What are the factors related to the effect of flame retardants?
Flame retardants play a role through a variety of mechanisms, most of which work together to achieve the purpose of flame retardant. However, in the use of flame retardants, there are many factors that affect its flame retardant effect.
flame retardantIt plays a role through a variety of mechanisms, most of which work together to achieve the purpose of flame retardant. However, in the use of flame retardants, there are many factors that affect its flame retardant effect. The following is a brief introduction of the factors affecting the flame retardant effect.
1. human factors
The amount of flame retardant added to the extrusion board is very small, generally less than 10%. In order to make the flame retardant evenly distributed in the material, mixing is a key part. In order to make the flame retardant containing about 5 grams per 100 grams of material uniform, a large amount of manual mixing or special mixer is required to mix. Most manufacturers spray the flame retardant directly on the surface of the material and send it directly to the surface Feeder. Although the feeder has its own mixing, it can only form a small dispersion area in a short time and then extrude it.
Factors Affecting Flame Retardant Effect of Flame Retardant
2. equipment factors
Different equipment manufacturers have different design processes for the gap, advancing speed, and plasticizing and dispersing screw blocks of the screw barrel, resulting in different plasticizing and dispersing residence times of materials in the screw barrel.
3. flame retardant factors
Flame retardants produced in China are mainly powder and particles. Due to the different density and PS particles, only a small part can be adsorbed by friction static electricity during the mixing process, and most of them will precipitate to the bottom of the mixing equipment along the particle gap, resulting in uneven dispersion of the flame retardant. The powder adsorbed on the surface of the particle first contacts the spiral shell, encounters high temperature, and decomposes seriously. In the decomposition process, the free bromine reacts with the screw shell to produce iron bromide peeling, which is very corrosive to the equipment and is not recommended.
Real-time information
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.
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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