304 results about "Electron beam irradiation" patented technology

The invention relates to the technical field of power cables, and discloses a manufacturing process of a flame-retardant anti-rat-bite cable, which comprises the following steps: step S1, mixing and granulating in an inert atmosphere; step S2, conductor pretreatment; step S3, carrying out multi-layer co-extrusion coating; s4, gradient cooling and interface strengthening are carried out, and the co-extruded cable passes through a three-section type cooling tank in sequence to be cooled; and after cooling, carrying out electron beam irradiation crosslinking treatment on the cable immediately. The cable comprises a flame-retardant sheath layer, a long-acting rat-bite-proof layer, an insulating layer and a conductor from outside to inside. According to the invention, capsaicin is coated in a gelatin-Arabic gum composite capsule wall through a microencapsulation technology to form a physical isolation barrier, and the structure effectively prevents the contact between the repellent and the external environment, so that even in high-temperature mixing and long-term use, volatile components can be prevented from escaping, and the slow release period of the effective components is ensured to cover the design life of the cable.

The invention discloses a silane-crosslinked low-smoke halogen-free flame-retardant oil-resistant polyolefin cable material and a preparation method thereof. The method comprises the following steps: preparing a bio-based polyesteramide toughening phase which is pre-polymerized by castor oil-based polyamide and poly (butylene adipate-co-terephthalate) and is terminated by itaconic anhydride; the preparation method comprises the following steps: self-assembling phytic acid and melamine to wrap ammonium polyphosphate, so as to prepare supramolecular flame-retardant gel powder; the method comprises the following steps: grafting aramid pulp fibers by using a phosphorus-containing silane coupling agent to prepare a reactive liquid crystal reinforced phase; the preparation method comprises the following steps: blending and banburying the components with a hydrogenated styrene-isoprene-styrene block copolymer, an antioxidant and a peroxide cross-linking agent, carrying out dynamic vulcanization and interface bonding, and carrying out extrusion and electron beam irradiation to finally crosslink. An interpenetrating-topology network structure is formed in the prepared cable material, the crosslinking degree is larger than or equal to 82%, and the cable material is rapid in crosslinking, excellent in oil resistance, low in smoke and free of toxicity and is particularly suitable for super high-rise building hanging cables, deep sea exploration cables and new energy automobile liquid cooling cables.

The invention provides a water treatment method for generating singlet oxygen based on electron beam irradiation, belongs to the technical field of water treatment, and aims to provide a universal singlet oxygen generation method for a water treatment process, the method comprises the following steps: adding a metal salt into sewage to be treated, and uniformly stirring to obtain a mixed solution; wherein the metal salt comprises reducing metal ions; continuously aerating air into the mixed solution, so that the mixed solution is rich in oxygen; and carrying out electron beam irradiation on the mixed solution rich in oxygen, so that the reducing metal ions cooperate with the electron beam irradiation to activate the oxygen in the mixed solution to generate singlet oxygen, and removing new pollutants in the sewage to be treated.

The invention belongs to the related technical field of additive manufacturing, and discloses an electron beam melting wire liquid nitrogen copious cooling additive manufacturing method and system.The method comprises the steps that in the electron beam melting printing forming process, liquid nitrogen is sprayed to a molten printing wire under electron beam irradiation, and the liquid nitrogen is sprayed to the molten printing wire; the molten printing wires are subjected to nitridation reaction under the action of electron beams while being subjected to liquid nitrogen cryogenic cooling, so that the crystal structure of a formed part is regulated and controlled, and the mechanical performance is enhanced; and / or liquid nitrogen is sprayed to the printing wire material which begins to be solidified, so that the printing wire material is subjected to liquid nitrogen deep cooling, and the crystal structure of the formed part is regulated and controlled to achieve mechanical property enhancement. Liquid nitrogen is introduced into the electron beam additive manufacturing device for deep cooling, the extruded printing wire is solidified at an extremely high cooling speed after being melted, a large number of homogeneous nucleation sites are formed in a melting area due to the high supercooling degree, the solidification speed is high, a microstructure is customized into uniform and fine equiaxed crystals, the strength and toughness of the material are improved, and the production cost is reduced. The mechanical property is improved.

