High-Porosity Nickel Foam for Efficient Filtration and Flame Arresting

Nickel foam is a functional material composed of three-dimensional network structure of metallic nickel. It features high porosity, large specific surface area, and excellent thermal conductivity and high mechanical strength. Its internal, uniformly distributed interconnected pores give it unique advantages in applications involving sound absorption, filtration, flame retardation, heat dissipation, and as a catalyst carrier.

NF-01: Hexagonal nickel foam

Working Principle

Leveraging its three-dimensional porous structure and nickel’s thermal conductivity, nickel foam delivers multiple functions:

• Adsorption & filtration. The sponge-like structure offers an ultra-large specific surface area, effectively capturing and trapping particulate impurities.
• Heat conduction. High thermal conductivity allows for rapid heat transfer and dissipation.
• Fluid regulation. Narrow pores evenly distribute gases or liquids to maintain a stable flow.
• Flame resistance. The pores absorb flame heat, lowering the temperature below the ignition point and preventing flame propagation.

Specifications

• Pore size: 0.1–10 mm (5–130 PPI)
• Porosity: 95% – 98%
• Shape: Circle, square, hexagon (can be customized)
• Porosity: ≥ 98%
• Bulk density: 0.1–1.0 g/cm³
• Standard size: 500 × 1000 mm (customizable)
• Operating temperature: It can withstand high temperatures over extended periods, with short-term tolerance exceeding > 1100 °C.

NF-02: Circular nickel foam

NF-03: Regular polygonal nickel foam

Features

• Excellent sound absorption. The porous structure provides broadband noise reduction.
• Thermal and sound insulation. Effectively blocks heat transfer and noise propagation.
• High chemical stability. Excellent resistance to acids, alkalis and oxidation.
• Good mechanical properties. Flexible, bendable, easy to cut and bond.
• Excellent high-temperature resistance. Stable performance over long periods and superior thermal shock resistance.
• Strong fluid dispersion capability. Evenly distributes gases and liquids, reducing turbulence.
• High thermal conductivity. Uniform pores and dense structure enable rapid heat transfer.

Applications

• Explosion-proof and flame arresting: Used in storage tank breather valves, pipeline flame arresters, and battery pressure relief valves to prevent flame propagation.
• Battery and new energy: Used in lithium batteries and flame-arresting disks for safety valves, improving system safety.
• Filtration and purification: Suitable for filtering high-temperature or highly corrosive gases and liquids.
• Catalyst carrier: Functions as a catalyst support to enhance reaction efficiency.
• Sound insulation and noise reduction: Used in industrial equipment noise reduction and building acoustics.
• Heating and heat dissipation: Used in electric heating elements and as surface materials for infrared heaters.