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Flame retardants bring us the safety and reliability of electrical appliances.

Flame retardants bring us the safety and reliability of electrical appliances.

05

2019

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08

Prospect and Development Direction of Halogen-free Flame Retardant

Prospect and Development Direction of Halogen-free Flame Retardant

Halogen-free flame retardant nylon is the addition of flame retardants in the content of very low or no halogen elements of bromine and chlorine. Halogen-free flame retardant nylon products have excellent flame retardant performance, the flame retardant level reaches UL94V0 level, with low precipitation, anti-dripping, high electrical performance and excellent heat resistance, high CTI value, good electrical performance, high impact strength, environmentally friendly, environmentally friendly, suitable for electrical connectors. The flame retardant properties of the composites were improved by adding brominated flame retardants or halogen-free flame retardants in line with European ROHS standards. This granular nylon can withstand a processing temperature of 260°C. In our use of halogen-free flame retardant nylon granular materials

02

2019

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08

What are the chemical properties of magnesium hydroxide?

What are the chemical properties of magnesium hydroxide?

The chemical properties of magnesium hydroxide are: white crystals or powder. The aqueous solution is alkaline. 2.36g/cm3. Soluble in dilute acid and ammonium salt solution, basically insoluble in water and alcohol. The solubility in water (18°C) is 0.0009g/100g. Easy to absorb carbon dioxide in the air. When heated to above 200 ° C in an alkaline solution, it becomes a hexagonal crystal system. Decomposition at 350°C to form magnesium oxide and water. Above 500 ℃, the loss of water is transformed into magnesium oxide. Magnesium carbonate in boiling water can be converted into magnesium hydroxide, which is less soluble. Magnesium hydroxide is commonly used in PE,PP,PVC,ABS,PS,H

31

2019

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07

What are the applications of aluminum hydroxide in polymer materials?

What are the applications of aluminum hydroxide in polymer materials?

When talking about aluminum hydroxide, the first impression is used as a flame retardant material, but aluminum hydroxide is also commonly used in polymer materials. Let us understand together: 1. Metal oxide ATH can have a synergistic effect with many metal aluminas. It has been reported in the literature that ATH can have a synergistic effect with Ni, Zn, Mn, Zr, Sb, Fe and Ti oxides. Among them, Fe, Sb oxide to improve the flame retardant efficiency and dispersion effect is more prominent. 2. Alkaline earth metal hydroxide Alkaline earth metal hydroxide mainly refers to Mg(OH)2. The decomposition temperature of ATH is 200 ℃,M

29

2019

/

07

Safety precautions in the use of flame retardants can not be forgotten

Safety precautions in the use of flame retardants can not be forgotten

There are many kinds of flame retardants. Some flame retardants may have safety problems if they are used incorrectly, such as red phosphorus flame retardants. So, how can we do to protect their own security? According to these questions, please be sure to pay attention to the following requirements. Comprehensive toxicity assessment of flame retardants suspected to be harmful to human health and the environment, and strict control of their production, use and acceptance. Once it is confirmed that it is not suitable for use, production and sales will be stopped. For example, tri (dibromopropyl) phosphate was once a widely used and very effective halogen-free flame retardant, but was later found to be carcinogenic.

26

2019

/

07

Do you know the method of storing magnesium hydroxide in the warehouse?

Do you know the method of storing magnesium hydroxide in the warehouse?

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

24

2019

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07

Analysis of Thermal Flame Retardant Effect of Aluminum Hydroxide

Analysis of Thermal Flame Retardant Effect of Aluminum Hydroxide

Aluminum hydroxide flame retardant is one of the main flame retardant materials in industrial production, and it is the most environmentally friendly and non-toxic flame retardant material. Cable wire is often used as aluminum hydroxide flame retardant to play the role of insulation and flame retardant. Generally, flame retardant is not less than a certain value. If the flame retardant value is too low, the leakage current along the wire and cable line will inevitably increase, resulting in a waste of electrical energy, while electrical energy becomes heat energy, preparing conditions for thermal breakdown, increasing the possibility of thermal breakdown. In the DC cable flame retardant, can also use different resistance coefficient of the material group component stage flame retardant, in order to improve the utilization of materials, improve the surface resistance coefficient of electricity.

22

2019

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07

Six Flame Retardant Effects of Flame Retardant

Six Flame Retardant Effects of Flame Retardant

The main reason why the flame retardant plays a flame retardant role is that it can prevent or inhibit its physical change or oxidation reaction during the combustion of the polymer. Compounds capable of having one or more of the following flame retardant effects can be used as flame retardants. 1. The heat-absorbing effect compound decomposes or releases crystal water or dehydration, and the temperature rise of the material is inhibited due to its heat absorption, thus producing flame retardant effect, which is called endothermic effect. Such as borax, aluminum hydroxide, calcium carbonate and so on and thus play a flame retardant effect. 2. Covering effect (insulation effect) flame retardants at higher temperatures to form a stable coating or decomposition to form a foam-like substance

19

2019

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07

Analysis of the Advantages and Disadvantages of Four Different Cable Flame Retardants

Analysis of the Advantages and Disadvantages of Four Different Cable Flame Retardants

The advantages and disadvantages of the four commonly used cable flame retardants are compared. We can learn more about them. Antimony flame retardant advantages: antimony trioxide can not be used as a flame retardant alone, but can be used in combination with appropriate halogen compounds to play a particularly effective flame retardant performance. Antimony flame retardant synergistic organic mechanism. Disadvantages: heavy metals, toxic, and arsenic homologs, crude products generally contain arsenic and other heavy metals, arsenic trioxide is arsenic. Can not be used as green filler and green flame retardant. 2 Aluminum hydroxide flame retardant advantages: low price, good flame retardancy. Disadvantages: poor heat resistance, dehydration starts at 200 ℃

17

2019

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07

Introduction to the wide application of magnesium hydroxide in the world

Introduction to the wide application of magnesium hydroxide in the world

Now the use of magnesium hydroxide is global, the specific application details we give you a detailed introduction below. Magnesium hydroxide is a commonly used chemical raw material, widely used, can be used as a flame retardant, but also can be used in the manufacture of magnesium salt, sugar refining, pharmaceutical industry, daily chemical industry, etc. Among them, active magnesium hydroxide is an excellent flame retardant with flame retardant, smoke suppression and filling triple functions in the rubber and plastic industry. Active magnesium hydroxide has excellent buffering properties, reactivity, adsorption capacity, thermal decomposition properties, etc. It can be used as a chemical material and intermediate, as well as a green flame retardant and additive, which is mainly used in the field of environmental protection.

15

2019

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07

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Hefei Zhongke Flame Retardant New Material Co., Ltd

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