The invention discloses a moisture-absorbing, antibacterial and deodorizing polyester fiber fabric and a preparation method thereof, belongs to the technical field of fiber fabric preparation, and aims to solve the technical problem that the antibacterial and deodorizing performance and moisture-absorbing performance of a polyester fiber fabric in the prior art need to be further improved. The preparation method specifically comprises the following preparation steps: adding the polyethylene glycol terephthalate, the antibacterial modified filler and the auxiliary additive into a double-screw extruder, and carrying out melt spinning to obtain the antibacterial polyester fiber. The antibacterial modified filler is prepared, the filler and polyethylene glycol terephthalate are blended, melted and spun, antibacterial polyester fibers are prepared, quaternary ammonium salt type antibacterial monomers and sulfonate type hydrophilic monomers are grafted through alkalization treatment and the electron beam irradiation technology, the antibacterial and deodorization performance of the fiber fabric is improved, and the antibacterial and deodorization functions of the fiber fabric are improved. The moisture absorption performance is also improved.

An object is to provide a creation method of detection data used for an electron beam applicator itself to output detection data created with effective use of a grayscale range. The creation method of detection data includes at least two times of detection data output steps. The first detection data output step includes: a first electron beam irradiation step; a first detection step of generating a detection signal; a first light amount adjustment step; a step of repeating these steps; and a first output step. The second detection data output step includes: a first histogram calculation step; a second detection condition setting step; a second electron beam irradiation step based on the set second detection condition; a second detection step of generating a detection signal; a second light amount adjustment step; a step of repeating the above steps; and a second output step.

The invention relates to the technical field of high polymer materials, and discloses a low-smoke halogen-free irradiation crosslinking polyolefin cable sheath material and a granulation process thereof, the raw materials comprise an ethylene-vinyl acetate copolymer, an ethylene-octylene copolymer, an epoxy group-containing terpolymer and functionalized composite powder, the powder system superfine aluminum hydroxide is subjected to high-temperature grafting through vinyl silane, after cooling, an active coating layer is constructed by zinc methacrylate, active magnesium oxide and a lubricant, and the process adopts matrix resin main feeding, powder side feeding and low-temperature low-shear extrusion, and is subjected to air-cooled die surface hot cutting and electron beam irradiation crosslinking forming. The covalent bond and ionic bond synergistic enhancement mechanism is utilized, the contradiction between mechanical property loss and processing rheological property deterioration is solved under the high filling amount of 137-160 parts, the active components are effectively prevented from being scorched in the early stage, and the material is endowed with excellent tensile strength, elongation at break and surface quality.

A method for testing a packaging substrate with at least one electron beam column is described, wherein the packaging substrate is a panel level packaging substrate or an advanced packaging substrate. The method includes placing the packaging substrate on a stage in a vacuum chamber; directing at least one electron beam of the at least one electron beam column on at least a first portion of the packaging substrate; directing the at least one electron beam of the at least one electron beam column on at least a second portion of the packaging substrate; detecting signal electrons emitted upon impingement of the at least one electron beam for testing a first device-to-device electrical interconnect path of the packaging substrate; and illuminating at least a third portion of the packaging substrate with UV radiation.

The invention relates to the field of power cables, and particularly discloses an acid and alkali resistant waterproof power cable. The acid and alkali resistant waterproof power cable comprises a conductor layer, an insulating layer and a sheath layer which are sequentially arranged from inside to outside, the preparation method comprises the following steps: S1, preparing the conductor layer: smelting electrolytic copper, tin, silver and rare earth elements, and then performing wire drawing, and controlling the wire drawing speed to be 10-15m / s to obtain a conductor wire core; s2, extrusion of an insulating layer: mixing fluororubber, epichlorohydrin rubber, nano-silica and a flame retardant, and extruding the mixture at 70-90 DEG C by a twin-screw extruder to coat the conductor layer; s3, extruding a sheath layer: mixing the raw materials, and coating the raw materials outside the insulating layer at 60-85 DEG C by a single screw extruder; s4, irradiation crosslinking: carrying out electron beam irradiation on the coated cable; and S5, cooling and rolling. The cable can be used in a highly corrosive environment, and has the advantage of avoiding premature failure of the sheath layer of the power cable in the highly corrosive environment.

