785 results about "Radiation protection" patented technology

The invention provides anti-ionizing radiation powder with a core-shell heterogeneous gradient structure and a preparation method and application of the anti-ionizing radiation powder, and belongs to the field of radiation protection.The preparation method of the anti-ionizing radiation powder with the core-shell heterogeneous gradient structure comprises the following steps that high-atomic-number metal salt is added into deionized water, aging, washing, drying and primary calcination are conducted in sequence, and the anti-ionizing radiation powder with the core-shell heterogeneous gradient structure is obtained; a core layer is obtained; the core layer and low-atomic-number metal salt are added into deionized water, aging, washing, drying and primary calcination are sequentially conducted, and preliminary wrapping powder with the high-atomic-number metal core layer wrapped by low-atomic-number metal is obtained; and adding the preliminarily wrapped powder and rare earth salt into deionized water, and sequentially performing aging, washing, drying, primary calcining, secondary calcining, airflow crushing and air rotation purging to obtain the anti-ionizing radiation powder with the core-shell heterogeneous gradient structure. Through cooperation of the core-shell heterostructure, the high-atomic-number oxide, the low-atomic-number oxide and the multi-element rare earth element, the shielding performance of the material is remarkably improved.

The invention belongs to the technical field of high polymer materials, and particularly relates to a PVB (Polyvinyl Butyral) film and a preparation method thereof. The PVB film provided by the invention is prepared from the following components in parts by mass: 100 parts of PVB resin, 33 to 36 parts of triethylene glycol di-2-ethylhexoate, 7 to 9 parts of integrated anti-radiation toughening filler, 1 to 2 parts of organic montmorillonite, 0.8 to 1.2 parts of composite coupling agent, 0.5 to 1 part of ultraviolet light absorber, 0.6 to 0.8 part of antioxidant and 0.8 to 1 part of heat stabilizer. The integrated anti-radiation toughening filler adopts a core-shell structure, the anti-radiation core is composed of bismuth oxide and tungsten oxide according to the mass ratio of 3: 1, and the elastic coating layer is maleic anhydride grafted modified POE. The preparation method comprises the steps of pre-dispersion treatment, component mixing, melt extrusion, film casting, graded cooling, two-way stretching and the like. Through the core-shell structure design of the integrated anti-radiation toughening filler and the optimized processing technology, the anti-radiation performance and the toughening performance are synergistically improved, and the prepared film has the advantages of excellent anti-radiation effect, high toughness and good transparency.

The invention discloses a reactor instant-slow source item radiation shielding design system and method, and relates to the field of computer aided design of reactor radiation protection. The reactor instantaneous-delayed source item radiation shielding design system comprises a model conversion module, a population construction module, an index calculation module, an individual evaluation module, a selective evolution module, a hierarchical sorting module and an iterative convergence module which are in data flow connection in sequence from front to back. The invention relates to a reactor instant-slow source item radiation shielding design method. The method comprises the following steps: model conversion; constructing a population; calculating indexes; performing individual evaluation; selecting evolution; layering and sorting; and carrying out iterative convergence. According to the invention, a radiation shielding design system covering the whole life cycle of reactor operation and shutdown is established, and collaborative breakthrough of light weight, high safety and efficient convergence is realized through a multi-objective optimization algorithm.

The present invention relates to a lead plate installation construction method for a radiation protection project in a radiological medical room, which mainly includes the following steps: S1. After the main structure of the radiological medical room is completed and passed the acceptance, the radiation protection project and the secondary decoration project are started; S2. The technical scheme of the radiation protection project is determined; S3. The radiation protection project is carried out on the ground; S4. The radiation protection project is carried out on the wall; S5. The radiation protection project is carried out on the ceiling; S6. The fine decoration construction is carried out according to the fine decoration construction drawing. This construction method solves the key link of the radiation protection project - the problem of lead plate installation, and can ensure that the lead plate fits the medical room without dead angles, provides all-round protection for the radiological medical room, and effectively prevents the leakage of harmful rays that endangers personal safety; at the same time, it takes into account the fine decoration construction requirements of the radiological medical room, and ensures a close connection between the radiation protection project and the fine decoration project.

