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Main components of aluminum hydroxide filler

Aluminum hydroxide filler is mainly used as flame retardant, papermaking filler, chemical raw materials, etc. Its composition mainly includes alumina, basic hydrated magnesium carbonate and magnesium oxide.

1. Aluminum hydroxide filler exists in the form of magnesite in nature, and its mining process is the same as that of general minerals, including crushing, grinding and grading. It is mainly used in cement, rubber products and paper. Although some natural aluminum hydroxide fillers with a magnesium carbonate content of up to 45% have certain applications in Europe, they are rarely used directly in coatings in North America.
2. Aluminum hydroxide filler is also called light magnesium carbonate. The dolomite ore is calcined, the oxides remaining after removal of CO2 are suspended in water, and then CO2 is introduced to selectively precipitate calcium carbonate. Meanwhile, the aluminum hydroxide filler dissolves magnesium hydroxide to produce an acidic carbonate, the filtrate is heated to precipitate a basic magnesium carbonate, after further heating, CO2 is removed, and the basic hydrous magnesium carbonate is filtered, dried and ground.
Aluminum hydroxide filler can be used as a neutral detergent in rubber, and can also be used in printing inks and coatings. It is calcined with alkaline hydrated magnesium carbonate or crude dolomite ore. It is used in rubber and cement, but rarely in paint.

How to Guarantee the Quality of Aluminum Hydroxide

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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.

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

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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