arranged in the storage bin, and a dredging mechanism is arranged in the discharging pipe. Compared with the prior art, the solvent pigment impurity removal device has the following advantages and effects that by arranging the conveying mechanism and the impurity removal mechanism, magnetic impurities in the pigment can be adsorbed through the magnet by utilizing magnetism, the impurity removal effect on the solvent pigment can be achieved, the purity and quality of the solvent pigment are improved, and then the purpose of meeting the production requirement of high-end products is achieved.

This utility model discloses a multifunctional garden management machine integrating fertilization and soil loosening, comprising a machine body, with rollers rotatably connected to both sides of the bottom of the machine body, a mounting base fixedly connected to the front end of the machine body, and fixed frames fixedly connected to both sides of the bottom of the mounting base. A rotating shaft is rotatably connected through the two fixed frames, and evenly distributed soil loosening blades are fixedly connected to the outer ring of the rotating shaft. A storage box is fixedly connected to the top left side of the mounting base, and a stirring rod is rotatably connected through the storage box. Evenly distributed stirring blades are fixedly connected to the outer ring of the stirring rod. In this utility model, a first motor drives the rotating shaft to rotate, thereby causing the soil loosening blades on the outer ring of the rotating shaft to rotate, loosening the soil. At the same time, a pump body draws out liquid fertilizer, which is sprayed out through a fertilizer nozzle, achieving the effect of fertilization while loosening the soil.

The utility model discloses a cell infusion device for cell biological treatment in the technical field of cell back -perfusion device, include: mounting bracket, one side of mounting bracket is provided with limit unit and shake unit, limit unit is used for limiting the position of infusion bag one side of mounting bracket, shake unit is used for installing limit unit one side of mounting bracket and control limit unit shake. In the utility model, through the surface fixed mounting of one drive rail of mounting panel, make when using, the user can set up infusion bag infusion pipe between two clamping rings, then rotate twist column, drive positive and negative toothed lead screw, realize the drive of two clamping rings, finally make two clamping rings just contact on the surface of infusion bag infusion pipe, like this can avoid infusion pipe to and fro shake when infusion bag shakes, also can not to infusion pipe carry out close clamping fixed, avoid the emergence of the situation of pulling infusion pipe.

The invention discloses a low-expansion three-temperature cold and hot plate and a preparation method, and belongs to the field of precise alloy components. The cold and hot plate is made of titanium-niobium-based alloy, the titanium-niobium-based alloy comprises, by atomic percent, 25%-35% of Nb, the total content of V and / or Ta smaller than or equal to 3% and the balance Ti, the titanium-niobium-based alloy comprises a three-temperature structure of a low-temperature adaptation area, a normal-temperature stable area and a high-temperature tolerance area, the thickness of the titanium-niobium-based alloy ranges from 1.5 mm to 2 mm, and the surface of the titanium-niobium-based alloy is provided with a nitride layer or a passive film. The preparation method comprises the steps of burdening, 2-3 times of vacuum consumable smelting, hot forging, hot rolling, partition cutting, pre-deformation regulation and control, solid solution quenching, cold rolling finishing, splicing forming and the like, and vacuum stress relief annealing and dual performance detection are matched. The method is suitable for scenes such as chip packaging and precision detection, and is low in cost and high in qualified rate.

This invention provides a lightweight wear-resistant steel alloyed with Nb, V, and Ti, its preparation method, and its applications, belonging to the technical field of lightweight wear-resistant steel. The lightweight wear-resistant steel of this invention, by mass percentage, comprises: Mn 23.0–26.0%, Al 7.5–8.3%, C 1.12–1.25%, Si 0.20–0.25%, Nb 0.05–0.20%, Ti 0.05–0.15%, V 0.05–0.10%, P ≤ 0.03%, S ≤ 0.01%, and the balance Fe. Experimental results show that the lightweight wear-resistant steel provided by this invention has a density ≤ 7.01 g / cm³. 3 Yield strength is 565–654 MPa, tensile strength is 901–985 MPa, elongation is 50.3–58.7%, and KV at -40℃. 2 The impact energy is 97-134J, and the wear resistance is improved by more than 30% with high impact energy.

