What is the role of asphalt flame retardant?
In recent decades, with the continuous progress of science and technology in China, asphalt as a basic construction raw material, its application technology and application fields are also in constant development. However, the flammability of asphalt itself makes it easy to be ignited at high temperatures, and combustion will be accompanied by a large amount of smoke and heat, which is extremely dangerous. Therefore, it is necessary to use asphalt flame retardants. So what is the role of asphalt flame retardant? Role one: endothermic asphalt flame retardant can occur under high temperature conditions a strong endothermic reaction, and absorb some of the heat released from combustion, thus reducing the temperature of the combustible surface, inhibiting the formation of flammable gases, and ultimately
In recent decades, with the continuous progress of science and technology in China, asphalt as a basic construction raw material, its application technology and application fields are also in constant development. However, the flammability of asphalt itself makes it easy to be ignited at high temperatures, and combustion will be accompanied by a large amount of smoke and heat, which is extremely dangerous. Therefore, it is necessary to use asphalt flame retardants. So...asphalt flame retardantWhat's the effect?
Role one: endothermic
Asphalt flame retardant can have a strong endothermic reaction under high temperature conditions, and absorb some of the heat released by combustion, thereby reducing the temperature of the surface of the combustible material, inhibiting the generation of flammable gases, and ultimately achieving the purpose of flame retardant and preventing The spread of combustion.
Role two: cover
In the case of high temperature, asphalt flame retardant can form a stable foam coating or glass, isolated from the contact with the air, to achieve the purpose of oxygen insulation, heat insulation, prevent the purpose of flammable gas overflow, and then play the role of flame retardant.
Role three: otherwise the gas suffocation
When the asphalt flame retardant is heated, it will decompose other gases such as CO2, CI, NH2, HBr, etc. These gases can effectively dilute the combustible gas decomposed from the combustible material and reduce the concentration of the combustible gas to below combustion. At the same time, it can also effectively dilute the oxygen concentration in the combustion zone, prevent the combustion from continuing, and then achieve the purpose of flame retardant.
Role four: inhibition of chain reaction
From the analysis of combustion chain reaction theory, what is needed to maintain combustion is free radicals. The halogen-introduced asphalt flame retardant can effectively capture the free radicals in the combustion reaction and can act on the gas phase combustion zone. The flame density in the combustion zone is reduced, the flame propagation is prevented, and the speed of the combustion reaction is finally reduced until the end of the combustion, so as to achieve the purpose of flame retardant.
Real-time information
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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
Sales Department Telephone:15905609730
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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