The invention relates to the technical field of polymer composite materials, in particular to a TPE-PP composite material for a folding joint of a pet trolley and a preparation method of the TPE-PP composite material. The problems that an existing joint material is insufficient in fatigue resistance and limited in environmental adaptability are solved. The composite material adopts a three-layer structure: a base layer takes high-crystallinity polypropylene as a matrix, and glass fiber reinforcement and elastomer toughening are assisted, so that high rigidity and high strength are realized; the functional layer is composed of a fatigue-resistant thermoplastic elastomer composite system and contains strengthening components such as nano SiO2 so as to disperse stress and prevent crack propagation; the surface layer is a functional layer and contains polytetrafluoroethylene micro powder to provide self-lubricating property, a silver-loaded zinc zeolite antibacterial agent to endow antibacterial and mildew-proof properties, and an anti-ultraviolet additive to improve weather resistance. The three layers form an interpenetrating network structure through co-extrusion and are crosslinked through electron beam irradiation, so that the interlayer binding force is improved. The material can remarkably prolong the service life of the folding joint of the pet trolley and improve the use safety and environmental adaptability.

The invention relates to the technical field of high polymer materials, and particularly provides a preparation method and application of an anion exchange membrane. The anion exchange membrane is prepared by the following steps: preparing a membrane from anion exchange resin which contains a repetitive structure unit and is shown in the formula (I), and then carrying out in-situ self-crosslinking induced by electron beam irradiation. The anion-exchange membrane is prepared by adopting an electron beam irradiation technology, so that irreversible damage to the performance of the anion-exchange membrane caused by high-temperature heat treatment can be effectively overcome; meanwhile, the electron beam irradiation can promote the cross-linking unit with low reaction activity to realize cross-linking reaction, so that the method has better universality; in addition, the irradiation dose can be accurately regulated and controlled, so that the anion exchange membrane prepared in batches has more excellent uniformity, and the requirement of large-scale production can be met.

The application discloses a method for precisely modulating microstructure of a silicon-rich silicon oxide film and a product prepared by the method. x The method comprises the following step S20: in-situ heating SiO x Film samples, and the electron beam generated by the transmission electron microscope is irradiated on the SiO x Film samples, so as to realize the thermal annealing treatment of the SiO x Film. The method promotes the process of decomposing the SiO x Film into nanometer silicon crystals and silicon dioxide by means of heating combined with electron beam irradiation, the processing area can be precisely controlled to the nanometer level, rapid thermal annealing is realized, and damage caused by the thermal annealing to the SiO

To provide an electronic beam irradiation device in which a conductive path having a bent shape can be easily assembled to a pressure vessel.SOLUTION: An electron beam irradiation device 10 comprises: a power supply unit 14; an acceleration unit 13 that accelerates an electron beam Eb based on power supplied from the power supply unit 14; a conductive path 30 that electrically connects the power supply unit 14 and the acceleration unit 13; and a pressure vessel 20 that houses the power supply unit 14, the acceleration unit 13, and the conductive path 30. The conductive path 30 comprises: a first divided conductive path 31 that is electrically connected to the power supply unit 14; a second divided conductive path 32 that is electrically connected to the acceleration unit 13; and a connection part 33 that connects the first divided conductive path 31 and the second divided conductive path 32. The conductive path 30 has a bent shape in which an extension direction of the first divided conductive path 31 and an extension direction of the second divided conductive path 32 intersect each other.SELECTED DRAWING: Figure 2

In order to achieve effective cooling, an X-ray emitter with a tube housing having a vacuum is provided. At least one anode is arranged in the tube housing, such that the anode is irradiated by an electron beam generated in a cathode and accelerated through an electrical field. The anode is excited, such that an X-ray deceleration radiation is emitted. The X-ray emitter has a thermoelectric converter (e.g., at least one thermophotovoltaic cell) for generating electrical energy. The thermoelectric converter is arranged, such that the thermoelectric converter may be irradiated at least in part by a heat radiation emanating from the anode.

