Ultra-fine wytrącony wodorotlenek glinu

Shandong Taixing New Materials Co., Ltd. is a professional manufacturer of Ultra-fine precipitated aluminum hydroxide.

Ultra-fine Precipitated Aluminum Hydroxide ( Al(OH)3 CAS No. 21645-51-2 ) is one type ATH with ultrafine particle size, regular crystal structure, high-purity, high whiteness, low surface activity and small specific surface area, ultrafine precipitated aluminum hydroxide can be widely used in various of processing technology.

Ultra-fine precipitation aluminum hydroxide (chemical formula Al(OH)₃） is a white nano powder prepared by precise titration of aluminum salt solution and hydrothermal synthesis process, with an average particle size of 80-300nm and purity of ≥ 99.99% (total impurities<10ppm). Its core characteristics stem from:

Nano level precise control: using microfluidic precipitation technology, the particles are monodisperse spherical with a particle size distribution deviation of ≤ 5% (D50=200nm, D90-D10≤20nm）， The specific surface area reaches 100-150m ²/g, and the reaction activity is increased by 4 times.

Ultra high purity guarantee: Through membrane separation and chelation impurity removal processes, the content of impurity ions such as Fe, Na, Si, etc. is all less than 1ppm, meeting the strict requirements of semiconductor grade materials for metal ions (such as Fe ³+≤ 0.5ppm).

Surface functionalization design: By adjusting precipitation conditions, the density of surface hydroxyl (- OH), carboxyl (- COOH) and other functional groups can be controlled (0.5-5.0 mmol/g) to meet different interface modification requirements.

Physical and Chemical Properties

Key Advantage:

Low Na2O%: (Soluble Na2O%≤0.015%)

Low Electrical conductivity：≤30μs/cm

Low Residue content(on sieve)：≤0.01% (400Mesh)

Less black spots and impurities：≤25/100gram

Application:Recommended to be used in wires and cables, copper clad plates(CCL), composite insulators, heat insulation material, etc.

1. Catalysts and Energy Materials

Fuel cell:

As a filling material for proton exchange membrane (PEM), nanoparticles are uniformly dispersed in the polymer matrix, increasing proton conductivity by 15% and enhancing the mechanical strength of the membrane layer (tensile strength ≥ 50MPa).

Photocatalytic materials:

After loading TiO ₂, a core-shell structure (Al(OH)₃@TiO₂) is formed, which increases the light absorption efficiency by 40%. When used for organic wastewater treatment, the COD degradation rate reaches 0.2mg/(L · min).

2. Electronic Information and Semiconductors

Advanced ceramic substrate:

Used for AlN ceramic low-temperature co firing (LTCC) process, nano level filling makes the substrate density ≥ 99%, and the dielectric constant (ε) stable at 8.5 ± 0.2, suitable for 5G base station antenna modules.

Semiconductor packaging adhesive:

Added to epoxy resin (filling amount 50vol%), the thermal conductivity is increased to 4.0W/(m · K), and the coefficient of thermal expansion (CTE) is reduced to 6ppm/℃, meeting the reliability requirements of chip level packaging (CSP).

3. Biopharmaceuticals and high-end preparations

Targeted drug delivery system:

After surface coupling with folic acid (FA) modification, it can accurately target tumor cells, with a drug loading of up to 30% (w/w) and an extended in vitro drug release half-life of 48 hours.

Injection grade excipients:

When used as a vaccine adjuvant, the uniformity of particle size (CV ≤ 5%) ensures consistent immune response, and the antigen adsorption efficiency is twice that of traditional aluminum adjuvants.

Packaging:Net weight 25kg/bag, Compound paper-plastic bag

Storage and Attention: Keep in dry, room temperature and moisture proof condition, preventing the heating

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