Asphalt flame retardants: a mixture of three common flame retardants
Asphalt flame retardants: a mixture of three common flame retardants to obtain a synergistic effect of flame retardancy. Most flame retardants can play their role in a variety of courses, using hybrid systems. Mixed systems are often used in industry to achieve synergistic effects. Three Common Mixtures of Flame Retardant Manufacturers Flame Retardant 1, Compounds Containing Halogen and Phosphorus Phosphorus-containing Impedance Agent, which can be changed into phosphoric acid, metaphosphoric acid and polyphosphoric acid under the action of high temperature and oxidant. Play the role of dehydration and carbonization of oxygen-containing polymers, thus forming a coking protective layer on the surface and isolating oxygen and combustibles. This is a process of resistance. When mixed with halogen-containing compounds, it can
asphalt flame retardantThree common mixtures of flame retardants
A synergistic effect of flame retardancy was obtained. Most flame retardants can play their role in a variety of courses, using hybrid systems. Mixed systems are often used in industry to achieve synergistic effects.
Flame retardant manufacturers
Three Common Mixtures of Flame Retardants
1. Compounds containing halogen and phosphorus
Phosphorus-containing inhibitor can be changed into phosphoric acid, metaphosphoric acid and polyphosphoric acid under the action of high temperature and oxidant. Play the role of dehydration and carbonization of oxygen-containing polymers, thus forming a coking protective layer on the surface and isolating oxygen and combustibles. This is a process of resisting tenderness. When mixed with halogen-containing compounds, it can form two compounds containing phosphorus and halogen. Such as PBr3,PBrs,POBr, etc., this kind of halide has a large specific gravity and can cover the flame surface, play the role of oxygen barrier and dilute the tender substance. At the same time, it is easier to interact with active OH than HBr, so it has stronger free radical capture efficiency than HX alone.
2. Halide and antimony trioxide mixture
Sb,O itself has no resistance to withdrawal, because its melting temperature is higher than the ignition temperature of most polymers, even according to the coating process, it cannot provide fire prevention. When used in combination with halides, a series of reactions can occur to form the antimony halide SbCI3. Antimony oxychloride SbOCI these substances are gaseous at the ignition temperature and enter the burning layer and flame layer, which can dilute the concentration of tenderable gas and participate in capturing H and HO. A free radical of equal activity. In addition, the solid phase is also similar to the role of phosphoric acid to promote carbonization.
3. Borides and other mixtures
Boron and its derivatives have the characteristic of easy melting, that is, easy to form a protective layer when melted. For example, boric acid and metaboric acid melt at 170-250°C, and most polymers are not suspected at this temperature, so they can be effectively used as flame retardants. Zinc and calcium acid are commonly used in industry to make fire retardant coatings, but its high hygroscopicity limits its application.
High molecular weight organoborate compounds, recommend have been reported as flame retardants, with better compatibility and low extractability. To be further developed and studied.
Real-time information
Zhongke Flame Retardant Organization Watches 20 Closing Ceremonies
On the morning of October 22, 2022, members of Zhongke Flame Retardant New Materials Co., Ltd. watched the closing ceremony of the 20th Congress under the leadership of General Manager Wang Ligui.
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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