The invention relates to a nuclear facility radiation field model construction method and a dose evaluation system, and the system is configured to establish a three-dimensional space coordinate system, construct a three-dimensional radiation field model based on radiation field data and radiation source data, and correct the radiation field model at the current moment according to the radiation source data, introducing an attenuation coefficient of the three-dimensional nuclear facility on the original three-dimensional scene model to correct the three-dimensional scene model; correcting the radiation field model based on the corrected three-dimensional scene model; calling the three-dimensional scene model and the radiation field model according to an operation path selected by a user; and simulating the space range of each organ of the human body sweeping along with the movement of the human body in the working path in the three-dimensional scene model, obtaining the time of each organ staying on the path of the unit space, and calculating the real-time dose received by the human organ according to the radiation dose rate in the unit space. According to the invention, the change of the radiation field caused by the disassembly and assembly of the nuclear facility can be corrected, and the optimization of radiation protection is realized.

The invention relates to the technical field of pipeline decontamination, in particular to an online pipeline ultrasonic decontamination device and method suitable for various pipe diameters, and the online pipeline ultrasonic decontamination device comprises a numerical control generator, a transducer, an amplitude-change pole, an adaptive clamp, an online monitoring device and other key components. And through the designed adaptive clamp, the device can act on pipelines with various pipe diameters and can move along the pipelines, and the decontamination requirements in different scenes are met. The online ultrasonic decontamination device is suitable for maintenance and cleaning work of pipelines with different pipe diameters in nuclear power facilities, and has important significance in improving the safety of the nuclear facilities and guaranteeing radiation protection for operators. The problem that an ultrasonic device is poor in applicability is effectively solved, meanwhile, the flexibility of the device is guaranteed, effective online decontamination of pipelines with various pipe diameters can be achieved through a single set of device, the decontamination cost of radioactive contamination of nuclear facility pipelines is effectively reduced, online efficient decontamination of radioactive contamination deposited in the pipelines is achieved, and the service life of the pipelines is prolonged. The safe and stable operation of the reactor is ensured, and the radiation risk of operators is reduced.

The invention discloses anti-radiation hydrogel capable of being used for interventional radiosurgery and a preparation method and application thereof.The anti-radiation hydrogel is in bridge connection with polymer chains of sodium alginate and sodium hyaluronate through the physical interaction between Fe < 3 + > and carboxyl, and the reversible interaction between Fe < 3 + > and carboxyl endows the hydrogel with the shear thinning characteristic; the injectability is ensured; the bismuth oxide nano-particles and the barium sulfate nano-particles are doped to achieve efficient attenuation of X-rays in the range of 20-100 keV, and meanwhile, the complementary K-edge absorption characteristics of the bismuth oxide nano-particles and the barium sulfate nano-particles are utilized, and the radiation absorption effect of a hydrogel network structure is combined, so that broad-spectrum radiation protection is achieved; according to the invention, acrylamide is taken as a raw material, an interpenetrating network elastic hydrogel of three polymers is formed under the action of polymerization under thermal initiation of acrylamide, the conversion from an injectable state to a solid state is realized, and at the moment, the cured hydrogel has tough mechanical properties, can also form a protective layer similar to gloves, and can be used for radiation protection in interventional operations.

A portable small protective workstation for alpha nuclide operation comprises a protective cabin, a transparent window and glove holes are formed in the front side face of the protective cabin, radiation-resistant operating gloves are embedded in the glove holes in a sealed mode, a tray inlet is formed in the side face of the protective cabin, and a drawer type bracket is connected to the tray inlet in a sliding mode. The drawer type bracket comprises a tray layer, a cushion layer and a cover plate, the tray layer and the cushion layer are both vertically and fixedly connected to the side face of the cover plate, the tray layer is located above the cushion layer, a high-adsorbability radioactive water absorption pad is fixedly installed on the cushion layer, a plurality of through holes are formed in the bottom face of the tray layer, and the tray layer and the cushion layer are movably installed in the protection cabin body through a tray inlet. The cover plate abuts against the outer side face of the protection cabin in a sealed mode. An air filter box is arranged above the protective cabin body, and a filter layer is arranged in the air filter box. According to the utility model, the defects in the prior art are overcome, and the organic unification of radiation protection, pollution control and experiment convenience for operators is realized.

