How is ultrafine aluminum hydroxide affected by humidity?
In industrial production, ultrafine aluminum hydroxide flame retardant is one of the main flame retardant materials, and it is also an environmentally friendly, non-toxic flame retardant material. It is usually used in cables and wires to play the role of insulation and flame retardant. Now let's talk about the effect of aluminum hydroxide flame retardant on humidity.
In industrial production, ultrafinealuminum hydroxideFlame retardant is one of the main flame retardant materials, and it is also an environmentally friendly, non-toxic flame retardant material. It is usually used in cables and wires to play the role of insulation and flame retardant. Now let's talk about the effect of aluminum hydroxide flame retardant on humidity.
Generally, flame retardancy is not less than a certain value. If the flame retardant value is too low, the leakage current along the wires and cables will inevitably increase, thereby wasting electric energy, and at the same time the electric energy becomes heat energy, which creates conditions for thermal breakdown and increases the possibility of thermal breakdown.
2. In the DC cable flame retardant, stepwise flame retardant materials composed of materials with different resistivity can also be used to improve the utilization rate of materials. For cable flame retardants, it is also very important to increase the surface resistivity. When there is dust and moisture on the surface, due to its uneven distribution, some surfaces may be subjected to higher voltages, resulting in partial discharge or creep discharge, resulting in serious failure.
3. But sometimes it will artificially reduce the surface resistance, such as the conductive core of the cable, because the surface is not completely smooth due to the uneven distribution of the electric field, so the high electric field strength will cause corona discharge, so that the surface of the conductive core will be covered. After using conductive rubber or semiconductor plastic, the electric field strength of the core surface will be reduced to eliminate corona, and the moisture content of the material can be judged according to the change of the resistivity of the flame retardant material.
4. Because the small conductance is large, and the size of water molecules is much smaller than that of polymers. Under the action of heat, the polymer macromolecules and the constituent links move relative to each other, and water molecules easily penetrate into the polymer and polymerize. The increase of conductive ions in the object reduces the flame retardancy.
The above is an introduction to the influence of aluminum hydroxide fuel agent on humidity. It helps us to better understand its performance and help future use.
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Everyone knows that there are two common flame retardants. Today we are going to talk about only one of them. Aluminum hydroxide flame retardant is an environmentally friendly halogen-free flame retardant, which can be widely used in fabrics, wood, plastics, and rubber., Polyurethane and other industries have ideal flame retardant effect. In the process of industrial application, it is found that flame retardant failure occurs when aluminum hydroxide flame retardant is added. The following are the reasons for the failure of aluminum hydroxide flame retardant, how to prevent it, how to deal with the operation, and restore the original function.
As a flame retardant, magnesium hydroxide also need to improve what aspects?
When it comes to flame retardants, everyone is familiar with them. Although we usually have less contact with them, we can know what they are used for from the name. Have to talk about magnesium hydroxide, we all know that its main presentation state is a granular, at present, the market sales of magnesium hydroxide particle size is larger, part of the commodity particle size up to tens of microns, immediately used as a flame retardant, poor dispersion, the physical properties of raw materials greater harm. In industrial production, physical grinding methods are generally used to reduce the particle size to 1 micron. The surface of magnesium hydroxide has high polarity and is easy to agglomerate. As the compatibility of refractory materials and polymer substrates, it not only reduces its flame retardant grade, but also causes more serious harm to the physical properties of raw materials.
Hefei Zhongke Flame Retardant New Material Co., Ltd
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Ministry of Foreign Trade Telephone:13956052398
Comprehensive department Telephone:0551-67712199
Company headquarters address: Hefei Feidong Economic Development Zone Xianghe Road 36
E-mail:hefei@zkxcl.com
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