Zinc borate, also abbreviated as ZB2335, has the chemical formula 2ZnO·3B2O3·3.5H2O. This flame-retardant material is primarily used for cable protection in buildings. In addition to its flame-retardant properties, it also has other specific applications, providing high levels of protection, durability, and infrared absorption.
1. Good compatibility with resin, without affecting the physical properties of the product
2. Easy to disperse, with good processing fluidity
3. No precipitation, no migration, long-lasting flame retardant effect
4. Non corrosive to processing equipment
5. Good color stability, does not affect the appearance of the product
1. Plastic industry (PVC products, engineering plastics, rubber products)
2. Building materials (fireproof coatings and paints, flame-retardant insulation materials, fireproof boards and decorative materials, flame-retardant sealants and adhesives)
3. Electronic appliances (flame retardant coatings for circuit boards, packaging materials for electronic components, electrical enclosures and insulation materials, flame retardant sheaths for cables)
4. Textile industry (flame retardant fabrics and clothing, fire-resistant curtains and decorative fabrics, industrial fire-resistant textiles, automotive interior flame retardant materials)
5. Transportation (flame retardant treatment for automotive interior parts, aerospace materials, fire-resistant materials for ship interiors, flame retardant components for high-speed rail carriages)
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| Items | Unit | Index |
| Appearance | — | White Powder |
| B2O3 | % | 52.0 ~ 56.0 |
| ZnO | % | 42.0 ~ 44.0 |
| Whiteness | % | ≥92.0 |
| Moisture | % | ≤0.5 |
| Loss on Ignition(400℃ ) | % | ≤1.5 |
| Sulphate(SO42-) | % | ≤0.005 |
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