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What is the application of magnesium hydroxide in sewage treatment

What is the application of magnesium hydroxide in sewage treatment

Magnesium hydroxide as an alkali has a unique buffer and neutralization capacity, in the use of the process of pH value will not exceed 9, the neutralization process is gentle, the precipitation grain is large, the sedimentation speed is fast, the silt is easy to filter and discharge, thus reducing the volume of silt, reduce the processing cost. And it has strong adsorption capacity, high activity and low corrosion. These advantages make magnesium hydroxide in such as papermaking, printing and dyeing, leather, electroplating, urban sewage and fluoride containing acid wastewater treatment can be widely used, as a professional manufacturer of magnesium hydroxide, the following will introduce the application of magnesium hydroxide in sewage treatment. 1,

24

2019

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06

What are the product details of magnesium hydroxide flame retardant?

What are the product details of magnesium hydroxide flame retardant?

Magnesium hydroxide is a new type of filled flame retardant. It can reduce the surface temperature of the filled synthetic material in the flame by releasing bound water and absorbing a large amount of latent heat when it is decomposed by heat, which can inhibit the decomposition of polymer and cool the combustible gas. As a professional magnesium hydroxide flame retardant manufacturer, today we will introduce the product details of magnesium hydroxide flame retardant. I hope our introduction will be helpful to you. (1) model particle size (μm) mesh whiteness Mg(OH)2 purity (2)ZR105 ≤ 25000 ≥ 92 ≥ 94 (3) this model can

20

2019

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06

What are the effects of magnesium hydroxide flame retardants?

What are the effects of magnesium hydroxide flame retardants?

The flame retardant effect of magnesium hydroxide flame retardant is to prevent or inhibit the speed of physical or chemical changes in the combustion process of polymer materials. The following will introduce the flame retardant effect of magnesium hydroxide flame retardant in detail. 1, the endothermic effect of its role is to make the temperature rise of polymer materials difficult, for example, borax has 10 molecules of crystal water, due to the release of crystal water to capture 141.8kJ/mol heat, because of its endothermic and the temperature rise of the material is inhibited, resulting in flame retardant effect. The flame retardant effect of hydrated alumina is also due to its thermal dehydration to produce endothermic effect. In addition, some heat

14

2019

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06

Flame retardant manufacturers-what are the advantages of using flame retardant masterbatch?

Flame retardant manufacturers-what are the advantages of using flame retardant masterbatch?

Due to the flame retardant masterbatch (masterbatch) used in plastics in flame retardant efficiency, environmental protection, improve production efficiency, convenience and many other advantages, it has become an effective substitute for traditional flame retardants and has been widely used in plastic granulation, extrusion, injection molding and other aspects according to the customer type can be divided into functional flame retardant masterbatch and functional flame retardant masterbatch. The effect of flame retardant masterbatch is also called modified plastic factory with flame retardant masterbatch. Flame retardant manufacturers summarize the following advantages of using flame retardant masterbatch: 1. reduce costs with the progress of science and technology, the continuous development of carrier plastics and equipment, high concentration, high dispersion, high compatibility is possible, a small amount of carrier is not

05

2019

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06

Comparison of two ways of surface modification of aluminum hydroxide

Comparison of two ways of surface modification of aluminum hydroxide

Aluminum hydroxide powder has multiple functions such as flame retardant, smoke suppression, and filling. It can produce synergistic flame retardant effect with various substances such as phosphorus. It is a widely used chemical product and has become an important environmentally friendly flame retardant in electronics, chemicals, cables, plastics, and rubber. Aluminum hydroxide is a filled inorganic flame retardant. In order to achieve a better flame retardant effect, the filling amount needs to be 40%, even as high as 60%, but the high filling amount not only seriously affects the mechanical properties of the product, but also makes the extrusion and processing performance worse. Therefore, in order to make the aluminum hydroxide powder more widely used in flame retardant materials such as polyolefin, it is necessary to carry out surface modification. Objective

28

2019

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05

PP flame retardant characteristics and process you know?

PP flame retardant characteristics and process you know?