The invention relates to the technical field of accelerator radiation protection, in particular to an induced radioactivity assessment method suitable for a mobile accelerator component. Monte Carlo simulation software is adopted to calculate radionuclide activity concentrations in different areas of an acceleration component before movement, then radionuclides serve as radiation source items, and three-dimensional space dose rate distribution of the component and the periphery when the position of the accelerator component changes is obtained through calculation. And rapid evaluation of the received dose of the staff during maintenance and rapid formulation of a maintenance scheme are realized. The method effectively promotes the application of the Monte Carlo method in the field of radiation protection of the accelerator, provides reference for radiation hazards to workers, and provides technical support for radiation protection and operation maintenance of the accelerator.

The invention discloses a rapid large-scale calculation simulation method and system for gamma radiation dose in a dynamic environment and a storage medium, and belongs to the technical field of ionizing radiation protection. The method comprises the following steps: firstly, constructing a triangular mesh scene model containing a radioactive source and a shielding body, and discretizing the radioactive source into a local point kernel; global coordinates of the point kernel and the vertex of the triangle are calculated in parallel by using a GPU, and a maximum parallelization hierarchical surrounding structure MPBVH of the scene is constructed; ray tracing is executed in parallel on the GPU, and all intersection points of MPBVH calculation rays and the shielding body are traversed to determine the thickness and the material of each shielding layer; and finally, dose values of all counting grids are calculated in parallel by adopting a point kernel method. When a radioactive source or a shielding body in a scene is subjected to dynamic changes such as movement and rotation, geometric data can be quickly updated, and calculation can be executed again. According to the method, the speed of large-scale point kernel calculation is increased, the influence of the environmental complexity on large-scale calculation time consumption is small, and the method can be suitable for rapid large-scale calculation and dynamic updating of the radiation field in the complex dynamic environment.

The present disclosure discloses a medical hydrogel, formed by in-situ crosslinking an aldehyde-terminated multi-arm star polyethylene glycol and a polyamino compound, wherein the aldehyde group and the multi-arm star polyethylene glycol are linked by a chemical bond such as an ether bond, an amide bond, an ester bond, a urethane bond, an imine bond, or a urea bond, and the molar ratio of the amino in the polyamino compound to the aldehyde group in the aldehyde-terminated multi-arm star polyethylene glycol is 0.4-4.4:1. The polyamino compound is polylysine or a mixture of polylysine and polyethylenimine in a molar ratio of 2-30:3. The hydrogel of the present disclosure gels rapidly, has a long-term stability in an aqueous solution, and still has good swelling property and stability after a plurality of radiations, and thus can be used as a medical radiotherapy protection spacer for radiation protection.

The invention relates to the technical field of photovoltaic adhesive films, and discloses an anti-radiation photovoltaic packaging adhesive film, a preparation method thereof and a photovoltaic module. The adhesive film is of a multi-layer co-extrusion composite structure formed by co-extrusion molding and irradiation, and comprises an upper surface layer, a middle functional layer and a lower surface layer, the upper surface layer is a radiation-resistant polymer matrix (such as EVA-g-St, EVA-g-(alpha-MeSt), POE-g-St and an EVA / POE-aromatic resin blend); the middle functional layer comprises a packaging resin matrix, an anti-radiation agent (which is a nano-scale radiation protection material such as a rare earth oxide, a heavy metal oxide, a boron-containing compound and a polymer derivative of a benzotriazole type ultraviolet absorbent) and a stabilizer; and the lower surface layer is a bonding surface layer formed by light-transmitting bonding resin. The adhesive film is good in radiation resistance, the light transmittance, the cohesiveness, the elongation at break retention rate, the yellowing resistance, the power attenuation resistance of a component and the like after accelerated radiation are obviously improved, and the service life of the component under strong radiation can be prolonged.