This invention belongs to the field of industrial UV inkjet printing consumables technology, specifically relating to a UV white inkjet ink, its preparation method, and its application. The UV white inkjet ink contains aliphatic polyurethane acrylate, silane-modified epoxy polyester, reactive diluent monomer, photoinitiator, adhesion promoter, white pigment, and optional additives. The silane-modified epoxy polyester is prepared by the following method: esterification of a diol compound with itaconic acid, followed by a mercapto-olefin click reaction of the resulting unsaturated polyester polyol with mercaptosilane, and then a condensation reaction of the resulting silane-modified polyester polyol with halopropylene oxide to obtain the silane-modified epoxy polyester. The UV white inkjet ink provided by this invention has high adhesion to the substrate and is not easily peeled off after handling friction and outdoor exposure.

The present application relates to a kind of high stability water-in-oil PDRN emulsion and its preparation method, belong to the field of biotechnology;The preparation method includes the following steps: (1) PDRN enzymolysis: PDRN is added in DNaseI, supplement metal ion activates enzyme, when fragment enrichment shows <800bp, terminate enzymolysis reaction, obtain crude enzymolysis solution;(2) moderate molecular weight screening: pressurized ultrafiltration crude enzymolysis solution with ultrafiltration membrane, and screen out the target fragment of the permeate of molecular weight in 120-500bp;(3) water phase system optimization: 1,3-propanediol and ubiquinol are added in the permeate;(4) semi-continuous feeding gradient emulsification.The present application is by precise control PDRN molecular weight to take into account stability and solubility, optimize water phase component to realize system viscosity and transparency double standard, cooperate gradient emulsification to guarantee water-in-oil system stability, significantly improve product comprehensive quality and application value, with outstanding technical advantages.

The invention relates to the technical field of food processing, and discloses an embedding and fragrance locking process of dried orange peel flavored bread, which comprises the following steps: S1, pretreatment of dried orange peel raw materials and preparation of a characteristic fragrance base; s2, a preparation stage of a water phase and an oil phase of the compounded wall material; s3, an emulsifying and homogenizing stage; s4, a spray drying microcapsule forming stage; s5, a bread production whole-process fragrance locking adaptation application stage; through embedding and fragrance locking treatment, the problem that characteristic fragrance components are easy to volatilize and lose in the production process of the dried orange peel flavored bread is effectively solved, the natural characteristic flavor of the dried orange peel is completely reserved, the damage of a high-temperature processing link to flavor substances is avoided, the retention rate of the dried orange peel flavor in the finished bread is increased, and the fragrance retention time is prolonged; the dried tangerine or orange peel powder is added into the bread, so that the bread can present full and uniform dried tangerine or orange peel flavor in the processes of eating, chewing and aftertaste, the flavor level of the product is enriched, the bad flavors such as bitterness are prevented from being separated out, and the overall taste quality of the bread is improved.

This invention relates to the field of cable technology, specifically to a high-performance polyvinyl chloride (PVC) cable material and its preparation method. The cable material is based on PVC resin, combined with plasticizers and multifunctional flame-retardant composite fillers, with the filler content being 85-95 parts by weight per 100 parts by weight of resin. The multifunctional flame-retardant composite filler employs a multi-layered interface design: using magnesium hydroxide / calcium carbonate as the core, it first undergoes silane treatment to introduce epoxy sites, then constructs a phytic acid-tin-calcium-zinc chelate layer, and immobilizes double-grafted modified carboxymethyl-β-cyclodextrin, ultimately forming a tannic acid-metal ion polyphenol network layer. The preparation method includes pre-plasticization, segmented mixing with filler addition, and extrusion granulation. This invention effectively improves the filler-matrix interface compatibility, enhances flame retardancy, mechanical properties, and thermal stability, and solves the problem of insufficient durability in high-filler systems.