PP flame retardant is made of imported materials, is a new type of high efficiency containing Br (bromine), P (phosphorus) N (nitrogen) and other elements of the reaction type flame retardant. PP high efficiency flame retardant PP high efficiency flame retardant is made of imported materials, is a new type of high efficiency containing Br (bromine), P (phosphorus) N (nitrogen) and other elements of the reaction type flame retardant. Compared with the traditional added brominated flame retardants (decabromodiphenyl ether, tetrabromobisphenol A, octabromo ether, octabromo bis S ether, TBC, etc.), the addition amount is small, the flame retardant effect is good, no need to add antimony trioxide, and the bromine content is low (in the modified products, a few

14

2019

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05

Magnesium hydroxide shows excellent flame retardant effect in application

Magnesium hydroxide shows excellent flame retardant effect in application

When heated, magnesium hydroxide will decompose and absorb the heat on the surface of the combustion substance to flame retardant effect. At the same time, a large amount of water is released to dilute the oxygen on the surface of the combustion substance. The active magnesium oxide generated by decomposition adheres to the surface of the combustion substance and further prevents the combustion. Magnesium hydroxide is a new type of filled flame retardant. It can reduce the surface temperature of the filled synthetic material in the flame by releasing bound water and absorbing a large amount of latent heat when it is decomposed by heat, which can inhibit the decomposition of polymer and cool the combustible gas. Magnesium oxide produced by the thermal decomposition of magnesium hydroxide is a good refractory material and can also help improve the synthesis.

13

2019

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05

Flame retardant through what mechanism to achieve the purpose of flame retardant?

Flame retardant through what mechanism to achieve the purpose of flame retardant?

Flame retardants exert their flame retardant effects through several mechanisms, such as endothermic effect, covering effect, inhibition of chain reaction, and asphyxiation of non-combustible gases. Most flame retardants achieve the purpose of flame retardancy through the joint action of several mechanisms. 1. The heat released by any combustion in a relatively short period of time is limited. If a part of the heat released by the fire source can be absorbed in a relatively short period of time, the flame temperature will be reduced, and the heat radiated to the combustion surface and acting on the cracking of combustible molecules that have been vaporized into free radicals will be reduced, and the combustion reaction will be suppressed to a certain extent. Under high temperature conditions, the flame retardant has a strong endothermic

09

2019

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05

What are the requirements for the storage of magnesium hydroxide?

What are the requirements for the storage of magnesium hydroxide?

Magnesium hydroxide alias caustic magnesite, light burned magnesia, etc., is a white powder material, is also a new type of filling type flame retardant. By releasing bound water during thermal decomposition and absorbing a large amount of latent heat, the surface temperature of the synthetic material filled with it in the flame is reduced, which has the effect of inhibiting the decomposition of the polymer and cooling the combustible gas generated. However, magnesium hydroxide has certain requirements during storage. The following is a brief introduction to how magnesium hydroxide should be stored. 1. The environment is relatively basic. It is necessary to adhere to the monotony and ventilation of the storage environment, together with the need to lay a layer of plastic film between the product and the ground.

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2019

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04

Analysis of Advantages and Disadvantages of Magnesium Hydroxide in Flame Retardant Application

Analysis of Advantages and Disadvantages of Magnesium Hydroxide in Flame Retardant Application

Flame retardant is an additive that can make the polymer not easy to catch fire, and the fire makes it slow after burning. According to the classification of the elements contained in the flame retardant, it can be divided into organic and inorganic flame retardants. Organic flame retardants can be divided into flame retardants, halogen flame retardants (including chlorine and bromine) and nitrogen flame retardants; inorganic flame retardants include antimony compounds, phosphorus and phosphoric acid, boron compounds, magnesium hydroxide, zirconium compounds and bismuth compounds. With the development of science and technology and the improvement of people's awareness of environmental protection, the research and application of flame retardants in today's world is moving in the direction of non-halogenated. Representative of the application of inorganic flame retardants with aluminum hydroxide and magnesium hydroxide, is endothermic and exothermic by chemical decomposition

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2019

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Hefei Zhongke Flame Retardant New Material Co., Ltd

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