What properties do composite flame retardants need to have?
Flame retardants are a class of additives that prevent ignition of polymeric materials or inhibit flame propagation. The adaptation surface is large but has an impact on the performance of the composite. Reactive flame retardants are added to the polymerization system as a different monomer raw material during polymer preparation,
Flame retardants are a class of additives that prevent ignition of polymeric materials or inhibit flame propagation. The adaptation surface is large but has an impact on the performance of the composite. Reactive flame retardant is in the polymer preparation process as a different monomer raw materials into the polymerization system, so that through the chemical reaction to the polymer molecular chain, so the performance of the composite material is less affected, and flame retardant lasting. Reaction typeflame retardantIt mainly includes phosphorus-containing polyols and halogenated anhydrides. Flame retardants for composite materials shall have the following properties:
① High flame retardant efficiency, can give the composite material good self-extinguishing or flame retardant;
② has good compatibility, can be well compatible with composite materials and easy to disperse;
It has a suitable decomposition temperature, that is, it does not decompose at the processing temperature of the composite material, but it can decompose rapidly when the composite material is decomposed by heat to exert the effect of flame retardant;
④ non-toxic or low toxicity, odorless, no pollution, no toxic gas in the flame retardant process;
⑤ When combined with composite materials, the mechanical properties, electrical properties, weather resistance and thermal deformation temperature of composite materials shall not be reduced;
The durability is good, can be retained in the composite material products for a long time, play its flame retardant effect;
The source of a wide range of low prices.
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.