Zinc Borate Flame Retardant

Zinc borate flame retardant is a white odorless crystalline powder. Its core components achieve the organic integration of flame retardancy, smoke suppression, reinforcement and anti-aging by precisely regulating the mole ratio of boron and zinc and the content of crystal water. It can solve the industry pain points of uneven particle size distribution, strong surface polarity, and poor compatibility with polymer substrates in dry process products. It can achieve uniform dispersion in materials such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), epoxy resin, unsaturated polyester, etc.

Core strengths

1. The "spatiotemporal efficiency enhancement" mechanism of ATH/MDH system

·Time dimension - delayed decomposition, broadening the protection window: The borate component in ZB can form a molten protective film on the surface of ATH/MDH particles, allowing their dehydration and endothermic reactions to occur smoothly and continuously over a wider temperature range, avoiding concentrated heat release and significantly improving the material's flame resistance time (such as shorter residual flame time tested by UL94 V-0).

·Space dimension - constructing a "ceramicized" composite carbon layer: ATH/MDH generates highly active alumina/magnesia after dehydration, which is prone to loss if not fixed. The glassy borate network formed by ZB during combustion can anchor these metal oxides in the carbon layer, forming a ceramic like expansion barrier that combines thermal insulation, oxygen isolation, and mechanical strength, and increasing flame retardant efficiency by more than 30%.

2. "Skeleton Enhancement" Mechanism of Phosphorus Nitrogen Expansion System

In the expansion flame retardant system, the strength of the carbon layer determines its long-lasting protective ability. The zinc ions in ZB can catalyze the formation of more aromatic carbon structures, while boron oxide acts as a "binder" to crosslink the phosphate ester fragments in the carbon layer, forming a denser, higher strength, and more resistant to airflow erosion of the expanded carbon layer, effectively preventing cracking and collapse of the carbon layer, especially suitable for applications with strict requirements for vertical combustion and anti dripping.

3. Dual locking mechanism of "smoke suppression and anti droplet"

ZB not only effectively reduces smoke density, but its uniqueness lies in synchronously suppressing droplets. It fundamentally eliminates the generation of flame carrying molten droplets during combustion by improving the viscoelasticity of polymer melts at high temperatures and promoting surface crust formation in the early stages of droplet formation, which is crucial for meeting strict electronic and electrical safety standards.

Application scenarios

1. High voltage cables and components for new energy vehicles

Require extremely high fire resistance (IEC 60331), low smoke and halogen-free, long-term heat aging resistance, and excellent mechanical properties.

2. Low smoke halogen-free cables and conduits for high-rise buildings

Must meet strict fire integrity and low smoke toxicity standards such as BS 8491 and EN 50575.

3. Smart Home and Consumer Electronics Shell

Thin walled design requires higher efficiency of flame retardants, while also meeting UL94 V-0, good appearance, and impact resistance.

4. Wire and cable industry

Used as a low smoke halogen-free cable sheath material, insulation material, and flame-retardant filling rope to enhance the flame-retardant rating and aging resistance of cables, meeting the safety requirements of special scenarios such as rail transit, high-rise buildings, and nuclear power plants.

5. Plastic building materials field

It is added to PVC pipes and fittings, PP/PE insulation plates, fire-resistant foam, and glass fiber reinforced plastic products, giving the materials excellent flame retardancy and weather resistance, and meeting the Class B1 standard of building fire protection acceptance GB 8624-2012.

Frequently Asked Questions

Q1: What are the specific advantages of Taixing Zinc Borate Flame Retainer compared to traditional general-purpose zinc borate?

A1: The core of "specialization" is the precise matching of surface chemistry and particle size distribution. For example, the surface of ZB-AD is hydrophilic, aiming to form a tighter encapsulation and interaction with ATH/MDH particles; The surface of ZB-PN is organic friendly, aimed at better compatibility with carbon and acid sources in flame retardants, achieving molecular level synergy. This design ensures that each product can achieve the fastest response speed and highest efficiency in its target system, avoiding performance compromises in a one size fits all formula.

Q2: In today's emphasis on environmental protection, what is the long-term environmental safety of zinc borate?

A2: Zinc Borate Flame Retainer product itself is non-toxic and free from heavy metal hazards. The boron and zinc contained in it are both trace elements required by living organisms. We ensure that our products do not contain harmful soluble borates through strict process control. Under the EU CLP regulations, it is usually not classified as dangerous goods. In the polymer matrix, it is firmly fixed in a chemical bonding form, and the leaching risk is extremely low throughout the entire service life of the product and reasonable disposal process, making it a truly environmentally friendly flame retardant solution.

Q3: How can I determine the optimal amount of zinc borate to be added to my new formula?

A3: There exists an 'optimal collaboration window', rather than more being better. Usually, this window is determined by the "oxygen index addition amount" curve or the "mechanical properties flame retardant rating" equilibrium point. Our technical team can quickly determine the optimal addition point for you based on your base resin, main flame retardant type, and target performance through experimental design methods, avoiding cost and performance losses caused by excessive addition.

If you are looking for zinc borate flame retardants, halogen-free flame retardant synergists, high-efficiency zinc borate, zinc borate flame retardants, halogen-free zinc borate manufacturers, polymer material zinc borate additives, environmentally friendly zinc borate flame retardants, industrial grade zinc borate, Taixing will be your best choice. Welcome to discuss cooperation!