Flame Retardant-Guarding People's Production Property Fire Guards
With the advent of midsummer, the heat and high temperature, electronic and electrical products are easy to cause fires, and a large number of wooden furniture, plastic decorative materials, textiles and so on in the room are also flammable objects. Without the protection of flame retardants, fire hazards will be everywhere. But for most people, "what exactly is a flame retardant" is not what they care about. Because people can't see it at all and have no way of knowing its existence. However, in modern life, flame retardants are almost everywhere. In the mobile phones we carry with us, in the computers on our desks, in the subway we take every day, in the car we drive, and even the mattress that keeps you sleeping every night.
With the advent of midsummer, the heat and high temperature, electronic and electrical products are easy to cause fires, and a large number of wooden furniture, plastic decorative materials, textiles and so on in the room are also flammable objects. If the lackflame retardantprotection, fire hazards will be everywhere.
But for most people, "what exactly is a flame retardant" is not what they care about. Because people can't see it at all and have no way of knowing its existence. However, in modern life, flame retardants are almost everywhere. In the mobile phones we carry with us, the computers on our desks, the subways we take every day, the cars we drive, and even the mattresses that let you sleep soundly every night, thousands of flame retardant molecules are like vigilant little guards, silently guarding your life and property safety, and keeping us away from the threat of fire.
a great variety of large families
As the name implies, flame retardants are chemical additives that can prevent objects from burning. Adding flame retardants to flammable materials can make the materials difficult to ignite when exposed to open flames, or easy to extinguish and not easy to spread after ignition. Flame retardants can also reduce heat and reduce smoke emissions.
Flame retardant is not a simple product, but a large family, family members have 700 to 800 kinds, can be divided into organic flame retardants and inorganic flame retardants, or according to the reaction elements are divided into halogen, phosphorus, nitrogen and silicon, can also be divided into mixed type, additive type and reaction type according to the use method.
The reason why there are so many types of flame retardants is to meet the "taste" of different materials ". Each flame retardant guard has its own best position, they can also be used together, division of labor, excellent to complete the task of fire prevention.
These invisible little guards are active in all aspects of people's lives. They quietly "lurk" in the circuit boards of various electronic appliances such as mobile phones, computers, TVs, refrigerators, etc., and they are also indispensable in the plastic shells of various electronic products. They are also indispensable in the seats of airplanes, ships, buses, and building exterior wall insulation materials. They stick to the figure silently. In developed countries such as Europe and the United States, flame retardants are also widely used in clothing for children, the elderly and patients with limited mobility. China has also issued national standards, which have made clear flame retardant requirements for building materials and decorations, textiles, furniture, wires, switches, lamps and appliances used in public places.
Different flame retardant principle
It is not easy to take up the responsibility of the safety guard to control the fire, and the flame retardant must have excellent skills.
Combustion requires three main elements-combustibles, combustion aids (oxygen) and a source of ignition. The process of combustion is divided into heating, decomposition, fire, burning and spreading. If you remove any of these elements, or find a way to control the combustion process in the embryonic stage of heating and decomposition, you can effectively avoid the occurrence of fire.
In terms of preventing flame combustion, different types of flame retardants have their own tricks: some prevent combustibles from generating combustible gases by absorbing heat; Some form a dense covering layer on the surface of combustibles to isolate combustibles from contacting oxygen. Some capture free radicals involved in the combustion reaction to achieve the purpose of inhibiting the chain reaction of free radicals. The other is to slow down the combustion speed by generating incombustible gas to dilute oxygen.
Inorganic flame retardant Al(OH)3 in the heat up to 200 ℃ will be decomposed, the release of crystal water, crystal water heat evaporation into water vapor. This series of processes will absorb a large amount of heat, reduce the temperature of the material surface and flame zone, and slow down the rate of thermal cracking reaction. In addition, the water vapor produced by the crystal water can also reduce the oxygen concentration, further inhibiting the spread of fire.
Phosphorus flame retardant heated into a more stable structure of the cross-linked solid matter or carbonized layer, like a layer of solid armor, the combustible material wrapped up, both to prevent further pyrolysis of the material, but also to prevent the internal decomposition of the combustible gas overflow to continue burning.
The evaporation temperature of the bromine flame retardant is the same as or similar to the decomposition temperature of the polymer material. When the polymer material is decomposed by heat, the bromine flame retardant will also volatilize and enter the gas phase combustion zone at the same time as the thermal decomposition product. The flame retardant can quickly capture the free radicals in the gas phase combustion zone, inhibit the free radical chain reaction, prevent the flame propagation, and finally slow down the combustion reaction rate until the end.
In short, each flame retardant has its own unique secret.
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
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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