To provide a laminate that enables production of a packaging bag which has sufficient strength and heat resistance and is excellent in recyclability and gas barrier property.SOLUTION: A laminate includes a base material and a sealant layer, in which the base material and the sealant layer are composed of the same material, the base material is subjected to at least one of stretching treatment and electron beam irradiation treatment, the same material is polyethylene or polypropylene, and a barrier coat layer is provided between the base material and the sealant layer.SELECTED DRAWING: Figure 1

This invention discloses an impact-resistant photovoltaic encapsulating film, its preparation method, and a photovoltaic module. The photovoltaic encapsulating film comprises multiple layers of unidirectional prepreg tape laminated together. The unidirectional prepreg tape is obtained by melt impregnation of thermoplastic resin and continuous fibers surface-treated with a coupling agent. The thermoplastic resin includes polyolefin elastomer (POE) and POE grafts. During the melt impregnation process, the continuous fibers surface-treated with the coupling agent and the POE grafts undergo a chemical reaction to achieve compatibility. This invention employs a pre-melt impregnation followed by crosslinking technique. The uncrosslinked POE resin has good fluidity and can be fully melt-impregnated with the continuous fibers. Electron beam irradiation post-treatment technology allows the impregnated base film to undergo a crosslinking reaction, resulting in a fiber-reinforced impact-resistant photovoltaic encapsulating film. The film prepared by this invention meets industry technical standards for UV resistance, aging resistance, and impact resistance, while also being low-cost and simple to manufacture, making it widely applicable in the field of lightweight flexible photovoltaic modules.

Provided are a bacterial nanocellulose transparent film, a manufacturing method thereof, and a packaging material including a food packaging material or an electronic product packaging material using the same capable of newly manufacturing a bacterial nanocellulose transparent film with an oxygen barrier property, a moisture barrier property, or a UV barrier property by performing electron beam irradiation and a film process on bacterial cellulose.

The application discloses a preparation process of high-adhesion EB electron beam curing display cover plate ink, and relates to the technical field of ink preparation. The process uses high-functionality acrylate monomers, polyurethane acrylate prepolymers and an interface coupling agent as main components, realizes excellent adhesion and abrasion resistance to glass and plastic substrates through electron beam irradiation and rapid curing, and meets the requirement of high light transmittance. The process overcomes the problems of insufficient adhesion and high residual monomer of the existing EB curing ink, improves the comprehensive performance of the EB curing ink, and is suitable for the field of high-end display cover plate printing and manufacturing.

The application belongs to the technical field of graphene materials, and discloses a preparation method of graphene heat dissipation film for electronic equipment by using electron beam technology. The carbonization reaction and graphitization reaction of the organic plastic film are carried out by electron beam irradiation to prepare a semi-finished graphene heat dissipation film, and the graphene heat dissipation film is finally obtained by ion titanium infiltration treatment. The graphene heat dissipation film has excellent heat conduction performance and is suitable for heat dissipation components of portable electronic equipment. The graphene heat dissipation film prepared by the method has excellent heat conduction performance and is suitable for heat dissipation components of portable electronic equipment.

The invention relates to a device and a method for simultaneously treating wastewater and waste gas by utilizing electron beam irradiation. According to the device and the method disclosed by the invention, the irradiation treatment of the wastewater and the waste gas is creatively realized at the same time, the purpose of treating the gas and the water together is achieved, the utilization rate of rays is improved, the occupied area of equipment, the investment cost and the operation cost are saved, and the good effect of achieving multiple purposes at one stroke is achieved.

The invention provides a photovoltaic cable and a manufacturing method thereof, and the photovoltaic cable comprises a conductor and an insulating layer which coats the outer side of the conductor; the outer side of the insulating layer is coated with the sheath layer; wherein the insulating layer and the sheath layer are both made of a high-flame-retardant low-smoke halogen-free cross-linked polyolefin material; the insulating layer and the sheath layer are integrally cross-linked and formed at one time through co-extrusion and electron beam irradiation; the sheath layer and the insulating layer are made of a high-flame-retardant low-smoke halogen-free cross-linked polyolefin material, and the co-extrusion and electron beam irradiation cross-linking process is combined, so that the properties of high flame retardance, low smoke, zero halogen, interlayer binding force and the like of the photovoltaic cable are ensured, the environmental protection property, the sealing property and the long-term stability of the photovoltaic cable are improved, and the layout of a home-entry photovoltaic system is met.