The invention relates to the technical field of radiation protection equipment, and provides a multi-scale self-adaptive fixing system for a lead plate, in the aspect of lead plate fixing, through a three-degree-of-freedom structure and a precise force control system of a shape memory alloy driving clamp, the clamping angle and force can be adjusted in a self-adaptive manner, the plastic deformation of the lead plate is effectively avoided, and the service life of the lead plate is prolonged. The problem that a traditional clamp is poor in fixing precision is solved. And due to the innovative structure of the modular quick connection assembly, the assembly and the disassembly are convenient, the seam leakage rate is greatly reduced, and the radiation protection performance is improved. In terms of environmental adaptation, the temperature and humidity cooperative control system can accurately adjust the temperature of the lead plate, and the self-repairing nano ceramic anti-corrosion coating can effectively isolate corrosion ions and automatically repair the coating. The intelligent monitoring and early warning system utilizes a multi-dimensional sensor, edge calculation and digital twinning technology to monitor the state of equipment in real time, quickly diagnose faults and perform graded early warning, so that the safe and stable operation of the system is guaranteed, and the reliability and the intelligent level of the equipment are greatly improved.

The present invention relates to intracellular copper zinc superoxide dismutase inhibitors for protecting a subject from damage caused by radiation outbreak. The invention also relates to kits comprising SOD1 inhibitors and radiosensitizers for cancer cells, to the in vitro use of SOD1 inhibitors for protecting non-cancer cells from ionizing radiation, and to methods, compositions and uses related thereto.

The invention provides a wireless electronic personal dosimeter capable of dynamically adjusting an alarm threshold value and a control method, and relates to the technical field of radiation monitoring. Comprising a detection module used for collecting historical dose data of a user and constructing a personal dose management library. And the wireless communication module is used for extracting accumulated dose data. And the man-machine interaction module is used for setting a fixed alarm threshold value, setting a personalized alarm threshold value according to the real-time accumulated dose and the accumulated dose data, comparing the fixed alarm threshold value with the personalized alarm threshold value in real time, and selecting a lower value as a real-time alarm triggering standard. And the alarming and updating module is used for judging whether the current dose of the user exceeds a real-time alarming triggering standard, if so, alarming, and uploading the current dose to the personal dose management library for updating. According to the invention, through setting the personalized alarm threshold value, the personal dose accumulation risk can be effectively reduced, the personnel in a low-dose environment for a long time can be more effectively protected, and personalized and precise management of radiation protection is realized.

The invention discloses an industrial CT continuous online detection system, which relates to the technical field of industrial detection and comprises a standing detection box, a lifting detector, a rotary table, a controller and a continuous automatic conveyor, the detection box provides a closed protection space for detection, lifting detectors are arranged on the two sides of the detection box, each lifting detector comprises a high-energy ray source and a receiving end, the high-energy ray sources and the receiving ends synchronously ascend and descend to adapt to different workpiece heights, and internal defect detection is achieved through ray penetration imaging; through cooperation of intermittent rotation of the controller and the conveyor, automatic continuous operation of the whole process of workpiece feeding, pretreatment, detection and discharging is achieved. The controller can realize multi-radiation protection to guarantee the operation safety, and meanwhile, the workpiece is cleaned and dried, so that the precision of a subsequent detection link is improved; the problems that existing industrial CT detection equipment is low in efficiency and insufficient in radiation protection, and the detection precision is prone to interference are solved.

The invention discloses an intelligent linkage system of radiographic inspection equipment and a protection device. The intelligent linkage system comprises an image recognition module, a controller and a driving and protection structure. The image recognition module captures an image of a detected person and position change information of radiographic inspection equipment and transmits the information to the controller; the controller calculates the height of a detected person, a detection part and an equipment position through a convolutional neural network algorithm, determines a target protection position and generates a motor driving instruction; the driving and protection structure drives the protection part to the target position according to the instruction. According to the system, machinery and artificial intelligence are combined, the system can automatically adapt to different crowds, automatic radiation protection of DR and CT examination is achieved, the protection standardization and the working efficiency are improved, and the radiation risk is reduced.

