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Magnesium hydroxide is how to play the role of flame retardant flameout?

With the continuous improvement of people's safety awareness and health awareness, magnesium hydroxide flame retardants have gradually become an indispensable part of our lives. Now countries around the world still regard the development of flame retardants as a task, and they have also achieved certain results. So, magnesium hydroxide flame retardant is how to play the role of flameout? The following small series to introduce to you. Magnesium hydroxide flame retardant, to give flammable polymer flame retardant functional additives, mainly for the flame retardant design of polymer materials; magnesium hydroxide flame retardant has many types, according to the method of use is divided into additive magnesium hydroxide flame retardant and reactive magnesium hydroxide flame retardant. added hydrogen

With the continuous improvement of people's safety awareness and health awareness,Magnesium hydroxideFlame retardants have gradually become an indispensable part of our lives. Now countries around the world still regard the research and development of flame retardants as a task, and they have also achieved certain results. So, magnesium hydroxide flame retardant is how to play the role of flameout? The following small series to introduce to you.
Magnesium hydroxide flame retardant, to give flammable polymer flame retardant functional additives, mainly for the flame retardant design of polymer materials; magnesium hydroxide flame retardant has many types, according to the method of use is divided into additive magnesium hydroxide flame retardant and reactive magnesium hydroxide flame retardant. The additive type magnesium hydroxide flame retardant is added to the polymer through a mechanical mixing method to make the polymer flame retardant. At present, the additive type magnesium hydroxide flame retardant mainly includes organic magnesium hydroxide flame retardant and inorganic magnesium hydroxide flame retardant, halogen-based magnesium hydroxide flame retardant (organic chloride and organic bromide) and non-halogen.
1. Produce a gas that can smoothen the flame. Such as antimony trioxide, it encountered in PVC due to the combustion of HCL when it reacts to produce a smothered gas, that is, antimony nitrogen oxides.
2. Absorbs the heat generated during combustion and plays the role of cooling to slow down the combustion rate. such as aluminum hydroxide,
The proportion of chemically associated water contained in its molecules is as high as 34%. This associated water remains stable at the processing temperature of most plastics, but it begins to decompose when it exceeds 200°C, releasing water vapor. And each decomposition of a gram of aluminum hydroxide, to absorb 36 kilocalories of heat.
3. Provide a layer of oxygen barrier coating. Such as phosphate ester magnesium hydroxide flame retardant combustion generated when the phosphorus compound is oxygen barrier coating.
4. Generate free radicals that can react with plastics and play a flame retardant role. The combustion properties of their reaction products with plastics are extremely poor.
The above is about the principle of magnesium hydroxide flame retardant flameout effect, hoping to help everyone.

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What are the reasons for the failure of flame retardant after adding aluminum hydroxide flame retardant?

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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