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Just follow the rules and regulations.
The irradiation crosslinking process will not affect the human body.
Cross-linking technology refers to the use of cross-linking techniques by chemical means, such as the addition of cross-linking agents.
or physical methods (e.g., irradiation) to achieve cross-linking reactions of macromolecules so that linear polymers become three-dimensional spaces.
Network structure polymer technology. Combined with irradiation crosslinking technology and flame retardant technology, the prepared cable material has excellent flame retardancy, high heat resistance, and excellent physical and mechanical properties. The charring properties of polymers can be improved by irradiation crosslinking, which in turn improves their flame retardancy.
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Irradiation cross-linking refers to the cross-linking change of material structure in the process of irradiation modification, which corresponds to irradiation degradation. The landlord wants to ask whether there will be an impact on human health during the irradiation treatment process or irradiation cross-linked products. As long as it is operated in accordance with the rules and regulations, the irradiation crosslinking process will not have an impact on the human body.
In addition, whether it is treated with an electron accelerator or with radioactive elements such as cobalt 60, the state is strictly controlled, so the safety and insurance factors of both are very high, and irradiation cross-linking products can be used with confidence, such as irradiated wires and cables, heat shrinkable materials, IXPE foam materials, etc.
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High-energy electron beam irradiation equipment generally needs to have protective isolation equipment. At present, such as the production of wires with ultraviolet LED irradiation crosslinking, the ultraviolet lamp is 360 degrees aligned with the center point irradiation, which has no effect on the human body at all.
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The irradiation crosslinking process, as long as it is carried out according to the operating procedures, will not have an impact on human health. Irradiation cross-linked products are not harmful to the human body.
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You must wear a dose measuring device when entering the equipment room, and there is generally no harm if you do not exceed the dose, but for the sake of insurance, those who are not married should go to that kind of place less.
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The United States has unlimited light irradiation fireproof wires.
Long service life (minimum 70 years and maximum years).
2.Strong overload capacity (short-term overload is twice that of ordinary wires).
3.The current carrying capacity is large (increased by 15%-50%)
4.High insulation resistance (water molecule content in the insulation layer is less than 100ppm)5Environmental protection and safety (polyolefin material, combustion will not produce toxic gas, corrosion resistance) 6Continuous burning for more than 9 hours without interruption of electricity.
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Radiation cross-linked polyethylene foam plastic, also known as ixpe, is polyethylene as the main raw material, with several other auxiliary materials that do not contain any harmful substances, first mixed extrusion molding, through green and healthy irradiation processing technology, the use of ionic radiation to act on the cross-linking of the substance to change the original structure of the base material, the formation of a network of independent closed-cell cell structure, Huzhou Changyuan specially produced high-tech high-grade closed-cell foam material. Such products have the advantages of smooth appearance, comfortable hand feel, and good processing performance. Its bubble cells are fine and uniform, strong and flexible, excellent sound insulation, heat insulation, heat preservation effect, small water absorption, resilience, weather resistance, aging resistance, mildew resistance and corrosion resistance to various chemicals and other functional materials that meet international environmental protection standards.
1. Environmental protection and non-toxicity: Ionization radiation changes the structure of the base material to form a network of independent closed-cell structure, no additives, no heating, no chemical residues, and can be refined.
2. Moisture-proof and antibacterial: independent closed-cell structure, tightly and effectively prevent the penetration of water molecules, so that the water absorption rate is lower than (almost zero), and at the same time, due to the irradiation modification of the electron beam, the bacteria have no living environment.
3. Silent seismic resistance: independent closed-cell structure, with good sound damping, resilience, impact resistance, permanent compression rate of less than 5%.
4. Thermal insulation: ultra-low thermal conductivity (less than, can effectively block heat or cold air from losing through the ground.
5. Anti-corrosion and aging resistance: Due to the strong compactness of the binder polyethylene, after irradiation cross-linking treatment, the product has strong corrosion resistance and the service life is increased by more than 30%.
6. Ease of processing: smooth appearance, comfortable feel, fine and uniform bubble holes, strong and flexible, easy to secondary processing (easy to compound, paste, cutting, punching, hot pressing, hot pressing molding, etc.).
