In the field of advanced materials, Anhydrous Zinc Borate plays a vital role as an environmentally friendly flame retardant and smoke suppressant. This versatile compound is widely used in plastics, rubber, coatings, and electronic components to improve fire resistance and durability. With growing demand for non-halogenated flame retardants, Anhydrous Zinc Borate has become a preferred choice across multiple industries due to its stable performance, low toxicity, and compatibility with other materials.
As a manufacturer with years of industry experience, Shandong Taixing Advanced Material Co., Ltd. specializes in producing high-quality Anhydrous Zinc Borate with consistent purity and superior performance. Below, we'll explore its functions, advantages, technical parameters, and common applications.
Anhydrous Zinc Borate is an inorganic compound known for its excellent flame-retardant and smoke-suppressing properties. Unlike traditional halogen-based flame retardants, it offers a non-toxic and eco-friendly alternative that meets global environmental standards such as RoHS and REACH.
It acts primarily by releasing water and forming a glassy protective layer when exposed to high temperatures, thereby reducing flammable gas generation and slowing the combustion process. This makes it an indispensable additive for fire safety in high-performance materials.
Key Features:
Excellent flame retardancy and smoke suppression
Environmentally friendly and non-toxic
Strong thermal stability and chemical resistance
Compatible with various polymers and resins
Cost-effective with long-term protection
The following table presents the typical parameters of Anhydrous Zinc Borate supplied by Shandong Taixing Advanced Material Co., Ltd.:
| Item | Specification | Test Method |
|---|---|---|
| Chemical Formula | 2ZnO·3B₂O₃ | — |
| Appearance | White Powder | Visual |
| Zinc Oxide (ZnO, %) | 37.0 ± 1.0 | GB/T 1250 |
| Boron Oxide (B₂O₃, %) | 48.0 ± 1.0 | GB/T 1250 |
| Loss on Ignition (%) | ≤1.0 | GB/T 7325 |
| Particle Size (D50, µm) | 5–7 | Laser Diffraction |
| pH (10% Suspension) | 7–8 | GB/T 9724 |
| Specific Gravity | 2.7 g/cm³ | GB/T 1632 |
| Refractive Index | 1.58 | ASTM D542 |
These parameters demonstrate its high purity, stability, and suitability for various processing environments such as extrusion, injection molding, and compounding.
1. Plastics and Polymers
Anhydrous Zinc Borate is widely used in PVC, PE, PP, EVA, and other engineering plastics. It enhances flame retardancy and smoke suppression while maintaining mechanical strength.
2. Rubber Industry
When added to rubber compounds, it improves heat resistance and reduces the risk of ignition, especially in cable sheathing and conveyor belts.
3. Coatings and Paints
It provides anti-corrosive and flame-retardant properties in coatings, protecting surfaces from heat and flame exposure.
4. Electronic Components
Used in insulating materials, it prevents fire propagation and improves product reliability in high-temperature environments.
5. Glass and Ceramics
Due to its boron content, Anhydrous Zinc Borate can also serve as a fluxing agent, improving the mechanical properties of glass and ceramic materials.
Environmental Compliance: Free from halogens, meeting international environmental protection standards.
Thermal Stability: Performs effectively under high processing temperatures without decomposing.
Synergistic Effect: Works well with aluminum hydroxide (ATH), magnesium hydroxide (MDH), and antimony trioxide to enhance flame retardancy.
Cost Efficiency: Reduces total additive loading due to strong performance at low concentrations.
Long-Term Durability: Maintains properties over time even under harsh environmental conditions.
Store in a dry, well-ventilated area away from moisture and strong acids.
Avoid prolonged exposure to air to prevent moisture absorption.
Use protective gloves and dust masks during handling to minimize dust inhalation.
Recommended shelf life: 24 months under normal storage conditions.
Q1: What is the main function of Anhydrous Zinc Borate in flame-retardant systems?
A1: Its primary function is to act as a flame retardant and smoke suppressant. It decomposes at high temperatures to form a protective glassy layer, which isolates oxygen and reduces combustible gas generation.
Q2: Can Anhydrous Zinc Borate be combined with other flame retardants?
A2: Yes. It shows excellent synergistic effects when used with aluminum hydroxide, magnesium hydroxide, or antimony trioxide, significantly improving the overall flame-retardant performance.
Q3: Is Anhydrous Zinc Borate safe for the environment?
A3: Absolutely. It is non-toxic, halogen-free, and fully compliant with RoHS and REACH environmental regulations, making it suitable for sustainable manufacturing applications.
Q4: What industries benefit most from using Anhydrous Zinc Borate?
A4: It is highly valued in plastics, rubber, coatings, electronic components, glass, and ceramic industries due to its excellent flame retardancy and stability.
As a leading manufacturer and supplier, Shandong Taixing Advanced Material Co., Ltd. provides consistent quality, technical expertise, and reliable delivery of Anhydrous Zinc Borate. The company's advanced production facilities and strict quality control ensure stable performance and high purity in every batch.
Our Commitment:
High-quality raw materials
Customized particle size options
Stable supply and global logistics support
Technical consultation and after-sales service
Anhydrous Zinc Borate has proven to be one of the most effective, eco-friendly flame retardants in the market today. Its thermal stability, smoke suppression, and environmental compliance make it indispensable for industries focused on safety and sustainability. Contact us.
