Anti-bee clothing manufacturers below to tell you about some knowledge of chemical protective clothing
Release time:
2022-05-23
Although the performance requirements and test methods in the three standard systems are different, they all stipulate the ability, physical and mechanical properties and comfort of chemical protective clothing to block toxic chemicals. They all include the ability, physical and mechanical properties and comfort of toxic chemicals. For the protection of toxic chemicals, the main consideration is the penetration resistance and penetration resistance of each chemical substance.
Anti-Bee ClothingLet's talk about some knowledge about chemical protective clothing
Anti-Bee ClothingManufacturer: penetration resistance and penetration resistance of chemical protective clothing
Although the performance requirements and test methods in the three standard systems are different, they all stipulate the ability, physical and mechanical properties and comfort of chemical protective clothing to block toxic chemicals, and all include the ability, physical and mechanical properties and comfort of toxic chemicals. For the protection of toxic chemicals, the main consideration is the anti-penetration and anti-penetration of each chemical substance.
Penetration Resistance: Penetration
Penetration refers to the phenomenon of chemical substances passing through the zippers, seams and other gaps of protective clothing when taking protective equipment.
It can be seen that the whole penetration process is visible to the naked eye. Penetration is not only related to the structure of the material, the gap between the fibers, and the lyophilic of the material, but also closely related to the design of the garment, the way of sewing, and the choice of accessories.
penetration resistance: penetration,
Penetration refers to the process in which chemical substances are dissolved in protective clothing materials or chemical substances penetrate protective clothing materials through molecular movement, that is, molecules are first adsorbed on the interface, and then reach the other side of the substance through molecular movement, and then released through desorption.
Different from penetration, there is no obvious sign of chemical penetration in many cases, because the molecular size of droplets and chemical substances is very different, and the surface pore size of materials through which droplets cannot pass is easy for molecules, so materials with good penetration resistance may not have good penetration resistance. Class A chemicals have good anti-seepage performance, while Class B chemicals may be poor. In addition, the structure of the material itself is also an important factor determining the impermeability, due to the limited breathability of the single-layer structure, some protective fabrics use a multi-layer protective film structure.
Anti-Bee ClothingManufacturer: Air tightness of chemical protective clothing of different materials at different temperatures
The results show that the air tightness of chemical protective clothing treated in high temperature environment is poor, which may be due to the addition of special additives in chemical protective clothing, which leads to the reduction of the melting point of the material. The surface treatment of chemical protective clothing usually uses antistatic agents with a content of less than 1%, which may reduce the melting point of chemical protective clothing and lead to changes in material properties under high temperature environment.
After polyethylene chemical protective clothing is treated at 10-25 degrees, the air tightness performance first decreases and then increases, and the change is relatively small. After 25-50 degrees, the air tightness decreases obviously, and the degree of influence increases with the increase of temperature. The inflection point is 25. The air tightness performance of propylene and chlorobutyl rubber chemical protective clothing first increases and then decreases at 10-50 degrees, and decreases sharply at 25-50 degrees.
The failure temperature of polyethylene chemical protective clothing is 66 degrees, and the failure temperature of propylene and chlorinated butyl rubber chemical protective clothing is 50 degrees.
Anti-bee clothing manufacturer: Well, the editor will not explain too much. If you need anti-bee clothing, chemical protective clothing or fire protection clothing, you can consult our company.
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Anti-Bee Clothing
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