High Purity Zinc Borate

High purity zinc borate is one of Taixing's products. It is a high-purity, multifunctional flame retardant and performance modifier. Specially designed to provide reliability, consistency, and performance improvement for lithium-ion battery components, special engineering plastics, high-end wires and cables, and transparent flame retardant systems.

Core strengths

·Ultimate purity: The total content of ZnO and B₂O₃ is ≥ 99.5%, and the content of key impurities (such as Pb, Fe, Cl ⁻) is controlled at the ppm level to eliminate material degradation or electrocorrosion risks caused by impurities.

·Excellent electrical performance guarantee: ultra-low ion impurities and optimized particle size distribution significantly improve the volume resistivity and arc tracing resistance index (CTI) of the final composite material, meeting the stringent standards of electric vehicles and high-voltage electrical components.

·Excellent thermal stability and transparency: Dehydration temperature>300 ° C, suitable for high-temperature processing of engineering plastics (such as PBT, PA). Extremely low impurity scattering, making it have minimal impact on the color of the substrate in transparent or light colored products.

·Efficient synergistic flame retardant: Excellent synergy with halogen-free flame retardant systems (such as phosphorus nitrogen series, metal hydroxides), reducing total addition by up to 30%, while significantly reducing smoke density and toxicity.

Mechanism of action

1. Electrical performance guarantee mechanism

In high-voltage electrical, automotive electronics, and lithium battery environments, trace amounts of transferable metal ions (such as Pb ² ⁺, Fe ² ⁺/³ ⁺) and halide ions (Cl ⁻) are the culprits that cause electrochemical corrosion, insulation degradation, and short circuits. ZB-UPX fundamentally eliminates this risk by controlling impurities at the ppm level, ensuring that your composite materials maintain extremely high volume resistivity and comparable tracking index (CTI) in long-term humid and hot environments (such as 85 ° C/85% RH testing).

2. Long term thermal aging and color stability mechanism

Iron and other transition metal impurities are catalysts for the thermal oxidative degradation of polymers. During high-temperature processing or long-term use, they can accelerate substrate yellowing and molecular chain breakage. The ultra-low iron content of ZB-UPX makes it an ideal choice for white/light colored products with strict color requirements or applications that require long-term thermal aging life, such as LED heat dissipation components and automotive engine peripheral components.

3. Efficient synergistic flame retardant and smoke suppression mechanism

High purity ensures the precision of chemical reactions. The boron anhydride (B₂O₃) released by ZB-UPX in the early stages of a fire has extremely high purity and can more effectively:

·Promote carbonization: Form a more uniform, dense, and high-strength expanded carbon layer with the carbon source.

·Capture free radicals: More efficiently quench H • and OH • free radicals in the gas phase.

·Synergistic effect enhancement: When reacting with ammonium polyphosphate (APP) or aluminum diethylphosphinate (ADP), there is no impurity interference, the reaction path is more efficient, and the flame retardant performance is maximized.

Application field

New energy vehicles and high-voltage electrical systems

·Lithium ion battery: The internal insulation film of the battery pack, module spacing heat sheet, and high-voltage wire harness flame retardant coating require extremely low ion impurities to avoid electrochemical corrosion.

·High voltage connectors and relays: PBT and PA based engineering plastic components that meet UL94 V-0, high CTI (>600V), and good fluidity.

·Charging pile components: shell, internal electronic bracket, need to have flame retardancy, weather resistance, and electrical safety.

High end wire and cable

·New energy vehicle interior lines, aerospace cables, UL certified electronic wires, used for insulation and sheath, pursuing low smoke, halogen-free, low toxicity (compliant with IEC 60754, IEC 61034) and excellent extrusion surface quality.

Special engineering plastics

·Transparent/light colored flame-retardant products: such as LED lampshades, optical sensor housings. ZB-UPX has minimal impact on transmittance and color.

·High temperature application components: electrical enclosures, cooling fan impellers, etc. that operate at temperatures above 120 ° C for extended periods of time.

High performance coatings and adhesives

·Used for epoxy sealant, circuit board protective coating, and special industrial fireproof coating that require flame retardant function.

Precautions

·Drying: The High Purity Zinc Borate has been precisely dried, it is recommended to use it directly. If opened for a long time, it can be air dried at 80 ° C for 2 hours.

·Mixing: It is recommended to pre mix with resin particles and other powder fillers using a high-speed mixer to ensure uniform dispersion.

·Processing temperature: It can withstand processing temperatures up to 300 ° C and is suitable for injection molding and extrusion of the vast majority of engineering plastics.

If you are looking for high-purity zinc borate, a highly reliable material that solves the problems of flame retardancy, high CTI, aging resistance, and low smoke, Taixing will be your best choice. Welcome to discuss cooperation with you.