The utility model discloses a quality control and protection detection die body for animal digital X-ray photography equipment, which comprises a water die, an upper lead point and a lower lead point are respectively arranged at the centers of the upper surface and the lower surface of the water die, and the upper lead point and the lower lead point are positioned on the central axis of the water die; a first detection plate, a second detection plate and a third detection plate are movably arranged above and below the water mold; a cross lead wire is arranged on the first detection plate; a low-contrast resolution module and a high-contrast resolution module are arranged on the second detection plate; and a groove with the same shape as the detector is formed in the third detection plate. The utility model can be used for quality control detection of digital X-ray photography equipment, ensures the shooting quality of the equipment, meets the requirements of veterinarians for diagnosing animal diseases, and can also be used as a scatterer for radiation protection detection in an X-ray place.

The invention discloses a multi-angle X-ray imaging system based on a detachable scintillation screen, and belongs to the technical field of X-ray imaging. The system comprises a base, a first / second rotating seat, a scintillation screen assembly, an objective table, a prism assembly, a protection module and a control module, wherein the scintillation screen assembly supports rapid switching between a flexible scintillation screen and a non-flexible scintillation screen and has a multidirectional position adjusting function, and the objective table lifting mechanism and an adjusting structure of the prism assembly jointly guarantee that the centers of the X-ray source, the sample to be tested, the scintillation screen and the prism are coaxially aligned. The protection module constructs a full-dimension radiation protection and state early warning system through a lead housing, a lead glass observation window, a radiation detection module and a tricolor lamp, operation safety is effectively guaranteed, and the control module comprises a master control system and an external touch screen and can achieve parameter presetting, intelligent regulation and control and detection data storage. The system can flexibly switch a static three-dimensional imaging mode and a dynamic rotary imaging mode, and can adapt to regular and special-shaped sample detection; and by replacing the scintillation screen, the performance of different scintillation screens can be conveniently detected. The system is convenient to operate and high in safety, and meets the multi-angle X-ray imaging requirements in the fields of industrial quality inspection and scientific research.

The present application provides a method for synergistically extracting polysaccharides from Kuding tea and an application of the polysaccharides in radiation protection. The extraction process of the polysaccharides comprises the following steps: subjecting the dried Kuding tea to steam explosion treatment, crushing the Kuding tea into particles with a size of 90-100 mesh, immersing the Kuding tea particles in distilled water, adding the solution into a microwave countercurrent extraction device, and simultaneously applying ultrahigh pressure for synergistic extraction to obtain an extraction solution. After centrifugation, the supernatant is collected, Sevage solution is added to remove proteins, and the supernatant is collected. Then, anhydrous ethanol is added to the supernatant, followed by centrifugation and freeze-drying to obtain the polysaccharides. The present application provides a method for synergistically extracting polysaccharides from Kuding tea, and it is found that the polysaccharides have a radiation protection effect, which provides a basis for further deep processing and a preparation method with a higher extraction rate.

The invention provides a homogeneous composite material, a composite material system, a stacking structure and a radiation protection material design method, and relates to the technical field of space radiation protection materials.The homogeneous composite material is prepared from, by mass, 10-30% of epoxy resin, 10-90% of bismuth trioxide and the balance polyethylene and boron nitride which are equal in mass fraction. According to the invention, the radiation protection material with radiation resistance and light weight can be designed.