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This foamed plastic is toxic and emits toxic gases when it is spread under the floor for heating, which can cause illness when inhaled.
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IXPE foam, the full name of electronic radiation cross-linked polyethylene foam, is polyethylene as the main raw material, with several other excipients that do not contain any harmful substances, first mixed extrusion molding, through green health irradiation processing technology, the use of electric ion radiation on the substance to produce cross-linking to change the original structure of the base material, the formation of a network of independent closed-cell cell structure, the production of high-tech high-grade closed-cell foam materials. The products are widely used in floor mats, tapes, pipe insulation, vehicle and ship interiors, medical treatment, sports and leisure, packaging and other fields.
Product features:
Healthy and environmentally friendly ionization radiation changes the structure of the base material to form a network of independent closed-cell structure, no additives, no heating, no chemical residues, and can be refined. Moisture-proof and antibacterial independent closed-cell structure, tightly and effectively prevent the penetration of water molecules, so that the water absorption rate is lower than almost zero), at the same time, due to the irradiation modification of the electron beam, the surface antibacterial treatment, so that bacteria have no living environment.
Anti-corrosion and anti-aging base material polyethylene itself has strong compactness, and after irradiation cross-linking treatment, the product has strong corrosion resistance and resistance to various chemical corrosion.
It is easy to process with smooth appearance, comfortable feel, fine and uniform bubble holes, strong and flexible, and convenient for secondary processing (easy compounding, pasting, cutting, punching, hot pressing, hot suction molding, etc.).
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Irradiation is a special industry, usually work in the need to contact irradiation equipment more opportunities, and usually hear more about the radiation hazard news, so just engaged in irradiation industry work people inevitably have concerns, in fact, as long as according to the rules and regulations, do not operate in violation of regulations, radiation hazards basically do not exist. It's like a brother or electricity, you don't have to touch it with your hands, it's safe, and the irradiation industry is the same, as long as you know about it, it's not as scary as it is rumored. I have met a lot of old-timers in the irradiation industry, who have been working for decades and are all old.
At the age of 60 or 70, his body is still very healthy, no different from ordinary people.
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After the irradiated wire is still a wire, after the wire is energized, you go to touch the conductive copper core, of course, there will be danger, if the voltage is high enough (such as higher than 90 volts), maybe people will be electrocuted!!
In addition, what do you mean by "Are irradiated wires harmful to the body"? Does it refer to the rays used to irradiate electrical wires? That is to say, the question should be asked: "Is the irradiation method used to irradiate the wire harmful to the health of the operator engaged in irradiation?" ”。
In this regard, I would like to say: 1) To be clear, rays are everywhere, and people are in the ray field at any time, which is equivalent to saying that people are always receiving the harm of various rays, such as the electromagnetic field of mobile phones. 2) High-energy rays are often used to irradiate wires, such as accelerator electron beams of 1-5 meV.
These high-energy rays are absolutely harmful to living organisms such as the human body. 3) However, the irradiation device uses a reinforced concrete wall with a thickness of more than 1 meter to isolate the radiation restriction within the scope of the irradiation room, and has no impact on the operator, or the possible impact is minimal.
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Yes, there are radioactive metallic elements.
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If it is necessary then, adopt me....
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There is a certain impact, but it depends on the specific working environment and protective measures.
The human body is exposed to alternating electromagnetic fields or microwave, ultraviolet, and X-rays, and a certain dose will produce radiation hazards. According to the different radiation energy and the action on atoms or molecules (ionization or not), it is divided into two categories: ionizing radiation (radiation that can ionize molecules or atoms, such as particles, particles, rays, X-rays and neutrons) and non-ionizing radiation (radiation that cannot ionize molecules or atoms, such as radio frequency electromagnetic waves (including microwaves), ultraviolet rays, infrared rays and visible light (including lasers).
Radiation is mainly used for processing (metal heat treatment, high-frequency medium heating, workpiece processing, etc.), chemical reaction processes (radiation polymerization, radiation cross-linking, radiation grafting, etc.), measurement and control (radio detection, non-destructive testing, isotope tracing, etc.), making products (permanent luminescent materials, etc.), medical treatment (diagnosis, metallurgy, etc.) and scientific research.