The invention relates to the field of mutant strain screening models, in particular to a uranium pollution remediation forward mutant strain screening model and a construction method thereof.The construction method comprises the following steps that mutant strains are irradiated, and mutant strains are obtained; determining functional index data of the mutant strain, and respectively calculating standard scores of all functional indexes through a Z-score formula; performing principal component analysis and bidirectional clustering analysis by using standard scores to obtain dominant indexes of the mutant strains; obtaining the subjective weight WAHP of the function index of each scheme layer through an analytic hierarchy process; calculating objective weight WEWM of each function index through an entropy weight method; calculating a combined weight W by adopting a linear weighted fusion method; and calculating a comprehensive score of each model to complete model construction. According to the invention, the regulation and control rule of the electron beam irradiation dose on the multifunctional traits of the three strains is systematically explored, a comprehensive screening model suitable for multiple scenes is constructed in combination with an AHP-entropy weight method, and a theoretical basis, high-quality germplasm resources and a scientific and efficient screening method are provided for directional breeding of uranium pollution remediation microorganisms.

The present invention provides an electron microscope capable of suppressing light scattering due to a hole for electron passage in a reflector. The electron microscope comprises an electron source that emits an electron beam with which to irradiate a sample, a light source that emits excitation light with which to irradiate the sample, a reflector which has a hole that the electron beam passes through and which reflects the excitation light toward the sample, a detector that detects electrons emitted from the sample irradiated with the electron beam and outputs a detection signal, and a control unit that generates an observation image of the sample on the basis of the detection signal. The electron microscope is characterized by further comprising: a condensing lens disposed between the light source and the reflector to condense the excitation light and also form a dark area covering the hole in the center of the excitation light.

The application belongs to the technical field of nanometer layered materials, and particularly relates to a method for preparing MXenes material through electron beam irradiation; acid etching and electron beam irradiation are combined, MAX phase is etched at the same time, and the original closely stacked structure is modified into a sheet layer structure through electron beam irradiation. The MXenes material prepared through the method has high etching efficiency and controllability, the introduction of toxic F ion acid is avoided, the method is environment-friendly and simple to operate, and the obtained MXenes material has a dendritic layered structure.

The invention discloses a preparation method of a medical radiopharmaceutical aseptic packaging material, which comprises the following steps: firstly, blending graphene enhanced PET (Polyethylene Terephthalate) and radiation crosslinked polyethylene through a melt extrusion process to form a three-layer composite structure with antibacterial property, mechanical support property and high barrier property; secondly, forming by adopting a laser heat sealing technology, embedding a photochromic microbial indicator, and simultaneously integrating a PTFE (Polytetrafluoroethylene) membrane filter layer and an iodine adsorption pad; then, electron beam irradiation is used for body sterilization, and ultrasonic atomization peracetic acid is used for disinfection; finally, a PVDF-HFP / zinc oxide composite nanofiber membrane is prepared through an electrostatic spinning technology, a PLA buffer layer is sleeved, a temperature-sensitive radiation protection material is pre-buried, and seamless sealing is completed; experimental results show that the novel packaging material not only has excellent antibacterial performance, mechanical strength and chemical stability, but also can effectively improve the shielding efficiency on beta / gamma rays, and ensures the safety and stability of radiopharmaceuticals in the storage and transportation processes.

The present disclosure relates generally to insulation materials and methods for making and using them. In one aspect, the disclosure provides a method for making a borosilicate fiberglass insulation material comprising a plurality of borosilicate glass fibers, the method comprising providing a borosilicate fiberglass comprising a plurality of borosilicate glass fibers; and irradiating the plurality of borosilicate glass fibers of the borosilicate fiberglass with an electron beam.