The invention relates to the technical field of radiation protection and environment monitoring, and particularly discloses a radioactive waste gas emission radiation dose real-time monitoring system which comprises a fixed monitoring base station network, an autonomous mobile monitoring cluster, a data fusion and cooperative control center and a radiation dose field three-dimensional reconstruction and evaluation terminal. Through air-ground cooperative monitoring, plume prediction and intelligent path planning based on an atmospheric diffusion model, and a physically constrained spatial interpolation algorithm, efficient tracking of a radioactive plume three-dimensional dynamic diffusion process and accurate reconstruction and visual evaluation of a three-dimensional dose field are realized. According to the system, an air-ground cooperative monitoring system composed of a fixed base station network and an autonomous mobile cluster is constructed, so that a passive and static monitoring normal form is fundamentally changed.

The invention discloses bismuthate glass. The bismuthate glass is prepared from the following main raw materials: 50 to 83 weight percent of Bi2O3, 10 to 20 weight percent of B2O3, 3 to 10 weight percent of ZnO, 3 to 10 weight percent of SiO2 and 3 to 10 weight percent of Al2O3; 0-4wt% of TiO2 is added on the basis of the total weight of the main raw materials. The invention further discloses a coating based on the bismuthate glass. The reflection performance of the glass coating is remarkably improved, the radiation refrigeration effect of the glass ceramic coating is remarkably improved, and the glass ceramic coating has the radiation protection, insulation and anti-static effects.

The invention discloses a modular hot cell, and relates to the technical field of radiation experiments. The hot cell comprises: a base; a shielding body, wherein the shielding body is arranged on the base; the shielding body is arranged on the base, the shell is arranged on the base, and the shell is located in the shielding body; part of the passing assembly is arranged on the shielding body, and part of the passing assembly is arranged on the shell; a part of the observation assembly is arranged on the shielding body, and a part of the observation assembly is arranged on the shell. According to the modularized hot chamber, through the modularized splicing structure of the base, the shielding body and the shell, the construction efficiency of the hot chamber is remarkably improved, the nested design of the shielding body and the shell forms a multiple radiation protection barrier, and the radiation leakage amount is controlled to be at an extremely low level while the operation visibility of personnel is guaranteed. According to the invention, a user can inspect the damaged fuel element at the first time, and the efficiency and reliability of fuel element damage inspection and analysis are improved.

The invention discloses an electromagnetic environment-friendly radiation protection assessment method and system, and the method comprises the steps: obtaining electromagnetic field data containing power frequency and high-frequency components through a data collection device, generating a multi-dimensional index data set and a radiation characteristic distribution diagram through the combination of exposure time and a crowd sensitivity index through a computational simulation method, and accurate quantitative analysis of the complex electromagnetic environment is realized. On the basis, a weight analysis method is adopted to fuse effect parameters to calculate a risk quantitative score, when the score exceeds a safety threshold value, radiation limit value data is automatically extracted to generate a visual risk map, and a processing module is linked to output a grading protection instruction. By activating protection configuration in the sensor network, decision unit parameters are dynamically adjusted according to real-time electromagnetic field data, and an optimized protection scheme including a dynamic strategy is formed. According to the invention, the conversion from passive protection to active early warning is realized, and the intelligent level and protection effect of electromagnetic radiation protection are significantly improved.

The invention discloses an anti-radiation medical protective glove and a production process thereof, and belongs to the technical field of medical protective gloves, a polydopamine hollow microsphere is prepared by using ZIF-8 as a self-sacrifice template, bismuth and gadolinium elements are loaded through hydrothermal synthesis and ion adsorption, a composite shielding microsphere is prepared, and the composite shielding microsphere is used for preparing the anti-radiation medical protective glove. Then, the composite shielding microspheres and a nano starch enhanced cross-linked network are synergistically introduced into a natural latex matrix, after dipping forming, a hydrophilic / hydrophobic wetting gradient is constructed on a glove lining through mask auxiliary plasma etching, and the anti-radiation medical protective glove is prepared. Through the cooperation of the shielding function of the composite microspheres, the mechanical enhancement of a nano starch cross-linked network and the surface one-way moisture conduction function, the glove has excellent radiation protection performance and also has the characteristics of being light, flexible and comfortable to wear, the problems that a traditional lead rubber glove is heavy, rigid and poor in air permeability are effectively solved, and the service life of the glove is prolonged. The system is especially suitable for medical scenes requiring high flexibility and comfort, such as interventional radiosurgery.

