Some knowledge of flame retardant, antimony trioxide manufacturers tell you

Release time:

2024-03-12 08:42

Antimony trioxideThe manufacturer thinksFlame retardants are functional aids that impart flame retardancy to flammable polymers. Flame retardants can be divided into additive flame retardants and reactive flame retardants according to their application methods. The added flame retardant is directly mixed with resin or rubber. Due to convenient processing and wide application, it is the main body of flame retardant. Reactive flame retardants are often bonded to the polymer chain as monomers, which have little effect on product performance and long-lasting flame retardant effect.


Antimony trioxideThe manufacturer thinksAccording to the composition of the flame retardant, the additive flame retardant is mainly inorganic flame retardant.(antimony trioxide, magnesium hydroxide, aluminum hydroxide, silica, etc.), halogen flame retardants (organic chlorides and bromides), phosphorus flame retardants (red phosphorus, phosphate and halophosphate), nitrogen flame retardants, etc. Most reactive flame retardants are monomers of organohalogen flame retardants and organophosphorus flame retardants containing reactive functional groups. In addition, molybdenum compounds, tin compounds, and iron compounds having a smoke-suppressing function also belong to the category of flame retardants.

Antimony trioxideThe manufacturer thinksFlame retardants are mainly suitable for plastics with flame retardant requirements. Flame retardants can delay or stop the burning of plastics. The flame retardant has an extended ignition time, or the flame retardant is self-extinguishing, or is difficult to ignite.

Antimony trioxideThe manufacturer thinksGeneral flammable polymer plastics suchPP, PA, PE, PS, ABS, EVA, PET, PBT, etc. Special applications require the addition of flame retardants. Generally speaking, brominated flame retardants have an absolute advantage in organic flame retardant systems. Although there are many criticisms in environmental protection, it has been difficult to be replaced by other flame retardant systems.

Antimony trioxideThe manufacturer thinksAmong the halogen-free flame retardants, red phosphorus flame retardant is a good flame retardant, which has the advantages of low addition, high flame retardant efficiency, low smoke, low toxicity, and wide application. Red Phosphorus Flame Retardant and Aluminum Hydroxide(magnesium), expandable graphite and other inorganic flame retardants, the preparation of phosphorus/magnesium, phosphorus/aluminum, phosphorus/graphite and other composite halogen-free flame retardants. The amount of flame retardant that can be used is greatly reduced, thereby improving the processability and physical and mechanical properties of the plastic product.

Antimony trioxideManufacturer thinks reactionType flame retardant refers to a flame retardant with reactive functional groups in the molecule, which can participate in the reaction during the polymer synthesis process and be incorporated into the polymer molecule. Its advantages are good stability, long-lasting flame retardant effect, low toxicity, and little influence on plastic properties. It is an ideal flame retardant. The disadvantage is that the application is not convenient, less variety. At present, the amount of flame retardant is onlyAbout 10%-20%. R-type flame retardants are mainly used in thermosetting plastics, and sometimes in thermoplastics. Some reactive flame retardants may also be used as additive flame retardants.

Antimony trioxideThe manufacturer thinks that addingType flame retardant is a flame retardant that is mixed into the plastic before processing and dispersed in the mixture in a physical state. It is characterized by easy use and strong applicability. At present, its amount accounts for the whole flame retardant.80%-90%. The disadvantage is that while improving flame retardancy, it reduces some of the inherent properties of plastics, such as processability and mechanical properties. Addition-type flame retardants are commonly used for thermoplastics.

Antimony trioxide

Popular product recommendations