Boron Nitride (100-250 um)

• CAS: 10043-11-5
• Catalog Number: ALC-FP-10043115
• Category: Featured Products
• Molecular Weight: 24.82 g/mol
• Molecular Formula: BN
• Al: ≤ 0.006%
• Ca: ≤ 0.005%
• Content: Boron nitride:≥ 99%; Free boron oxide:≤ 0.5%
• Fe: ≤ 0.005%
• Mg: ≤ 0.005%
• Sample Lot No.: A24GN03141
• Size: Average particle size:100-250 um

Case Study

Boron Nitride Layer-by-Layer Assembly for Flame-Retardant Oil/Organic Solvent Sorption

Kuru D, et al. Surfaces and Interfaces, 2025, 71, 106900.

Boron nitride nanosheets (BNNSs) were synthesized via liquid-phase exfoliation of hexagonal boron nitride (hBN). Specifically, 0.2 g hBN was ultrasonically dispersed in a 1:1 mixture of isopropyl alcohol and distilled water for 6 h under ice-bath cooling to prevent overheating. The resulting suspension was centrifuged at 4500 rpm for 30 min, and the supernatant containing exfoliated BNNSs was collected as a dipping solution. Using a layer-by-layer (LBL) deposition approach, BNNSs were coated onto porous sponges, including melamine, polyurethane, and cellulose scaffolds. This functionalization imparted hydrophobicity, flame retardancy, and enhanced mechanical strength, enabling efficient and reusable oil/organic solvent sorption. The BN-coated sponges demonstrated strong applicability in wastewater treatment, combining high sorption efficiency with recyclability, thereby highlighting BN's potential in environmental remediation technologies.

Boron Nitride for Enhancing Electrical Insulating Properties of Ester Oils

Hu S, et al. Surfaces and Interfaces, 2025, 72, 107170.

Hexagonal boron nitride (h-BN) was investigated as an additive to pentaerythritol ester (PE) insulating oil to improve dielectric performance. Morphological and structural characterization of isolated h-BN was performed by SEM, XRD, XPS, and UV-Vis spectroscopy. To obtain size-controlled fractions, h-BN powder was ultrasonically dispersed in an IPA/DI solution, followed by sequential centrifugation at 500 rpm and 3000 rpm, yielding large-sheet (37.65%), medium-sheet (11.60%), and small-sheet (3.66%) h-BN. These fractions were incorporated into PE oil at concentrations of 0.01 wt%, 0.005 wt%, and 0.0025 wt%, respectively, using mechanical stirring and sonication at 60 °C, followed by vacuum drying for 48 h to ensure homogeneous dispersions. Dynamic light scattering confirmed size distribution and zeta potential stability. Electrical testing revealed that 2 μm h-BN at 0.01 wt% reduced dielectric dissipation factor by 25% and increased resistivity by 155%, while 0.6 μm h-BN at 0.005 wt% raised AC breakdown voltage from 66.7 kV to 79.4 kV.