A monitoring device (100) and an electron beam irradiation sterilization device (500). The monitoring device (100) comprises: a main housing (1) having a first accommodating cavity (11); the sensing part (2) is arranged in the first accommodating cavity (11) and comprises a sensor body (21) and a probe (22) connected with the sensor body (21); the sealing cover (3) is connected with the main shell (1) and abuts against the sensing part (2), the sealing cover (3) comprises a cover body (30) and a groove (31), the cover body (30) is connected with the main shell (1) and abuts against the sensor body (21), and the groove (31) is arranged on the sensing part (2) in a surrounding mode to form a sealing cavity (32) for containing the probe (22); and the sealing cover (3) is used for forming radiation shielding on the sensor body (21) and exposing the probe (22) to electron irradiation.

The invention relates to the technical field of pressure-sensitive adhesives, and particularly discloses a preparation method of an EB-cured siloxane-acrylate composite pressure-sensitive adhesive, which comprises the following steps: step 1, mixing raw materials: mixing the raw materials of the composite pressure-sensitive adhesive, the raw materials of the composite pressure-sensitive adhesive at least comprising siloxane monomers / oligomers and acrylate monomers / oligomers; step 2, heating to form liquid; step 3, coating the base material; 4, EB irradiation curing is conducted, specifically, electron beam EB irradiation treatment is conducted on the base material with the sizing material coating in the step 3, the dosage of electron beam irradiation ranges from 5 kGy to 50 kGy, the sizing material coating is rapidly crosslinked and cured, and a solid adhesive film is formed; and step 5, cooling and winding: a cooling and winding device is adopted to wind the solid adhesive film and cool the solid adhesive film at the same time, so that residual heat generated by EB irradiation is removed. Continuous and stable conveying and uniform cooling of the solid adhesive film can be achieved, and the problems of adhesive film softening and adhesion and base material thermal deformation caused by residual heat are effectively avoided.

This invention belongs to the field of polymer-based solid-state battery technology, specifically disclosing a method for preparing a precursor solution and a gel polymer electrolyte, and their applications. The precursor solution includes a liquid monomer and an electrolyte salt dissolved in the liquid monomer, wherein: the monomer is one or more of the following: cyclic ether, cyclic carbonate, acrylamide and acrylamide derivatives containing functional groups, acrylate and acrylate oligomers containing double bonds on one side, acrylonitrile and acrylonitrile derivatives containing functional groups, cyanoacrylate and cyanoacrylate derivatives containing functional groups; the electrolyte salt is a lithium salt, potassium salt, or sodium salt. This invention utilizes electron beam irradiation to initiate the polymerization of the precursor solution inside the battery to prepare a gel polymer electrolyte or polymer-based battery, avoiding the adverse effects of using initiators on battery performance, while effectively improving the contact performance of the electrode-electrolyte interface. This preparation method is simple and efficient, and is conducive to large-scale production.

The invention relates to the technical field of nano zero-valent iron wastewater treatment, and discloses a method for in-situ regeneration and inactivation of nZVI through electron beam irradiation and a nano zero-valent iron membrane, the electron beam irradiation and the nano zero-valent iron (nZVI) membrane are cooperated to construct a green long-acting treatment system for Cr (VI)-containing wastewater: the wastewater is controlled to flow through a high-dispersion nZVI membrane in a thin-layer advection mode, and the Cr (VI)-containing wastewater is subjected to in-situ regeneration and inactivation; and meanwhile, electron beam irradiation is received, strong reducing particles such as hydration electrons (eaq-) and hydrogen free radicals (. H) generated by irradiation can carry out in-situ reduction on inactivated nZVI, Fe (0) or part of Fe (II) can continuously play a reducing role, and the long-acting effect of the system for treating Cr (VI)-containing wastewater is achieved together with synchronous intensified reduction of irradiation on Cr (VI). According to the method, the wastewater treatment capacity in unit time can be remarkably improved, meanwhile, the irradiation energy consumption and the nZVI use amount are reduced, efficient circulation of the iron reduction effect is achieved, and iron sludge pollution is greatly reduced.