Zinc borate halogen-free flame retardant, as an important inorganic flame retardant, has the following remarkable properties:
Excellent flame retardant performance: Zinc borate can decompose at high temperatures, releasing crystalline water, which plays a role in absorbing heat and cooling, thereby reducing the temperature in the combustion area. Meanwhile, the boron oxide (B₂O₃) produced by decomposition will form a glassy coating on the material surface, isolating the contact between oxygen and flammable gases and inhibiting the further progress of combustion. This dual-action mechanism makes zinc borate perform well in terms of flame retardancy.
Good smoke suppression effect: Zinc borate can effectively reduce smoke generation during the combustion process. This is because its flame-retardant mechanism not only suppresses the spread of flames but also reduces the generation of incomplete combustion products during the combustion process, thereby lowering the concentration of smoke. This is of great significance for improving the visibility at the fire scene and the safety of personnel evacuation.
High thermal stability: Zinc borate has high thermal stability and can maintain its flame retardant performance in high-temperature environments. This makes it suitable for various high-temperature processing techniques, such as plastic extrusion and injection molding, without losing its flame-retardant effect due to high temperatures.
Non-toxic and environmentally friendly: As a halogen-free flame retardant, zinc borate does not contain halogen elements, so it will not produce toxic hydrogen halide gas during combustion. Meanwhile, it is non-toxic and harmless in itself, having no adverse effects on the environment and human health, and meeting modern environmental protection requirements.
Good compatibility: Zinc borate has excellent compatibility with a variety of polymer materials and can be evenly dispersed in the materials without significantly affecting their physical and processing properties. This enables it to be widely applied in fields such as plastics, rubber and coatings.
Significant synergistic effect: Zinc borate can produce a synergistic effect with other flame retardants (such as aluminum hydroxide, magnesium hydroxide, etc.), jointly enhancing the flame retardant performance of materials. This synergistic effect enables the amount of flame retardant used to be reduced and costs to be lowered while achieving the same flame-retardant effect.
Versatility: In addition to its flame-retardant properties, zinc borate also has certain functions of smoke suppression, anti-dripping and promoting carbonization. These multi-functionalities enable it to enhance the safety of materials while also improving their processing performance and application performance.