The present application relates to a kind of core high probe extraction mechanism, which provides effective radiation protection during the removal of the probe by introducing a shielding cylinder, significantly reduces the radiation dose that can be received by the operator when working, improves the safety of the working environment.Secondly, the present application also configures a positioning connection device with a positioning camera, which can monitor and adjust the position of the lifting moving assembly in real time, ensure its accurate alignment with the probe to be removed, and avoid positional interference between the shielding cylinder and other structural members in the core during the gradual deepening of the shielding cylinder into the core pool, thereby solving the problem of difficult accurate docking in traditional methods, improving the probe removal efficiency and operation safety.

The invention provides an automatic detection system for anti-radiation performance of a lead garment, a lead garment hanger adopts a humanoid structure design and is used for simulating the condition that the lead garment is worn in a human body posture, a plurality of X-ray detectors are arranged on the outer surface of the lead garment hanger and are used for detecting the X-ray penetration position and measuring the X-rays, and the X-ray detector is used for detecting the radiation resistance of the lead garment. The rack guide rail is detachably assembled on a CT operation site and arranged at the bottom of the lead clothes hanger, the lead clothes hanger can reciprocate along the rack guide rail through a first driving motor and can rotate circumferentially through a second driving motor, and the main control module comprises a single chip microcomputer and is used for controlling the lead clothes hanger to move horizontally and rotate. And the X-ray penetration position and the X-ray measurement in the lead clothes are determined through fitting calculation. According to the lead clothes damage detection method, the lead clothes damage detection method during wearing by simulating the human body posture can be realized, the authenticity and reliability of lead clothes damage detection are effectively improved, and unnecessary damage of rays to the human body caused by internal damage of the lead clothes is prevented.

The invention discloses an electromagnetic shielding anti-radiation EVA material and a production process of an EVA film, and belongs to the technical field of high polymer materials. The EVA material provided by the invention is prepared from the following components in parts by weight: 80 to 100 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of polycaprolactone, 3 to 6 parts of polyvinyl alcohol, 8 to 15 parts of carbon fiber intercalated magnesium aluminum hydrotalcite, 2 to 4 parts of boron carbide, 0.2 to 0.6 part of dispersing agent, 0.8 to 1.5 parts of silane coupling agent, 0.1 to 0.3 part of antioxidant and 1.5 to 2.5 parts of plasticizer. The invention also provides a production process of the EVA material and the EVA film. The electromagnetic shielding anti-radiation EVA material provided by the invention has the advantages of simple and easily available raw materials, low cost, excellent mechanical strength, flexibility, high temperature resistance, conductivity, chemical resistance and weather resistance; the transparent conductive EVA film prepared from the EVA material has excellent mechanical strength, elasticity, heat resistance, electromagnetic shielding performance and radiation protection performance, and can be stably applied to the fields with high-frequency requirements, such as electronic components, communication equipment and military industry for a long time.

The invention discloses a rubber glove box protective glove with a latex coating and a manufacturing method. The glove comprises a mould pressing rubber layer and a local latex coating. The mold pressing rubber layer is prepared through mold pressing vulcanization forming and comprises rubber, a shielding component, a reinforcing filler, a filling agent, an active agent, an anti-aging agent, a plasticizer, a lubricating release agent, a vulcanizing agent and an accelerant. The local latex coating is prepared through latex impregnation, and latex components comprise latex, reinforcing filler, a stabilizer, a diffuser, an active agent, an anti-aging agent, a vulcanizing agent, an accelerant, a thickening agent, a defoaming agent and a coloring agent. Through formula design of the mold pressing rubber layer and the local latex coating and optimization of a latex dipping process, the glove box glove with high mechanical hazard protection performance in the local position is obtained on the premise that the ray protection function and wearing comfort are guaranteed, and the service life of the glove box glove is prolonged. And the service life of the glove box protective glove under the radiation and mechanical dual harm scenes is prolonged.