Shandong TaiXing Advanced Material Co., Ltd., Shandong Taixing New Materials Co., Ltd. was founded in 1998, is a flame retardant zinc borate 2335 manufacturer specializing in the research, development and manufacturing of environmentally friendly halogen-free flame retardants. Flame retardant zinc borate 2335 is an inorganic flame retardant containing zinc, boron, oxygen, and crystal water. Its chemical composition is 2ZnO·3B₂O₃·3.5H₂O, molecular weight is 434.7, and it appears as a white fine powder. Its thermal decomposition temperature is ≥ 260 ℃. During the combustion process, it releases crystalline water to absorb heat and cool down, while generating a ZnO-B ₂ O ∝ - SiO ₂ glassy protective layer to isolate oxygen and suppress smoke generation. The product has a zinc content of ≥ 37.5%, a boron content of ≥ 36%, and a particle size (D50) of ≤ 2 μ m. It has the characteristics of halogen-free, low toxicity, and strong weather resistance. It can be used in conjunction with bromine based, phosphorus based flame retardants, and metal hydroxides to significantly improve flame retardant efficiency and reduce costs.
Production advantages:
1. Advanced preparation technology
Adopting the "zinc oxide boric acid aqueous solution synthesis method", by precisely controlling the reaction temperature (90-100 ℃), pH value (5.5-6.5), and aging time, spherical particles with uniform particle size are formed, avoiding the agglomeration problem of traditional dry methods, with a production capacity of 2000 tons/year.
2. Full process quality control
Raw material selection: Select zinc oxide and boric acid with a purity of ≥ 99.5% and a heavy metal content of ≤ 10ppm to ensure product safety.
Precision testing: Each batch of products needs to undergo 6 tests including XRD (phase analysis), TGA (thermal stability), and laser particle size analyzer (particle size distribution), with a failure rate of less than 0.1%.
| Items | Unit | ZB-2335 |
| Appearance | — | White Powder |
| B2O3 | % | 47.0 ～ 49.0 |
| ZnO | % | 37.5 ～ 39.5 |
| Moisture | % | ≤0.3 |
| Loss on Ignition | % | 13.0~15.5（450℃) |
| Whiteness | % | ≥96.0 |
| Particle Size,D50 | µm | ≤7.0 |
| TGA(1%) | ℃ | ≥345 |
| Chloride(Cl- ) | % | ≤0.05 |
| Sulphate(SO42-) | % | ≤0.005 |
High Purity: >99%
High Whiteness：≥96%
High Decomposition Temperature：the TGA(1%) is over 345℃ , allow high thermal processing.
Low Cl- %, Low SO42-%：Cl-≤300ppm, SO42-≤50ppm.
No white precipitate during product use.
Application:Recommended to be used in engineering plastics, rubber based compounds such as hose, conveyor belt, coated canvas, FRP, wire and cable, electrical components, coating and painting, etc.
Packaging:Net weight 25kg/bag, Compound paper-plastic bag
Storage and Attention:Keep in dry, room temperature and moisture proof condition, preventing the heating.
Welcome to order
Flame retardant zinc borate 2335 has become an ideal choice for improving the flame retardant performance of products due to its high efficiency, synergy, environmental protection, and safety characteristics.
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Lvye Road West, Diao Town Chemical Industry Park, Mingshui Economic & Technology Development Zone, Zhangqiu, Jinan , China
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