In addition to aluminum hydroxide as a flame retardant, what are the uses?
Aluminum hydroxide is the hydroxide of aluminum. Nowadays, the market of aluminum hydroxide is developing faster and faster, and many companies have also put into production. Today, let's introduce the main uses of aluminum hydroxide. The common aluminum hydroxide on the market mainly has two kinds of industrial grade and pharmaceutical grade. Today we will introduce the industrial aluminum hydroxide separately. The main applications of aluminum hydroxide: 1. Used as a flame retardant aluminum hydroxide filler is an ideal, environmentally friendly, and environmentally friendly flame retardant filler for plastics and organic polymers. Because the aluminum hydroxide filler is a pure white powder solid, the particle size can be processed in accordance with the production, non-toxic and harmless, as a filler
Aluminum hydroxide is the hydroxide of aluminum.aluminum hydroxideThe market is developing faster and faster, and many enterprises have also put into production. Today, let's introduce the main uses of aluminum hydroxide. The common aluminum hydroxide on the market mainly has two kinds of industrial grade and pharmaceutical grade. Today we will introduce the industrial aluminum hydroxide separately. The main application of aluminum hydroxide:
1. Used as a flame retardant
Aluminum hydroxide filler is an ideal, environmentally friendly, and environmentally friendly flame retardant filler for plastics and organic polymers. Because the aluminum hydroxide filler is a pure white powder solid, the particle size can be processed in accordance with the production, non-toxic and harmless, as a filler after processing, the whiteness is not easy to change, with filling, flame retardant, smoke three functions. When a plastic or polymer burns in contact with an external heat source, it can be divided into the following stages: heating, decomposition, fire, burning, and spreading. The principle of action of all flame retardants is to achieve the purpose of flame retardancy by inhibiting one or more of the above-mentioned combustion stages.
2. Used as papermaking filler
Aluminum hydroxide filler in the paper industry is mainly used as a surface coating, filler and the production of non-combustible paper. In foreign countries, as early as 40, 50 s began and used aluminum hydroxide filler as a coating pigment, but in our country is still blank. Aluminum hydroxide filler as a coating pigment has many advantages: high whiteness, fine particle size and uniform particle size distribution, a flake shape, using it as a pigment can improve the whiteness of coated paper, opacity, smoothness and ink absorption performance. Using it instead of titanium dioxide, without reducing the whiteness and opacity of the paper, can save costs, improve the gloss of the paper, improve the mimeograph performance.
3. Used as toothpaste material
The main purpose of toothpaste is to remove the dirt attached to the teeth without damaging the gums. This requires a neutral friction agent, and the light friction characteristics of aluminum hydroxide fillers to clean and polish teeth just meet this requirement. And its chemical inertness is that it is proud of other ingredients in toothpaste: in addition, aluminum hydroxide filler has good Baofer performance, therefore, aluminum hydroxide filler is widely used in pharmaceutical toothpaste and high-grade toothpaste oil.
4. Used as chemical raw materials
Because aluminum hydroxide filler is a large-scale production, high purity refined products, can be quickly dissolved in strong acid and alkali. Therefore, aluminum hydroxide filler is an important raw material for many kinds of aluminum salts. Such as alum, polymeric aluminum chloride. In the petrochemical industry, it can also be used to produce forest-free washing powder, catalyst carrier, and other petrochemical industries.
5. Modification of aluminum hydroxide filler
Although aluminum hydroxide filler as a kind of amphoteric hydroxide has strong activity, and as a flame retardant filler in plastics, rubber and other industries have a wide range of applications, but because of its low decomposition temperature, belongs to inorganic flame retardant, can be modified by aluminum hydroxide filler treatment, in order to improve its decomposition temperature and addition amount.
6, used as artificial marble
Filler of artificial agate (handicraft). Production of artificial agate or artificial marble with aluminum hydroxide filler and unsaturated polyester resin or methacrylic resin. Since the aluminum hydroxide filler has a refractive index (refractive index of 1.57) very close to that of the polyester resin, the artificial product has a translucent and satisfactory optical visibility. And can produce different colors. Artificial products with patterns. Compared with natural products, human products have many advantages, such as low cost, light weight, not easy to crack, and can be made into products of various colors and specifications. Therefore, artificial marble is widely used in high-grade sanitary ware, kitchen decoration, conference desktop, plate, decorative board, etc. Generally speaking, the aluminum hydroxide filler used in the production of artificial agate and artificial marble (artificial quartz stone) has the characteristics of high whiteness (<95), good crystal type, and moderate particle size (500 mesh).
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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
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Ministry of Foreign Trade Telephone:13956052398
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