The process of alternating electromagnetic field propagating in space at a certain speed is electromagnetic radiation, and electromagnetic waves with frequencies between 100kHz and 300kmhz and corresponding wavelengths of 3000m to 1mm are called radio frequency electromagnetic waves. This kind of radiation hazard is manifested in two aspects: one is the thermogenic effect, which polarizes the dielectric molecules in the human body, changes alternately with the radio frequency electromagnetic field, oscillates and heats, and the body temperature rises significantly; The second is the non-thermogenic effect, which can cause dysfunction of the central nervous system and autonomic nerves. Manifested as neurasthenia, abnormal electrocardiogram and electroencephalogram, headache, dizziness, excitement, insomnia, drowsiness, palpitations, memory loss, etc.; UHF can cause stomach dysfunction.
Microwave (electromagnetic waves with a frequency of 300MHz to 300kmhz and a corresponding wavelength of 1m to 1mm, mainly used in radar, communications, television, poor conductor heating, medical treatment, nuclear physics, scientific research, etc.) can also cause low visual and olfactory function, and long-term, high-intensity radiation can cause opacity of the eye lens and cataract, which has a certain impact on reproductive function, endocrine function, immune function, etc.
The RF radiation intensity in the workplace decreases rapidly with the increase of distance from the radiation source, and the microwave has strong directionality.
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Low frequencies have a greater impact than high frequencies. Water molecules and air absorb high frequencies greatly, so the penetration of high frequencies is not deep. low frequencies, such as microwave oven frequencies) and X-Band (8-12GHz) burns will be high.
Men should be careful, the liquids that are used to reproduce offspring are said to be good absorbers. I heard from the old man that during the work, many radar soldiers could not give birth or had mutated offspring. Note that it is during work, and it may be fortunate that those liquids are renewed quickly.
It's important to get the timing right.
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Generally, electron irradiation accelerators produce electron energies of several megaelectron volts (MEV). When high-energy electrons interact with matter, they can excite and ionize the outer electrons of material atoms, which is the same for the human body, so people engaged in electron irradiation production cannot be directly irradiated. The electron-irradiated material can also produce ionization, some small molecules and atomic ions of the material will also run out, and air molecules will also be ionized, so the ventilation and ventilation time of the irradiation room should be required.
When high-energy electrons are blocked by matter, especially heavy metals, their velocity decreases and their energy is released in the form of X-rays. The X-ray does not penetrate at a high depth, and the protective wall of the accelerator acts as a block.
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Irradiation line is the use of irradiation to make the long linear macromolecules between polymer materials through a certain form of chemical bond connection to form a network structure, which can greatly enhance the binding force between polymers, and then enhance the thermal stability, flame retardancy, chemical stability, drip resistance, strength and stress crack resistance of the material. There can be a variety of irradiation methods, such as X-rays, high-speed electron flow, etc., the corresponding materials are mainly XLPE and XLPVC, and the main application fields are building wiring, automotive wires, heat-resistant electronic wires and military fields
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Radiation is harmful to the human body, and long-term exposure to high levels of radiation can affect people's body functions.
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Hehe! It should be harmful! Be careful!
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After irradiation, polymer materials such as polyolefins make the original chaotic molecules arranged into a network structure, which greatly improves the stability of the material, especially the heat resistance.
Compared with the cable of the silane crosslinking process, the heat resistance of the irradiated cross-linked cable is higher, and it can achieve !
However, for high-voltage cables with a voltage level of 10kV or more (excluding 10kV), due to the thick insulation layer, irradiation has the weakness of not being easy to illuminate. Therefore, the irradiation crosslinking process is limited to cables of 10 kV and below.
High-voltage cables over 10kV are still chemically dry crosslinked.
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Peroxide XLPE insulated power cable has the following defects:
The equipment is too large, and it is difficult to operate and maintain.
The length of a single cable is limited, and scorch is a problem.
Cable insulation is prone to defects. The thermal decomposition of peroxide DCP produces gases such as methane, the presence of bubbles in insulation, etc.
The number of annexes is large.
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Crosslinkers. The amount added during irradiation crosslinking is. The use of crosslinkers saves the irradiation dose.
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The crosslinker or epichlorohydrin is allowed to enter the starch molecule, which is conducive to the reaction.
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