Polvo de nitruro de aluminio para modificación de superficies

Polvo de nitruro de aluminio para modificación de superficies

Aluminum Nitride Powder has poor stability and can be hydrolyzed in water at ambient temperature, resulting in a decrease in the thermal conductivity of the powder. We offer a range of modified aluminum nitride powders tailored to various applications. Choose the right modification based on your needs: silane modification for better resin compatibility or hydrolysis-resistant treatment for improved moisture resistance.

Aluminum Nitride Surface Modification Powder Specifications

Product		AlN Granulation Powder-1	AlN Granulation Powder-2
Average Particle Size (μm）		40-60	8-15
Sphericity		40-60%	≥98%
Y2O3 (wt%)		3-4	4-5
Impurity Content	Ca (ppm)	<30	<50
	Fe (ppm)	<15	<20
	Si (ppm)	<40	<50
Apparent Density (g/cm3)		0.8-1.0	0.8-1.0
Hall Flow Rate (s/50g)		80-100	80-100
Recommended Sintering Temperature			1750-1850 ℃
Note		Sintering additives can be formulated according to customer requirements.

Aluminum Nitride Surface Modification Powder Morphology

Aluminum Nitride Surface Modification Powder Particle Size Distribution

Aluminum Nitride Surface Modification Powder Features

• High thermal conductivity
• Strong hydrolysis resistance
• Excellent hydrophobicity
• Narrow particle size distribution

Aluminum Nitride Powder Surface Modification Solutions

Tailor your aluminum nitride powder with specialized surface treatments to achieve optimal performance:

• Silane Coupling Agent Modification: Improves dispersion and bonding in polymer matrices (e.g., epoxy, silicone) for superior composite performance.
• Inorganic Hydrolysis Resistant Treatment: Provides long-term stability in humid or aqueous environments by preventing moisture degradation.
• Dual Modification (Silane + Hydrolysis Resistance): Combines enhanced resin compatibility with environmental protection for demanding applications.

Aluminum Nitride Surface Modification Powder Hydrolysis Testing

The unmodified AIN undergoes almost complete hydrolysis after 2 hours at 70°C, resulting in a strong, irritating ammonia odor and significant clumping at the bottom of the cup. In contrast, our modified product shows no ammonia odor and no clumping even after 72 hours of hydrolysis, with almost no signs of hydrolysis.

• Experimental Conditions: 30g of Aluminum Nitride, 300g of pure water, water temperature at 70°C.
• Experimental Method: The degree of hydrolysis is determined by observing the experimental phenomena and measuring the pH value of the solution.

Time (h)	0	1.0	2.0	5.0	10.0	24.0	48.0	72.0
AlN Modified Powder (pH)	5.6	5.7	5.7	5.8	5.9	6.1	6.15	6.15
AlN Unmodified Powder (pH)	7.6	9.4	10.2	10.2	10.1	9.8	9.6	9.6

Aluminum Nitride Powder Solutions

Aluminum Nitride Surface Modification Powder Applications

• Thermal Management: Used in electronic devices and components to improve heat dissipation due to its high thermal conductivity.
• Electrical Insulation: Employed in electrical and electronic industries as an insulating material with high electrical resistivity.
• LED Manufacturing: Applied in LED technology for heat spreaders and substrates to enhance the efficiency and lifespan of LEDs.
• Ceramic Composites: Incorporated into ceramic materials to improve mechanical strength and thermal stability.
• High-Performance Polymers: Used as an additive in polymer composites for enhanced thermal conductivity and mechanical properties.
• Microelectronics: Applied in microelectronics for advanced packaging materials, ensuring better heat conduction and electrical isolation.

Aluminum Nitride Surface Modification Powder Packaging

The Aluminum Nitride Granulation Powder is carefully placed in wooden cases or cartons with additional support from soft materials to prevent any shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.