Hydrophilic aluminum foil is obtained by coating the surface of aluminum foil with hydrophilic coating, the purpose is to improve the hydrophilic (water-attracting) performance of the aluminum foil, and it has higher heat transfer efficiency and corrosion resistance.
Hydrophilic Aluminum Foil is a specialized type of aluminum foil that has undergone a surface treatment to enhance its hydrophilic (water-attracting) properties.
Hydrophilic Aluminum Foil is commonly used in various applications where efficient heat transfer and moisture management are required. The hydrophilic coating applied to the foil’s surface allows it to rapidly and uniformly distribute condensation or liquid, facilitating better heat exchange in heat exchangers, air conditioning systems, and radiators.
Aluminum Hydrophilic Foil
Compared to regular aluminum foil, which has hydrophobic properties and repels water, Hydrophilic Aluminum Foil offers superior performance in terms of heat transfer efficiency and corrosion resistance.
| Alloy | Temper | Thickness(mm) | Tensile Strength(MPA) | Elogation At 50mm Interval(%) | Cup I.E,mm |
| 1100 3102 8011 |
O | 0.08-0.20 | 80-110 | ≥20 | ≥6.0 |
| H22 | 0.08-0.20 | 100-130 | ≥18 | ≥6.5 | |
| H24 | 0.08-0.20 | 115-145 | ≥16 | ≥6.0 | |
| H26 | 0.08-0.20 | 135-165 | ≥10 | ≥5.5 | |
| H18 | 0.08-0.20 | ≥160 | ≥6 | – |
Note: As the raw material of hydrophilic foil, 8011 aluminum foil is the most common alloy
| INNER DIAMETER | 76/152MM. |
| Thickness And Thickness Tolerance : | |
| Thickness(mm) | Thickness Tolerance |
| 0.080 | ±0.005 |
| > 0.115-0.130 | ±0.008 |
| > 0.130-0.32 | ±0.010 |
| Width And Tolerance : | |
| Width(mm) | Width Tolerance |
| ≤500 | ±0.005 |
| > 0.115-0.130 | ±0.008 |
| > 0.130-0.32 | ±0.010 |
| REEL : | |
| Width(mm) | Width Tolerance |
| ≤1400 | +2.0,0 |
| Telescopic And Layer : | |
| Telescopicy: 5MM | Layer: 0.5mm |
Note: Hydrophilic aluminum foil is available in jumbo rolls, there is a certain relationship between tolerance and size.
| Item | Inspection Methods | Technical Requirements | |
| Film (Double Surface) |
Weighing | Anti-Corrosion:1.6—2.0G/M2
Hydrophilic:0.4-0.7G/M2 |
|
| Adhesion | Cup Test:5mm | No De-Laying | |
| Jis4001 Network Test(100/100) | No Peeling | ||
| T Test(180 Degree) | No De-Laying | ||
| Hydrophilic | Initial Phase | Coating Status | ®≤5C |
| Continuous Test Phase | Dipping 100 Hours In Flow Water (300 L/H),Drying For 2 H, Then Test | Humidity100%:®≤20C | |
| Dry Cycle 300 Times | Humidity 100%:®≤28c | ||
| Dipping Into Volatilizing Solvant For 5min. And Drying It In Temperature 150 Degree, Then Dipping Into Flow Water For 5min. Then Drying In Oven Of Temperature 150 Degree For 150 Degree, Then Test It | Humidity 100%:®≤28C | ||
| Anti-Corrosion | Jisz2371 Nutual Salt Spray Test(72 H) | R.NO.≥9.8 | |
| Anti-Alikalinity | Sample Dip For 3min In 20% Naoh For 20 C+/-1 C | No Changing | |
| Anti-Hot | In 200+/-5c Oven For 10min. View Film Color | No Changing | |
| In 300+/-5 Oven For 5min, View The Color | Slightly Green | ||
| Anti-Oil | Dipping Into Volatilizing
Oil(Af-2c,Af-2as,T7k18b,Rf-190) For 24 H |
No Peeling | |
The hydrophilic coating on the aluminum foil promotes improved moisture absorption and increases the surface area, resulting in enhanced heat transfer efficiency. This allows for better cooling and heat dissipation, making it ideal for heat exchangers, air conditioning systems, and refrigeration units.
Hydrophilic Aluminum Foil is highly resistant to corrosion, making it suitable for applications in humid and corrosive environments. This resistance ensures the durability and longevity of the foil, even in challenging conditions, thereby reducing maintenance needs and extending the lifespan of equipment.
By facilitating efficient heat exchange, Hydrophilic Aluminum Foil helps optimize energy usage. It allows systems to cool more effectively, reducing the energy consumption required for maintaining desired temperatures. This can lead to energy savings and cost reduction in long-term operations.
Aluminum is a recyclable material, and the hydrophilic foil can be recycled after use, contributing to sustainable practices and reducing environmental impact. Choosing Hydrophilic Aluminum Foil aligns with eco-friendly initiatives and supports a circular economy.
The production process of hydrophilic aluminum foil is basically the same as that of aluminum foil, except that 3 processes are added in the middle;
Aluminum Hydrophilic Foil Production Line
After the rolling of the aluminum foil is completed, the following 3 steps are performed:
Rewind after the above 3 steps (this process is exactly the same as aluminum foil production)
Hydrophilic foil is widely used in refrigeration equipment such as air conditioners and refrigerators, as well as some industrial heat exchange systems;
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| Air conditioning systems | Refrigerator | Heat exchangers |
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| Radiators | Condenser | Evaporator |
Dry Environment: Store hydrophilic aluminum foil in a dry environment with low humidity levels. Moisture can affect the hydrophilic properties of the foil and lead to degradation.
Temperature Control: Maintain a stable temperature for the storage area. Extreme temperatures can impact the structural integrity and performance of the foil.
Protection from Contaminants: Keep the hydrophilic foil away from dust, dirt, and other contaminants that could potentially affect its surface or hydrophilic coating.
Hydrophilic Aluminum Foil Storage
Avoid Pressure and Impact: Avoid placing heavy objects or applying pressure on the stored hydrophilic foil. Excessive pressure or impact can cause deformation or damage to the foil, compromising its effectiveness.
Ordinary aluminum foil cannot meet the requirements of energy saving, environmental protection, corrosion resistance, and antibacterial for air conditioners. Hydrophilic aluminum foil has strong hydrophilicity. The water droplets condensed on the heat sink are easy to spread and flow down the heat sink to avoid low ventilation effect.
The surface of the hydrophilic aluminum foil is covered with a hydrophilic layer, and the condensed water will spread rapidly on the hydrophilic aluminum foil without condensing into water droplets, which increases the heat transfer area, speeds up the cooling and heating speed, and effectively avoids the noise caused by air flow.
| Hydrophilic Aluminum Foil | Copper Foil | |
|---|---|---|
| Heat Transfer | Good | Excellent |
| Moisture Management | Excellent | Limited |
| Corrosion Resistance | Good | Excellent |
| Weight | Lightweight | Relatively Heavy |
| Cost | Affordable | Expensive |
| Availability | Widely Available | Limited |
| Electrical Conductivity | Moderate | Excellent |
| Compatibility | Suitable for most applications | Suitable for specific applications |
Q:What is hydrophilic coating?
A:acrylic or epoxy
Q:Can Hydrophilic Aluminum Foil be recycled?
A:Yes, Hydrophilic Aluminum Foil can be recycled. Aluminum is highly recyclable and can be processed repeatedly without losing its properties. Recycling Hydrophilic Aluminum Foil helps conserve natural resources and reduces the environmental impact associated with primary aluminum production.
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