The hydrophilic aluminum foil for air conditioner condenser fins is a kind of aluminum foil material with special surface treatment. Its core function is to improve heat exchange efficiency and extend equipment life by optimizing the distribution and discharge of condensed water. Hydrophilic aluminum foil is mainly used on condenser and evaporator fins of refrigeration equipment such as air conditioners and refrigerators.
Hydrophilic aluminum foil is coated with a hydrophilic coating on the surface of ordinary aluminum foil (some products are also superimposed with an anti-corrosion coating) to give it the following functions:
– Hydrophilicity: Condensed water quickly spreads on the surface into a water film instead of water droplets, avoiding the “water bridge” phenomenon between fins, reducing wind resistance, and improving heat exchange efficiency by 5%-15%.
– Corrosion resistance: The coating can prevent aluminum foil for air conditioner from oxidizing to form white powder, reduce mold growth and odor, and extend the life of the heat exchanger.
– Noise reduction and energy saving: Due to the reduction of water droplet accumulation, wind resistance vibration noise is reduced, and energy consumption is reduced at the same time.
– Self-cleaning ability: Because the surface has good hydrophilicity, it is not easy to accumulate dust and dirt, so it has a certain self-cleaning function.
Performance indicators and tests of hydrophilic aluminum foil for air conditioner condenser fins:
– Hydrophilicity: measured by the water drop contact angle, ordinary aluminum foil>70°, hydrophilic aluminum foil<35°, and high-performance products can reach<5°.
– Environmental resistance:
– Alkali resistance test: no bubbling after immersion in 20% NaOH solution for 3 minutes.
– Salt spray test: simulates marine climate, no corrosion spots for 500 hours.
– Adhesion: evaluate the bonding strength between coating and aluminum foil through cross-cutting test and cupping method.
Applications of hydrophilic aluminum foil for air conditioner condenser fins:
– Air conditioning condenser: used for condensers in air conditioning external units to help dissipate heat and improve overall energy efficiency.
– Air conditioning evaporator: used for evaporators in indoor units to improve heat absorption efficiency and enhance cooling effect.
Difference from ordinary aluminum foil:
Ordinary aluminum foil has not undergone the above special treatment, so it does not have these advantages of hydrophilic aluminum foil. During use, ordinary aluminum foil is prone to reduce heat exchange efficiency due to the accumulation of condensed water, and is more susceptible to corrosion due to environmental factors.
